CN103178666A - Combined motor with switched reluctance motors and double disk type permanent magnet motors with axial magnetic fields - Google Patents
Combined motor with switched reluctance motors and double disk type permanent magnet motors with axial magnetic fields Download PDFInfo
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- CN103178666A CN103178666A CN2012102846951A CN201210284695A CN103178666A CN 103178666 A CN103178666 A CN 103178666A CN 2012102846951 A CN2012102846951 A CN 2012102846951A CN 201210284695 A CN201210284695 A CN 201210284695A CN 103178666 A CN103178666 A CN 103178666A
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Abstract
The invention discloses a combined efficient motor with switched reluctance motors and double disk type permanent magnet motors with axial magnetic fields. The combined efficient motor comprises is characterized in that a left rotor disk, a middle stator and a right rotor disk form the double disk type permanent magnet motors with the axial magnetic fields, the left rotor disk, the right rotor disk, a left SRM (switched reluctance motor) stator and a right SRM stator form the two switched reluctance motors, and the left SRM stator and the right SRM stator are arranged on end covers. The stator is shared by the double disk type permanent magnet motors with the axial magnetic fields; and each disk type permanent magnet motor and the corresponding switched reluctance motor share the corresponding rotor disk, tooth sockets on circumferences of the rotor disks are ventilating slots of the disk type permanent magnet motors to realize cooling effects, and are also used as rotor teeth of the switched reluctance motors, and the tooth sockets and the SRM stators form the switched reluctance motors. Accordingly, the combined efficient motor with the two switched reluctance motors and the double disk type permanent magnet motors with the axial magnetic fields has a ventilating cooling structure, space is sufficiently utilized, two types of motors are smartly combined with one another, and the combined motor is high in efficiency.
Description
Technical field
The invention belongs to the high efficiency motor of double plate axial magnetic field permanent magnet motor and two switched reluctance machines combinations.More particularly, relate to intermediate stator and both sides rotor disk and form the axial magnetic field permanent magnet motor, the both sides rotor disk is simultaneously again as the rotor of radial magnetic field switched reluctance machines, and has the self-ventilation cooling structure concurrently.The present invention takes full advantage of the inner space, and two kinds of motors carry out ingenious combination, integrates 4 motors, has compact conformation, power density is high, efficient is high characteristics.
Background technology
Magneto is widely used in every field and people's daily life, and magneto can be divided into two kinds of radial magnetic field and axial magnetic fields by magnetic direction.Motor in axial magnetic field also is disc-type permanent magnet motor.At present, using more is single disc-type axial magnetic field permanent magnet motor, high efficiency, but power bracket is less, and speed and torque output is single, and its type of cooling mostly is at outside motor and adds the air-cooled of fan or add the water-cooled of water jacket at motor internal, and its structure is more complicated all.Switch reluctance machine rotor is the salient pole core construction, both do not had winding there is no permanent magnet on it yet, and stator core is also salient-pole structure, wherein be distributed with heterogeneous concentrated winding, spatially independent of one another between each phase winding, so this kind motor has advantages of simple in structure, reliable and fault-tolerant ability is strong, along with the development of power electronic technology, has obtained more and more general application.In order better to use and bring into play the advantage of above two kinds of motors, carry out ingenious combination, make its bulk density, power density more desirable.
Summary of the invention
The present invention considers that just above-mentioned reason designs, its purpose is to provide the motor of a kind of high efficiency with self-ventilation cooling structure and multi-state output, high power density, high-power scope, permanent magnetism axial magnetic field disk motor and two switched reluctance machines of being comprised of intermediate stator and both sides rotor disk consist of, and can take full advantage of the inner space.
The technical solution adopted for the present invention to solve the technical problems is:
1, double plate axial magnetic field permanent magnet motor in the present invention is two motors in fact, be equivalent to install again a disc type axial magnetic field permanent magnet motor additional in a side of a disc type axial magnetic field permanent magnet motor, by the left-hand rotation sub-disk, intermediate stator and right-hand rotation sub-disk consist of, intermediate stator is two motor sharing body, with the motor housing body, left, right-hand rotation is fixed on same output shaft mechanically, but this two motor synchronous rotaries work, fully improve torque and the bulk density of motor, but also each independent rotary work, energy efficient, this double plate motor in axial magnetic field only has a mechanical output shaft, simple in structure.
2, left and right rotor all is equivalent to the rotor of common disc type axial magnetic field permanent magnet motor, all be comprised of rotor disk and permanent magnet, and left and right rotor number of poles is identical.
3, its excircle direction of left and right rotor disk is offered teeth groove, and this teeth groove becomes again the ventilation slot of disc-type permanent magnet motor on the other hand on the one hand as the rotor teeth groove of switched reluctance machines, plays the ventilated cooling motor effect, and is simple in structure.
4, the intermediate stator of double plate magneto is made of stator core and stator winding.Stator core with silicon-steel sheet coiled around forming, process respectively the teeth groove of corresponding and even distribution, equal number on the left and right both ends of the surface of stator core, the distribution of the stator winding in teeth groove, wire gauge, every groove conductor count up to entirely identical, stator left side groove conductor is with right side groove conductor series connection coiling, form the multi-layer annular winding around, form the coil sharing structure, this end winding is very short, can save copper material, reduce costs.
5, the switched reluctance motor in the present invention is two radial magnetic field switched reluctance machines in fact, is made of the left and right SRM field frame assembly that is equipped with on left and right rotor disk and left and right end cap respectively, and the inner space utilance is high.
6, the left stator of two switched reluctance motors, right stator winding can serial or parallel connection together, adopt a cover controller, control simultaneously left and right stator winding, be equivalent to only have a switched reluctance machines operation, also can control separately wherein motor operation, and make motor be in all the time the optimum efficiency running status, thereby improve the comprehensive operation efficiency of motor.
7, form the left stator of switched reluctance machines, right stator winding all by the polyphase windings of concentrating distribution coil to form.When certain coil in left and right stator (being certain phase winding) when having fault not work, can cut off the electric current of this phase winding left side of living in or right stator winding, and the opposite side stator winding of only powering, namely can maintain a complete switched reluctance machines job, this moment, motor still had good runnability, had improved the fault-tolerant operation performance of this kind motor.
8, motor of the present invention is to be combined by double plate permanent magnetism motor in axial magnetic field and two switched reluctance machines, wherein left/right rotation sub-disk, intermediate stator, shell body, output shaft are the sharing structure between different motors, parts and inner space thereof are fully used, and have consisted of a kind of motor of more efficient, multi-state output.
Compared to the prior art the present invention has following characteristics: one, design simplification of the present invention motor cooling, make the motor economical with materials, can raise the efficiency again; Two, the present invention utilizes double plate axial magnetic field permanent magnet motor, in conjunction with the switched reluctance machines design feature, is not increasing on the motor volume basis, two switched reluctance machines have been increased, improve power and the efficient of motor, saved parts, and increased the output operating mode of motor; Three, double plate axial magnetic field permanent magnet motor essence is the combination of two single disc-type axial magnetic field permanent magnet motors, and both share a stator core, has therefore fully improved torque and the bulk density of motor.Four, the stator of double plate magneto left side groove conductor forms the multi-layer annular winding around with right side groove conductor series connection, can form a dual-purpose structure of coil.This structure coil end is very short, can save copper material, reduces costs.Five, form the left stator of switched reluctance machines, right stator winding all by the polyphase windings of concentrating distribution coil to form, have better fault-tolerant operation performance.
Description of drawings
Fig. 1 is motor general assembly schematic diagram: 4, the 9 left and right rotor disks that are the double plate magneto are again the left and right rotor of switched reluctance motor, form two disc-type permanent magnet motors with 6,7 respectively; 4,9 form left and right two switched reluctance motors with 3 and 8 respectively.
Fig. 2 is double plate DC permanent magnet stator iron core schematic diagram.
Fig. 3 is threephase switch magnetic resistance motor rotor schematic diagram (being also double plate permanent magnet machine rotor dish schematic diagram)
Fig. 4 is double plate DC permanent magnet stator coil distribution schematic diagram.
In figure: 1, left end cap assembly, 2, to the pin screw, 3, left SRM stator, 4, left-hand rotation sub-disk, 5, double plate axial magnetic field permanent magnet motor shares winding, and 6, casing, 7, stator core, 8, right SRM stator, 9, right-hand rotation sub-disk, 10, permanent magnet (Nd-Fe-B magnet steel), 11, the right end cap assembly, 12, axle, 13, screw.
Embodiment
Be described in detail below below in conjunction with Figure of description 1,2,3,4 pairs of structures of the present invention:
The present invention is the organic assembling body of a kind of double plate axial magnetic field permanent magnet motor and two switched reluctance machines.comprise left end cap assembly 1, right end cap assembly 11, left SRM stator 3, right SRM stator 8, left-hand rotation sub-disk 4, right-hand rotation sub-disk 9, double plate axial magnetic field permanent magnet motor shares winding 5, casing 6, stator core 7 and permanent magnet 10, as Figure 1-Figure 4, wherein, winding 5 embeds in the teeth groove of stator core 7, stator core 7 is affixed on casing 6 by screw 13, become the field frame assembly of double plate magneto, left-hand rotation sub-disk 4, right-hand rotation sub-disk 9 is by screw and permanent magnet 10 mechanical connections, be assembled on axle 12 with shaft mechanical, be placed in the both sides of field frame assembly, and keep certain running clearance, left end cap assembly 1 is inner by the left SRM stator 3 of clinching process, right end cap assembly 11 is inner by the right SRM stator 8 of clinching process, and by pin screw element 2 is fixed on axle 12 together with housing 6.Its left SRM stator 3 consists of the left-handed opening reluctance motor with left-hand rotation sub-disk 4, right SRM stator 8 consists of right switched reluctance machines with right-hand rotation sub-disk 9, left-hand rotation sub-disk 4 consists of left disc-type permanent magnet motor with permanent magnet 10, winding 5, stator core 7, and right-hand rotation sub-disk 9 consists of right disc-type permanent magnet motor with permanent magnet 10, winding 5, stator core 7.Left-handed opening reluctance motor, right switched reluctance machines, left disc-type permanent magnet motor, right disc-type permanent magnet motor form the motor of double plate axial magnetic field permanent magnet motor of the present invention and switched reluctance machines combination.
Described left end cap assembly 1 is comprised of left end cap and bearing, and is inner by the left SRM stator 3 of clinching process; Described right end cap assembly 11 is comprised of right end cap and bearing, and is inner by the right SRM stator 8 of clinching process, and the shell with left end cap assembly 1, housing 6 composition motors of the present invention plays protection and supporting role.
Described left SRM stator 3 is comprised of coil and iron core, can produce magnetic field after energising, assembling teeth groove rear and left-hand rotation sub-disk 4 excircles forms the regulation air gap, form the left-handed opening reluctance motor with radial magnetic field structure, when giving coil electricity, the SR motor is followed " magnetic resistance minimum principle ", produces magnetic pull, form the electromagnetic torque of magnetic resistance character and rotor is rotated, its rotating speed and torque are by output shaft 12 outputs.
Described right SRM stator 8 is comprised of coil and iron core, can produce magnetic field after energising, assembling teeth groove rear and right-hand rotation sub-disk 9 excircles forms the regulation air gap, form the right switched reluctance machines with radial magnetic field structure, with the left-handed opening reluctance motor, its rotating speed and torque are also by output shaft 12 outputs to its principle with effect;
The number of poles of the sum of series number of phases of described left SRM stator 3, right SRM stator 8 and left-hand rotation sub-disk 4, right-hand rotation sub-disk 9 satisfies the combination of common switched reluctance machines, and is identical with existing switched reluctance machines, is that the those skilled in the art of the art are known.
Described stator core 7, be by silicon-steel sheet coiled around forming, have good magnetic property, iron loss is low.On its both ends of the surface, machining has teeth groove.
It is to adopt the high temperature lacquer envelope curve to arrange around mode with embedding that described double plate axial magnetic field permanent magnet motor shares winding 5, the coil that namely forms winding arrives the right surface groove of stator core 7 from stator core 7 left surface grooves along the stator periphery, get back to again the left surface groove of stator core 7 along interior week of stator core 7, embed in stator core 7 by mechanical force, form the field frame assembly of double plate axial magnetic field permanent magnet motor.
Described permanent magnet 10 is connected by screw and is fixed on left-hand rotation sub-disk 4 and right-hand rotation sub-disk 9, forms left rotor assembly, the sub-assembly of turning right.When passing through certain electric current in winding 5 coils in giving stator iron core 7, produce magnetomotive force, this magnetomotive force and left rotor assembly, the sub-assembly rotor of turning right produce electromagnetic torque because excitation field interacts, by output shaft 12 output mechanical force moments.
Teeth groove on the excircle of described left-hand rotation sub-disk 4, right-hand rotation sub-disk 9 as the draught fan of motor, is used for the cooling of motor simultaneously.
The present invention adopts two kinds of motor combination, namely solved the aeration-cooling problem of double plate axial magnetic field permanent magnet motor, improved the power output of motor, again according to the design feature of switch reluctance machine rotor, in the unaltered situation of motor size, increase by two switched reluctance machines, further improved the power of motor.
Operation principle: this invention motor is controlled double plate axial magnetic field permanent magnet motor and switched reluctance machines respectively by electric machine controller.During to winding 5 coil electricity, produce magnetomotive force by controller, this magnetomotive force and rotor assembly produce electromagnetic torque because excitation field interacts, and pass through output shaft 12 and export mechanical force moments.Left SRM stator 3, the right SRM stator 8 of two switched reluctance motors can adopt the serial or parallel connection mode, pass through controller, control simultaneously to left SRM stator 3, right SRM stator 8 by certain electric current, according to SR motor " magnetic resistance minimum principle ", produce magnetic pull, form the electromagnetic torque of magnetic resistance character and rotor is rotated, its rotating speed and torque are by output shaft 12 outputs.When giving left SRM stator 3 or right SRM stator 8 wherein during an energising, be equivalent to only have a switched reluctance machines operation, when giving left SRM stator 3, right SRM stator 8, winding 5 coil electricity simultaneously, namely four motors are worked simultaneously, have the low speed high torque fan-out capability, can satisfy starting and the low speed climbing requirement of electric automobile; When only having double plate axial magnetic field permanent magnet machine operation, motor is in the high speed running status, can satisfy the high speed of electric automobile and travel; Only have the switched reluctance machines operation, motor is in another high-speed cruising state, can satisfy the electric automobile difference and run at high speed.Therefore the independence of this motor or powered operation simultaneously make it have low speed high torque and high-speed cruising ability.And, control by this driving, make motor be in all the time the optimum efficiency running status, thereby improved the comprehensive operation efficiency of motor, effectively improve the mileages of continuation of electric automobile.
The stator winding of two switched reluctance machines is all by the polyphase windings of concentrating distribution coil to form.Certain phase winding as a motor has fault not work, and can cut off this whole motor winding, and another switched reluctance machines of only powering, namely only has a switched reluctance machines job, this moment, motor still had good runnability, and therefore, this kind motor has better fault-tolerant operation performance.
The scope of application: the present invention is applied on the electric automobile industry.
Claims (3)
1. a double plate axial magnetic field permanent magnet motor and the composition motor that two switched reluctance machines are housed, become double plate axial magnetic field permanent magnet motor by left rotor, intermediate stator and right-hand rotation subgroup, form two switched reluctance machines by the left and right SRM stator on left and right rotor and end cap again.It is characterized in that double plate axial magnetic field permanent magnet motor shares a stator, disc-type permanent magnet motor and switched reluctance machines share again a rotor disk, teeth groove on this rotor disk excircle is namely the disc-type permanent magnet motor ventilation slot, plays the cooling effect, is again the switch reluctance machine rotor tooth.
2. double plate axial magnetic field permanent magnet motor described according to claims 1, it is characterized in that, left and right rotor magnet disk, share intermediate stator, winding in intermediate stator adopts embedding to arrange around mode, the coil that namely forms winding arrives the right surface groove of stator disc from stator disc left surface groove along the stator periphery, then gets back to the left surface groove of stator disc along week in stator disc.
Double plate axial magnetic field permanent magnet motor described according to claims 1 and switched reluctance machines the combination high efficiency motor, it is characterized in that having teeth groove on disc-type permanent magnet motor rotor dish excircle, this structure is namely the disc-type permanent magnet motor ventilation slot, plays the cooling effect; Become again the switch reluctance machine rotor tooth, form switched reluctance machines with the SRM stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102846951A CN103178666A (en) | 2012-08-13 | 2012-08-13 | Combined motor with switched reluctance motors and double disk type permanent magnet motors with axial magnetic fields |
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| CN2012102846951A CN103178666A (en) | 2012-08-13 | 2012-08-13 | Combined motor with switched reluctance motors and double disk type permanent magnet motors with axial magnetic fields |
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| CN103178666A true CN103178666A (en) | 2013-06-26 |
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| CN2012102846951A Pending CN103178666A (en) | 2012-08-13 | 2012-08-13 | Combined motor with switched reluctance motors and double disk type permanent magnet motors with axial magnetic fields |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610288A (en) * | 2016-01-26 | 2016-05-25 | 江苏大学 | Permanent-magnet torque and reluctance torque separated motor and optimal efficiency control method |
| CN106515406A (en) * | 2016-11-18 | 2017-03-22 | 精进电动科技股份有限公司 | Coaxial multi-motor driving system and vehicle comprising same |
| JP6253868B1 (en) * | 2017-04-03 | 2017-12-27 | 三菱電機株式会社 | AC generator for vehicles |
| CN109217597A (en) * | 2018-10-22 | 2019-01-15 | 沈阳工业大学 | Compound rectifier excitation amorphous alloy axial-flux electric machine |
| CN109245401A (en) * | 2018-10-19 | 2019-01-18 | 核心驱动科技（金华）有限公司 | Disc type electric machine |
| RU205579U1 (en) * | 2019-12-24 | 2021-07-21 | Вячеслав Авазович Чукреев | ROTOR OF VAN INDUCTION MOTOR |
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| JP4457785B2 (en) * | 2004-07-09 | 2010-04-28 | 日産自動車株式会社 | Stator structure of disk type rotating electrical machine |
| CN102487234A (en) * | 2010-12-03 | 2012-06-06 | 台达电子工业股份有限公司 | Rotary motor and rotor thereof |
| CN102570656A (en) * | 2012-01-04 | 2012-07-11 | 东风汽车零部件(集团)有限公司 | Electric-excitation brushless starter generator (motor) |
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2012
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Patent Citations (5)
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| JP4457785B2 (en) * | 2004-07-09 | 2010-04-28 | 日産自動車株式会社 | Stator structure of disk type rotating electrical machine |
| CN201041974Y (en) * | 2007-02-07 | 2008-03-26 | 熊巨藩 | A dual protrusion pole axial magnetic field permanent magnetic electromotor |
| CN201146413Y (en) * | 2008-01-11 | 2008-11-05 | 张世清 | Reluctance motor for double fixed rotor switch |
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| CN102570656A (en) * | 2012-01-04 | 2012-07-11 | 东风汽车零部件(集团)有限公司 | Electric-excitation brushless starter generator (motor) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610288A (en) * | 2016-01-26 | 2016-05-25 | 江苏大学 | Permanent-magnet torque and reluctance torque separated motor and optimal efficiency control method |
| CN105610288B (en) * | 2016-01-26 | 2018-02-27 | 江苏大学 | A kind of permanent-magnet torque and reluctance torque divergence type motor and optimum efficiency control method |
| CN106515406A (en) * | 2016-11-18 | 2017-03-22 | 精进电动科技股份有限公司 | Coaxial multi-motor driving system and vehicle comprising same |
| JP6253868B1 (en) * | 2017-04-03 | 2017-12-27 | 三菱電機株式会社 | AC generator for vehicles |
| WO2018185799A1 (en) * | 2017-04-03 | 2018-10-11 | 三菱電機株式会社 | Vehicle alternating current generator |
| CN109245401A (en) * | 2018-10-19 | 2019-01-18 | 核心驱动科技（金华）有限公司 | Disc type electric machine |
| CN109217597A (en) * | 2018-10-22 | 2019-01-15 | 沈阳工业大学 | Compound rectifier excitation amorphous alloy axial-flux electric machine |
| RU205579U1 (en) * | 2019-12-24 | 2021-07-21 | Вячеслав Авазович Чукреев | ROTOR OF VAN INDUCTION MOTOR |
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Application publication date: 20130626 |