CN104767332A - Hollow radial-magnetic-field permanent magnet opposite-rotating double-rotor compensation pulse electric generator - Google Patents
Hollow radial-magnetic-field permanent magnet opposite-rotating double-rotor compensation pulse electric generator Download PDFInfo
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- CN104767332A CN104767332A CN201510187550.3A CN201510187550A CN104767332A CN 104767332 A CN104767332 A CN 104767332A CN 201510187550 A CN201510187550 A CN 201510187550A CN 104767332 A CN104767332 A CN 104767332A
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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
- H02K16/02—Machines with one stator and two or more rotors
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Abstract
The invention discloses a hollow radial-magnetic-field permanent magnet opposite-rotating double-rotor compensation pulse electric generator, and belongs to the technical field of pulse electric generators. The hollow radial-magnetic-field permanent magnet opposite-rotating double-rotor compensation pulse electric generator aims at solving the problems that two electric generators are arranged in parallel at present and synchronously and oppositely rotate to counteract electromagnetic torque impacting generated during discharging of the pulse electric generators, and the sizes of the electric generators are enlarged accordingly. The hollow radial-magnetic-field permanent magnet opposite-rotating double-rotor compensation pulse electric generator comprises an outer rotor, an inner rotor and a stator. An inner rotor shaft and an outer rotor shaft are coaxial, the outer rotor, the stator and the inner rotor are sequentially and coaxially arranged from outside to inside, an outer air gap is formed between the outer rotor and the stator, and an inner air gap is formed between the stator and the inner rotor. An inner rotor yoke is fixed to the inner rotor shaft, an inner rotor permanent magnet is arranged on the outer circumference surface of the inner rotor yoke, and an inner rotor compensation cylinder and an inner rotor bandage are sequentially arranged on the outer circumference surface of the inner rotor permanent magnet; the magnetic field formed by the inner rotor permanent magnet and the magnetic field formed by the outer rotor permanent magnet are intersected with one side of a stator armature winding. The hollow radial-magnetic-field permanent magnet opposite-rotating double-rotor compensation pulse electric generator is a compensation pulse electric generator.
Description
Technical field
The present invention relates to hollow drive to magnetic field permanent magnet to turning birotor compensating pulse electric generator, belonging to impulse generator technical field.
Background technology
High power pulsed source can provide By Impulsive Current in short-term, is the vitals of electromagnetic emission.Based on the impulse generator of inertia energy storage, be a kind of special synchronous generator, utilize compensation principle and compressed magnetic flux principle, significantly reduce the internal inductance of armature winding, thus obtain the high pulse current of amplitude, there is very strong application potential.
Pulse is provided motor excitation mode and is mainly contained two kinds: electric excitation and permanent magnet excitation.Because electric excitation needs brush, electric machine structure is complicated, and the wearing and tearing of brush and ablation also can reduce the reliability of motor, and increase its maintenance cost, and therefore the research of permanent magnet excitation impulse generator increases gradually in recent years.
Impulse generator interdischarge interval, rotating speed declines very fast, and produce high electromagnetic torque and impact, magnitude reaches MNm, can produce extreme shock to optimal in structure.General employing two motors are parallel now places, and synchronous backward rotates, and offsets discharge impact torque.But two motors increase system bulk, two current output terminal mouths, switch control device also can double, and also can bring the problem that current parallel is synchronous simultaneously.
Summary of the invention
The present invention seeks to adopt the parallel placement of two motors at present to solve, the electromagnetic torque produced during making its synchronous backward rotate cancellation pulses generator discharge impacts, causing the problem that motor volume increases, providing a kind of hollow drive to magnetic field permanent magnet to turning birotor compensating pulse electric generator.
Hollow drive of the present invention to magnetic field permanent magnet to turning birotor compensating pulse electric generator, it comprises external rotor, internal rotor, stator, inner rotor shaft, external rotor left end cap, stator left end cap, casing left end cap, casing, casing right end cap, external rotor right end cap, stator right end cap and outer rotor shaft
External rotor comprises external rotor yoke, outer rotor permanent magnet, external rotor compensating cylinder and external rotor bandage,
Internal rotor comprises internal rotor yoke, internal rotor permanent-magnetic body, internal rotor compensating cylinder and internal rotor bandage, and stator comprises stator electricity
Pivot winding, stator connecting piece and stator yoke;
Coaxially, external rotor, stator and internal rotor ecto-entad are coaxially arranged successively for inner rotor shaft and outer rotor shaft, form outer air gap between external rotor and stator, air gap in being formed between stator and internal rotor;
Internal rotor yoke is fixed on inner rotor shaft, the external peripheral surface of internal rotor yoke is arranged internal rotor permanent-magnetic body, the external peripheral surface of internal rotor permanent-magnetic body sets gradually internal rotor compensating cylinder and internal rotor bandage;
Stator yoke is fixed between stator left end cap and stator right end cap by stator connecting piece, and stator right end cap is fixedly connected with casing right end cap, and stator left end cap is all connected with inner rotor shaft by bearing with the medial surface of stator right end cap; Stator yoke arranges stator armature winding on the surface;
External rotor yoke is fixed between external rotor left end cap and external rotor right end cap, the medial surface of external rotor right end cap is fixed by the lateral surface of bearing and stator right end cap, external rotor left end cap and outer rotor shaft are fixed together, and be connected with casing left end cap and stator left end cap by bearing, casing is fixed between casing left end cap and casing right end cap; The inner circumferential surface of external rotor yoke arranges outer rotor permanent magnet, the inner circumferential surface of outer rotor permanent magnet sets gradually external rotor compensating cylinder and external rotor bandage;
The magnetic field that internal rotor permanent-magnetic body is formed is by the inner side winding intersecting chain of internal rotor compensating cylinder, internal rotor bandage and interior air gap and stator armature winding;
The magnetic field that outer rotor permanent magnet is formed is by the outside winding intersecting chain of external rotor compensating cylinder, external rotor bandage and outer air gap and stator armature winding.
Internal rotor permanent-magnetic body and outer rotor permanent magnet are Halbach permanent magnet array structure.
The air gap flux density that described internal rotor permanent-magnetic body and outer rotor permanent magnet produce is radial.
Internal rotor yoke, stator yoke and external rotor yoke are entwined by glass-epoxy.
Stator armature winding is slotless Circular Winding structure, totally two phase windings, and each phase winding comprises four coils.
Internal rotor bandage and external rotor bandage are entwined by carbon fibre resin.
Internal rotor compensating cylinder and external rotor compensating cylinder are annular aluminum barrel.
Inner rotor shaft is solid shafting, and outer rotor shaft is hollow shaft, and inner rotor shaft and outer rotor shaft are single-ended concentric type cross-compound arrangement.
Two phase windings of stator armature winding are A phase winding and B phase winding, A phase winding is made up of A1, A2, A3 and A4 tetra-pitch of the laps, B phase winding is made up of B1, B2, B3 and B4 tetra-pitch of the laps, A1 and B1 pitch of the laps, A2 and B2 pitch of the laps, A3 and B3 pitch of the laps, A4 and B4 pitch of the laps one_to_one corresponding form four coil groups, four coil groups are evenly distributed on the outboard sidewalls of stator yoke on the surface along the circumferencial direction of stator yoke, and four coil groups canoe vertically on the sidewall of stator yoke is consistent;
For A1 and B1 pitch of the laps, A1 and B1 pitch of the laps lays respectively in the coil side on stator yoke outboard sidewalls, the coil side of B1 pitch of the laps is placed in the middle, the coil side apportion both sides of A1 pitch of the laps, the coil side of B1 pitch of the laps head and the tail connect by port segmentation that B1 pitch of the laps is positioned at stator yoke port side in turn, and A1 pitch of the laps is positioned at the coil side interconnection of port segmentation by A1 pitch of the laps of stator yoke port side.
Advantage of the present invention: external rotor of the present invention, stator and internal rotor are hollow-core construction, the machinery input of inner and outer rotors adopts single-ended concentric type cross-compound arrangement.In use, make motor inner and outer rotors to turning, during electric discharge, electromagnetic torque cancels each other, the torque shock ends to optimal in structure can be reduced, and adopt permanent magnet excitation not establish brush, electric system volume is reduced, both reduce the dimension and weight of motor, turn improve operational reliability; Simultaneously the present invention is single current output terminal mouth, with two motors in existing mode walk abreast placement two current output terminal mouths mode compared with, foreign current controls only to need a set of control device, and need not consider the problem of electric current circulation, electric machine control system is simpler.
Two cover electric machine structures are realized by a double-rotor machine by the present invention, share a set of armature winding, the fixing of stator yoke is realized by stator connecting piece, armature winding is shared for inner and outer rotors magnetic field, the defect that the back-emf that armature winding produces can cancel each other, have employed special armature winding connected mode and avoids.
Accompanying drawing explanation
Fig. 1 be hollow drive of the present invention to magnetic field permanent magnet to the structural representation turning birotor compensating pulse electric generator;
Fig. 2 is that the circumferencial direction of stator armature winding distribution in stator yoke launches schematic diagram.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1, hollow drive described in present embodiment to magnetic field permanent magnet to turning birotor compensating pulse electric generator, it comprises external rotor, internal rotor, stator, inner rotor shaft 5, external rotor left end cap 6, stator left end cap 14, casing left end cap 15, casing 16, casing right end cap 17, external rotor right end cap 18, stator right end cap 19 and outer rotor shaft 20
External rotor comprises external rotor yoke 7, outer rotor permanent magnet 8, external rotor compensating cylinder 9 and external rotor bandage 10,
Internal rotor comprises internal rotor yoke 1, internal rotor permanent-magnetic body 2, internal rotor compensating cylinder 3 and internal rotor bandage 4, stator pack
Draw together stator armature winding 11, stator connecting piece 12 and stator yoke 13;
Coaxially, external rotor, stator and internal rotor ecto-entad are coaxially arranged successively for inner rotor shaft 5 and outer rotor shaft 20, form outer air gap between external rotor and stator, air gap in being formed between stator and internal rotor;
Internal rotor yoke 1 is fixed on inner rotor shaft 5, the external peripheral surface of internal rotor yoke 1 is arranged internal rotor permanent-magnetic body 2, the external peripheral surface of internal rotor permanent-magnetic body 2 sets gradually internal rotor compensating cylinder 3 and internal rotor bandage 4;
Stator yoke 13 is fixed between stator left end cap 14 and stator right end cap 19 by stator connecting piece 12, and stator right end cap 19 is fixedly connected with casing right end cap 17, and stator left end cap 14 is all connected with inner rotor shaft 5 by bearing with the medial surface of stator right end cap 19; Stator yoke 13 arranges stator armature winding 11 on the surface;
External rotor yoke 7 is fixed between external rotor left end cap 6 and external rotor right end cap 18, the medial surface of external rotor right end cap 18 is fixed by the lateral surface of bearing and stator right end cap 19, external rotor left end cap 6 and outer rotor shaft 20 are fixed together, and be connected with casing left end cap 15 and stator left end cap 14 by bearing, casing 16 is fixed between casing left end cap 15 and casing right end cap 17; The inner circumferential surface of external rotor yoke 7 is arranged outer rotor permanent magnet 8, the inner circumferential surface of outer rotor permanent magnet 8 sets gradually external rotor compensating cylinder 9 and external rotor bandage 10;
The magnetic field that internal rotor permanent-magnetic body 2 is formed is by the inner side winding intersecting chain of internal rotor compensating cylinder 3, internal rotor bandage 4 and interior air gap and stator armature winding 11;
The magnetic field that outer rotor permanent magnet 8 is formed is by the outside winding intersecting chain of external rotor compensating cylinder 9, external rotor bandage 10 and outer air gap and stator armature winding 11.
External rotor in present embodiment, stator and internal rotor are hollow-core construction, in use, make the direction of rotation of inner and outer rotors contrary.Stator right end cap 19 is fixed on casing right end cap 17 by screw.
Embodiment two: present embodiment is described further execution mode one, internal rotor permanent-magnetic body 2 and outer rotor permanent magnet 8 are Halbach permanent magnet array structure.
Embodiment three: present embodiment is described further execution mode one or two, the air gap flux density that described internal rotor permanent-magnetic body 2 and outer rotor permanent magnet 8 produce is radial.
Embodiment four: present embodiment is described further execution mode one, two or three, internal rotor yoke 1, stator yoke 13 and external rotor yoke 7 are entwined by glass-epoxy.
Stator yoke 13 is entwined by glass-epoxy, can avoid stator yoke magnetic saturation.
Embodiment five: present embodiment is described further execution mode one, two, three or four, stator armature winding 11 is slotless Circular Winding structure, totally two phase windings, and each phase winding comprises four coils.
In present embodiment, stator armature winding 11 Surface Mount is on hollow stator yoke surfaces externally and internally.
Embodiment six: present embodiment is described further execution mode one, two, three, four or five, internal rotor bandage 4 and external rotor bandage 10 are entwined by carbon fibre resin.
Internal rotor bandage 4 and external rotor bandage 10 are entwined by carbon fibre resin, are conducive to protection rotor structure and do not come off when High Rotation Speed.
Embodiment seven: present embodiment is described further execution mode one, two, three, four, five or six, internal rotor compensating cylinder 3 and external rotor compensating cylinder 9 are annular aluminum barrel.
Internal rotor compensating cylinder 3 and external rotor compensating cylinder 9 adopt annular aluminum barrel, can play the effect of discharging compensation.
Embodiment eight: present embodiment is described further execution mode one, two, three, four, five, six or seven, inner rotor shaft 5 is solid shafting, and outer rotor shaft 20 is hollow shaft, and inner rotor shaft 5 and outer rotor shaft 20 are single-ended concentric type cross-compound arrangement.
Embodiment nine: present embodiment is described below in conjunction with Fig. 1 and Fig. 2, present embodiment is described further execution mode five, two phase windings of stator armature winding 11 are A phase winding and B phase winding, A phase winding is by A1, A2, A3 and A4 tetra-pitch of the laps compositions, B phase winding is by B1, B2, B3 and B4 tetra-pitch of the laps compositions, A1 and B1 pitch of the laps, A2 and B2 pitch of the laps, A3 and B3 pitch of the laps, A4 and B4 pitch of the laps one_to_one corresponding forms four coil groups, four coil groups are evenly distributed on the outboard sidewalls of stator yoke 13 on the surface along the circumferencial direction of stator yoke 13, four coil groups canoe vertically on the sidewall of stator yoke 13 is consistent,
For A1 and B1 pitch of the laps, A1 and B1 pitch of the laps lays respectively in the coil side on stator yoke 13 outboard sidewalls, the coil side of B1 pitch of the laps is placed in the middle, the coil side apportion both sides of A1 pitch of the laps, the coil side of B1 pitch of the laps head and the tail connect by port segmentation that B1 pitch of the laps is positioned at stator yoke 13 port side in turn, and A1 pitch of the laps is positioned at the coil side interconnection of port segmentation by A1 pitch of the laps of stator yoke 13 port side.
In present embodiment, A phase winding and B phase winding, according to the demand used, can combine with different series-parallel system respectively.Stator armature winding 11 is in the part of stator yoke 13 lateral wall as outer coil, is in the part of stator yoke 13 madial wall as inner coil, outer coil and external rotor magnetic field interlinkage, inner coil and internal rotor magnetic field interlinkage.Stator armature winding 11 end is that annular connects, and B phase winding ectonexine coil side connects successively, the interconnection of A phase winding ectonexine coil side, and winding electromotive force can be avoided like this to cancel each other on the contrary mutually due to phase place.After end has connected, every phase winding has four coils respectively, with different connection in series-parallel form combination, can mate dissimilar load.
Claims (9)
1. a hollow drive to magnetic field permanent magnet to turning birotor compensating pulse electric generator, it is characterized in that, it comprises external rotor, internal rotor, stator, inner rotor shaft (5), external rotor left end cap (6), stator left end cap (14), casing left end cap (15), casing (16), casing right end cap (17), external rotor right end cap (18), stator right end cap (19) and outer rotor shaft (20)
External rotor comprises external rotor yoke (7), outer rotor permanent magnet (8), external rotor compensating cylinder (9) and external rotor bandage (10),
Internal rotor comprises internal rotor yoke (1), internal rotor permanent-magnetic body (2), internal rotor compensating cylinder (3) and internal rotor bandage (4),
Stator comprises stator armature winding (11), stator connecting piece (12) and stator yoke (13);
Coaxially, external rotor, stator and internal rotor ecto-entad are coaxially arranged successively for inner rotor shaft (5) and outer rotor shaft (20), form outer air gap between external rotor and stator, air gap in being formed between stator and internal rotor;
Internal rotor yoke (1) is fixed on inner rotor shaft (5), the external peripheral surface of internal rotor yoke (1) is arranged internal rotor permanent-magnetic body (2), the external peripheral surface of internal rotor permanent-magnetic body (2) sets gradually internal rotor compensating cylinder (3) and internal rotor bandage (4);
Stator yoke (13) is fixed between stator left end cap (14) and stator right end cap (19) by stator connecting piece (12), stator right end cap (19) is fixedly connected with casing right end cap (17), and stator left end cap (14) is all connected with inner rotor shaft (5) by bearing with the medial surface of stator right end cap (19); Stator yoke (13) arranges stator armature winding (11) on the surface;
External rotor yoke (7) is fixed between external rotor left end cap (6) and external rotor right end cap (18), the medial surface of external rotor right end cap (18) is fixed by the lateral surface of bearing and stator right end cap (19), external rotor left end cap (6) and outer rotor shaft (20) are fixed together, and be connected with casing left end cap (15) and stator left end cap (14) by bearing, casing (16) is fixed between casing left end cap (15) and casing right end cap (17); The inner circumferential surface of external rotor yoke (7) is arranged outer rotor permanent magnet (8), the inner circumferential surface of outer rotor permanent magnet (8) sets gradually external rotor compensating cylinder (9) and external rotor bandage (10);
The magnetic field that internal rotor permanent-magnetic body (2) is formed is by the inner side winding intersecting chain of internal rotor compensating cylinder (3), internal rotor bandage (4) and interior air gap and stator armature winding (11);
The magnetic field that outer rotor permanent magnet (8) is formed is by the outside winding intersecting chain of external rotor compensating cylinder (9), external rotor bandage (10) and outer air gap and stator armature winding (11).
2. hollow drive according to claim 1 is to magnetic field permanent magnet to turning birotor compensating pulse electric generator, it is characterized in that, internal rotor permanent-magnetic body (2) and outer rotor permanent magnet (8) are Halbach permanent magnet array structure.
3. hollow drive according to claim 2 is to magnetic field permanent magnet to turning birotor compensating pulse electric generator, it is characterized in that, the air gap flux density that described internal rotor permanent-magnetic body (2) and outer rotor permanent magnet (8) produce is for radial.
4. the hollow drive according to claim 1,2 or 3 to magnetic field permanent magnet to turning birotor compensating pulse electric generator, it is characterized in that, internal rotor yoke (1), stator yoke (13) and external rotor yoke (7) are entwined by glass-epoxy.
5. hollow drive according to claim 4 is to magnetic field permanent magnet to turning birotor compensating pulse electric generator, it is characterized in that, stator armature winding (11) comprises four coils for slotless Circular Winding structure, totally two phase windings, each phase winding.
6. the hollow drive according to claim 1,2,3 or 5, is characterized in that to magnetic field permanent magnet turning birotor compensating pulse electric generator, and internal rotor bandage (4) and external rotor bandage (10) are entwined by carbon fibre resin.
7. the hollow drive according to claim 1,2,3 or 5, is characterized in that to magnetic field permanent magnet turning birotor compensating pulse electric generator, and internal rotor compensating cylinder (3) and external rotor compensating cylinder (9) are annular aluminum barrel.
8. the hollow drive according to claim 1,2,3 or 5 to magnetic field permanent magnet to turning birotor compensating pulse electric generator, it is characterized in that, inner rotor shaft (5) is solid shafting, outer rotor shaft (20) is hollow shaft, and inner rotor shaft (5) and outer rotor shaft (20) are single-ended concentric type cross-compound arrangement.
9. hollow drive according to claim 5 to magnetic field permanent magnet to turning birotor compensating pulse electric generator, it is characterized in that, two phase windings of stator armature winding (11) are A phase winding and B phase winding, A phase winding is by A1, A2, A3 and A4 tetra-pitch of the laps compositions, B phase winding is by B1, B2, B3 and B4 tetra-pitch of the laps compositions, A1 and B1 pitch of the laps, A2 and B2 pitch of the laps, A3 and B3 pitch of the laps, A4 and B4 pitch of the laps one_to_one corresponding forms four coil groups, four coil groups are evenly distributed on the outboard sidewalls of stator yoke (13) on the surface along the circumferencial direction of stator yoke (13), four coil groups canoe vertically on the sidewall of stator yoke (13) is consistent,
For A1 and B1 pitch of the laps, A1 and B1 pitch of the laps lays respectively in the coil side on stator yoke (13) outboard sidewalls, the coil side of B1 pitch of the laps is placed in the middle, the coil side apportion both sides of A1 pitch of the laps, the coil side of B1 pitch of the laps head and the tail connect by port segmentation that B1 pitch of the laps is positioned at stator yoke (13) port side in turn, and A1 pitch of the laps is positioned at the coil side interconnection of port segmentation by A1 pitch of the laps of stator yoke (13) port side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510187550.3A CN104767332B (en) | 2015-04-20 | 2015-04-20 | Hollow radial-magnetic-field permanent magnet opposite-rotating double-rotor compensation pulse electric generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510187550.3A CN104767332B (en) | 2015-04-20 | 2015-04-20 | Hollow radial-magnetic-field permanent magnet opposite-rotating double-rotor compensation pulse electric generator |
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| CN104767332A true CN104767332A (en) | 2015-07-08 |
| CN104767332B CN104767332B (en) | 2017-04-12 |
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| CN201510187550.3A Active CN104767332B (en) | 2015-04-20 | 2015-04-20 | Hollow radial-magnetic-field permanent magnet opposite-rotating double-rotor compensation pulse electric generator |
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Cited By (5)
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| CN105262262A (en) * | 2015-10-28 | 2016-01-20 | 李雨洁 | Composite motor and generator |
| CN110299815A (en) * | 2019-07-01 | 2019-10-01 | 东南大学 | A kind of coaxial birotor speed change electromagnetic actuator |
| CN112046669A (en) * | 2019-06-05 | 2020-12-08 | 邓晓光 | Balance driving system for electric bicycle |
| CN112838728A (en) * | 2020-12-30 | 2021-05-25 | 顺丰科技有限公司 | Birotor permanent magnet synchronous motor and working method thereof |
| CN113890298A (en) * | 2021-09-22 | 2022-01-04 | 苏州洛塔电机有限公司 | Double-torque brushless motor |
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| CN113890298A (en) * | 2021-09-22 | 2022-01-04 | 苏州洛塔电机有限公司 | Double-torque brushless motor |
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