CN105790467A - Hybrid excited disc-type motor - Google Patents

Hybrid excited disc-type motor Download PDF

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Publication number
CN105790467A
CN105790467A CN201610256121.1A CN201610256121A CN105790467A CN 105790467 A CN105790467 A CN 105790467A CN 201610256121 A CN201610256121 A CN 201610256121A CN 105790467 A CN105790467 A CN 105790467A
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CN
China
Prior art keywords
stator
permanent magnet
rotor
iron core
core
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Granted
Application number
CN201610256121.1A
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Chinese (zh)
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CN105790467B (en
Inventor
史立伟
肖东
郭盈志
巩合聪
马超
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Shandong University of Technology
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Shandong University of Technology
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Publication of CN105790467A publication Critical patent/CN105790467A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/24Rotor cores with salient poles ; Variable reluctance rotors
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/14Stator cores with salient poles
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/16Stator cores with slots for windings
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/17Stator cores with permanent magnets

Abstract

The invention discloses a hybrid excited disc-type motor, which is composed of a shaft, a bearing, a casing, excitation windings, a stator iron core, permanent magnets, stator poles, armature windings, a rotor iron core and a front end cover, wherein the stator iron core is fixed on the motor casing; one face, opposite to the rotor iron core, of the stator iron core is sequentially fixed with the permanent magnets and the stator poles; each annular sector-shaped permanent magnet is fixed with three sector-shaped stator poles along an arc direction; the direction, opposite to the stator iron core, of the rotor iron core is provided with sector-shaped convex rotor poles; the stator iron core between each two permanent magnets is provided with a groove; and the excitation winding is embedded inside the groove and is wound around the stator iron core corresponding to one permanent magnet. The hybrid excited disc-type motor has the advantages that the disc-type motor specific power is high; the excitation windings and the permanent magnets are all located on the stator, the rotor only has a convex pole iron core structure, and thus, the rotor has a simple structure and can rotate reliably and at a high speed; and the excitation windings can enhance a permanent magnetic field and can also weaken the permanent magnetic field, and a low-speed large-torque working condition and a high-speed flux-weakening working condition can be improved.

Description

Mixing exciter panel type motor
Technical field
The present invention relates to a kind of mixing exciter panel type motor, belong to car electrics technical field.
Background technology
In recent years, along with the reduction of the raising of permanent magnet material resistance to elevated temperatures and price, magneto is more widely applied in national defence, industrial and agricultural production and daily life etc., and forward high-power, high performance and microminiaturized direction are developed.But existing magneto is fixed due to permanent magnet magnetic kinetic potential, motor main flux is non-adjustable, cause output-constant operation narrow range, speed adjustable range is wide in range not, and most of permanent magnet of permanent magnet motor is positioned on rotor, rotates with rotor during operation, permanent magnet need to adopt special procedure to fix, manufacturing cost is high, and when especially motor speed is higher, permanent magnet is fixing more difficult.
Hybrid excitation permanent magnet motor exists permanent-magnet magnetic kinetic potential and electricity two kinds of magnetomotive force sources of excitation magnetic kinetic potential simultaneously, the adjustment of magneto air-gap field can be realized by regulating electricity excitation magnetic kinetic potential size and Orientation.Therefore, mixed excitation electric machine is adopted can effectively to solve the problem that magneto produces.Existing mixed excitation electric machine is varied, and structure function differs widely.Seeking a kind of body construction simple, cost is low, has adjustable magnetic function and the low hybrid excitation permanent magnet motor of power circuit cost most important.
In close patent, application number is the application for a patent for invention of 201210572679.2: Serial-magnetic-circhybrid-excitation hybrid-excitation permanent magnet motor, in this application, its stator winding is distributed in the groove along the circumferential direction offered in stator core, being provided with permanent magnet and Exciting Windings for Transverse Differential Protection in rotor core, the magnetomotive force of permanent magnet and Exciting Windings for Transverse Differential Protection foundation is connected on magnetic circuit.This application hybrid excitation permanent magnet motor can be conveniently adjusted the air-gap field of motor by regulating the electric current of Exciting Windings for Transverse Differential Protection.
Mixed excitation electric machine kind is a lot, the application number is mainly had to be in another kind of mixed excitation electric machine application: the application for a patent for invention of 201510694254.2: a kind of ring-shaped yoke portion double winding composite excitation permanent magnet motor, the stator slot of stator includes armature slot and excitation groove in this application, armature slot and the arrangement of excitation groove circumferentially alternate intervals, armature winding indirect current, the DC current that the logical direction of Exciting Windings for Transverse Differential Protection is constant.The magnetic field interaction produced by armature supply magnetic field, exciting current magnetic field and permanent magnet in this application makes the magnetic flux on stator tooth change, and utilizes magnetic resistance change rate between stator and rotor to produce torque.
The technology of the present invention is all different from such scheme.Present invention stator core in the form of annular discs is fixed on motor housing, the fixing permanent magnet in fan annular on it.Exciting Windings for Transverse Differential Protection and permanent magnet are all positioned on stator, and rotor is only salient pole core construction.Stator core in the middle of every two panels permanent magnet has a groove, and Exciting Windings for Transverse Differential Protection is embedded in described groove and around the stator core coiling corresponding to a piece of permanent magnet.
Current applicant not yet retrieves the relevant report about using above-mentioned technology.
The technology of the present invention not only has the advantage that disc type electric machine specific power is high, and Exciting Windings for Transverse Differential Protection and permanent magnet are all positioned on stator, and rotor is only salient pole core construction, and therefore rotor structure is simple, can reliably rotate at a high speed;Exciting Windings for Transverse Differential Protection not only can strengthen permanent magnetic field but also can weaken permanent magnetic field, is conducive to improving low speed high torque operating mode and the weak magnetic operating mode of high speed.
Summary of the invention
In order to invent a kind of mixing exciter panel type motor, it is achieved the Integrated design of mixed excitation electric machine and disc type electric machine, and realizing the convenient function regulated with motor reliable operation of air-gap field, the present invention adopts the following technical scheme that
Mixing exciter panel type motor, it is characterised in that:
It is made up of axle (1), bearing (2), shell (3), Exciting Windings for Transverse Differential Protection (4), stator core (5), permanent magnet (7), stator poles (8), armature winding (9), rotor core (10) and drive end bearing bracket (11);
Rotor core (10) in the form of annular discs is fixed on the centre of axle (1), what porose stator core (5) in the form of annular discs and middle was parallel with rotor core (10) is enclosed within axle (1), there is the rotor pole that fan annular is protruded in rotor core (10) direction relative with stator core (5), the number of poles of described rotor pole is 4N, N is natural number;
Stator core (5) is fixed on motor housing (3), and stator core (5) one side relative with rotor core (10) is fixed with permanent magnet (7) and stator poles (8) successively;
All being fixed with 3 stator poles (8) annular in fan along circular arc direction in permanent magnet (7) the 2N sheet altogether and every of fanning annular, 6N stator poles (8) is along the circumferential direction uniform;
The magnetizing direction of permanent magnet (7) axial charging and adjacent permanent magnet (7) is contrary;
Stator core (5) in the middle of every two panels permanent magnet (7) has a groove, Exciting Windings for Transverse Differential Protection (4) is embedded in described groove and around stator core (5) coiling corresponding to a piece of permanent magnet (7), and Exciting Windings for Transverse Differential Protection (4) is parallel to axle (1);Adjacent Exciting Windings for Transverse Differential Protection around on the contrary;
Being wound with an armature winding (9) in each stator poles (8), three armature winding (9) of each permanent magnet (7) correspondence are around to identical;The armature winding (9) of adjacent permanent magnet (7) correspondence is around on the contrary;Armature winding (9) can be divided into three-phase according to the difference of phase place.
Mixing exciter panel type motor as above, if the ratio of stator poles (8) polar arc and the pole span of this polar arc position is stator pole embrace, if the ratio of rotor pole polar arc and the pole span of this polar arc position is rotor pole arc coefficient, it is characterised in that:
Stator pole embrace is 0.5, and rotor pole arc coefficient is 0.5 or 0.333.
Beneficial effects of the present invention is as follows:
(1) propose mixing exciter panel type motor, not only there is the advantage that disc type electric machine specific power is high, and there is mixed excitation electric machine and be easy to regulate the speciality of air-gap field;
(2) have employed permanent-magnet disk structure, rotor contact surface is big, and the acting surface that therefore electromechanical energy converts is big, and electromotor specific power is high;
(3) Exciting Windings for Transverse Differential Protection and permanent magnet are all positioned on stator, and rotor is only salient pole core construction, and therefore rotor structure is simple, can reliably rotate at a high speed.
Accompanying drawing explanation
Fig. 1 is the sectional side elevation of mixing exciter panel type motor of the present invention.Wherein: 1, axle, 2, bearing, 3, shell, 4, Exciting Windings for Transverse Differential Protection, 5, stator core, 6, the fixing bolt of stator, 7, permanent magnet, 8, stator poles, 9, armature winding, 10, rotor core, 11, drive end bearing bracket.
Fig. 2 is mixing exciter panel type motor permanent magnet side view of the present invention.Wherein: 1, axle, 5, stator core, 7, permanent magnet.
Fig. 3 is mixing exciter panel type armature winding side view of the present invention.Wherein: 1, axle, 5, stator core, 8, stator poles, 9, armature winding.
Fig. 4 is mixing exciter panel type motor excitation winding side view of the present invention.Wherein: 1, axle, 4, Exciting Windings for Transverse Differential Protection, 5, stator core, 8, stator poles.
Fig. 5 is mixing exciter panel type rotor side view of the present invention.Wherein: 1, axle, 10, rotor core, 12, rotor pole.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention is described in further details.
Fig. 1 is the sectional side elevation of mixing exciter panel type motor of the present invention.As it can be seen, mixing exciter panel type motor is made up of axle (1), bearing (2), shell (3), Exciting Windings for Transverse Differential Protection (4), stator core (5), permanent magnet (7), stator poles (8), armature winding (9), rotor core (10) and drive end bearing bracket (11).Rotor core (10) in the form of annular discs is fixed on the centre of axle (1), be enclosed within axle (1) parallel with rotor core (10) of porose stator core (5) in the form of annular discs and middle.
Stator core (5) is fixed on motor housing (3), stator core (5) one side relative with rotor core (10) is fixed with permanent magnet (7) and stator poles (8) successively, and the permanent magnet (7) in fan annular has three stator poles (8) in fan annular;Stator core (5) in the middle of every two panels permanent magnet (7) has a groove, Exciting Windings for Transverse Differential Protection (4) is embedded in described groove and around stator core (5) coiling corresponding to a piece of permanent magnet (7), and Exciting Windings for Transverse Differential Protection (4) is parallel to axle (1);Each stator poles (8) is wound with an armature winding (9).There is the rotor pole that fan annular is protruded in rotor core (10) direction relative with stator core (5).
Fig. 2 is mixing exciter panel type motor permanent magnet side view of the present invention.As shown in the figure, stator core (5) in the form of annular discs is fixed with the permanent magnet (7) in fan annular, permanent magnet (7) 2N sheet altogether in fan annular, the magnetizing direction of permanent magnet (7) axial charging and adjacent permanent magnet (7) is contrary.
Fig. 3 is mixing exciter panel type armature winding side view of the present invention.As it can be seen, stator core (5) one side relative with rotor core (10) is fixed with permanent magnet (7) and stator poles (8) successively.All be fixed with 3 stator poles (8) in fan annular on every permanent magnet (7) along circular arc direction, 6N stator poles (8) is along the circumferential direction uniform;Each stator poles (8) is wound with an armature winding (9), three armature winding (9) of each permanent magnet (7) correspondence are around to identical, and the armature winding (9) of adjacent permanent magnet (7) correspondence is around on the contrary;Armature winding (9) can be divided into three-phase according to the difference of phase place.
Fig. 4 is mixing exciter panel type motor excitation winding side view of the present invention.As it can be seen, stator core (5) one side relative with rotor core (10) is fixed with permanent magnet (7) and stator poles (8) successively;Stator core (5) in the middle of every two panels permanent magnet (7) has a groove, Exciting Windings for Transverse Differential Protection (4) is embedded in described groove and around stator core (5) coiling corresponding to a piece of permanent magnet (7), Exciting Windings for Transverse Differential Protection (4) corresponding to adjacent permanent magnet (7) is in opposite direction, Exciting Windings for Transverse Differential Protection (4) is parallel to axle (1), adjacent Exciting Windings for Transverse Differential Protection around on the contrary.
Fig. 5 is mixing exciter panel type rotor side view of the present invention.As shown in the figure, rotor core (10) in the form of annular discs is fixed on the centre of axle (1), there is the rotor pole that fan annular is protruded in rotor core (10) direction relative with stator core (5), and the number of poles of described rotor pole is 4N.In the present embodiment, N=1.
The mixing exciter panel type the motor below present invention proposed is operated the explanation of principle.
Rotor is fixed on the axle of motor, rotates with axle.When rotor pole is with when wherein a phase stator poles is completely overlapped, the magnetic resistance of the linkage of the armature winding in this phase stator poles is minimum, magnetic linkage is maximum.When rotor pole and a phase stator poles completely disengage from, the magnetic resistance of this phase stator poles armature winding is maximum, magnetic linkage is minimum.
When described mixing exciter panel type motor is used as electromotor, if rotor pole slips into the stator poles at a phase armature winding place, the magnetic linkage of this phase armature winding increases, and this phase armature winding just induces an electric current and hinders the increase of magnetic linkage;When rotor pole skids off the stator poles at a phase armature winding place, the magnetic linkage of this phase armature winding reduces, and this phase armature winding just induces an electric current and hinders the reduction of magnetic linkage.
When described mixing exciter panel type motor is used as motor, three-phase windings connecing three-phase power converters, controller one communicates forward current to what magnetic linkage rose, communicates negative current to the one of magnetic linkage decline, and motor just can rotate forward.
The principle of composite excitation work is: to the logical forward current of Exciting Windings for Transverse Differential Protection, Exciting Windings for Transverse Differential Protection can produce and the magnetic field of permanent magnet equidirectional, makes air gap resultant magnetic field strengthen, to adapt to the operating mode of low speed high torque;To the logical negative current of Exciting Windings for Transverse Differential Protection, Exciting Windings for Transverse Differential Protection can produce magnetic field rightabout with permanent magnet, makes air gap resultant magnetic field weaken, to adapt to the operating mode of the weak magnetic of high speed.Exciting Windings for Transverse Differential Protection not only can strengthen permanent magnetic field but also can weaken permanent magnetic field, is conducive to improving low speed high torque operating mode and the weak magnetic operating mode of high speed.

Claims (2)

1. mixing exciter panel type motor, it is characterised in that:
It is made up of axle (1), bearing (2), shell (3), Exciting Windings for Transverse Differential Protection (4), stator core (5), permanent magnet (7), stator poles (8), armature winding (9), rotor core (10) and drive end bearing bracket (11);
Rotor core (10) in the form of annular discs is fixed on the centre of axle (1), what porose stator core (5) in the form of annular discs and middle was parallel with rotor core (10) is enclosed within axle (1), there is the rotor pole that fan annular is protruded in rotor core (10) direction relative with stator core (5), the number of poles of described rotor pole is 4N, N is natural number;
Stator core (5) is fixed on motor housing (3), and stator core (5) one side relative with rotor core (10) is fixed with permanent magnet (7) and stator poles (8) successively;
All being fixed with 3 stator poles (8) annular in fan along circular arc direction in permanent magnet (7) the 2N sheet altogether and every of fanning annular, 6N stator poles (8) is along the circumferential direction uniform;
The magnetizing direction of permanent magnet (7) axial charging and adjacent permanent magnet (7) is contrary;
Stator core (5) in the middle of every two panels permanent magnet (7) has a groove, Exciting Windings for Transverse Differential Protection (4) is embedded in described groove and around stator core (5) coiling corresponding to a piece of permanent magnet (7), and Exciting Windings for Transverse Differential Protection (4) is parallel to axle (1);Adjacent Exciting Windings for Transverse Differential Protection around on the contrary;
Being wound with an armature winding (9) in each stator poles (8), three armature winding (9) of each permanent magnet (7) correspondence are around to identical;The armature winding (9) of adjacent permanent magnet (7) correspondence is around on the contrary;Armature winding (9) can be divided into three-phase according to the difference of phase place.
2. mixing exciter panel type motor as claimed in claim 1, if the ratio of stator poles (8) polar arc and the pole span of this polar arc position is stator pole embrace, if the ratio of rotor pole polar arc and the pole span of this polar arc position is rotor pole arc coefficient, it is characterised in that:
Stator pole embrace is 0.5, and rotor pole arc coefficient is 0.5 or 0.333.
CN201610256121.1A 2016-04-25 2016-04-25 Mixing exciter panel type motor Active CN105790467B (en)

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CN105790467B CN105790467B (en) 2018-05-01

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107979192A (en) * 2016-10-24 2018-05-01 南京理工大学 A kind of Hybrid Excitation Switched Reluctance Motor of novel axial structure
CN112491231A (en) * 2020-12-31 2021-03-12 山东理工大学 Hybrid excitation salient pole block rotor switch flux motor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201107842Y (en) * 2006-12-04 2008-08-27 袁会文 Disc type switch reluctance motor
CN101621234A (en) * 2009-08-06 2010-01-06 东南大学 Magnetic flow switching type axial magnetic field magnetoelectric machine with middle stator structure
JP2012125021A (en) * 2010-12-07 2012-06-28 Daihatsu Motor Co Ltd Axial gap rotating machine
CN202475212U (en) * 2012-03-27 2012-10-03 山东大学 Permanent-magnet brushless motor for axial magnetic field
CN102710085A (en) * 2012-06-15 2012-10-03 山东大学 Hybrid excitation axial magnetic field disc-type switched reluctance motor
CN105245073A (en) * 2015-11-16 2016-01-13 南京理工大学 Stator permanent-magnetic doubly salient disc-type motor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201107842Y (en) * 2006-12-04 2008-08-27 袁会文 Disc type switch reluctance motor
CN101621234A (en) * 2009-08-06 2010-01-06 东南大学 Magnetic flow switching type axial magnetic field magnetoelectric machine with middle stator structure
JP2012125021A (en) * 2010-12-07 2012-06-28 Daihatsu Motor Co Ltd Axial gap rotating machine
CN202475212U (en) * 2012-03-27 2012-10-03 山东大学 Permanent-magnet brushless motor for axial magnetic field
CN102710085A (en) * 2012-06-15 2012-10-03 山东大学 Hybrid excitation axial magnetic field disc-type switched reluctance motor
CN105245073A (en) * 2015-11-16 2016-01-13 南京理工大学 Stator permanent-magnetic doubly salient disc-type motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107979192A (en) * 2016-10-24 2018-05-01 南京理工大学 A kind of Hybrid Excitation Switched Reluctance Motor of novel axial structure
CN112491231A (en) * 2020-12-31 2021-03-12 山东理工大学 Hybrid excitation salient pole block rotor switch flux motor

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