CN2432725Y - Self-drive monophase diametral winding permanent-magnet reluctance machine - Google Patents
Self-drive monophase diametral winding permanent-magnet reluctance machine Download PDFInfo
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- CN2432725Y CN2432725Y CN 00230258 CN00230258U CN2432725Y CN 2432725 Y CN2432725 Y CN 2432725Y CN 00230258 CN00230258 CN 00230258 CN 00230258 U CN00230258 U CN 00230258U CN 2432725 Y CN2432725 Y CN 2432725Y
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Abstract
The utility model relates to a self-drive monophase diametral winding permanent-magnet reluctance electrical machine which is composed of a stator and a rotor, wherein, the rotor is provided with salient poles and the number of the salient poles is a multiple of 6; the stator is provided with salient poles and the number of the salient poles is a multiple of 4; the stator pole near the air gap part is in a step shape. Permanent magnets are arranged at the yoke part of the stator at intervals, a winding coil edge is arranged in a stator slot which is away from the permanent magnets, and all coils are connected into a phase winding. The electrical machine has the advantages of simple structure, and bi-directional start.
Description
The utility model relates to a kind of reluctance motor with permanent magnetism, and it has single-phase whole apart from winding, and stator poles has ladder, can not need auxiliary starter equipment to realize two-way self-starting.
In general magneto, permanent magnet and winding are to be placed on stator and epitrochanterian respectively, and U.S. Pat: 00567295A has proposed the static double-salient reluctance motor of a kind of permanent magnet.Its winding and permanent magnet all are placed on the stator, and rotor structure is simple, are suitable for high-speed cruising, and have higher efficient and torque potentiality.But this motor has two weak points:
Winding is the short distance winding on the stator poles, has the winding current direction in half the groove opposite, and the magnetomotive force of generation is cancelled each other, and has caused the waste of winding with copper.
Because having torque is zero position, can not realize reliable starting as motor the time.
The purpose of this utility model is at problems of the prior art, proposes a kind of new stator pole structural, and with the starting problem of the reluctance motor that solves single-phase zone permanent magnetism, winding type of array simultaneously reasonable in design is to improve efficiency of motor.
The self-starting that the utility model proposes is single-phase whole apart from winding permanent-magnet magnetic resistance motor, is made up of stator 1 and rotor 6 two parts.Rotor has a multiple equally distributed salient pole 7 of 6.Stator has a multiple equally distributed salient pole 2 of 4, and stator poles partly is stairstepping near air gap; Permanent magnet 4 is placed at interval by the yoke portion 3 of stator, and the polarity of permanent magnet 4 is seen from circumference and is interspersed; Do not leaning on placement winding 5 coil sides in the groove of permanent magnet 4, all coils connects into a phase winding.
The single-phase whole principle of the said self-starting of the utility model apart from winding permanent-magnet magnetic resistance motor.Because the existence of permanent magnet and the saliency of motor, the winding magnetic linkage when not having electric current (the unloaded magnetic linkage of winding) is cyclic variation with rotor-position.With motor scheme shown in Figure 1 is example, and its period of change is 60 degree mechanical angles; Fig. 2 be the unloaded magnetic linkage of winding at one-period with the rotor-position change curve.Here stipulate that rotor-position shown in Figure 1 is 0 degree, rotor-position is counterclockwise for just.Be when the rotor rotation of motor constantly, can generate electromotive force at the two ends of winding, Fig. 3 for rotor when constant speed is rotated, the electromotive force waveform at winding two ends.If electric current in the winding and induced electromotive force same-phase, then motor sends electric energy, is operated in the generator state.If winding current and induced electromotive force antiphase, then motor absorbs electric energy, is operated in electric motor state.
At induced electromotive force is 0 position, and the electromagnetic torque of motor also is 0, when moving as motor, has two positions can not produce electromagnetic torque in the one-period, and in these two positions, motor is fail to start.But because stator poles is designed to stairstepping, electric current is that 0 o'clock magnetic field energy (unloaded magnetic field energy) changes with rotor-position, and Fig. 4 is the change curve of one-period hollow loaded magnetic field energy storage with rotor-position.According to minimum potential energy principal, will be in the position of magnetic field energy minimum (0 degree) during stationary rotor, when in the winding electric current being arranged, will produce electromagnetic torque in this position, the direction of electromagnetic torque will depend on and sense of current.Therefore, because stator poles is designed to stairstepping, when moving as motor, can realize by motor the starting of both forward and reverse directions.
Because self-starting that the utility model proposed is single-phase whole apart from winding permanent-magnet magnetic resistance motor, have only in half the stator slot to be placed with winding, so its stator winding lacks one times than motor windings of the prior art, saved the winding copper consumption.In addition, this motor both can be used as generator, also can be used as motor, can realize reliable starting when using as motor.This electric machine structure is simple, can two-wayly start, and has higher efficient.
Fig. 1: have the single-phase whole of 4 stator poles and 6 rotor poles apart from winding permanent-magnet magnetic resistance motor;
Fig. 2: the unloaded winding magnetic linkage in the said motor one-period of the utility model is with the rotor-position change curve;
Fig. 3: the unloaded induced electromotive force waveform of the said motor of the utility model when constant rotational speed;
Fig. 4: the unloaded magnetic field energy in the said motor one-period of the utility model is with the rotor-position change curve;
Fig. 5: can be used for single-phase whole typical case and control main circuit apart from winding permanent-magnet magnetic resistance motor;
Fig. 6: single-phase whole apart from winding permanent-magnet magnetic resistance motor according to the outer-rotor structure that 4 stator poles and 6 rotor poles are arranged.
Fig. 7: have the single-phase whole of 8 stator poles and 12 rotor poles apart from winding permanent-magnet magnetic resistance motor;
Figure 1 shows that the sectional view of the motor of preferred option of the present utility model.Motor is made up of stator 1 and rotor 6 two parts.Rotor 2 is made of soft magnetic material, and 6 equally distributed salient poles 7 are arranged; The winding 5 that permanent magnet 4 that the iron core that stator 1 is made of soft magnetic material, permanent magnetic material constitute and electric conducting material constitute is formed.
Stator core has 4 equally distributed salient poles 2, and permanent magnet 4 is placed on the yoke portion 3 of stator core, and winding 5 coil sides are placed in the radially relative a pair of groove unshakable in one's determination.Stator poles is designed to stairstepping, and the ladder of two adjacent stator poles is about their groove center line symmetry.
The utility model is said single-phase whole apart from winding permanent-magnet magnetic resistance motor, realizes that rotor scheme externally also is feasible.Fig. 6 is an example of this scheme, and its rotor 6 has 6 salient poles 7 in the outside of stator 1; Stator 1 links to each other with fixed axis, and 4 salient poles 2 are arranged, and two segmentations are arranged, and two permanent magnets 4 are placed between two segmentations, is identical with the polarity on permanent magnet 4 surfaces of the contact of each segmentation; The coil of two symmetries of conductor coiled in two grooves, but two coil serial or parallel connections are formed a phase winding.Stator poles is notch cuttype, the motor of this structure since the stator radius less than rotor radius, the tip lengths of winding 5 is less, can save the end copper consumption of winding.
In fact, the utility model is said single-phase whole apart from winding permanent-magnet magnetic resistance motor, and the scheme of the multiple that any 4/6 rotor/stator number of poles is cooperated all is feasible.For example, Figure 7 shows that the example that one 8/12 utmost points cooperate.Its stator 1 has 8 salient poles 2, and rotor 6 has 12 salient poles 7.The piece number of permanent magnet 4 should be 4 mutually.Stator 1 has four similar segmentations, and two salient poles 2 are arranged in each segmentation.Four permanent magnets 4 are placed between four stator-sectionals, the latter end of each segmentation the polarity of right permanent magnet 4 be identical.Conductor in four grooves is formed four coils, but these four coil serial or parallel connections become a phase winding, and winding or overhang do not intersect.Stator poles is notch cuttype.
The size of this motor electromagnetic torque is to realize that by the size of current in the control winding in order to control the electric current in the winding, motor is powered by switch element.Fig. 5 is the main circuit schematic diagram of a typical motor power supply, and it has four controlled power switch element T1, T2, T3, T4 and four power diode D1, D2, D3, D4.When switch element T1 and T4 conducting, will flow through forward current in the winding, when switch element T2 and T3 conducting, will flow through reverse current in the winding, diode is used in order to turn-off subsequent flows in controllable switch element.
Fig. 2 be the unloaded magnetic linkage of winding at one-period with the rotor-position change curve.Wherein ordinate is: magnetic linkage ψ/Wb, and abscissa is: rotor position/°.
Fig. 3 for rotor when constant speed is rotated, the electromotive force waveform at winding two ends.Wherein ordinate is: induced electromotive force/V, and abscissa is: rotor position/°.
Fig. 4 is the change curve of one-period hollow loaded magnetic field energy storage with rotor-position.Wherein ordinate is: magnetic field energy/J, and abscissa is: rotor position/°.
Claims (6)
1. a self-starting is single-phase whole apart from winding permanent-magnet magnetic resistance motor, is made up of stator (1) and rotor (6) two parts, it is characterized in that, rotor has a multiple equally distributed salient pole (7) of (6).Stator has a multiple equally distributed salient pole (2) of (4), and stator poles partly is stairstepping near air gap; Permanent magnet (4) is placed at interval by the yoke portion (3) of stator, places winding (5) coil side in the stator slot of not doing (4) by permanent magnetism, and winding strides across two stator poles, and all coils connects into a phase winding.
2. single-phase whole apart from winding permanent-magnet magnetic resistance motor according to the described self-starting of claim 1, it is characterized in that the outside of stator at rotor.
3. single-phase whole apart from winding permanent-magnet magnetic resistance motor according to the described self-starting of claim 1, it is characterized in that the inside of stator at rotor.
4. single-phase whole apart from winding permanent-magnet magnetic resistance motor according to the described self-starting of claim 1, the ladder that it is characterized in that adjacent stator poles is about groove center line symmetry.
5. single-phase whole apart from winding permanent-magnet magnetic resistance motor according to the described self-starting of claim 1, it is characterized in that the permanent magnet number is half of stator poles.
6. single-phase whole apart from winding permanent-magnet magnetic resistance motor according to the described self-starting of claim 1, the polarity that it is characterized in that permanent magnet adjacent on the circumference is opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00230258 CN2432725Y (en) | 2000-06-27 | 2000-06-27 | Self-drive monophase diametral winding permanent-magnet reluctance machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00230258 CN2432725Y (en) | 2000-06-27 | 2000-06-27 | Self-drive monophase diametral winding permanent-magnet reluctance machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2432725Y true CN2432725Y (en) | 2001-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00230258 Expired - Fee Related CN2432725Y (en) | 2000-06-27 | 2000-06-27 | Self-drive monophase diametral winding permanent-magnet reluctance machine |
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| Country | Link |
|---|---|
| CN (1) | CN2432725Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035333A (en) * | 2010-12-23 | 2011-04-27 | 西安交通大学 | Permanent magnet switched reluctance motor employing distributed winding |
| CN101854105B (en) * | 2009-11-24 | 2012-11-28 | 于佳衣 | Single-phase self-starting permanent magnet synchronous motor |
| CN103986256A (en) * | 2013-02-07 | 2014-08-13 | 艾默生环境优化技术(苏州)有限公司 | Switched reluctance motor rotor and motor thereof |
| CN105932793A (en) * | 2016-06-08 | 2016-09-07 | 华中科技大学 | Doubly salient permanent magnet synchronous motor with unequally spaced stator poles |
| CN105978275A (en) * | 2016-01-28 | 2016-09-28 | 冯西川 | Loop superposition magnetic circuit switch reluctance direct current motor |
| CN106253530A (en) * | 2016-09-04 | 2016-12-21 | 华中科技大学 | A kind of across two tooth concentratred winding vernier magnetoes |
| CN111884376A (en) * | 2020-08-04 | 2020-11-03 | 珠海格力电器股份有限公司 | Single-phase permanent magnet self-starting motor and electric equipment with same |
| CN112688444A (en) * | 2020-12-11 | 2021-04-20 | 杭州星成电气科技有限公司 | Single-phase reluctance motor with self-starting capability |
-
2000
- 2000-06-27 CN CN 00230258 patent/CN2432725Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101854105B (en) * | 2009-11-24 | 2012-11-28 | 于佳衣 | Single-phase self-starting permanent magnet synchronous motor |
| CN102035333A (en) * | 2010-12-23 | 2011-04-27 | 西安交通大学 | Permanent magnet switched reluctance motor employing distributed winding |
| CN103986256A (en) * | 2013-02-07 | 2014-08-13 | 艾默生环境优化技术(苏州)有限公司 | Switched reluctance motor rotor and motor thereof |
| CN103986256B (en) * | 2013-02-07 | 2016-08-10 | 艾默生环境优化技术(苏州)有限公司 | Switched reluctance motor rotor and motor thereof |
| CN105978275B (en) * | 2016-01-28 | 2018-07-27 | 冯西川 | Circumferential direction superposition Magnetic circuit switch magnetic resistance dc motor |
| CN105978275A (en) * | 2016-01-28 | 2016-09-28 | 冯西川 | Loop superposition magnetic circuit switch reluctance direct current motor |
| CN105932793A (en) * | 2016-06-08 | 2016-09-07 | 华中科技大学 | Doubly salient permanent magnet synchronous motor with unequally spaced stator poles |
| CN105932793B (en) * | 2016-06-08 | 2018-07-03 | 华中科技大学 | A kind of not equidistant bisalient-pole permanent-magnet synchronous machine of stator poles |
| CN106253530A (en) * | 2016-09-04 | 2016-12-21 | 华中科技大学 | A kind of across two tooth concentratred winding vernier magnetoes |
| CN106253530B (en) * | 2016-09-04 | 2019-04-12 | 华中科技大学 | One kind is across two tooth concentratred winding vernier magnetoes |
| CN111884376A (en) * | 2020-08-04 | 2020-11-03 | 珠海格力电器股份有限公司 | Single-phase permanent magnet self-starting motor and electric equipment with same |
| CN112688444A (en) * | 2020-12-11 | 2021-04-20 | 杭州星成电气科技有限公司 | Single-phase reluctance motor with self-starting capability |
| CN112688444B (en) * | 2020-12-11 | 2021-11-26 | 杭州星成电气科技有限公司 | Single-phase reluctance motor with self-starting capability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |