CN204633551U - The Flux modulation formula compound machine of block form composite excitation structure - Google Patents
The Flux modulation formula compound machine of block form composite excitation structure Download PDFInfo
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- CN204633551U CN204633551U CN201520398425.2U CN201520398425U CN204633551U CN 204633551 U CN204633551 U CN 204633551U CN 201520398425 U CN201520398425 U CN 201520398425U CN 204633551 U CN204633551 U CN 204633551U
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Abstract
The Flux modulation formula compound machine of block form composite excitation structure, relates to Flux modulation formula compound machine field.Combined with traditional electrical excitation electromotor by magneto, conventional motors realized to reduced volume, improving while power factor, realizing motor low speed high torque and export, and air-gap field can the object of flexible.External stator is fixed on motor case, armature winding is wrapped on described external stator, permanent magnetism internal stator and electric excitation internal stator are separately fixed at the left and right sides of machine shaft and are separated by air gap, permanent magnet is fixed on permanent magnetism inner-stator iron core, excitation winding is wrapped on electric excitation inner-stator iron core, adjustable magnetic rotor between interior external stator, and is fixedly mounted on machine shaft by keyway, and described adjustable magnetic rotor is separated by air gap and interior external stator.The utility model combines the feature of block form mixed excitation electric machine and novel magnetic gear, can modulate air-gap flux, obtains the performance of low speed high torque.
Description
Technical field
The utility model relates to Flux modulation formula compound machine field.
Background technology
In recent years owing to having high residual flux density, high-coercive force, the development of the rare earth permanent-magnetic material of the features such as high energy product, makes magneto compared with traditional electro-magnetic motor, in configuration aspects, there is volume little, the advantages such as structure is simple, easy to maintenance, have efficiency at aspect of performance high, power factor is high, the advantages such as power density is large, but magneto is owing to adopting single permanent magnet excitation, and flux control is more difficult.Traditional electro-magnetic motor can regulate air-gap field easily by regulating direct current or AC excitation electric current, but its complex structure, Driving Torque are little, power factor is low.
The main feature of mixed excitation electric machine is the air-gap field of the magnetic field joint effect motor that the magnetic field that produces of permanent magnet and electric excitation winding produce and the advantage utilizing exciting current adjustable regulates flexibly to air gap flux density size.Mixed excitation electric machine overcomes Magnetic Field for Permanent Magnet Electrical Machines simultaneously and regulates difficult and that electro-magnetic motor power factor is low shortcoming, make motor have the advantages such as volume is little, compact conformation, power factor are high, flux control is convenient, but still there is the little problem of Driving Torque.
Utility model content
The utility model proposes a kind of Flux modulation formula compound machine of block form composite excitation structure, combined with traditional electrical excitation electromotor by magneto, while conventional motors being realized to reduced volume, improving power factor, realize motor low speed high torque to export, and air-gap field can the object of flexible.
The Flux modulation formula compound machine of block form composite excitation structure comprises external stator, permanent magnetism internal stator, electricity excitation internal stator, keyway, excitation winding, armature winding, permanent magnet and adjustable magnetic rotor, described external stator is fixed on motor case, armature winding is wrapped on described external stator, permanent magnetism internal stator and electric excitation internal stator are separately fixed at the left and right sides of machine shaft and are separated by air gap, permanent magnet is fixed on permanent magnetism inner-stator iron core, excitation winding is wrapped on electric excitation inner-stator iron core, adjustable magnetic rotor is between interior external stator, and be fixedly mounted on machine shaft by keyway, and described adjustable magnetic rotor is separated by air gap and interior external stator.
Beneficial effect: the Flux modulation formula compound machine of the block form composite excitation structure that the utility model proposes combines the feature of block form mixed excitation electric machine and novel magnetic gear, can modulate air-gap flux, obtain the performance of low speed high torque, well meet the requirement of the Direct driver such as electric automobile and wind power generation occasion, compared with meeting motor with traditional series connected type composite excitation simultaneously, the electric excitation efficiency of motor described in the utility model is high, permanent magnet avoids the danger of demagnetization, utilance improves greatly, excitation winding is wrapped on internal stator, non-brushing can be achieved well, permanent magnet and electric excitation part can share an external stator, compare with using two external stators separated, the overload capacity of motor improves, and structure is simple, easy for installation, simultaneously, the low speed high torque of control and system that adjustable magnetic rotor can realize high-speed electric expreess locomotive exports, at electric automobile, wind power generation field has significant application value.
Accompanying drawing explanation
Fig. 1 is the axial cross-sectional views of the Flux modulation formula compound machine of the block form composite excitation structure described in embodiment one;
Fig. 2 is the sectional view of the permanent magnet of the Flux modulation formula compound machine of block form composite excitation structure described in the utility model;
Fig. 3 is the sectional view of the electric excitation part of the Flux modulation formula compound machine of block form composite excitation structure described in the utility model;
Fig. 4 is the structural representation of the adjustable magnetic rotor 7 described in embodiment four.
Embodiment
Embodiment one, composition graphs 1 to Fig. 3 illustrates this embodiment, the Flux modulation formula compound machine of the block form composite excitation structure described in this embodiment comprises external stator 1, permanent magnetism internal stator 5, electricity excitation internal stator 2, keyway 8, excitation winding 3, armature winding 4, permanent magnet 6 and adjustable magnetic rotor 7, described external stator 1 is fixed on motor case, armature winding 4 is wrapped on described external stator 1, permanent magnetism internal stator 5 and electric excitation internal stator 2 are separately fixed at the left and right sides of machine shaft and are separated by air gap, permanent magnet 6 is fixed on permanent magnetism internal stator 5 iron core, excitation winding 3 is wrapped on electric excitation internal stator 2 iron core, adjustable magnetic rotor 7 is between interior external stator, and be fixedly mounted on machine shaft by keyway 8, and described adjustable magnetic rotor 7 is separated by air gap and interior external stator.
In present embodiment, excitation winding 3 is wrapped on the iron core of electric excitation internal stator 2, achieve the non-brushing of motor, excitation winding 3 is connected in some way, the right-hand rule is followed when direct current is filled in guarantee, excitation flux linkage direction is corresponding with permanent magnetism magnetizing direction, by changing the direction of exciting current, make machine operation in increasing magnetic or weak magnetic state, permanent magnetic field closes through permanent magnet-internal stator yoke-Nei air gap-adjustable magnetic rotor-outer air gap-external stator yoke, excitation field is through internal stator yoke-Nei air gap-adjustable magnetic rotor-outer air gap-external stator yoke discord, therefore, change the size of direct current in electric magnet exciting coil, the flux control that width encloses can be carried out to motor, in addition, this motor not only can regulate armature winding induced potential by regulating exciting current, and can when armature winding is short-circuited fault, by the magnetic field regulating exciting current to offset permanent magnet generation, efficient demagnetization when realizing armature short circuit in winding fault.
Motor described in present embodiment due to the magnetic circuit of permanent magnet and electric excitation part separate, regulate exciting current can not cause the irreversible demagnetization of permanent magnet, motor reliability is high, and electric excitation efficiency is high.
The number of pole-pairs P of the electric motor internal stator described in present embodiment
1with the number of pole-pairs P of external stator
2sum is adjustable magnetic block number Ns in adjustable magnetic ring, the air-gap harmonic magnetic field that potential source gained arrives is powered up by external stator armature winding, and the air-gap harmonic magnetic field that permanent magnet on internal stator and excitation winding produce carries out analytical analysis, obtains internal stator number of pole-pairs P in compound machine
1, armature winding number of pole-pairs P
2with the pass between adjustable magnetic block number Ns is: P
1=| mP
2+ kNs|, wherein, m=1,3,5 ... ,+∞; K=0, ± 1, ± 2 ..., ± ∞;
Work as m=1, during k=-1, the harmonic field obtained after being modulated by adjustable magnetic ring is the strongest, and the harmonic field of the main transmitting torque in adjustable magnetic ring both sides, has identical angular rate, can obtain this and meet electric machine speed regulation when gearratio Gr=mP
2+ kNs/mP
2, select the quantitative proportion of internal stator number of pole-pairs and adjustable magnetic ring like this, the stable demand of torque can be met, otherwise cannot transmitting torque stably, as shown in Figures 2 and 3, selection external stator armature winding number of pole-pairs P
2=4, adjustable magnetic number of rings Ns=10, so just can obtain the number of pole-pairs P of internal stator
1=6, realizing speed ratio is 10/4.
The difference of the Flux modulation formula compound machine of the block form composite excitation structure described in embodiment two, this embodiment and embodiment one is, described permanent magnetism internal stator 5 adopts built-in tangential magnetic steel structure or surface-mount type magnetic steel structure to realize.
The difference of the Flux modulation formula compound machine of the block form composite excitation structure described in embodiment three, this embodiment and embodiment two is, the number of pole-pairs of described permanent magnetism internal stator 5 is identical with the number of pole-pairs of electric excitation internal stator 2.
The difference of the Flux modulation formula compound machine of the block form composite excitation structure described in embodiment four, this embodiment and embodiment three is, described adjustable magnetic rotor 7 is composed in turn to form by permeability magnetic material 9 and non-magnet material 10.
Adjustable magnetic rotor 7 described in present embodiment have employed the operation principle of New Magnetic Field Controlled gear drive; and then be applied in motor; have that torque density is high, operational efficiency is high, the feature such as untouchable moment transmission and overload self-shield; the potentiality that mechanical gear runs in the environment such as clean, low temperature and high-altitude can be replaced; structure is easier, makes the function of low speed high torque embody more significantly simultaneously.
Claims (4)
1. the Flux modulation formula compound machine of block form composite excitation structure, it is characterized in that, it comprises external stator (1), permanent magnetism internal stator (5), electricity excitation internal stator (2), keyway (8), excitation winding (3), armature winding (4), permanent magnet (6) and adjustable magnetic rotor (7), described external stator (1) is fixed on motor case, armature winding (4) is wrapped on described external stator (1), permanent magnetism internal stator (5) and electric excitation internal stator (2) are separately fixed at the left and right sides of machine shaft and are separated by air gap and machine shaft, permanent magnet (6) is fixed on permanent magnetism internal stator (5) iron core, excitation winding (3) is wrapped on electric excitation internal stator (2) iron core, adjustable magnetic rotor (7) is between interior external stator, and be fixedly mounted on machine shaft by keyway (8), and described adjustable magnetic rotor (7) is separated by air gap and interior external stator.
2. the Flux modulation formula compound machine of block form composite excitation structure according to claim 1, is characterized in that, described permanent magnetism internal stator (5) adopts built-in tangential magnetic steel structure or surface-mount type magnetic steel structure to realize.
3. the Flux modulation formula compound machine of block form composite excitation structure according to claim 2, is characterized in that, the number of pole-pairs of described permanent magnetism internal stator (5) is identical with the number of pole-pairs of electric excitation internal stator (2).
4. the Flux modulation formula compound machine of block form composite excitation structure according to claim 3, it is characterized in that, described adjustable magnetic rotor (7) is composed in turn to form by permeability magnetic material (9) and non-magnet material (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520398425.2U CN204633551U (en) | 2015-06-10 | 2015-06-10 | The Flux modulation formula compound machine of block form composite excitation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520398425.2U CN204633551U (en) | 2015-06-10 | 2015-06-10 | The Flux modulation formula compound machine of block form composite excitation structure |
Publications (1)
| Publication Number | Publication Date |
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| CN204633551U true CN204633551U (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520398425.2U Withdrawn - After Issue CN204633551U (en) | 2015-06-10 | 2015-06-10 | The Flux modulation formula compound machine of block form composite excitation structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106218420A (en) * | 2016-08-09 | 2016-12-14 | 南方科技大学 | Driven by power used for electric vehicle and flywheel energy storage mixing arrangement and energy storage method thereof |
| CN104868670B (en) * | 2015-06-10 | 2017-03-22 | 哈尔滨理工大学 | Magnetic flux modulated composite motor in parallel hybrid excitation structure |
| CN107959365A (en) * | 2017-11-22 | 2018-04-24 | 哈尔滨理工大学 | Magnetic flux adjustable type magnetic gear compound machine |
| CN112636562A (en) * | 2020-11-30 | 2021-04-09 | 珠海格力电器股份有限公司 | Magnetic gear and composite motor with same |
| CN114050704A (en) * | 2021-11-23 | 2022-02-15 | 西安交通大学 | Built-in permanent magnet variable voltage frequency converter based on magnetic field modulation principle and design method |
-
2015
- 2015-06-10 CN CN201520398425.2U patent/CN204633551U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868670B (en) * | 2015-06-10 | 2017-03-22 | 哈尔滨理工大学 | Magnetic flux modulated composite motor in parallel hybrid excitation structure |
| CN106218420A (en) * | 2016-08-09 | 2016-12-14 | 南方科技大学 | Driven by power used for electric vehicle and flywheel energy storage mixing arrangement and energy storage method thereof |
| CN107959365A (en) * | 2017-11-22 | 2018-04-24 | 哈尔滨理工大学 | Magnetic flux adjustable type magnetic gear compound machine |
| CN112636562A (en) * | 2020-11-30 | 2021-04-09 | 珠海格力电器股份有限公司 | Magnetic gear and composite motor with same |
| CN114050704A (en) * | 2021-11-23 | 2022-02-15 | 西安交通大学 | Built-in permanent magnet variable voltage frequency converter based on magnetic field modulation principle and design method |
| CN114050704B (en) * | 2021-11-23 | 2022-09-27 | 西安交通大学 | Built-in permanent magnet variable voltage frequency converter based on magnetic field modulation principle and design method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150909 Effective date of abandoning: 20171114 |
|
| AV01 | Patent right actively abandoned |