CN201278474Y - Mixed excitation type permanent magnet switch magnet link motor - Google Patents
Mixed excitation type permanent magnet switch magnet link motor Download PDFInfo
- Publication number
- CN201278474Y CN201278474Y CNU2008201641883U CN200820164188U CN201278474Y CN 201278474 Y CN201278474 Y CN 201278474Y CN U2008201641883 U CNU2008201641883 U CN U2008201641883U CN 200820164188 U CN200820164188 U CN 200820164188U CN 201278474 Y CN201278474 Y CN 201278474Y
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- iron core
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Abstract
The utility model discloses a hybrid-excited permanent magnet flux-switching motor comprising rotors, stators and a non-magnetic casing. The rotors are tooth socket type iron cores; stator cores comprise permanent magnets, first U-shaped iron cores, magnetoresistive sheets and second U-shaped iron cores which are sequentially connected; north poles and south poles of the permanent magnets are arranged alternatively; each permanent magnet as well as one side of one first U-shaped iron core and one side of one second U-shaped iron core which are clung to the two sides of the permanent magnet form an armature tooth; one magnetoresistive sheet as well as the other side of the first U-shaped iron core and the other side of the second U-shaped iron core which are clung to the two sides of the magnetoresistive sheet form an excitation tooth; a three-phase armature winding is winded round the armature tooth; and a single-phase excitation winding is winded round the excitation tooth. In the hybrid-excited permanent magnet flux-switching motor, an air gap filed is formed by the electrically excited magnetic field generated by the single-phase excitation windings and the field generated by the permanent magnets, and the air gap filed is adjustable, so that the hybrid-excited permanent magnet flux-switching motor has excellent controllability, improves the utilization rates of the permanent magnets, has equivalent fault tolerance capacity, is easy to enlarge the running speed range and meet the requirements of different occasions.
Description
Technical field
The utility model relates to permanent-magnet brushless DC electric machine, and especially a kind of mixing excitation type permanent magnet switch magnetic linkage electric machine belongs to the motor manufacturing technology field.
Background technology
Motor is the main driver part in the modern industry system, and the motor of excellent performance is most important to whole drive system.In recent years, development along with power electronic technology, permanent magnetic material and Control Technique of Microcomputer, permanent-magnet brushless DC electric machine is developed rapidly, permanent-magnet brushless DC electric machine has efficiently, the characteristics of high power density, along with the appearance of high performance permanent magnetic materials, improved the power density and the performance of permanent-magnet brushless DC electric machine greatly.On the other hand, switched reluctance machines is because characteristics such as simple in structure, good reliability obtain application more and more widely.In the middle of the stator tooth of switched reluctance machines, place the permanent-magnetic-switch flux linkage motor that permanent magnet obtains, combine the characteristics of switched reluctance machines and magneto, characteristics such as existing switched reluctance machines property simple and reliable for structure is good have characteristics such as magneto power density height simultaneously concurrently.In permanent-magnetic-switch flux linkage motor, rotor only is made of core lamination, and is simple and reliable for structure; Permanent magnet and armature winding all place on the stator, are highly susceptible to the heat radiation cooling.
But the air-gap field of traditional permanent-magnetic-switch flux linkage motor is mainly produced by permanent magnet excitation, is difficult to regulate, and has so just limited the operational speed range of motor.In addition, also exist leakage field serious in traditional permanent-magnetic-switch flux linkage motor, problem such as the permanent magnet utilance is low.
Summary of the invention
The purpose of this utility model is to propose a kind of mixing excitation type permanent magnet switch magnetic linkage electric machine, electricity excitation magnetic field that its excitation winding produces and permanent magnetic field produce magnetic field and constitute air-gap field jointly, thereby realize that air-gap field is adjustable, obtain the excellent more controllability of motor, improve the permanent magnet utilance simultaneously and possess suitable fault-tolerant ability, be fit to be applied to fields such as industrial transmission.
Mixing excitation type permanent magnet switch magnetic linkage electric machine of the present utility model, comprise rotor, stator and non-magnetic casing, rotor is the Alveolus type iron core, be fixed on the interior stator core of casing by permanent magnet, first " U " shape iron core, magnetoresistive bit and second " U " the shape iron core formation that circulates successively, the permanent magnet N utmost point, the S utmost point is alternately arranged, permanent magnet and be close to first of permanent magnet both sides, second " U " one side unshakable in one's determination constitutes armature tooth, magnetoresistive bit and be close to first of magnetoresistive bit both sides, second " U " another side unshakable in one's determination constitutes the excitation tooth, threephase armature winding around the home on the armature tooth, single-phase around the home excitation winding on the excitation tooth, threephase armature winding and excitation winding are respectively concentrated winding.
Above-mentioned rotor core is formed by silicon steel plate packing.
Above-mentioned first " U " shape is unshakable in one's determination and second " U " is unshakable in one's determination is formed by silicon steel plate packing.First " U " shape opening unshakable in one's determination and that second " U " is unshakable in one's determination can be the standard-sized sheet mouth, also can be half opening.
In the utility model, said permanent magnet is neodymium iron boron, SmCo or the ferrite of parallel magnetization.Said magnetoresistive bit is plastics, aluminium, not magnetic conduction steel or pottery.Said casing is aluminium or magnetic conduction steel not.
Because the saliency that rotor tooth forms, along with the change of rotor-position, the permanent magnet excitation magnetic linkage generation bipolarity of armature winding institute hinge changes, and induction produces back-emf thus, can drive rotor rotation if apply suitable electric current to armature winding.
During work, the threephase armature winding of mixing excitation type permanent magnet switch magnetic linkage electric machine is linked to each other with the control circuit that connects DC power supply.Utilize rotor-position sensor detection rotor position, determine the conducting state of threephase armature winding thus, because it is the three-phase voltage of f that DC power supply is given three phase winding loading frequencies by control circuit, then in the threephase armature winding, flow through the three-phase current that frequency is all f, so rotor speed n=60f/p (p is the armature winding number of pole-pairs).Be added to voltage swing and frequency on the threephase armature winding, the then speed of scalable motor by control.Single-phase excitation winding is connect DC power supply, as required excitation winding is imposed electric current forward or backwards, the permanent magnetism air-gap field is played the effect of strengthening or weakening.By adjusting to exciting current direction and size, realize adjusting, thereby regulate the motor speed of service, torque etc. the synthetic air-gap field of motor, be fit to the needs of different occasions.In addition, the disclosed mixing excitation type permanent magnet switch magnetic linkage electric machine of the utility model, the armature winding arrangement mode that is adopted, armature winding and excitation winding are intervally arranged, mutual inductance is very little between the armature winding, realized the electromagnetic isolated between the armature winding, made motor possess certain fault-tolerant ability like this.The beneficial effects of the utility model are:
1. permanent magnet excitation and excitation winding electricity excitation is synthesized air-gap field jointly, has realized the controllability of air-gap field, makes mixing excitation type permanent magnet switch magnetic linkage electric machine have better controllability.
2. rotor only is made of core lamination, and is simple in structure, reliable.
3. permanent magnet and winding all place on the stator, are easy to heat radiation, cooling, improve power density.
4. armature winding and excitation winding are intervally arranged, between the armature winding mutual inductance very little, realized the electromagnetic isolated between the armature winding, have higher fault freedom.
5. the excitation tooth that has magnetoresistive bit plays the isolated effect of physics to armature winding, further improves the fault freedom of motor.
6. the permanent magnet utilance improves.
7. can adopt conventional permanent magnet brushless control of DC method, control flexible, various.
Description of drawings
Fig. 1 is the structural representation of the utility model mixing excitation type permanent magnet switch magnetic linkage electric machine.
Embodiment
With reference to Fig. 1, mixing excitation type permanent magnet switch magnetic linkage electric machine comprises rotor 1, stator 2 and non-magnetic casing 5, rotor is the Alveolus type iron core, be fixed on the interior stator core of casing by permanent magnet 2.1, first " U " shape iron core 2.2, magnetoresistive bit 2.3 and second " U " shape iron core 2.4 formation that circulates successively, the permanent magnet N utmost point, the S utmost point is alternately arranged, permanent magnet 2.1 and be close to first of permanent magnet both sides, second " U " one side unshakable in one's determination constitutes armature tooth, magnetoresistive bit 2.3 and be close to first of magnetoresistive bit both sides, second " U " another side unshakable in one's determination constitutes the excitation tooth, threephase armature winding 3 around the home on the armature tooth, single-phase around the home excitation winding 4 on the excitation tooth, threephase armature winding 3 and excitation winding 4 are respectively concentrated winding.
In the illustrated example, rotor 1 has 10 teeth, stator has 6 armature tooth and 6 excitation teeth that are wound with excitation winding of being wound with the threephase armature winding, permanent magnet of each armature tooth therebetween, the adjacent permanent magnet N utmost point, the S utmost point are alternately arranged, totally 6 permanent magnets, magnetoresistive bit of each excitation tooth therebetween, totally 6 magnetoresistive bit.The threephase armature winding is two pairs and extremely concentrates winding that single-phase excitation winding is six pairs and extremely concentrates winding.
Mixing excitation type permanent magnet switch magnetic linkage electric machine of the present utility model, air-gap field is made of jointly the electricity excitation magnetic field of excitation winding generation and the magnetic field of permanent magnet generation, air-gap field is adjustable, make motor have excellent controllability, improve the permanent magnet utilance simultaneously and possess suitable fault-tolerant ability, be easy to enlarge the motor operational speed range, satisfy the different application occasion.
Claims (7)
1. mixing excitation type permanent magnet switch magnetic linkage electric machine, it is characterized in that comprising rotor (1), stator (2) and non-magnetic casing (5), rotor is the Alveolus type iron core, be fixed on the interior stator core of casing by permanent magnet (2.1), first " U " shape iron core (2.2), magnetoresistive bit (2.3) and second " U " shape iron core (2.4) formation that circulates successively, the permanent magnet N utmost point, the S utmost point is alternately arranged, permanent magnet (2.1) and be close to first of permanent magnet both sides, second " U " one side unshakable in one's determination constitutes armature tooth, magnetoresistive bit (2.3) and be close to first of magnetoresistive bit both sides, second " U " another side unshakable in one's determination constitutes the excitation tooth, threephase armature winding (3) around the home on the armature tooth, single-phase around the home excitation winding (4) on the excitation tooth, threephase armature winding (3) and excitation winding (4) are respectively concentrated winding.
2. mixing excitation type permanent magnet switch magnetic linkage electric machine according to claim 1 is characterized in that said rotor core is formed by silicon steel plate packing.
3. mixing excitation type permanent magnet switch magnetic linkage electric machine according to claim 1 is characterized in that said first " U " shape iron core (2.2) and second " U " (2.4) unshakable in one's determination are to be formed by silicon steel plate packing.
4. mixing excitation type permanent magnet switch magnetic linkage electric machine according to claim 1 is characterized in that the opening of said first " U " shape iron core (2.2) and second " U " (2.4) unshakable in one's determination is standard-sized sheet mouth or half opening.
5. mixing excitation type permanent magnet switch magnetic linkage electric machine according to claim 1 is characterized in that said permanent magnet (2.1) is the neodymium iron boron of parallel magnetization, SmCo or ferrite.
6. mixing excitation type permanent magnet switch magnetic linkage electric machine according to claim 1 is characterized in that said magnetoresistive bit (2.3) is plastics, aluminium, not magnetic conduction steel or pottery.
7. mixing excitation type permanent magnet switch magnetic linkage electric machine according to claim 1 is characterized in that said casing (5) is aluminium or magnetic conduction steel not.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201641883U CN201278474Y (en) | 2008-09-09 | 2008-09-09 | Mixed excitation type permanent magnet switch magnet link motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201641883U CN201278474Y (en) | 2008-09-09 | 2008-09-09 | Mixed excitation type permanent magnet switch magnet link motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201278474Y true CN201278474Y (en) | 2009-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201641883U Expired - Lifetime CN201278474Y (en) | 2008-09-09 | 2008-09-09 | Mixed excitation type permanent magnet switch magnet link motor |
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| Country | Link |
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| CN (1) | CN201278474Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITRM20090566A1 (en) * | 2009-11-04 | 2011-05-05 | Francesco Ranchella | ELECTRIC PHASE-STORED AND STABILIZED MOTOR WITH MAGNETIC FLOW DEVIATION |
| CN102055255A (en) * | 2010-12-10 | 2011-05-11 | 上海电机学院 | Outer rotor magnetic flux switching double-salient motor |
| CN102185451A (en) * | 2011-04-19 | 2011-09-14 | 南京航空航天大学 | Segmented rotor type magnetic flux switching motor with hybrid excitation and magnetic adjustment method |
| CN102545415A (en) * | 2012-02-15 | 2012-07-04 | 中国科学院电工研究所 | Radial magnetic field motor with amorphous alloy |
| CN103199661A (en) * | 2013-04-25 | 2013-07-10 | 东南大学 | Built-in permanent magnet memory motor of magnetic flux switching type |
| CN104935095A (en) * | 2015-06-15 | 2015-09-23 | 西安交通大学 | U-shaped stator hybrid-excitation switch reluctance machine |
| CN110017329A (en) * | 2019-04-22 | 2019-07-16 | 南京埃克锐特机电科技有限公司 | A kind of E type structure electromagnetic type radial direction magnetic bearing |
-
2008
- 2008-09-09 CN CNU2008201641883U patent/CN201278474Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITRM20090566A1 (en) * | 2009-11-04 | 2011-05-05 | Francesco Ranchella | ELECTRIC PHASE-STORED AND STABILIZED MOTOR WITH MAGNETIC FLOW DEVIATION |
| CN102055255A (en) * | 2010-12-10 | 2011-05-11 | 上海电机学院 | Outer rotor magnetic flux switching double-salient motor |
| CN102185451A (en) * | 2011-04-19 | 2011-09-14 | 南京航空航天大学 | Segmented rotor type magnetic flux switching motor with hybrid excitation and magnetic adjustment method |
| CN102545415A (en) * | 2012-02-15 | 2012-07-04 | 中国科学院电工研究所 | Radial magnetic field motor with amorphous alloy |
| CN103199661A (en) * | 2013-04-25 | 2013-07-10 | 东南大学 | Built-in permanent magnet memory motor of magnetic flux switching type |
| CN104935095A (en) * | 2015-06-15 | 2015-09-23 | 西安交通大学 | U-shaped stator hybrid-excitation switch reluctance machine |
| CN110017329A (en) * | 2019-04-22 | 2019-07-16 | 南京埃克锐特机电科技有限公司 | A kind of E type structure electromagnetic type radial direction magnetic bearing |
| CN110017329B (en) * | 2019-04-22 | 2024-05-17 | 南京埃克锐特机电科技有限公司 | Electromagnetic radial magnetic bearing with E-shaped structure |
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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: 20090722 Effective date of abandoning: 20080909 |