CN201409068Y - Flux motor with hybrid excitation switch - Google Patents
Flux motor with hybrid excitation switch Download PDFInfo
- Publication number
- CN201409068Y CN201409068Y CN2009201203756U CN200920120375U CN201409068Y CN 201409068 Y CN201409068 Y CN 201409068Y CN 2009201203756 U CN2009201203756 U CN 2009201203756U CN 200920120375 U CN200920120375 U CN 200920120375U CN 201409068 Y CN201409068 Y CN 201409068Y
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- China
- Prior art keywords
- permanent magnet
- casing
- winding
- magnetic
- excitation switch
- Prior art date
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- Expired - Fee Related
Links
- 230000005284 excitation Effects 0.000 title claims abstract description 32
- 230000004907 flux Effects 0.000 title abstract description 9
- 238000004804 winding Methods 0.000 claims abstract description 35
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000696 magnetic material Substances 0.000 claims abstract description 7
- 239000002131 composite material Substances 0.000 claims description 15
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 4
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims description 4
- 238000003475 lamination Methods 0.000 claims description 4
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 4
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 claims description 4
- 229910000859 α-Fe Inorganic materials 0.000 claims description 4
- 210000003456 pulmonary alveoli Anatomy 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 210000000515 tooth Anatomy 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model discloses a flux motor with a hybrid excitation switch, which comprises a rotor, a stator, a three-phrase armature winding, a single-phrase excitation winding and a casing. The casing is made of magnetic material; the stator fixed in the casing comprises a U-shaped iron core and a first PM which are sequentially arranged; the first PM carries out tangential magnetizing along thecircumference and the N poles and the S poles thereof are alternatively arranged; a second PM is arranged between the casing and the stator; the second PM carries out magnetizing along the radius andthe N poles and the S poles thereof are alternatively arranged; the contact surfaces of the U-shaped core and the first PM, as well as the U-shaped core and the second PM have identical polarity; an armature tooth is formed by the first PM and the edges of the U-shaped core clinging to two sides of the first PM; the three-phrase concentrated winding is wound on the armature tooth; and the single-phrase excitation winding is wound on the second PM. The air gap magnetic field of the flux motor provided by the utility model is adjustable; and the flux motor can avoid magnetic leakage at the outeredge of the casing, and improves the anti-electromagnetic interference of the motor and EMC capacity, as well as the PM utilization rate.
Description
Technical field
The utility model relates to the field switch flux linkage motor.
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.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, leakage field causes the permanent magnet utilance not high on the one hand, has also caused electromagnetic interference and electromagnetic compatibility problem on the other hand, has also limited motor case simultaneously and must adopt non-magnet_conductible material.
Summary of the invention
The purpose of this utility model is to propose the composite excitation switch magnetic-linkage motor that a kind of air-gap field is adjustable, improve brow leakage.
Composite excitation switch magnetic-linkage motor of the present utility model, comprise rotor, stator, the threephase armature winding, single-phase excitation winding and casing, casing is a permeability magnetic material, rotor is made of the Alveolus type core lamination, the stator that is fixed in the casing comprises unshakable in one's determination and first permanent magnet of " U " shape that is arranged in order, first permanent magnet is along the circumference cutting orientation magnetizing, the N utmost point, the S utmost point is alternately arranged, and places second permanent magnet between " U " shape base unshakable in one's determination and casing, and second permanent magnet magnetizes along radial direction, the N utmost point, the S utmost point is alternately arranged, identical with the polarity of second permanent magnet on contact-making surface with first permanent magnet of " U " shape contact unshakable in one's determination, armature tooth is made of first permanent magnet and " U " shape that is close to first permanent magnet both sides limit unshakable in one's determination, and the threephase armature winding is for concentrating winding, on armature tooth, constitute cavity between adjacent ' U ' shape base fillet unshakable in one's determination and the casing, single-phase excitation winding is for concentrating winding, on second permanent magnet.
Above-mentioned rotor and " U " shape iron core are formed by silicon steel plate packing.Said " U " opening unshakable in one's determination is standard-sized sheet mouth or half opening.Said casing is rolled into by steel plate or is formed by silicon steel plate packing.
First permanent magnet in the utility model is neodymium iron boron, SmCo or the ferrite of parallel magnetization.Second permanent magnet is neodymium iron boron, SmCo or the ferrite of parallel magnetization or radial magnetizing.
The utility model can be settled magnetic conduction sheet respectively in the second permanent magnet both sides, and an end of magnetic conduction sheet props up casing, and the other end props up the base of " U " shape iron core.Like this, magnetic conduction sheet constitutes corresponding parallel circuits, under same exciting current condition, can obtain better to regulate the effect of air-gap field.
Above-mentioned magnetic conduction sheet can be an integral body with " U " shape iron core; Perhaps magnetic conduction sheet can be an integral body with casing.
During work, the threephase armature winding of composite excitation switch magnetic-linkage motor 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 threephase armature winding loading frequency 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.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.Adjusting by to exciting current direction and size realizes the adjusting to the synthetic air-gap field of motor, thereby regulates the motor speed of service, torque etc., is fit to the needs of different occasions.
The beneficial effects of the utility model:
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. casing adopts permeability magnetic material, can avoid the not outer leakage field of magnetic conduction casing existence fully, improves anti-electromagnetic interference of motor and Electromagnetic Compatibility, improves the permanent magnet utilance.
3. permanent magnet and winding all place on the stator, are easy to heat radiation, cooling, improve power density.
Description of drawings
Fig. 1 is a kind of structural representation of composite excitation switch magnetic-linkage motor, and the direction of arrow is the permanent magnet magnetizing direction among the figure;
Fig. 2 is the structural representation of another kind of composite excitation switch magnetic-linkage motor, and the direction of arrow is the permanent magnet magnetizing direction among the figure.
Embodiment
With reference to Fig. 1, composite excitation switch magnetic-linkage motor comprises rotor 1, stator 2, threephase armature winding 3, single-phase excitation winding 4 and casing 5, casing is a permeability magnetic material, rotor is made of the Alveolus type core lamination, the stator that is fixed in the casing comprises " U " shape that is arranged in order 2.1 and first permanent magnet 2.2 unshakable in one's determination, first permanent magnet is along the circumference cutting orientation magnetizing, the N utmost point, the S utmost point is alternately arranged, and places second permanent magnet, 2.3, the second permanent magnets and magnetize along radial direction between " U " shape base unshakable in one's determination and casing, the N utmost point, the S utmost point is alternately arranged, identical with the polarity of second permanent magnet on contact-making surface with first permanent magnet of " U " shape contact unshakable in one's determination, armature tooth is made of first permanent magnet 2.2 and " U " shape that is close to first permanent magnet both sides limit unshakable in one's determination, and threephase armature winding 3 is for concentrating winding, on armature tooth, constitute cavity 6 between adjacent ' U ' shape base fillet unshakable in one's determination and the casing, single-phase excitation winding 4 is for concentrating winding, on second permanent magnet.Legend, rotor have 10 teeth, and stator has 12 armature tooths that are wound with the threephase armature winding, 12 magnet exciting coils.
Shown in Figure 2, be mounted with magnetic conduction sheet 2.4 respectively in second permanent magnet, 2.3 both sides, an end of magnetic conduction sheet props up casing, and the other end props up the base of " U " shape iron core 2.1.Magnetic conduction sheet can be an integral body with " U " shape iron core; Can be an integral body perhaps with casing.
Like this, magnetic conduction sheet constitutes corresponding parallel circuits, under same exciting current condition, can obtain better to regulate the effect of air-gap field.
Claims (8)
1. composite excitation switch magnetic-linkage motor, it is characterized in that comprising rotor (1), stator (2), threephase armature winding (3), single-phase excitation winding (4) and casing (5), casing is a permeability magnetic material, rotor is made of the Alveolus type core lamination, the stator that is fixed in the casing comprises " U " shape iron core (2.1) and first permanent magnet (2.2) that is arranged in order, first permanent magnet is along the circumference cutting orientation magnetizing, the N utmost point, the S utmost point is alternately arranged, between " U " shape base unshakable in one's determination and casing, place second permanent magnet (2.3), second permanent magnet magnetizes along radial direction, the N utmost point, the S utmost point is alternately arranged, identical with first permanent magnet of " U " shape contact unshakable in one's determination with the polarity of second permanent magnet on contact-making surface, armature tooth is made of first permanent magnet (2.2) and " U " shape limit unshakable in one's determination of being close to the first permanent magnet both sides, threephase armature winding (3) is for concentrating winding, on armature tooth, constitute cavity (6) between adjacent ' U ' shape base fillet unshakable in one's determination and the casing, single-phase excitation winding (4) is for concentrating winding, on second permanent magnet.
2. composite excitation switch magnetic-linkage motor according to claim 1 is characterized in that said rotor (1) and " U " shape iron core (2.1) are formed by silicon steel plate packing.
3. composite excitation switch magnetic-linkage motor according to claim 1 is characterized in that neodymium iron boron, SmCo or the ferrite of said first permanent magnet (2.2) for magnetizing.
4. composite excitation switch magnetic-linkage motor according to claim 1 is characterized in that neodymium iron boron, SmCo or the ferrite of said second permanent magnet (2.3) for magnetizing.
5. composite excitation switch magnetic-linkage motor according to claim 1 is characterized in that said " U " opening unshakable in one's determination is standard-sized sheet mouth or half opening.
6. composite excitation switch magnetic-linkage motor according to claim 1 is characterized in that said casing (5) is rolled into by steel plate or is formed by silicon steel plate packing.
7. composite excitation switch magnetic-linkage motor according to claim 1 is characterized in that settling magnetic conduction sheet (2.4) respectively in second permanent magnet (2.3) both sides, and an end of magnetic conduction sheet (2.4) props up casing, and the other end props up the base of " U " shape iron core (2.1).
8. composite excitation switch magnetic-linkage motor according to claim 7 is characterized in that magnetic conduction sheet (2.4) and " U " shape iron core (2.1) are an integral body; Perhaps magnetic conduction sheet and casing are an integral body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201203756U CN201409068Y (en) | 2009-05-14 | 2009-05-14 | Flux motor with hybrid excitation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201203756U CN201409068Y (en) | 2009-05-14 | 2009-05-14 | Flux motor with hybrid excitation switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201409068Y true CN201409068Y (en) | 2010-02-17 |
Family
ID=41680015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201203756U Expired - Fee Related CN201409068Y (en) | 2009-05-14 | 2009-05-14 | Flux motor with hybrid excitation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201409068Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199661A (en) * | 2013-04-25 | 2013-07-10 | 东南大学 | Built-in permanent magnet memory motor of magnetic flux switching type |
| CN103490532A (en) * | 2013-09-18 | 2014-01-01 | 东南大学 | Fault-tolerant type stator segmentation flux switching memory motor |
-
2009
- 2009-05-14 CN CN2009201203756U patent/CN201409068Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199661A (en) * | 2013-04-25 | 2013-07-10 | 东南大学 | Built-in permanent magnet memory motor of magnetic flux switching type |
| CN103490532A (en) * | 2013-09-18 | 2014-01-01 | 东南大学 | Fault-tolerant type stator segmentation flux switching memory motor |
| CN103490532B (en) * | 2013-09-18 | 2015-11-18 | 东南大学 | A kind of error-tolerance type stator partition type Magneticflux-switching type memory electrical machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100217 Termination date: 20110514 |