CN101123386B - Tangential-set magnet permanent synchronization motor - Google Patents
Tangential-set magnet permanent synchronization motor Download PDFInfo
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- CN101123386B CN101123386B CN2007101321438A CN200710132143A CN101123386B CN 101123386 B CN101123386 B CN 101123386B CN 2007101321438 A CN2007101321438 A CN 2007101321438A CN 200710132143 A CN200710132143 A CN 200710132143A CN 101123386 B CN101123386 B CN 101123386B
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- 230000005415 magnetization Effects 0.000 claims abstract description 16
- 238000004804 winding Methods 0.000 claims abstract description 15
- 230000004323 axial length Effects 0.000 claims abstract description 10
- 239000004020 conductor Substances 0.000 claims description 31
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 230000006698 induction Effects 0.000 abstract 1
- 230000005389 magnetism Effects 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 description 15
- 230000004907 flux Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010181 polygamy Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
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- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention provides a tangential steel magnet permanent magnetism synchro motor, which belongs to the permanent-magnet motors. The motor comprises a stator consisting of a stator core (1) and an armature winding (2), and a rotor consisting of a tangential magnetization permanent magnet (3), a North Pole magnetizer of the rotor (4), an S-pole magnetizer (5) of the rotor, a fixed cover (7) arranged on a driving end, a fixed cover (8) arranged on a non-driving end (8), an axis of rotation (6) and a bearing (9). The rotor and the stator are arranged in a front end cover (10), a back end cover (11) and an enclosure (12). The axial length of the tangential magnetization permanent magnet (3), the North Pole magnetizer of the rotor (4) and the S-pole magnetizer (5) of the rotor (5) is larger than the axial length of the stator core (1); the end connection length can be used effectively. Due to the axial magnetic concentration action of the rotor core, the air-gap induction of the motor is increased; and the power density of the permanent-magnet motor is further increased. The utility model is highly valuable in application in aerospace and civil occasions requiring high performance.
Description
Technical field
The present invention relates to a kind of tangential-set magnet permanent synchronization motor, belong to the permagnetic synchronous motor technical field.
Background technology
Synchronous machine mainly contains following several pattern:
1. electric excitation synchronous motor, this synchronous machine polygamy is put brush, slip-ring device, and reliability is relatively poor, and the life-span is short, the manufacture process requirement height, the cost height, maintenance is difficulty also;
2. rotating rectifier formula no-brush synchronous generator, though this generator good reliability, the power-weight ratio height, the rotor structure complexity, and also have diode on the rotor, rotor fault becomes the major failure of this motor;
3. brush-free claw-pole generator and Lun Teer generator, the common drawback of these two kinds of motors be, additional air gap is arranged, and effectively magnetic circuit is long, thereby power of motor density is lower, poor performance;
4. inductor generator, its major defect is that air-gap flux does not have alternation, the magnetic utilance is low, so power-weight ratio is low;
5. permagnetic synchronous motor, this synchronous machine places permanent magnet on the rotor can realize brushless structure, advantage with a series of uniquenesses, as efficient height, simple in structure etc., its major defect is can't demagnetization when output voltage is regulated difficulty and internal short circuit fault during as generator operation, magnetic difficulty a little less than the electric operation;
6. hybrid exciting synchronous motor, there are two magnetic potential sources in this motor, and the major part in motor gas-gap magnetic field is set up by permanent magnet, and the required changes of magnetic field of voltage-regulation partly realizes by the electric excitation winding of assisting.Compare with permagnetic synchronous motor, it has the ability of adjusting air gap flux density, but electric machine structure and Distribution of Magnetic Field are all comparatively complicated.
Along with the appearance and the motor technology development of high-performance rare-earth permanent-magnetic body, the permagnetic synchronous motor performance improves constantly, and has become the important development direction of Aero-Space civilian and of new generation, navigation usefulness motor at present.Permagnetic synchronous motor mainly is divided into diametrical magnetization structure and tangential magnetization configuration according to rotor permanent magnet direction of magnetization difference.The diametrical magnetization permagnetic synchronous motor is because of structure and processing technology is simple, field orientation is good, be widely used, and tangentially magnetize in the permagnetic synchronous motor every utmost point magnetic flux that two permanent magnet parallel connections provide motor, be magnet accumulating cap, can improve the air gap flux density of motor, make motor have higher power density, thereby this structure is applied in the contour performance of Aero-Space application scenario.It is comparatively complicated that but the major defect that tangentially magnetizes permagnetic synchronous motor is a processing technology, and magnetic leakage factor is bigger.
Summary of the invention
1) goal of the invention: the present invention proposes a kind of simple in structure, can further improve the close and power output of motor gas-gap magnetic and effectively utilize the tangential-set magnet permanent synchronization motor of armature winding termination partial-length.
2) technical scheme: tangential-set magnet permanent synchronization motor of the present invention comprises stator and rotor, and stator is identical with common synchronous machine, and the armature winding that is around in its groove by stator core and embedding constitutes, and stator core is formed by silicon steel plate stacking.Rotor is made up of tangential magnetization permanent magnet, rotor magnetic conductor and rotating shaft, permanent magnet and rotor magnetic conductor are alternately arranged, the permanent magnet polarity arrangement mode is N-S, S-N ..., N-S, S-N, polarity is identical on the rotor magnetic conductor that adjacent permanent magnet folds betwixt, makes adjacent two permanent magnet magnetic potentials parallel connection, provides every utmost point air-gap flux by the rotor magnetic conductor.Epitrochanterian permanent magnet and magnetic conductor are extended or extend to two ends respectively to an end, make its axial length be longer than stator core, but, be longer than the stator core axial length and must not exceed armature end-connections, elongated end is positioned under the stator armature winding termination portion, just effectively utilize armature winding termination portion length, because the extension magnet steel can form axial magnetic circuit by the magnetic conductor extension and relatively partly form radially magnetic circuit to stator and rotor cores again, thereby provide air-gap flux, further increase air gap flux density, be beneficial to and reduce motor volume weight.Epitrochanterian permanent magnet and magnetic conductor can steppedly extend, be the rotor diameter of elongated end rotor diameter less than relative part with stator core, can reduce stator armature winding overhang effect like this to the influence of rotor elongated end magnetic circuit, and two ends of rotor can utilize ring-type cup cover that permanent magnet and rotor magnetic conductor is fastening.
Tangential-set magnet permanent synchronization motor of the present invention has following beneficial features:
1. effectively utilize stator armature winding termination partial-length, under the prerequisite that does not increase the motor axial length, compare common cutting orientation structure magneto and can further increase air gap flux density, improve the motor power output, be specially adapted to the restricted application scenario of motor external diameter;
2. the armature end-connections effect is little to the influence of rotor elongated end magnetic circuit;
3. flexible design rotor magnetic conductor and magnet steel axial length and stator core axial length ratio can be regulated poly-magnetic effect, change the size of air gap flux density, satisfy different designs and require and the application scenario.
Description of drawings
Fig. 1 is a tangential-set magnet permanent synchronization motor structural representation of the present invention.
Fig. 2 is the tangential-set magnet permanent synchronization motor schematic cross-section.
Fig. 3 is permanent magnet and rotor N, S utmost point magnetizer structure schematic diagram.
Label declaration among Fig. 1～Fig. 3: 1, stator core; 2, armature winding; 3, tangentially magnetize permanent magnet; 4, rotor N utmost point magnetic conductor; 5, rotor S utmost point magnetic conductor; 6, rotating shaft; 7, driving end fixed cup cover; 8, non-transmision end fixed cup cover; 9, bearing; 10, front end housing; 11, rear end cap; 12, casing.
Embodiment
Tangential-set magnet permanent synchronization motor structure of the present invention as shown in Figure 1, stator is made of the armature winding 2 that stator core 1 and embedding are around in its groove, tangential magnetization permanent magnet 3 and rotor magnetic conductor are arranged on the rotor, rotor magnetic conductor material is the monoblock steel, tangential magnetization permanent magnet 3 and rotor magnetic conductor are alternately arranged, Fig. 2 is four pairs of electrode structures, the number and the motor number of pole-pairs of tangential certainly magnetization permanent magnet 3 can be more, polarity is identical on the adjacent permanent magnet rotor magnetic conductor betwixt, be the N utmost point or the S utmost point, for the magnetic conductor of the N utmost point is a rotor N utmost point magnetic conductor 4, for the magnetic conductor of the S utmost point is a rotor S utmost point magnetic conductor 5.The axial length of tangential magnetization permanent magnet 3 and rotor magnetic conductor is longer than stator core 1, the part that two ends grow is positioned under the armature winding termination portion, grow the part rotor diameter than little with stator core counterpart rotor diameter, tangential magnetization permanent magnet 3, rotor N utmost point magnetic conductor 4 and rotor S utmost point magnetic conductor 5 structures are as shown in Figure 3, tangential magnetization permanent magnet 3, the structure of rotor N utmost point magnetic conductor 4 and rotor S utmost point magnetic conductor 5 as shown in Figure 3, tangential magnetization permanent magnet 3 and rotor magnetic conductor two ends are loaded on the rotating shaft 6 after utilizing driving end fixed cup cover 7 and non-transmision end fixed cup cover 8 fastening respectively, said structure is installed on casing 12, within front end housing 10 and the rear end cap 11, front end housing 10, between rear end cap 11 and the rotating shaft 6 bearing 9 is arranged.
Claims (1)
1. tangential-set magnet permanent synchronization motor, comprise stator core (1), armature winding (2), tangentially magnetize permanent magnet (3), rotor N utmost point magnetic conductor (4), rotor S utmost point magnetic conductor (5), rotating shaft (6), driving end fixed cup cover (7), non-transmision end fixed cup cover (8), bearing (9), front end housing (10), rear end cap (11) and casing (12), wherein armature winding (2) embedding is around in and constitutes motor stator in stator core (1) groove; Tangential magnetization permanent magnet (3), rotor N utmost point magnetic conductor (4), rotor S utmost point magnetic conductor (5) are with driving end fixed cup cover (7) and non-transmision end fixed cup cover (8) is fastening is loaded in the rotating shaft (6) the formation rotor; Described motor stator and rotor are installed in the casing (12), casing (12) two ends are installed front end housing (10) and rear end cap (11) respectively, front end housing (10) and rear end cap (11) are installed in the rotating shaft (6) by bearing (9) respectively, it is characterized in that, tangential magnetization permanent magnet (3) and rotor N utmost point magnetic conductor (4), rotor S utmost point magnetic conductor (5) Xiang Yiduan extends or extends to two ends respectively, make its axial length exceed the axial length of stator core (1), the length that exceeds or not armature winding (2) outer end, elongated end is positioned under the armature winding termination portion, grows the part rotor diameter than little with stator core counterpart rotor diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101321438A CN101123386B (en) | 2007-09-24 | 2007-09-24 | Tangential-set magnet permanent synchronization motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101321438A CN101123386B (en) | 2007-09-24 | 2007-09-24 | Tangential-set magnet permanent synchronization motor |
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| Publication Number | Publication Date |
|---|---|
| CN101123386A CN101123386A (en) | 2008-02-13 |
| CN101123386B true CN101123386B (en) | 2010-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101321438A Active CN101123386B (en) | 2007-09-24 | 2007-09-24 | Tangential-set magnet permanent synchronization motor |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103171417A (en) * | 2011-12-26 | 2013-06-26 | 上海大郡动力控制技术有限公司 | Traction device provided with internally-installed double clutches and used for electrically driven automobile |
| CN102769366B (en) * | 2012-03-05 | 2013-08-14 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent magnet assisted synchronous reluctance motor, motor installation method and compressor with permanent magnet assisted synchronous reluctance motor |
| CN102769367B (en) * | 2012-03-05 | 2013-08-14 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent magnet assisted synchronous reluctance motor and installation method thereof |
| CN103715855A (en) * | 2013-11-30 | 2014-04-09 | 浙江京马电机有限公司 | Magnetic ring-free structure motor |
| TWI679658B (en) * | 2015-03-24 | 2019-12-11 | 日商日東電工股份有限公司 | Rare earth permanent magnet and rotating machine with rare earth permanent magnet |
| TWI751968B (en) * | 2015-03-24 | 2022-01-11 | 日商日東電工股份有限公司 | Sintered body for forming rare earth permanent magnet and rotating electrical machine with rare earth permanent magnet |
| CN105186818A (en) * | 2015-09-14 | 2015-12-23 | 常州市普世汽车电动***有限公司 | Permanent magnet synchronous motor with hybrid magnetic circuit arrangement |
| US10186917B2 (en) | 2016-05-24 | 2019-01-22 | Unison Industries, Llc | Rotor assembly for a power generation system |
| CN106253522A (en) * | 2016-08-26 | 2016-12-21 | 上海富田电气技术有限公司 | A kind of tangential magnet-steel structure axial magnetic field high torque density permanent magnet disc motor |
| CN109038880A (en) * | 2018-08-20 | 2018-12-18 | 重庆力华自动化技术有限责任公司 | A kind of poly- magnetic-synchro motor of efficient ferrite |
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- 2007-09-24 CN CN2007101321438A patent/CN101123386B/en active Active
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