CN103427510A - Concentrated-winding motor, generator and motor - Google Patents
Concentrated-winding motor, generator and motor Download PDFInfo
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- CN103427510A CN103427510A CN2012101531386A CN201210153138A CN103427510A CN 103427510 A CN103427510 A CN 103427510A CN 2012101531386 A CN2012101531386 A CN 2012101531386A CN 201210153138 A CN201210153138 A CN 201210153138A CN 103427510 A CN103427510 A CN 103427510A
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- 238000004804 winding Methods 0.000 title claims abstract description 71
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 55
- 239000010959 steel Substances 0.000 claims abstract description 55
- 239000012141 concentrate Substances 0.000 claims description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 239000000463 material Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 6
- 239000011295 pitch Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The invention relates to concentrated-winding permangent magnet motors, in particular to a concentrated-winding motor, a generator and a motor. Magnets adhere to a rotor yoke of the concentrated-winding motor, wherein the distance between every two steel magnets is Sm, the N poles of the steel magnets and the S poles of the steel magnets are distributed alternately, and the number of the steel magnets is 2P. A stator core is provided with Z grooves and Z stator teeth, the width Sc of a notch between every two adjacent stator teeth of the concentrated-winding motor and the distance Sm between every two adjacent steel magnets meet the constraint relationship Sm/Sc=(0.83-1.3), and the ratio of the width of each steel magnet to the pole pitch tau of each steel magnet meets the constraint relationship taum/tau >=(0.75-0.9), wherein the pole pitch tau is equal to 360 degrees/2P, and P is the number of pole pairs of the motor. According to the concentrated-winding motor, the interval-adhering type steel magnets are adopted, materials are saved, an air-gap magnetic field is good in sine, the location torque of the motor is small, and the notches of the motor can fully meet the requirements of direct full-automatic winding.
Description
Technical field
The present invention relates to concentrate the magneto of winding, be specifically related to a kind of concentrated winding electric machine, generator and motor.
Background technology
The rotor of magneto generally adopts rare-earth permanent magnet, for example Nd-Fe-B permanent magnet.Rare-earth permanent magnet material is just more and more rare, and price is more and more expensive, therefore the essential utilance that reduces the consumption of permanent magnet and improve permanent magnet.
The magneto of concentrated winding can improve the energy index of magneto significantly, such as: winding utilization, efficiency, power to volume ratio, moment volume ratio etc., and improve motor manufacturing technology.
Yet, the location torque problem of concentrating winding permanent magnet motor that remains bigger than normal, preferably number of magnetic poles coordinates and can suppress location torque with the teeth groove number, thereby makes to concentrate the possibility of winding permanent magnet motor considerably less.Patent of invention ZL200780009121.0, propose a kind of large, medium and small tooth stator structure and suppress location torque; ZL200920204762.8 proposes preferably number of magnetic poles and coordinates to suppress location torque with the teeth groove number of large and small tooth; The essential piece structure that adopts of the stator punching of these class methods, after the piece coiling, then be assembled into stator body, or little tooth taken off to rear coiling, less tooth is assembled up.These methods all can't realize direct Full-automatic coiling, have increased the risk that process costs and fabrication error bring.
Concentrate the magneto of winding and the magneto ratio of traditional distributed winding, the teeth groove number of stator has at least lacked 3 times, be also, the groove number of concentrated winding permanent magnet motor is few and slot pitch is very large, can simplify motor manufacturing technology, but therefore also make and concentrate winding permanent magnet motor to lose to adopt an oblique slot pitch effectively to suppress possibility of location torque because the mechanical angle of the concentrated oblique slot pitch of winding permanent magnet motor and electrical degree all too is large.Therefore traditional distributed winding magneto suppresses the effective measures of location torque, and concentrated winding permanent magnet motor can not adopt, and concentrates a winding permanent magnet motor location torque large problem that remains bigger than normal.
Summary of the invention
In view of this, the invention provides a kind of concentrated winding electric machine, generator and motor, it is mounted magnet steel between adopting, saved material, utilize the numerical optimization in magnetic steel gap and notch gap to coordinate to improve the location torque frequency, suppress the location torque amplitude, the air-gap field sine is good, the location torque of motor is less, and motor slot can fully meet the requirement of direct Full-automatic coiling.
The invention provides a kind of concentrated winding electric machine, post spacing on its rotor yoke 2P piece N that is Sm, the magnet steel that S polarity distributes alternately, stator core is provided with Z groove and Z stator tooth, the size of width of rebate Sc between two adjacent stators teeth of described concentrated winding electric machine and the interval S m of two blocks of adjacent magnet steel, meet restriction relation: Sm/Sc=(0.83～1.3); The width τ m of magnet steel and the ratio of pole span τ meet restriction relation: τ m/ τ >=(0.75～0.9), and pole span τ=360 °/2P wherein, P is the magnetic pole logarithm of motor.
According to concentrated winding electric machine of the present invention, described stator core is straight trough, and the notch of described stator core prolongs iron mandrel to the certain mechanical angle of symmetrical deflection, deviation angle is kT σ, T σ=360/(2P * Z/c wherein), c is the greatest common divisor of 2P * Z, and the span of k is k=(1～10).
According to concentrated winding electric machine of the present invention, described motor is that internal rotor concentrates winding electric machine or external rotor to concentrate winding electric machine.
According to concentrated winding electric machine of the present invention, described motor is that internal rotor is concentrated winding electric machine, motor pole number 2P=10, groove is counted Z=12, width of rebate Sc=3.5mm, the interval S m=3.2mm of two blocks of adjacent magnet steel, Sm/Sc=0.914, described deviation angle is kT σ, wherein T σ=360/(2P * Z/c)=360/(10 * 12/2)=6, k=1.
According to concentrated winding electric machine of the present invention, described motor is that external rotor is concentrated winding electric machine, motor pole number 2P=40, groove is counted Z=36, width of rebate Sc=2.9mm, the interval S m=3.2mm of two blocks of adjacent magnet steel, Sm/Sc=1.103, described deviation angle is kT σ, wherein T σ=360/(2P * Z/c)=360/(40 * 36/4)=1, k=2.5.
The present invention also provides a kind of generator, post spacing on the rotor yoke of the described generator 2P piece N that is Sm, the magnet steel that S polarity distributes alternately, stator core is provided with Z groove and Z stator tooth, the size of width of rebate Sc between two adjacent stators teeth of described generator and the interval S m of two blocks of adjacent magnet steel, meet restriction relation: Sm/Sc=(0.83～1.3); The width τ m of magnet steel and the ratio of pole span τ meet restriction relation: τ m/ τ >=(0.75～0.9), and pole span τ=360 °/2P wherein, P is the magnetic pole logarithm of motor.
According to generator of the present invention, described stator core is straight trough, and the notch of described stator core prolongs iron mandrel to the certain mechanical angle of symmetrical deflection, deviation angle is kT σ, T σ=360/(2P * Z/c wherein), c is the greatest common divisor of 2P * Z, and the span of k is k=(1～10).
According to generator of the present invention, described generator is that internal rotor concentrates winding generator or external rotor to concentrate winding generator.
The present invention also provides a kind of motor, post spacing on the rotor yoke of the described motor 2P piece N that is Sm, the magnet steel that S polarity distributes alternately, stator core is provided with Z groove and Z stator tooth, the size of width of rebate Sc between two adjacent stators teeth of described motor and the interval S m of two blocks of adjacent magnet steel, meet restriction relation: Sm/Sc=(0.83～1.3); The width τ m of magnet steel and the ratio of pole span τ meet restriction relation: τ m/ τ >=(0.75～0.9), and pole span τ=360 °/2P wherein, P is the magnetic pole logarithm of motor.
According to motor of the present invention, described stator core is straight trough, and the notch of described stator core prolongs iron mandrel to the certain mechanical angle of symmetrical deflection, deviation angle is kT σ, T σ=360/(2P * Z/c wherein), c is the greatest common divisor of 2P * Z, and the span of k is k=(1～10).
Between concentrated winding electric machine of the present invention adopts, mounted magnet steel is saved magnet steel, the size of width of rebate Sc between concentrated two teeth of winding electric machine stator and the interval S m of two blocks of adjacent magnet steel, meet restriction relation: Sm/Sc=(0.83～1.3), different from the design concept of traditional magneto, traditional Design of PM Motor thinks that the less location torque of interval S m of width of rebate Sc and magnet steel is just less.The present invention is by strengthening and utilize the sudden change of two edge magnetic resistance of sudden change, the notch of two edge magnetic field intensitys of magnet steel spacing, under both interact, the frequency of location torque is doubled.In general, harmonic frequency doubles, and harmonic amplitude at least reduces one times, so the present invention improved the location torque frequency, can suppress the location torque amplitude.It is given that the width of rebate Sc of while motor can artificially be designed institute, thereby motor slot can fully meet the requirement of direct Full-automatic coiling.The width τ m of magnet steel and the ratio of pole span τ, meet restriction relation: τ m/ τ >=(0.75～0.9), pole span τ=360 °/2P wherein, P is the magnetic pole logarithm of motor, thereby can select the magnet steel consumption of motor, make to concentrate the magnetic field sine of winding electric machine optimised, can holding torque constant.Whereby, mounted magnet steel between the present invention adopts, saved material, utilize the numerical optimization in magnetic steel gap and notch gap to coordinate to improve the location torque frequency, suppress the location torque amplitude, the air-gap field sine is good, and the location torque of motor is less, and motor slot can fully meet the requirement of direct Full-automatic coiling.
Preferably, described stator core is straight trough, and the notch of described stator core prolongs iron mandrel to the certain mechanical angle of symmetrical deflection, deviation angle is kT σ, T σ=360/(2P * Z/c wherein), c is the greatest common divisor of 2P * Z, and the span of k is k=(1～10).The k value is larger in general, by notch, is offset the impact of homogenizing notch more obvious, is also that the effect of homogenizing location torque is more obvious.Thereby can pass through the frequency multiplication location torque, then be offset notch, double with regard to the value that is equivalent to k, make and concentrate the less effect that just can obtain desirable inhibition location torque of winding electric machine notch skew.Simultaneously, adopt the stator core of straight trough skew notch form to be convenient to automatic winding.
The accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, in below describing embodiment, the accompanying drawing of required use is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 the present invention concentrates the stator punching of a kind of embodiment of winding electric machine and the partial schematic diagram of rotor;
Fig. 2 is the local expansion schematic diagram that the notch of concentrated winding electric machine in Fig. 1 is offset 0.25 stator slot distance;
Fig. 3 is that the present invention concentrates the stator punching of another embodiment of winding electric machine and the partial schematic diagram of rotor;
Fig. 4 is the three-dimensional view that the present invention concentrates the stator of the another embodiment of winding electric machine;
Fig. 5 concentrates the front view of the stator of winding electric machine in Fig. 4.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment obtained, belong to the scope of protection of the invention.
As shown in Figure 1, a kind of concentrated winding electric machine 100 of the present invention, post spacing on its rotor yoke 10 2P piece N that is Sm, the magnet steel 20 that S polarity distributes alternately, stator core 30 is provided with Z groove 31 and Z stator tooth 32.From traditional theory analysis and experiment, the cycle of the location torque of the magneto that this number of poles and groove number coordinate is: T σ=360/(2P * Z/c), c is the greatest common divisor of 2P * Z.Should concentrate winding electric machine 100 to can be used as high-performance servomotor, torque motor, motor in electric automobile and direct wind-driven generator.
Wherein, the size of the width of rebate Sc between two adjacent stators teeth 32 of concentrated winding electric machine 100 and the interval S m of two blocks of adjacent magnet steel 20, meet restriction relation: Sm/Sc=(0.83～1.3).This design concept from traditional magneto is different, and traditional Design of PM Motor thinks that the less location torque of the interval S m of width of rebate Sc and magnet steel is just less.The present invention is by strengthening and utilize the sudden change of two edge magnetic resistance of sudden change, the notch of two edge magnetic field intensitys of magnet steel spacing, under both interact, the frequency of location torque is doubled.In general, harmonic frequency doubles, and harmonic amplitude at least reduces one times.Therefore the present invention has improved the location torque frequency, can suppress the location torque amplitude.It is given that the width of rebate Sc of while motor can artificially be designed institute, thereby motor slot can fully meet the requirement of direct Full-automatic coiling.
The width τ m of magnet steel 20 and the ratio of pole span τ meet restriction relation: τ m/ τ >=(0.75～0.9), and pole span τ=360 °/2P wherein, P is the magnetic pole logarithm of motor.Thereby can select the magnet steel consumption of motor, simultaneously, make to concentrate the magnetic field sine of winding electric machine optimised, can holding torque constant.Whereby, by the concentrated winding electric machine of above-mentioned two constraintss design, the air-gap field sine is good, and the location torque of motor is smaller.
Preferably, as shown in Figure 2, in order further to suppress location torque, under the prerequisite that keeps the stator core straight trough, iron mandrel is prolonged to the certain mechanical angle of symmetrical deflection in the position of stator core notch, and deviation angle is kT σ, wherein T σ=360/(2P * Z/c), c is the greatest common divisor of 2P * Z, and the span of k is k=(1～10).The k value is larger in general, by notch, is offset the impact of homogenizing notch more obvious, is also that the effect of homogenizing location torque is more obvious.The present invention first passes through the frequency multiplication location torque, then is offset notch, with regard to the value that is equivalent to k, doubles.Thereby make, concentrate the notch that winding electric machine is little to be offset the effect that just can obtain desirable inhibition location torque.As shown in Figure 2, when the present invention gets K=1, actual notch side-play amount D is at 0.25 stator slot apart from left and right, and the effect that suppresses location torque is just very obvious.And tradition is concentrated winding electric machine skewed slot 0.25 slot pitch, the effect that suppresses location torque is just very limited, and skewed slot 1.0 slot pitches are unfeasible.
Concentrated winding electric machine 100 of the present invention can be concentrated winding electric machine or external rotor as shown in Figure 3 for internal rotor as shown in Figure 1 and concentrate winding electric machine.
In Fig. 1, concentrating winding electric machine 100 is that 10 utmost point 12 groove internal rotors are concentrated winding electric machine, and notch is offset 0.25 stator slot distance.Motor pole number 2P=10, groove is counted Z=12, width of rebate Sc=3.5mm, the interval S m=3.2mm of two blocks of adjacent magnet steel, Sm/Sc=0.914, deviation angle is kT σ, wherein T σ=360/(2P * Z/c)=360/(10 * 12/2)=6, k=1 got.
As shown in Figure 3, concentrating winding electric machine 100 is that 40 utmost point 36 groove external rotors are concentrated winding electric machine, and notch is offset 0.25 stator slot distance.Motor pole number 2P=40, groove is counted Z=36, width of rebate Sc=2.9mm, the interval S m=3.2mm of two blocks of adjacent magnet steel, Sm/Sc=1.103, deviation angle is kT σ, wherein T σ=360/(2P * Z/c)=360/(40 * 36/4)=1, k=2.5 got.
Fig. 4 is the stator stereogram of another kind of 10 utmost point 12 groove inner rotor motors, and the notch of this inner rotor motor is offset 0.25 stator slot distance, and its stator slot shape from inner rotor motor in Fig. 1 is different, and Fig. 5 is the front view of the stator of inner rotor motor in Fig. 4.
The present invention also provides a kind of generator, post spacing on the rotor yoke of the generator 2P piece N that is Sm, the magnet steel that S polarity distributes alternately, stator core is provided with Z groove and Z stator tooth, the size of width of rebate Sc between two adjacent stators teeth of generator and the interval S m of two blocks of adjacent magnet steel, meet restriction relation: Sm/Sc=(0.83～1.3); The width τ m of magnet steel and the ratio of pole span τ meet restriction relation: τ m/ τ >=(0.75～0.9), and pole span τ=360 °/2P wherein, P is the magnetic pole logarithm of motor.Stator core is straight trough, and the notch of stator core prolongs iron mandrel to the certain mechanical angle of symmetrical deflection, and deviation angle is kT σ, wherein T σ=360/(2P * Z/c), c is the greatest common divisor of 2P * Z, the span of k is k=(1～10).
The present invention also provides a kind of motor, post spacing on the rotor yoke of the motor 2P piece N that is Sm, the magnet steel that S polarity distributes alternately, stator core is provided with Z groove and Z stator tooth, the size of width of rebate Sc between two adjacent stators teeth of motor and the interval S m of two blocks of adjacent magnet steel, meet restriction relation: Sm/Sc=(0.83～1.3); The width τ m of magnet steel and the ratio of pole span τ meet restriction relation: τ m/ τ >=(0.75～0.9), and pole span τ=360 °/2P wherein, P is the magnetic pole logarithm of motor.Stator core is straight trough, and the notch of stator core prolongs iron mandrel to the certain mechanical angle of symmetrical deflection, and deviation angle is kT σ, wherein T σ=360/(2P * Z/c), c is the greatest common divisor of 2P * Z, the span of k is k=(1～10).
Applied specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention simultaneously.
Claims (10)
1. a concentrated winding electric machine, post spacing on its rotor yoke 2P piece N that is Sm, the magnet steel that S polarity distributes alternately, stator core is provided with Z groove and Z stator tooth, it is characterized in that, the size of width of rebate Sc between two adjacent stators teeth of described concentrated winding electric machine and the interval S m of two blocks of adjacent magnet steel, meet restriction relation: Sm/Sc=(0.83～1.3); The width τ m of magnet steel and the ratio of pole span τ meet restriction relation: τ m/ τ >=(0.75～0.9), and pole span τ=360 °/2P wherein, P is the magnetic pole logarithm of motor.
2. concentrated winding electric machine according to claim 1, it is characterized in that, described stator core is straight trough, and the notch of described stator core prolongs iron mandrel to the certain mechanical angle of symmetrical deflection, deviation angle is kT σ, T σ=360/(2P * Z/c wherein), c is the greatest common divisor of 2P * Z, and the span of k is k=(1～10).
3. concentrate according to claim 2 winding electric machine, it is characterized in that, described motor is that internal rotor concentrates winding electric machine or external rotor to concentrate winding electric machine.
4. concentrate according to claim 3 winding electric machine, it is characterized in that, described motor is that internal rotor is concentrated winding electric machine, motor pole number 2P=10, and groove is counted Z=12, width of rebate Sc=3.5mm, the interval S m=3.2mm of two blocks of adjacent magnet steel, Sm/Sc=0.914, described deviation angle is kT σ, T σ=360/(2P * Z/c wherein)=360/(10 * 12/2)=6, k=1.
5. concentrate according to claim 3 winding electric machine, it is characterized in that, described motor is that external rotor is concentrated winding electric machine, motor pole number 2P=40, and groove is counted Z=36, width of rebate Sc=2.9mm, the interval S m=3.2mm of two blocks of adjacent magnet steel, Sm/Sc=1.103, described deviation angle is kT σ, T σ=360/(2P * Z/c wherein)=360/(40 * 36/4)=1, k=2.5.
6. a generator, post spacing on the rotor yoke of the described generator 2P piece N that is Sm, the magnet steel that S polarity distributes alternately, stator core is provided with Z groove and Z stator tooth, it is characterized in that, the size of width of rebate Sc between two adjacent stators teeth of described generator and the interval S m of two blocks of adjacent magnet steel, meet restriction relation: Sm/Sc=(0.83～1.3); The width τ m of magnet steel and the ratio of pole span τ meet restriction relation: τ m/ τ >=(0.75～0.9), and pole span τ=360 °/2P wherein, P is the magnetic pole logarithm of motor.
7. generator according to claim 6, it is characterized in that, described stator core is straight trough, and the notch of described stator core prolongs iron mandrel to the certain mechanical angle of symmetrical deflection, deviation angle is kT σ, T σ=360/(2P * Z/c wherein), c is the greatest common divisor of 2P * Z, and the span of k is k=(1～10).
8. generator according to claim 6, is characterized in that, described generator is that internal rotor concentrates winding generator or external rotor to concentrate winding generator.
9. a motor, post spacing on the rotor yoke of the described motor 2P piece N that is Sm, the magnet steel that S polarity distributes alternately, stator core is provided with Z groove and Z stator tooth, it is characterized in that, the size of width of rebate Sc between two adjacent stators teeth of described motor and the interval S m of two blocks of adjacent magnet steel, meet restriction relation: Sm/Sc=(0.83～1.3); The width τ m of magnet steel and the ratio of pole span τ meet restriction relation: τ m/ τ >=(0.75～0.9), and pole span τ=360 °/2P wherein, P is the magnetic pole logarithm of motor.
10. motor according to claim 9, it is characterized in that, described stator core is straight trough, and the notch of described stator core prolongs iron mandrel to the certain mechanical angle of symmetrical deflection, deviation angle is kT σ, T σ=360/(2P * Z/c wherein), c is the greatest common divisor of 2P * Z, and the span of k is k=(1～10).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210153138.6A CN103427510B (en) | 2012-05-17 | 2012-05-17 | A kind of concentratred winding motor, generator and motor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210153138.6A CN103427510B (en) | 2012-05-17 | 2012-05-17 | A kind of concentratred winding motor, generator and motor |
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| CN103427510A true CN103427510A (en) | 2013-12-04 |
| CN103427510B CN103427510B (en) | 2016-01-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896867A (en) * | 2016-05-31 | 2016-08-24 | 德州杰诺新能源有限公司 | Permanent magnet motor of super-efficient 10-pole 12-slot magnetic steel built-in line-styled rotor structure |
| CN109565231A (en) * | 2016-08-05 | 2019-04-02 | 日本电产株式会社 | Stator core and motor |
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| CN1613172A (en) * | 2003-04-11 | 2005-05-04 | 三菱电机株式会社 | Permanent magnetic motor |
| JP2005261188A (en) * | 2004-02-09 | 2005-09-22 | Mitsubishi Materials Corp | Core for rotating machine and rotating machine |
| JP2007060800A (en) * | 2005-08-24 | 2007-03-08 | Jtekt Corp | Armature core and motor |
| CN101375484A (en) * | 2006-01-24 | 2009-02-25 | 株式会社安川电机 | Divided core for motor stator, motor stator using it, permanent magnetic type synchronous motor, and punching method using punching mold for divided core |
| CN101651370A (en) * | 2008-08-12 | 2010-02-17 | 寰宇电控股份有限公司 | Brushless permanent magnet motor for eliminating cogging torque |
| CN202586526U (en) * | 2012-05-17 | 2012-12-05 | 深圳市配天电机技术有限公司 | Concentrated winding motor, generator and motor |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1613172A (en) * | 2003-04-11 | 2005-05-04 | 三菱电机株式会社 | Permanent magnetic motor |
| JP2005261188A (en) * | 2004-02-09 | 2005-09-22 | Mitsubishi Materials Corp | Core for rotating machine and rotating machine |
| JP2007060800A (en) * | 2005-08-24 | 2007-03-08 | Jtekt Corp | Armature core and motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105896867A (en) * | 2016-05-31 | 2016-08-24 | 德州杰诺新能源有限公司 | Permanent magnet motor of super-efficient 10-pole 12-slot magnetic steel built-in line-styled rotor structure |
| CN109565231A (en) * | 2016-08-05 | 2019-04-02 | 日本电产株式会社 | Stator core and motor |
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| CN103427510B (en) | 2016-01-06 |
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