CN202737714U - Brushless permanent magnetism direct current motor with sectional offset high speed rotor magnetic pole - Google Patents
Brushless permanent magnetism direct current motor with sectional offset high speed rotor magnetic pole Download PDFInfo
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- CN202737714U CN202737714U CN 201220271302 CN201220271302U CN202737714U CN 202737714 U CN202737714 U CN 202737714U CN 201220271302 CN201220271302 CN 201220271302 CN 201220271302 U CN201220271302 U CN 201220271302U CN 202737714 U CN202737714 U CN 202737714U
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Abstract
A brushless permanent magnetism direct current motor with sectional offset high speed rotor magnetic poles is provided, and the direct current motor comprises a motor housing, a stator silicon steel punching sheet, a plurality of coil windings, and magnetic steel permanent magnets, a permanent magnet inner chamber is arranged in silicon steel punching sheet gullet silicon steel punching sheet of a motor rotor iron core, and rotor inclined magnetic poles and rotor magnetic poles are offset in sectional manner. The brushless permanent magnetism direct current motor with sectional offset high speed rotor magnetic poles improves high reliability of the brushless permanent magnetism direct current motor, the brushless permanent magnetism direct current motor is easy to control, and the brushless permanent magnetism direct current motor is a main power motor of high-end electric automobiles. Rotor position sensing technology and the like are employed to form high speed rotor inclined magnetic pole brushless permanent magnetism direct current motor. Magnetic resistance torque is generated by interaction between the gullet stator and the rotor permanent magnets of the motor iron core, fractional slot winding technology is employed, and the rotor inclined magnetic poles, the rotor magnetic poles sectional offset, and magnetic pole offset technology are employed.
Description
Technical field
The utility model relates to permanent-magnet brushless DC electric machine, particularly a kind of magnetic pole of brshless DC motor.
Technical background
World is all at the various various permanent-magnet brushless DC electric machines of research, the multiple formula of putting of its structure, but be reluctance torque existing cogging torque aspect " non-brush permanent-magnet DC motor " production technology, only have when reluctance torque less than 1 the time, can reach that motor is convenient to starting, energy-conserving and environment-protective, vibration is little, noise is little, in present motor, since control signal, the sensing distortion.
The cost of rotor core silicon steel punching in the manufacturing is high; The problems such as power of motor compared low, and the loss of electric machine is large, and starting current is large, and noise is large, and vibration is large, and the battery operating range is short.
The utility model content
For the deficiencies in the prior art, it is the brushless permanent magnet DC motor of segmented dislocation that the utility model provides a kind of high speed rotor magnetic pole.Solved the main power motor of high-end electric automobile, starting current is large, the difficult problem of motor oscillating and noise.
To achieve these goals, technical solution adopted in the utility model is:
The high speed rotor magnetic pole is the brushless permanent magnet DC motor of segmented dislocation, comprise electric machine casing, the punching of stator silicon steel, multiply coil windings and set magnet permanent body, be equipped with the permanent magnet inner room in the silicon steel punching teeth groove silicon steel punching of motor rotor core, the oblique magnetic pole of described rotor and rotor magnetic pole segmented dislocation skew.
Rotor is fractional slot winding, and the punching of rotor silicon steel laminates the field frame assembly skewed slot that cast aluminium forms, and magnetic pole places magnetic pole permanent magnet inner room for watt oblique magnetic pole of shape permanent magnet, is equipped with many group magnetic pole watt shape permanent magnets in the rotor assembly skewed slot.
Rotor is provided with rotor-position sensor.
The beneficial effects of the utility model: the reluctance torque because the teeth groove stator of electric machine iron core and rotor permanent magnet interact and produce, adopt the fractional slot winding technology, the rotor magnetic pole segmented misplaces, the magnetic pole migration technology.Effectively reduce cogging torque, reduce starting current motor oscillating and noise.The utility model improves the high reliability of permanent-magnet brushless DC electric machine and is convenient to control, is the main power motor of high-end electric automobile.Rotor position sensing technology etc. consist of the oblique magnetic pole brushless permanent magnet DC motor of high speed rotor.Reluctance torque because the teeth groove stator of electric machine iron core and rotor permanent magnet interact and produce adopts the fractional slot winding technology, and the oblique magnetic pole of rotor, rotor magnetic pole segmented misplace the magnetic pole migration technology.
Description of drawings
Fig. 1, rotor schematic diagram of the present utility model;
Fig. 2, stator schematic diagram of the present utility model.
Embodiment
The oblique magnetic pole of rotor is segmented magnetic pole dislocation skew, reduces the torque of first-harmonic groove; Fractional slot winding high speed rotor magnetic pole segmented dislocation brushless permanent magnet DC motor, this DC Brushless Motor rotor is fractional slot winding, the punching of rotor silicon steel laminates cast aluminium, and to form field frame assembly be skewed slot, magnetic pole places magnetic pole permanent magnet inner room for watt oblique magnetic pole of shape permanent magnet, be equipped with many group magnetic pole watt shape permanent magnets in the rotor assembly skewed slot, rotor silicon steel punching 1 laminates the rotor assembly that cast aluminium forms, the skew of segmented magnetic pole, the oblique utmost point of rotor magnetic pole permanent magnet, rotor magnetic pole permanent magnet (magnet steel 11) segmented dislocation skew.Rotor silicon steel punching 1 is positioned at stator silicon steel plate 2.
Described high speed rotor magnetic pole segmented dislocation brushless permanent magnet DC motor fractional slot winding, it is characterized in that the rotor winding is fractional slot winding, so-called fractional slot winding, refer to that every extremely every phase groove number is a mark, general expression is q=b+ " c/d ", and b is the integer that formula q=z/2pm obtains in the formula; C/d is the mark that can not make an appointment with again, the remaining groove number after the c representative is divided exactly, and d then represents number of magnet poles in the unit motor that will analyze.Fractional-slot can be with interior magnet rotor and outer magnet rotor, and it can many magnetic poles, the slow-speed of revolution, the DC Brushless Motor rotor of large torque.
High speed rotor magnetic pole segmented dislocation brushless permanent magnet DC motor fractional slot winding, adopt fractional slot winding, the fractional slot winding motor that has same groove to count Z is compared with integer groove winding electric machine, first-harmonic groove torque periodicity increases d doubly, there is the fractional slot winding motor of identical number of poles to compare with integer groove winding electric machine, the evaluation factor CT of cogging torque has reduced d doubly, and this analysis clearly demonstrates adopts the fractional slot winding motor to be conducive to reduce cogging torque.
Described high speed rotor magnetic pole segmented dislocation brushless permanent magnet DC motor field frame assembly is skewed slot, it is skewed slot that the punching of stator silicon steel is overrided to form field frame assembly, skewed slot is built-in with the multiply coil windings, it is oblique magnetic pole that multiply coil windings and the punching of rotor silicon steel are overrided to form the rotor magnetic pole permanent magnet, consists of the motor core component.
High speed rotor magnetic pole segmented dislocation brushless permanent magnet DC motor magnetic pole is for placing magnetic pole permanent magnet inner room, be equipped with many group magnetic pole permanent magnet inner rooms in the rotor assembly skewed slot, be equipped with many group N sheet magnet steel watt shape permanent magnets in the rotor silicon steel punching assembly inner room, form the permanent magnet direct current motor rotor assembly.
High speed rotor magnetic pole segmented dislocation brushless permanent magnet DC motor magnetic pole permanent magnet is the segmented dislocation, tiltedly magnetic pole is the segmented dislocation, the dislocation of rotor magnetic pole segmented, segments NS=3, every section offsetting angle θ _ SS is expressed as θ _ SS=θ _ SK/N_S=" 360 " degree/(N_C N_S).The rotor magnetic pole permanent magnet is the skew of segmented misconstruction magnetic pole.
The skew of described high speed rotor magnetic pole segmented dislocation brushless permanent magnet DC motor magnetic pole, brushless permanent magnet DC motor, oblique magnetism method, deviation angle θ _ shj is respectively θ _ shj=(" 360 " ^0(j-1))/(2_pN_c) j=1,2 ..., what 2_p was used is the motor pole migration technology.
High speed rotor magnetic pole segmented dislocation brushless permanent magnet DC motor, magnetic pole is the tile-shaped magnet steel permanent magnet, the oblique magnetic pole segmented of rotor mode, place the punching of rotor silicon steel to be overrided to form iron core, the two ends of silicon steel sheet core have end plate to cast aluminium to become fan-shaped fixed stator iron core tile-shaped magnet steel permanent magnet and reduce doing of temperature and use magnet steel.
Propose in the mill the rotor position sensing technology, the disk sensor-based system is to solve the hall sensing signal to cause the motor electronic exchange to the problem of distorted signals.Adopt the disk sensor-based system, easy to adjust in the time of will adjusting sensor-based system in manufacturing and maintenance process, maintenance process is convenient.
Technical scheme A: the oblique magnetic pole of high speed rotor, magnetic pole segmented dislocation brushless permanent magnet DC motor skewed stator slot, the oblique magnetic pole of rotor, the oblique magnetic pole of rotor or rotor magnetic pole segment fault method for position.Each produces the least common multiple NC that existing cogging torque primitive period number equals number of stator slots Z and number of poles 2p rotor, and namely a mechanical angle θ 1 corresponding to cogging torque primitive period is=360 degree/N_C.Therefore, if the oblique polar angle θ of skewed stator core slot angle or rotor magnetic pole SK is equal with it, can eliminate the first-harmonic of cogging torque: θ SK=360 degree/N_C.For integer groove motor, NC=Z, skewed slot angle θ SK, θ SK=360 degree/Z.But it is to be noted that it can make back electromotive force and output electromagnetic torque descend to some extent simultaneously.Skewed stator slot also makes the winding embedding increase around difficulty.And, when skewed stator slot or skewed-rotor are switched at the motor winding, can produce additional axial force.The axial force size is relevant with angle of bevel.In order to implement easily on the manufacturing process, adopt the effect of the approximate oblique utmost point of rotor magnetic pole segment fault method for position, segments NS=3, offsetting angle θ _ SS, θ _ SS=θ _ SK/N_S=360 degree/(N_C N_S).The different segments NS of rotor magnetic pole is to reducing the effect of cogging torque, and along with segments NS increases, the amplitude of cogging torque progressively reduces, and is 2,3,4 o'clock in addition when segments NS divides, and remaining torque variation number of times increases, and mainly is 2,3,4 subharmonic.The effect that reduces cogging torque when rotor magnetic pole divides 4 sections is fine, and segments is 5 o'clock, and cogging torque can have been ignored fully.The fractional-slot situation, if fractional-slot concentrates the every grade of groove of whenever thinking of winding to count q and be expressed as q=c/d, the least common multiple Nc=dZ of Z and 2p then.The general expression of skewed slot angle θ _ SK and q value relation is θ SK=360 degree/dZ.For the fractional-slot motor, when adopting skewed stator slot or skewed-rotor method to reduce cogging torque, skewed stator slot angle or skewed-rotor angle are less than a stator slot elongation, and be less many than integer groove motor, they are relevant with the q value, only need the 1/d of a stator slot elongation to get final product.From the skewed slot technological angle, fractional-slot also is to select preferably.
Technical scheme B: the oblique magnetic pole of high speed rotor, magnetic pole segmented dislocation brushless permanent magnet DC motor adopt offset method.According to scheme 1, thinking along the dislocation of axial segmentation magnetic pole, in order to weaken cogging torque, paste the magnetic sheet multipolar dynamo for the surface, 2p pole piece made into along the circumferential direction to be offset from original evenly position, their deviation angle θ _ shj is respectively θ _ shj=(360 degree (j-1))/(2_pN_c) j=1,2 ... 2_p does like this, being equivalent to has segmentation magnetic pole 2p section within a first-harmonic cogging torque cycle, like this, except 2p time and multiple subharmonic, other cogging torques all obtain weakening.Because harmonic number superelevation amplitude is less, so total cogging torque obtains weakening.When arranging 2p magnetic pole, needn't necessarily press the natural number order of j, can arrange flexibly: taking the locus possibility into account on the one hand, is to consider that the magnetic pole skew may cause the imbalance problem of rotor in addition.This method also is feasible for embedded rotor.
Technical scheme C: in conjunction with Fig. 1, shown in, the high speed rotor magnetic pole segmented dislocation brushless permanent magnet DC motor motor of present embodiment adopts fractional slot winding, the fractional slot winding motor that has same groove to count Z is compared with integer groove winding electric machine, first-harmonic groove torque periodicity increases d doubly, there is the fractional slot winding motor of identical number of poles to compare with integer groove winding electric machine, the evaluation factor CT of cogging torque has reduced d doubly, and this analysis clearly demonstrates adopts the fractional slot winding motor to be conducive to reduce cogging torque.The oblique magnetic pole of rotor, magnetic pole segmented dislocation brushless permanent magnet DC motor comprises: be provided with stator silicon steel sheet in the electric machine casing, with the DC motor rotor silicon steel sheet, stator core is provided with winding coil, rotor shaft, be provided with the magnetic core that discoid steel disc multilayer builds up, the magnetic core external rotor is fixed with the armature spindle machine fro, and motor is provided with the position sensing element that magnetic pole transducer magnet steel and two groups of six Hall elements such as comprises.The transducer magnet steel is located in the magnet steel seat, waits magnetic pole transducer magnet steel seat to be fixed in the DC motor rotor rotating shaft, waits magnetic pole transducer magnet steel and six Hall elements to be located in the cavity of drive motors circuit board Hall disc formation.Deng the magnetic pole sensor technology; The magnet ring that is spliced by multi-disc discrete magnetic pole Deng magnetic pole transducer magnet steel.
Described high speed rotor magnetic pole segmented dislocation brushless permanent magnet DC motor, it is characterized in that described non-brush permanent-magnet DC motor is characterized in that described motor adopts fractional slot winding, the fractional slot winding motor that has same groove to count Z is compared with integer groove winding electric machine, first-harmonic groove torque periodicity increases d doubly, there is the fractional slot winding motor of identical number of poles to compare with integer groove winding electric machine, the evaluation factor CT of cogging torque has reduced d doubly, and this analysis clearly demonstrates adopts the fractional slot winding motor to be conducive to reduce the torque of teeth groove first-harmonic.This patent fractional slot winding technology and the oblique utmost point of rotor magnetic pole, rotor magnetic pole segmented dislocation technology solve the torque of rotor first-harmonic groove, with the oblique utmost point groove angle of stator core or rotor magnetic pole oblique angle technology; Rotor magnetic pole segmentation dislocation and oblique magnetic technology; The magnetic pole migration technology, the punching of rotor silicon steel, crown is opened the auxiliary flute technology, the oblique utmost point of rotor magnetic pole, the dislocation of rotor magnetic pole segmented, rotor silicon steel punching permanent magnet pole segmented dislocation etc.Drive sensing by the circuit board Hall element and wait the magnetic pole transducer to form permanent-magnet brushless DC electric machine rotor core assembly.Stator silicon steel punching skewed slot is built-in with the multiply coil windings, forms permanent-magnet brushless DC electric machine stator core assembly.
The utility model adopts fractional slot winding and polyphase windings technology; Skewed stator slot, skewed-rotor or rotor magnetic pole segmentation dislocation technology; The magnetic pole migration technology; Stator iron core silicon steel sheet, crown are opened the auxiliary flute technology, rotor position sensing technology etc., and comprehensive above technology reduces cogging torque, makes power of motor improve machine operation stable operation.
Watt shape magnetic pole technology of rotor; The magnetic pole of the machine fro of rotor is that the machine fro by the S utmost point and the N utmost point is combined into, piece together the rotor assembly of making direct current machine between magnetic pole two ends and adjacent two magnetic shoes, the two ends of silicon sheet core are that fixing aluminium flake dish fixed stator iron core is arranged, be provided with perforate in the disk magnet steel, the cast aluminium connection is fixed together discoid steel disc.Cast aluminium link outer end is provided with flabellum and balance columns.Shown in the figure.
The Electromagnetic Design aspect of present embodiment motor adopts A, B, C, three kinds of technology, the gap structure design has effectively reduced and has weakened the reluctance torque of armature supply to magnet steel, effectively prevented loss of excitation or the local demagnetization of permanent magnet under the high peak current, reliability and the life-span of having improved motor.
Because magnet steel seat is fixed on the machine shaft of outer end in the electric motor end cap, it is subjected to external interference little, makes the motor electronic commutation signal not be subjected to the interference of rotor machining precision, armature supply.Position sensing element only is subjected to the impact of ambient temperature, makes machine operation more stable, and reliability is higher.Each line of demarcation, magnetic field is clear, even after adopting the magnetic pole transducer magnet steel splicings such as multi-disc discrete magnetic pole is spliced, and precision is high, so that motor commutation work is more reliable.
Because the magnetic pole of rotor machine fro is combined into by the magnet steel of the S utmost point and the N utmost point, compare with the whole magnetic pole of employing, can reduce eddy current and stray loss, improved the efficient of motor, solve rotor magnetic pole watt shape permanent magnet because of the overheated demagnetization problem that causes, and can improve the mechanical strength of magnetic pole watt shape permanent magnet, prolong motor useful life.Retainer plate can prevent from dropping because ageing of binders causes a magnetic pole watt shape permanent magnet, makes magnetic shoe reliably fixing.The two ends of motor silicon steel drift sheet iron core are provided with fixed charge method end plate and have protected a watt shape magnetic pole shape permanent magnet, can make the rotor heat radiation better.
Claims (3)
1. the high speed rotor magnetic pole is the brushless permanent magnet DC motor of segmented dislocation, comprise electric machine casing, the punching of stator silicon steel, multiply coil windings and set magnet permanent body, be equipped with the permanent magnet inner room in the silicon steel punching teeth groove silicon steel punching of motor rotor core, it is characterized in that the oblique magnetic pole of described rotor and rotor magnetic pole segmented dislocation skew.
2. high speed rotor magnetic pole as claimed in claim 1 is the brushless permanent magnet DC motor of segmented dislocation, it is characterized in that, rotor is fractional slot winding, the punching of rotor silicon steel laminates the field frame assembly skewed slot that cast aluminium forms, magnetic pole places magnetic pole permanent magnet inner room for watt oblique magnetic pole of shape permanent magnet, is equipped with many group magnetic pole watt shape permanent magnets in the rotor assembly skewed slot.
3. high speed rotor magnetic pole as claimed in claim 2 is the brushless permanent magnet DC motor of segmented dislocation, it is characterized in that rotor is provided with rotor-position sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220271302 CN202737714U (en) | 2012-06-06 | 2012-06-06 | Brushless permanent magnetism direct current motor with sectional offset high speed rotor magnetic pole |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220271302 CN202737714U (en) | 2012-06-06 | 2012-06-06 | Brushless permanent magnetism direct current motor with sectional offset high speed rotor magnetic pole |
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| CN202737714U true CN202737714U (en) | 2013-02-13 |
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| CN 201220271302 Expired - Lifetime CN202737714U (en) | 2012-06-06 | 2012-06-06 | Brushless permanent magnetism direct current motor with sectional offset high speed rotor magnetic pole |
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| CN103904793A (en) * | 2014-03-28 | 2014-07-02 | 湖北立锐机电有限公司 | Integrated motor stator punching sheet, motor stator and rotating motor using integrated motor stator punching sheet |
| CN104065182A (en) * | 2014-03-28 | 2014-09-24 | 湖北立锐机电有限公司 | Split type iron core of motor stator, motor stator and rotating motor using same |
| CN104638849A (en) * | 2015-02-16 | 2015-05-20 | 武汉华大新型电机科技股份有限公司 | Method for processing stator and rotor punch sheets capable of reducing motor toothed groove torque and torque ripple |
| CN104682594A (en) * | 2015-03-12 | 2015-06-03 | 申龙电梯股份有限公司 | Motor rotor of permanent magnet synchronous traction machine |
| CN104779721A (en) * | 2015-04-09 | 2015-07-15 | 深圳市今盛科技有限公司 | Rotor and motor comprising same |
| CN105103414A (en) * | 2013-03-27 | 2015-11-25 | 东芝三菱电机产业系统株式会社 | Dynamo-electric machine |
| CN105245043A (en) * | 2015-10-13 | 2016-01-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Segmentation skewed-pole type permanent magnet synchronous motor rotor |
| CN105305685A (en) * | 2015-11-24 | 2016-02-03 | 南京埃斯顿自动控制技术有限公司 | Permanent magnet synchronous direct-drive motor |
| CN105610258A (en) * | 2015-10-26 | 2016-05-25 | 湖南省金函数科技有限公司 | Permanent magnet stepping servo motor |
| CN106160286A (en) * | 2016-07-13 | 2016-11-23 | 广东威灵电机制造有限公司 | Magneto |
| CN106451854A (en) * | 2016-11-17 | 2017-02-22 | 南京航空航天大学 | Interdigital consequent-pole permanent magnet motor |
| CN106505760A (en) * | 2016-11-17 | 2017-03-15 | 南京航空航天大学 | A kind of Consequent pole permanent magnet motor of rotor segment |
| CN106787377A (en) * | 2017-01-18 | 2017-05-31 | 浙江佳雪微特电机集团有限责任公司 | A kind of new-energy automobile brshless DC motor |
| CN106787310A (en) * | 2016-11-17 | 2017-05-31 | 南京航空航天大学 | A kind of magnetic-field-enhanced Consequent pole permanent magnet motor |
| CN107070165A (en) * | 2017-02-27 | 2017-08-18 | 华中科技大学 | A kind of flux-reversal type permanent-magnetism linear motor and its application |
| CN107332374A (en) * | 2017-09-01 | 2017-11-07 | 谭成刚 | Many rotor multiple stators iron-core less motor rotor structures |
| CN107994695A (en) * | 2018-01-20 | 2018-05-04 | 营口万意达智能装备科技有限公司 | A kind of servomotor laminated stator |
| CN109361280A (en) * | 2018-04-18 | 2019-02-19 | 东风汽车电气有限公司 | A kind of permanent-magnetic synchronous motor rotor |
| CN109546776A (en) * | 2019-01-11 | 2019-03-29 | 浙江德马科技股份有限公司 | Permanent magnet motor rotor structure and permanent magnet motor |
| CN110112849A (en) * | 2019-05-21 | 2019-08-09 | 日本电产凯宇汽车电器（江苏）有限公司 | A kind of step skewed pole formula EPS brushless electric motor rotor |
| CN111373632A (en) * | 2017-11-24 | 2020-07-03 | Zf腓特烈斯哈芬股份公司 | Stabilizer actuator with permanent magnet motor |
| CN113964975A (en) * | 2021-11-19 | 2022-01-21 | 广东美的智能科技有限公司 | Rotor core, rotor, motor and robot |
| CN114695015A (en) * | 2022-04-28 | 2022-07-01 | 西安交通大学 | Vacuum arc-extinguishing chamber based on Halbach permanent magnet longitudinal magnetic field |
| WO2024060681A1 (en) * | 2022-09-20 | 2024-03-28 | 精进电动科技股份有限公司 | Permanent magnet motor and electric drive system |
-
2012
- 2012-06-06 CN CN 201220271302 patent/CN202737714U/en not_active Expired - Lifetime
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| CN105103414A (en) * | 2013-03-27 | 2015-11-25 | 东芝三菱电机产业系统株式会社 | Dynamo-electric machine |
| CN103904793A (en) * | 2014-03-28 | 2014-07-02 | 湖北立锐机电有限公司 | Integrated motor stator punching sheet, motor stator and rotating motor using integrated motor stator punching sheet |
| CN104065182A (en) * | 2014-03-28 | 2014-09-24 | 湖北立锐机电有限公司 | Split type iron core of motor stator, motor stator and rotating motor using same |
| CN104638849A (en) * | 2015-02-16 | 2015-05-20 | 武汉华大新型电机科技股份有限公司 | Method for processing stator and rotor punch sheets capable of reducing motor toothed groove torque and torque ripple |
| CN104682594A (en) * | 2015-03-12 | 2015-06-03 | 申龙电梯股份有限公司 | Motor rotor of permanent magnet synchronous traction machine |
| CN104779721A (en) * | 2015-04-09 | 2015-07-15 | 深圳市今盛科技有限公司 | Rotor and motor comprising same |
| CN104779721B (en) * | 2015-04-09 | 2019-01-18 | 深圳市理想节能电机有限公司 | Rotor and motor with the rotor |
| CN105245043A (en) * | 2015-10-13 | 2016-01-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Segmentation skewed-pole type permanent magnet synchronous motor rotor |
| CN105245043B (en) * | 2015-10-13 | 2019-01-22 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of step skewed pole formula permanent-magnetic synchronous motor rotor |
| CN105610258A (en) * | 2015-10-26 | 2016-05-25 | 湖南省金函数科技有限公司 | Permanent magnet stepping servo motor |
| CN105305685A (en) * | 2015-11-24 | 2016-02-03 | 南京埃斯顿自动控制技术有限公司 | Permanent magnet synchronous direct-drive motor |
| CN106160286A (en) * | 2016-07-13 | 2016-11-23 | 广东威灵电机制造有限公司 | Magneto |
| CN106160286B (en) * | 2016-07-13 | 2018-07-24 | 广东威灵电机制造有限公司 | Magneto |
| CN106451854A (en) * | 2016-11-17 | 2017-02-22 | 南京航空航天大学 | Interdigital consequent-pole permanent magnet motor |
| CN106505760A (en) * | 2016-11-17 | 2017-03-15 | 南京航空航天大学 | A kind of Consequent pole permanent magnet motor of rotor segment |
| CN106787310A (en) * | 2016-11-17 | 2017-05-31 | 南京航空航天大学 | A kind of magnetic-field-enhanced Consequent pole permanent magnet motor |
| CN106451854B (en) * | 2016-11-17 | 2019-03-29 | 南京航空航天大学 | A kind of interdigital Consequent pole permanent magnet motor |
| CN106787310B (en) * | 2016-11-17 | 2019-02-05 | 南京航空航天大学 | A kind of magnetic-field-enhanced Consequent pole permanent magnet motor |
| CN106787377A (en) * | 2017-01-18 | 2017-05-31 | 浙江佳雪微特电机集团有限责任公司 | A kind of new-energy automobile brshless DC motor |
| CN107070165A (en) * | 2017-02-27 | 2017-08-18 | 华中科技大学 | A kind of flux-reversal type permanent-magnetism linear motor and its application |
| CN107070165B (en) * | 2017-02-27 | 2019-10-08 | 华中科技大学 | A kind of flux-reversal type permanent-magnetism linear motor and its application |
| CN107332374A (en) * | 2017-09-01 | 2017-11-07 | 谭成刚 | Many rotor multiple stators iron-core less motor rotor structures |
| CN111373632A (en) * | 2017-11-24 | 2020-07-03 | Zf腓特烈斯哈芬股份公司 | Stabilizer actuator with permanent magnet motor |
| CN107994695A (en) * | 2018-01-20 | 2018-05-04 | 营口万意达智能装备科技有限公司 | A kind of servomotor laminated stator |
| CN109361280A (en) * | 2018-04-18 | 2019-02-19 | 东风汽车电气有限公司 | A kind of permanent-magnetic synchronous motor rotor |
| CN109546776A (en) * | 2019-01-11 | 2019-03-29 | 浙江德马科技股份有限公司 | Permanent magnet motor rotor structure and permanent magnet motor |
| CN110112849A (en) * | 2019-05-21 | 2019-08-09 | 日本电产凯宇汽车电器（江苏）有限公司 | A kind of step skewed pole formula EPS brushless electric motor rotor |
| CN113964975A (en) * | 2021-11-19 | 2022-01-21 | 广东美的智能科技有限公司 | Rotor core, rotor, motor and robot |
| CN114695015A (en) * | 2022-04-28 | 2022-07-01 | 西安交通大学 | Vacuum arc-extinguishing chamber based on Halbach permanent magnet longitudinal magnetic field |
| CN114695015B (en) * | 2022-04-28 | 2024-05-17 | 西安交通大学 | Vacuum arc-extinguishing chamber based on longitudinal magnetic field of halbach permanent magnet |
| WO2024060681A1 (en) * | 2022-09-20 | 2024-03-28 | 精进电动科技股份有限公司 | Permanent magnet motor and electric drive system |
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