CN103051098A - Multi-component electric/magnetic passageway and low-cogging torque magnetic flow switching type motor - Google Patents
Multi-component electric/magnetic passageway and low-cogging torque magnetic flow switching type motor Download PDFInfo
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- CN103051098A CN103051098A CN2013100228189A CN201310022818A CN103051098A CN 103051098 A CN103051098 A CN 103051098A CN 2013100228189 A CN2013100228189 A CN 2013100228189A CN 201310022818 A CN201310022818 A CN 201310022818A CN 103051098 A CN103051098 A CN 103051098A
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Abstract
The invention discloses a multi-component electric/magnetic passageway and low-cogging torque magnetic flow switching type motor which is a magnetic flow switching type motor in which electrical loads and magnetic loads are divided into multi-unit independent passageways, the cogging torque is low, and the self-fault-tolerant performance can be realized. The motor comprises mainly comprises double-permanent magnet core salient poles, tooth crest cambered surface radian tooth milling rotors, and armature windings of three-phase multi-component electromagnetic passageways. Each phase of the three-phase armature winding is divided into the plurality of independent electromagnetic passageways, each stator core salient pole adopts a double-permanent magnet, and the tooth crest cambered surface of each rotor adopts a radian milling method, so that the cogging torque of the motor can be reduced to be lowest due to the synergistic effect of the two methods. The motor is high in power density, high in efficiency, energy-saving, smooth to run, low in noise, high in self-fault-tolerant performance, adjustable in power, and high in reliability as the motor can continuously run when one armature winding is broken down, the motor can be taken as not only an electromotor, but also an electric generator, and the motor is totally-enclosed in structure, and can be used in high-speed, high-temperature and severe environments and under water, so that the motor is a novel motor which is wide in application range.
Description
Technical field:
Having the present invention relates to a kind of " magnetic pass switching electromotor of polynary electricity/flux path, Low gullet torque ", is that a kind of electric loading and magnetic loading are divided into the multiple unit independent path, Low gullet torque, and tool is from the Ci of fault-tolerance Tong Qie Change type motor.Comprise the major parts such as armature winding that the two permanent magnet cardiac prominence utmost points of stator, tooth top cambered surface radian are cut tooth rotor, the polynary electromagnetism path of three-phase.Each of threephase armature winding is divided into some independent electromagnetism paths mutually, and the stator core salient pole adopts two permanent magnetism, adds that the radian of rotor tooth top cambered surface is cut the tooth method, and it is minimum that both synergies finally make the cogging torque of motor reduce to.This motor is a kind of power density height that has, energy-efficient, running is level and smooth, and noise is low, and is strong from fault-tolerance, power is adjustable, and when the high reliability that a certain armature winding breaks down and still can continue to move, can make motor and also can make generator, full-closed structure, suitable high speed, high temperature and adverse circumstances and use under water, complete innovative motor applied widely.This motor Chinese is referred to as polynary flux switch motor, and english abbreviation is MFSPM.
Background technology:
In short supply along with the development of society, the energy, each field has proposed higher demand to each side such as the high-performance of motor, high efficiency, high reliability, especially at Aero-Space, military equipment, sea-lanes of communication and mining equipment that some are important, especially be badly in need of having high power density (volume is little), high efficiency (energy-conservation), high reliability (can operate with failure), operate steadily (noise is low), firm in structure, the New-type electric machine that can tolerate adverse circumstances, the good combination property such as applied widely.But traditional all kinds of motors all are difficult to adapt to fully the requirement of these conditions.Present comparatively advanced permanent magnetism class motor, comprise " permanent magnetic brushless BLDC ", " permagnetic synchronous motor " PMSM, " coreless permanent magnet motor " though etc. higher efficient arranged, but owing to reasons such as manufacturing process and protectives, generally all adopt internal rotor permanent-magnetic type structure (the coreless permanent magnet motor is essential Bian rotor permanent magnet type structure then, and power is confined to little, micromachine at present).Because rotor is higher in the temperature rise of when operation, radiating condition is poor, the centrifugal force that produces when adding High Rotation Speed easily makes the permanent-magnet pieces demagnetization or comes off, and causes easily motor performance to descend gradually after using a period of time, even can not use." switching magnetic-resistance SPM motor " has simple in structure, and robustness is good, and electricity/magnetic circuit independence is good, the tool fault-tolerance, rotor does not have permanent magnetism, does not have winding yet, adapts to high speed, hot operation, but also exist the cogging torque pulsation large, noise is large, and vibration is large, and efficient also is lower than permanent magnetism class motor, add complicated, the high in cost of production shortcoming of driving control system, fail wide popularization and application.At present except switched reluctance machines (but also having above-mentioned shortcoming), a very little point failure all can occur because of certain winding in the other types motor, the fatal drawback that motor can not continue to move immediately, reliability is undesirable, at some the field of high reliability request is arranged, even can lead to great security incident, militarily can incur loss through delay opportunity of combat.Develop a kind of novel, high power density, high efficiency, robustness good, have from fault-tolerant high reliability, at the energy-saving and environmental protection of the stronger tolerance of adverse circumstances tool, firm, durable New-type electric machine, become the focus of countries in the world engineers and technicians' scientific research and the problem of demanding urgently breaking through.The long and short place of all kinds of motors of my Sigong journey technical staff's analysis-by-synthesis, especially the advantage that permanent magnetism class motor and switched reluctance machines two class motors is had or potential meltable, this is analyzed, contrast, use for reference, integrate, develop a kind of structure, principle, " polynary electricity/flux path, Low gullet torque magnetic pass switching electromotor " that technical characterictic is brand-new.The invention belongs to autonomous original invention.
Summary of the invention:
By to the separately properity of existing all kinds of motors, the integration analysis of characteristics, especially to its advantages that has separately of deep analysis of the more advanced motors such as permanent magnetism class, switching magnetic-resistance, or potential meltable, by analyzing, contrast, use for reference, integrate, develop a kind of innovative " polynary electricity/flux path, Low gullet torque magnetic pass switching electromotor ".Summary of the invention is as follows.
The structure of " polynary electricity/flux path, Low gullet torque magnetic pass switching electromotor " is by with the shell of cooling fin, front/rear end cap, and front/rear end cap O-ring seals, front end housing rotating shaft sealing assembly, rotating shaft, front/rear bearing, spring washer, lead-out wire bore seal assembly, armature winding lead-out wire, current overload safety device, tooth top cambered surface are cut the rotor of tooth, two permanent magnet cardiac prominence utmost point stator, the polynary electricity of the three-phase/main compositions such as flux path armature winding.
The tooth top cambered surface of " polynary electricity/flux path, Low gullet torque magnetic pass switching electromotor " is cut the rotor of tooth, technical characterictic is: be overrided to form by on request size of silicon steel sheet, the punching of shape, excircle is evenly equipped with the even number double wedge, double wedge quantity is determined according to the number of phases, the number of poles of motor, quantity is even number, and the tooth top cambered surface of each double wedge is all repaiied through the radian of appropriateness and cut.
Two permanent magnet cardiac prominence utmost point stators of " magnetic pass switching electromotor of polynary electricity/flux path, Low gullet torque ", technical characterictic is: be overrided to form by on request size of silicon steel sheet, the punching of shape, this has two kinds of methods: method one, after silicon steel sheet is washed into full wafer, laminates into certain thickness and form; Method two is divided into same equal portions with stator core by the quantity of salient pole, first on request size, shape punching, and assembling laminates into the assembly that there is concavo-convex location at the rear of core two ends again, is assembled into the one-piece stator iron core again; The circumference Inner of stator is evenly equipped with even number salient pole unshakable in one's determination, and quantity is that the number of phases, the number of poles of root a tree name motor determined, quantity is even number.
Two permanent magnet cardiac prominence utmost points of " polynary electricity/flux path, Low gullet torque Ci Tong Qie Change type motor ", technical characterictic is: each salient pole unshakable in one's determination is along in two grooves of stator shaft orientation, respectively embed respectively a slice same polarity permanent magnet, be to be embedded with 2 permanent magnets in each salient pole, consist of two permanent magnet cardiac prominence utmost points, the permanent magnet that embeds with adjacent salient pole unshakable in one's determination is heteropolarity; Salient pole more than stator core yoke section periphery doubles as insulating barrier with the coating of glass insulating tape, bonding, enhancing again.
The polynary electricity of three-phase of " polynary electricity/flux path, Low gullet torque magnetic pass switching electromotor "/flux path armature winding, technical characterictic is: the polynary electricity of three-phase/flux path armature winding, be divided into A phase armature winding, B phase armature winding, C phase armature winding, the armature winding of each phase sequence separately embedding in the stator circumference by each phase sequence, salient pole unshakable in one's determination that each unit electricity/magnetic circuit is corresponding; The armature winding of each phase sequence all is divided into some unit electricity/flux path; With the electricity of unit/flux path armature winding, the number of poles salient pole corresponding with electricity/magnetic Circuit Design of motor pressed in embedding in the stator circumference respectively, is connected in series, and consists of one tunnel electricity/flux path independently.Take stator 12 utmost points, rotor 10 utmost point motors as example: whenever occupy 4 salient poles unshakable in one's determination in stator, be distributed in separately and be in position corresponding to 90 degree mechanical angles in the stator circumference, the armature winding in per 2 salient poles unshakable in one's determination is a unit electricity/flux path; A1a-A1b is F1 electricity/flux path such as A phase armature winding, and A2a-A2b is F2 electricity/flux path; The A1a-A1b of F1 electricity/flux path armature winding respectively embedding is in the salient pole unshakable in one's determination that 90 degree mechanical angles distribute in stator circumference, be connected in series, and consists of F1 electricity/flux path; The A2a-A2b embedding is connected in series around radially corresponding with the F1 path winding salient pole unshakable in one's determination of stator circumference, consists of F2 electricity/flux path; F1, F2 two-way electricity/flux path armature winding, be connected in parallel again after the serial connection of respectively hanging oneself " overload current protector ", become the armature winding that A has 2 unit electricity/flux paths mutually, the embedding of remaining B phase armature winding and C phase armature winding is around identical with the armature winding of A phase with connected mode.
Description of drawings:
Totally four figure are as follows.
Fig. 1 is the radial section schematic diagram of polynary electricity/flux path, Low gullet torque magnetic pass switching electromotor.
| 10 | | 16 | |
| 13 | The two permanent magnetism salient poles of stator are unshakable in one's determination | 17 | |
| 14 | Armature winding | 22 | The overload current protector |
Fig. 2 is the axial arrangement generalized section of polynary electricity/flux path, Low gullet torque Ci Tong Qie Change type motor.
| 1 | | 10 | |
| 2 | | 11 | Fore bearing |
| 3 | | 12 | Rear bearing |
| 4 | | 13 | The two permanent magnetism salient poles of stator are unshakable in one's determination |
| 5 | O- | 14 | Armature winding |
| 6 | End cap adds the | 15 | Rotor |
| 7 | | 18 | The wire hole seal |
| 8 | The rotating | 19 | Lead-out wire |
| 9 | | 22 | The overload current protector |
Fig. 3 is that the tooth top cambered surface radian of rotor double wedge is cut tooth schematic diagram (the dotted line part of tooth top is pruned).
| 16 | Rotor tooth top cambered surface radian is cut tooth |
Fig. 4 is punching and the two permanent magnet cardiac prominence utmost point assembly glass insulating tape cladding bonding schematic diagram that stator core is divided into the equal portions assembly.
| 20 | Stator core is divided into the punching of | 21 | Two permanent magnet cardiac prominence utmost point glass insulating coatings |
Embodiment:
For realizing above-mentioned purpose, the present invention takes following concrete implementer's formula.
Polynary electricity/flux path, the Low gullet torque magnetic pass switching electromotor comprises band cooling fin aluminium alloy (or other metals) shells (1), front end housing (3), rear end cap (4), front/rear end cap O-ring seals (4), rotating shaft (10), fore bearing (11), rear bearing (12), spring washer (7), front end housing rotating shaft sealing assembly (8), lead-out wire black box (18), overload current protector (22), the tooth top cambered surface is cut tooth rotor (15), two permanent magnet cardiac prominence utmost point stators (13), the main part such as the polynary electricity of three-phase/magnetic channel armature winding (14) forms.Such as Fig. 2.
With shell and the front/rear end cap of cooling fin, be by aluminum alloy materials or other metal material Tu, form by machine work by extruding or die casting or casting, the inner side end of front/rear end cap has ribs; The circumference binding site of shell and front/rear end cap has O-ring seals, between the axis hole of front end housing and the rotating shaft black box is arranged, there is the rubber seal assembly in the lead-out wire hole of rear end cap, that above-mentioned sealing equipment can be selected as required is high temperature resistant, chemically-resistant agent, oil resisting material, prevents that mud, water and chemical substance from infiltrating motor internal; In the front end housing bearing chamber spring washer is arranged; Rotating shaft is the needs according to the motor purposes, selects different trade mark steel machines to process.Such as Fig. 2.
The tooth top cambered surface is cut the tooth rotor: be to be pressed into by the silicon steel punched chip closed assembly, excircle is evenly equipped with the even number double wedge, quantity is that the number of phases, the number of poles according to motor determined, quantity is even number, the tooth top cambered surface of each tooth is all made the cambered surface of appropriateness and is repaiied and cut, can reduce like this deal of back-emf each harmonic, make counter potential waveform more sinusoidal, electromagnetic torque pulsation can effectively be cut down.Pruned such as Fig. 3 dotted portion.
Two permanent magnet cardiac prominence utmost point stators are to be overrided to form by on request size of silicon steel sheet, the punching of shape, and this has two kinds of methods: method one, silicon steel sheet is washed into full wafer after, closed assembly is pressed into certain thickness and forms; Method two is divided into same equal portions with stator core by the quantity of salient pole, size on request, shape punching, and closed assembly becomes the assembly of the concavo-convex location of band, yoke section two ends, is assembled into the one-piece stator iron core again; The circumference Inner of stator is evenly equipped with even number salient pole unshakable in one's determination, and quantity is that the number of phases, the number of poles of root a tree name motor determined, quantity is even number.
Two permanent magnet cardiac prominence utmost points, each salient pole unshakable in one's determination is along embedding respectively a slice same polarity permanent magnet in two grooves of stator shaft orientation, be to be embedded with 2 permanent magnets in each salient pole, the permanent magnet that embeds can be ferrite permanent-magnet or rare-earth Nd-Fe-B permanent magnetism or rare earth samarium cobalt permanent magnet or Al-Ni-Co permanent magnet, consist of two permanent magnet cardiac prominence utmost points, the permanent magnet that embeds with adjacent salient pole unshakable in one's determination is heteropolarity, such technical measures can be worked in coordination with the cambered surface radian of rotor and be cut the tooth method, to weakening the cogging torque pulsation quite good effect are arranged; Salient pole more than stator core yoke section periphery doubles as insulating barrier with glass insulating tape coating bonding, enhancing again.Such as Fig. 4.
The polynary electricity of three-phase/flux path armature winding, respectively embedding is around each phase sequence of stator circumference Inner, salient pole corresponding to the electricity/magnetic circuit of unit separately, method is: will be divided into some unit electricity/flux path with phase sequence armature winding first, again will with the electricity of unit/flux path armature winding respectively embedding in stator circumference, press the mutually salient pole of correspondence of electricity/magnetic Circuit Design, be connected in series, consist of the electricity/flux path of a separate unit; Then with each unit electricity/flux path armature winding of homophase, be connected in parallel behind the serial connection of respectively the hanging oneself overload current protector, become one and have mutually multiple unit electricity/flux path winding, for example: stator 12 utmost points among Fig. 1, polynary electricity/the flux path of rotor 10 utmost points, Low gullet torque Ci Tong Qie Change type motor, the A1a of A phase and A1b armature winding are F1 unit electricity/flux path, A2a and A2b armature winding are F2 unit electricity/flux path, the A1a of F1 unit electricity/flux path armature winding and A1b respectively embedding are in the salient pole that 90 degree mechanical angles distribute in the stator core circumference, be connected in series, consist of F1 electricity/flux path.A2 a and A2 b embedding are connected in series around radially corresponding with the F1 path winding salient pole of stator circumference, consist of F2 electricity/flux path.F1, F2 two-way electricity/flux path electricity pivot are connected in parallel behind the serial connection of respectively the hanging oneself overload current protector around Group, become the armature winding that A has 2 unit electricity/flux paths mutually.The embedding of the electromagnetism path armature winding of remaining B phase and C phase is around electricity/flux path armature winding is identical mutually with A with method of attachment, such as Fig. 1.
The overload current protector, be connected in series with the head end of each electricity/flux path Dian Shu Rao Group, be connected in parallel with other electricity of homophase/flux path armature winding again, consist of a Dian Shu Rao Group who has mutually multiple unit electricity/flux path, the overload current protector is installed in the inwall of motor housing rear end, such as Fig. 2.
Although above-mentionedly by reference to the accompanying drawings structural principle of the present invention, embodiment are described; but those skilled in the art should understand; implementation example of the present invention is not the restriction to the invention protection range; on the basis that does not break away from structure of the present invention, principle and technical characterictic, execution mode scope; also have various changes and modifications, these changes and improvements all belong within the protection range of requirement of the present invention.
Beneficial effect of the present invention:
Polynary electricity/flux path, Low gullet torque magnetic pass switching electromotor, to have the power density height, efficient is high, reliability is high, smooth running, noise is low, use applicable to high speed, high temperature and adverse circumstances, can be designed to as required the New-type electric machine of different high or low powers, the number of phases, number of poles, rotating speed, both can be used as motor, also can be used as generator, be specially adapted to the important different field such as Aero-Space, military equipment, sea-lanes of communication instrument, industrial and mineral Grand Equipments of high reliability request, applied range.
Because the independence of each electricity/magnetic circuit is better, if when certain phase certain electricity/when flux path armature winding broke down, the armature winding that substantially can not affect other non-fault electricity/flux paths worked.Therefore but the motor tape jam continues operation, has high reliability.
The stator core salient pole adopts two permanent magnetism, and this has cogging torque and well slackens effect, adds the radian of rotor tooth top cambered surface and cuts the tooth method, both synergies, it is minimum that the cogging torque of motor is reduced to, and running is level and smooth, noise is low, and therefore electric efficiency also can improve.
Permanent-magnet pieces is assembled in stator, and radiating condition is good, is difficult for the Yin Gaowen demagnetization, and the centrifugal force that produces in the time of can not running up because of rotor comes off, and has so also increased reliability and the useful life of motor.
Each electricity/flux path armature winding is concentrated winding, and the end is short, and manufacturing process is simple, saves the electromagnetism copper cash, and the inspection of fault, maintenance are very easy to.
Rotor is overrided to form by silicon steel sheet processing, and is simple in structure, firm also without winding both without permanent magnet, suitable high speed, high temperature operation.
The general Bian of the material of shell, end cap is with aluminium alloy (also available other metal materials), because the thermal conductivity of aluminium alloy is higher, the high temperature during easily with machine operation in time leaves, and light specific gravity makes the Chong Liang Minus of motor few simultaneously.
The hermetically sealed design of motor, applicable adverse circumstances (muddy water splashes, stirs up a cloud of dust) and use under water.
Claims (7)
1. the structure of " polynary electricity/flux path; Low gullet torque magnetic pass switching electromotor " is by the shell with cooling fin, front/rear end cap, front/rear end cap O-ring seals, rotating shaft, front/rear bearing, spring washer, front end housing rotating shaft sealing assembly, the lead-out wire bore seal assembly, the overload current protector, threephase armature winding extracting power supply cord, the tooth top cambered surface is cut the rotor of tooth, two permanent magnet cardiac prominence utmost point stators, the main compositions such as armature winding of the polynary electricity/flux path of three-phase, technical characterictic is: with shell and the front/rear end cap of cooling fin, to be formed by machine work by aluminum alloy materials or other metal material Tu moulding, the circumference connecting portion of shell and front/rear end cap has O-ring seals, between the axis hole of front end housing and the rotating shaft black box is arranged, in the front end housing bearing chamber spring washer is arranged, the inner face of front/rear end cap has ribs.
2. the tooth top cambered surface of " polynary electricity/flux path, Low gullet torque magnetic pass switching electromotor " is cut the rotor of tooth, technical characterictic is: be overrided to form by on request size of silicon steel sheet, the punching of shape, excircle is evenly equipped with the even number double wedge, double wedge quantity is determined according to the number of phases, the number of poles of motor, quantity is even number, and the tooth top cambered surface of each double wedge is all repaiied through the radian of appropriateness and cut.
3. two permanent magnet cardiac prominence utmost point stators of " polynary electricity/flux path, Low gullet torque magnetic pass switching electromotor ", technical characterictic is: be overrided to form by on request size of silicon steel sheet, the punching of shape, this has two kinds of methods: method one, after silicon steel sheet struck out full wafer, closed assembly was pressed into certain thickness and forms; Method two is divided into same equal portions with stator core by the quantity of salient pole, size on request, shape punching, and closed assembly becomes the assembly of the concavo-convex location of band, yoke section two ends, is assembled into the one-piece stator iron core again; The circumference Inner of stator is evenly equipped with even number salient pole unshakable in one's determination, and quantity is that the number of phases, the number of poles of root a tree name motor determined, quantity is even number.
4. two permanent magnet cardiac prominence utmost points of " polynary electricity/flux path, Low gullet torque Ci Tong Qie Change type motor ", technical characterictic is: each salient pole unshakable in one's determination is along embedding respectively a slice same polarity permanent magnet in two grooves of stator shaft orientation, be to be embedded with 2 permanent magnets in each salient pole, the permanent magnet that embeds can be ferrite permanent-magnet or rare-earth Nd-Fe-B permanent magnetism or rare earth samarium cobalt permanent magnet or Al-Ni-Co permanent magnet, consist of two permanent magnet cardiac prominence utmost points, the permanent magnet that embeds with adjacent salient pole unshakable in one's determination is heteropolarity; Salient pole more than stator core yoke section periphery doubles as insulating barrier with glass insulating tape coating bonding, enhancing again.
5. the polynary electricity of three-phase of " polynary electricity/flux path; Low gullet torque magnetic pass switching electromotor "/flux path armature winding, technical characterictic is: the polynary electricity of three-phase/flux path armature winding, be divided into A phase armature winding, B phase armature winding, C phase armature winding, they are distinguished separately embedding and press each phase sequence in stator circumference, salient pole unshakable in one's determination corresponding to unit electricity/magnetic circuit separately, the armature winding of each phase all is divided into some unit electricity/flux path, armature winding with unit electricity/flux path, embedding number of poles and electricity/flux path by motor in the stator circumference designs corresponding salient pole unshakable in one's determination respectively, be connected in series, formation one is electricity/flux path independently.
6. " polynary electricity/flux path, Low gullet torque magnetic pass switching electromotor " various changes and modifications, elongation technology of carrying out on existing structure, principle, technical characterictic and embodiment basis.
7. " polynary electricity/flux path, Low gullet torque magnetic pass switching electromotor " Chinese is referred to as polynary flux switch motor, and english abbreviation is MFSPM.
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| CN2013100228189A CN103051098A (en) | 2013-01-22 | 2013-01-22 | Multi-component electric/magnetic passageway and low-cogging torque magnetic flow switching type motor |
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| CN103807095A (en) * | 2014-02-17 | 2014-05-21 | 南通大学 | Wind power generation system of independent phase control structure |
| CN105958676A (en) * | 2016-04-27 | 2016-09-21 | 大连名阳实业有限公司 | Magnetic flux switching type permanent magnet motor with magnetic leakage self-locking capability |
| CN106026598A (en) * | 2016-05-11 | 2016-10-12 | 浙江大学 | Structure for reducing cogging torque of flux-switching permanent magnet machine |
| CN108539934A (en) * | 2018-03-12 | 2018-09-14 | 江苏大学 | It is a kind of asymmetry Magnetic Circuit permanent magnet-type motor modeling with demagnetization method for analyzing performance |
| CN108696086A (en) * | 2018-07-13 | 2018-10-23 | 江苏独角客电机科技有限公司 | A kind of radial flux motors |
| CN109391121A (en) * | 2018-11-27 | 2019-02-26 | 艾德斯汽车电机无锡有限公司 | A kind of distribution circular arc motor |
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| CN111064291A (en) * | 2019-12-09 | 2020-04-24 | 珠海格力电器股份有限公司 | High-speed three-phase motor and dust collector with same |
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| CN108539934A (en) * | 2018-03-12 | 2018-09-14 | 江苏大学 | It is a kind of asymmetry Magnetic Circuit permanent magnet-type motor modeling with demagnetization method for analyzing performance |
| CN108539934B (en) * | 2018-03-12 | 2020-03-31 | 江苏大学 | Modeling and demagnetization performance analysis method for permanent magnet type motor of asymmetric magnetic network |
| CN108696086A (en) * | 2018-07-13 | 2018-10-23 | 江苏独角客电机科技有限公司 | A kind of radial flux motors |
| CN108696086B (en) * | 2018-07-13 | 2023-12-29 | 江苏独角客电机科技有限公司 | Radial flux motor |
| CN109391121A (en) * | 2018-11-27 | 2019-02-26 | 艾德斯汽车电机无锡有限公司 | A kind of distribution circular arc motor |
| CN111064334A (en) * | 2019-12-09 | 2020-04-24 | 珠海格力电器股份有限公司 | Three-phase permanent magnet synchronous motor and dust collector with same |
| CN111064291A (en) * | 2019-12-09 | 2020-04-24 | 珠海格力电器股份有限公司 | High-speed three-phase motor and dust collector with same |
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Application publication date: 20130417 |