CN203326846U - Hybrid excitation multi-element magnetic flux switching type automobile hub motor - Google Patents
Hybrid excitation multi-element magnetic flux switching type automobile hub motor Download PDFInfo
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- CN203326846U CN203326846U CN2013201301685U CN201320130168U CN203326846U CN 203326846 U CN203326846 U CN 203326846U CN 2013201301685 U CN2013201301685 U CN 2013201301685U CN 201320130168 U CN201320130168 U CN 201320130168U CN 203326846 U CN203326846 U CN 203326846U
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Abstract
The utility model relates to a hybrid excitation multi-element magnetic flux switching type automobile hub motor, which is characterized in that a permanent magnetic field, an electro-magnetic field and an armature reaction magnetic field in the motor are mutually coupled, each phase winding of an armature is divided into a plurality of independent electric/magnetic paths, a stator salient pole adopts dual permanent magnets, and the tooth crest of a rotor adopts a radian milling method. Electro-magnetic windings are distributed in internal space at the top parts of the salient pole permanent magnets of the motor, thereby adjusting the direction and the amplitude of exciting current, being capable of effectively adjusting and controlling an air gap magnetic field of the permanent magnet, and realizing function of a high torque in a constant torque area and wide speed regulation in a constant power area. A synergistic effect of the dual permanent magnets of the stator salient pole and the radian milling method adopted by the tooth crest of the rotor enables a cogging torque of the motor to be reduced to the lowest level. The motor has the advantages of high power density, high efficiency, energy saving, smooth running, low noises, strong self fault tolerance, adjustable power, very high low-speed torque and high reliability that an automobile can continue to run when a certain armature winding breaks down. The motor provided by the utility model is a full innovative automobile hub motor of electrically driven new energy automobiles.
Description
Technical field
The utility model patented invention has related to the polynary Magneticflux-switching type car wheel electromotor of composite excitation that the three kinds of magnetic fields of ﹑ armature reacting field, the field ﹑ of magnetic forever electricity excitation magnetic field in a kind of motor are coupled mutually, is key components and parts and the core technology of pure electric automobile.Its structure and principle comprise that two permanent magnet cardiac prominence utmost point stators, tooth top cambered surface radian cut the major parts such as the armature winding of tooth rotor, the polynary electricity/flux path of three-phase, the electric excitation winding be connected in series mutually, overcurrent lock.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.The electricity excitation winding is distributed in space in each salient pole dual permanent-magnet of motor, regulate the sense of current and the size of excitation winding, can be to effective adjusting and the control of permanent magnetism air-gap field, widened speed adjustable range, overcome the shortcoming of common magnetic flux switching electromotor adjustable magnetic difficulty, can realize the large torque of Heng Zhuanjuqu, the wide range speed control function of Heng Gongshuaiqu.This motor has that power density is high, Gao Xiao Neng ﹑ running is level and smooth, noise Di ﹑ has high low speed torque from fault-tolerance is strong, Gong leads Ke Tiao ﹑.And automobile still can continue the high reliability of operation when a certain armature winding breaks down, while normally travelling, it is the motor driven, convert generator to when automobile downhill or while sliding, charge a battery, full-closed structure, suitable automobile high-speed, high temperature and adverse circumstances and use under water are the complete innovative car wheel electromotors that the new forms of energy pure electric automobile drives.
Background technology
Along with fuel resource is in short supply, global warming, energy-saving and emission-reduction are very urgent, and particularly national lasting haze weather at the beginning of 2012 to 2013, make problem of environmental pollution more outstanding.On July 9th, 2012, State Council formally issues " energy-conservation and new-energy automobile industrial development planning ", planning claims the new-energy automobile industry development will take pure electricity to drive as the main strategic of new-energy automobile development and auto industry transition and be orientated, current emphasis advances the pure electric automobile industrialization, and clear, by 2015, the passenger car average fuel consumption of current year's production is down to 6.9 liters/hundred kilometers, energy-saving Passenger Car Fuel Consumption Standard consumption be down to 5.9 liters/below hundred kilometers, pure electric automobile or hybrid vehicle project are all going up by every possible means as early as possible in home brands auto vendor, but the associated core technology still fails to make a breakthrough.Car wheel electromotor is the parts of the core key technology of Novel pure electric automobile driving, it has replaced the critical pieces such as the engine of existing automobile and annex, gearbox, power transmission shaft, differential mechanism, fuel tank, make whole vehicle structure become very simple, firm, interior space is broader.But the performance of motor must be able to adapt to various severe road conditions drivings, when Yue Goukeng and climbing, enough large torque, particularly military offroad vehicle is arranged, and requires motor basic point rotating speed to equal 1:10.In recent years the states such as American and Britain, method, moral are applied to the electric wheel hub technology on military offroad vehicle and light tank one after another, and have obtained great achievement.For example U.S. Marines develops tandem " shadow " novel hybrid offroad vehicle on " brave horse " basis, adopted the wheel hub motor new technology, make battlebus in pure electronic situation, possessed quiet, without hot vestige, be difficult for by excellent properties such as enemy's discoveries, it is said that U.S. army has determined stopping production tradition " brave horse " car, " shadow " type military vehicle of the novel hybrid In-wheel motor driving of all changing products.This important development trend, cause showing great attention to of various countries.Domestic at present in high-performance, high reliability car wheel electromotor technology, also lag far behind American-European countries.The auto industry of China is 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, low speed torque large, can tolerate the Novel automobile hub motor of the good combination properties such as high temperature and high speed and adverse circumstances.But traditional all kinds of motors all can not meet the Integrated stated and close performance, difficult realization becomes desirable car wheel electromotor.Current comparatively advanced permanent magnetism class motor, comprise " permanent magnetic brushless BLDC ", " permagnetic synchronous motor " PMSM, " coreless permanent magnet motor " though etc. higher efficiency arranged, but due to manufacturing process and the reason such as technical, generally all adopt internal rotor permanent-magnetic type structure (the coreless permanent magnet motor is rotor permanent magnet type structure for essential Bian, and power is confined to micro-machine at present).Because rotor is poor at the temperature rise of when operation, radiating condition, the centrifugal force produced while adding High Rotation Speed and shaking force, the centrifugal force and the shaking force that easily make permanent-magnet pieces Yin Gaowen demagnetization or produce because of high speed come off, in running, easily cause motor performance to descend gradually, especially the permanent-magnet pieces rear generation De Touch that comes off hits and will inevitably cause whole motor badly damaged and scrap." 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, there is no winding yet, adapts to high speed, hot operation, but also exist the cogging torque pulsation large, noise is large, and vibration is large, and efficiency is also lower than permanent magnetism class motor, add that driving control system is complicated, the high in cost of production shortcoming, 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, motor can not continue the fatal drawback of operation immediately, reliability is undesirable, in the running car way, can make the automobile stagnation of movement once motor breaks down, 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, the wide range speed control of permanent torque, robustness good, there is from fault-tolerant high reliability, at the energy-saving and environmental protection of the stronger tolerance of adverse circumstances tool, firm, durable car wheel electromotor the problem that becomes the focus of countries in the world engineers and technicians' scientific research and urgently break through.The long and short place of all kinds of motors of my Sigong journey technical staff's analysis-by-synthesis, especially advantage permanent magnetism class motor and switched reluctance machines two class motors had or potential meltable, this is analyzed, contrasted, used for reference, integrated, develop a kind of structure, principle, " polynary electricity/flux path, Low gullet torque magnetic pass switching electromotor " that technical characterictic is brand-new, and research and development are special on this basis is applicable to " the polynary Magneticflux-switching type car wheel electromotor of composite excitation " that pure electric automobile is used.Our characteristics of car wheel electromotor of research and development are to have: the large torque of Heng Zhuanjuqu and the wide range speed control of Heng Gongshuaiqu, high power density, energy-efficient, running is level and smooth, noise is low, strong from fault-tolerance,, play walking vehicle and grade climbing performance is good in severe road conditions, more crucial is its high reliability, can be because of the motor winding failure, permanent-magnet pieces comes off etc. and stagnation of movement midway, simultaneously also because his full-closed structure, the special automobile operating state that adapts to, utilize the power more than needed makeup energy that charges a battery, the continuous automobile in the court of a feudal ruler is exercised mileage.Therefore be a kind of desirable pure electric automobile wheel hub motor.The superior function that this motor is unique with it and high reliability, strive for including in as early as possible the national " 863 " plan.The utility model patent belongs to autonomous original invention, has independent intellectual property right, will greatly promote the technical advance of domestic automobile wheel hub motor, in electromechanics trade and pure electric automobile field, ranks the world's advanced.
Summary of the invention
On the basis of polynary electricity/flux path, Low gullet torque magnetic pass switching electromotor patented technology, develop the polynary magnetic flux switching of a kind of innovative composite excitation car wheel electromotor.The exciting method that employing is coupled mutually by permanent magnetic field, electricity excitation magnetic field, armature reacting field, encourage sense of current and amplitude by regulating electricity, realization is carried out and is increased magnetic or weak magnetic the air-gap field of motor, effectively widen the speed adjustable range of motor, there is the large torque of Heng Zhuanjuqu, the wide range speed control of Heng Gongshuaiqu.Summary of the invention is as follows.
The structure of the polynary Magneticflux-switching type car wheel electromotor of composite excitation is to be cut the main compositions such as tooth rotor, the polynary electricity of three-phase/flux path Dian pivot Rao Zu ﹑ electricity Li magnetic Rao Zu ﹑ current overload safety device, winding leading-out wire, lead-out wire black box, front/rear end cap, front/rear end cap O RunddichtringO, front end housing rotating shaft sealing assembly by the shell with cooling fin, rotating shaft, front/rear bearing, spring washer, two permanent magnet cardiac prominence utmost point stator, tooth top cambered surface radian.
The tooth top cambered surface of the polynary Magneticflux-switching type car wheel electromotor of composite excitation is cut the rotor of tooth, technical characterictic is: by silicon steel sheet, size on request, the punching of shape are overrided to form, 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 and cut through appropriate radian.
Two permanent magnet cardiac prominence utmost point stators of the polynary Magneticflux-switching type car wheel electromotor of composite excitation, technical characterictic is: by silicon steel sheet, size on request, the punching of shape are overrided to form, this has two kinds of methods: method one, after silicon steel sheet is washed into to full wafer, laminates into certain thickness and forms; Method two, be divided into same equal portions by stator core by the quantity of salient pole, first size, shape punching on request, then assembling laminates into the assembly that there is concavo-convex location at the rear of core two ends, then be assembled into the one-piece stator iron core; 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 the polynary Magneticflux-switching type car wheel electromotor of composite excitation, technical characterictic is: each salient pole unshakable in one's determination is in two grooves along stator shaft orientation, respectively embed respectively a slice same polarity permanent magnet, be to be embedded with 2 permanent magnets in each salient pole, form two permanent magnet cardiac prominence utmost points, the permanent magnet embedded with adjacent salient pole unshakable in one's determination is heteropolarity; Salient pole periphery more than stator core yoke section, double as insulating barrier with the coating of glass insulating tape, bonding, enhancing again.
The polynary electricity of the three-phase of the polynary Magneticflux-switching type car wheel electromotor of composite excitation/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 around in 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, embedding, around the number of poles salient pole corresponding with electricity/magnetic Circuit Design of pressing motor in stator circumference, is connected in series respectively, forms independently electricity/flux path of a road.Take stator 12 utmost points, rotor 10 utmost point motors is example: often occupy 4 salient poles unshakable in one's determination in stator, be distributed in separately in stator circumference and be in 90 positions corresponding to degree mechanical angle, the armature winding in every 2 salient poles unshakable in one's determination is a unit electricity/flux path; As A phase armature winding, A1a-A1b is F1 electricity/flux path, and A2a-A2b is F2 electricity/flux path; The A1a-A1b of F1 electricity/flux path armature winding embedding respectively is in the salient pole unshakable in one's determination that 90 degree mechanical angles distribute in stator circumference, is connected in series, and forms F1 electricity/flux path; The salient pole unshakable in one's determination that the A2a-A2b embedding is radially corresponding with F1 path winding around stator circumference, be connected in series, and forms F2 electricity/flux path; F1, F2 two-way electricity/flux path armature winding, after the serial connection of respectively hanging oneself " overload current protector ", be connected in parallel again, 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.
The electric excitation winding of the polynary Magneticflux-switching type car wheel electromotor of composite excitation, technical characterictic is: between adjacent two two permanent magnet cardiac prominence utmost points all across being wound with 1 electric excitation winding pole coil, each electric excitation winding pole coil is across (see figure 1) in around adjacent 2 two permanent magnet cardiac prominence pole spans from groove space, hithermost permanent magnet top, 1 electric magnet exciting coil limit is respectively arranged in each groove space, permanent magnet top, be that each two permanent magnet cardiac prominence utmost point is wound with respectively 2 electric magnet exciting coil limits, and it is identical with electromagnetism polarity to be serially connected in the exciting current direction.
The accompanying drawing explanation:
Totally two figure, as follows.
The radial section schematic diagram that Fig. 1 is " the polynary Magneticflux-switching type car wheel electromotor of composite excitation ".
Rotating shaft (10), the two permanent magnetism salient poles of stator (13), armature winding (14) unshakable in one's determination, electric excitation winding (15), rotor (16), permanent magnet (17), overload current protector (22).
The axial arrangement generalized section that Fig. 2 is " the polynary Magneticflux-switching type car wheel electromotor of composite excitation ".
Shell (1), cooling fin (2), front end housing (3), rear end cap (4), O-ring seals (5), end cap ribs (6), spring washer (7), rotating shaft sealing assembly (8), small end cover (9), rotating shaft (10), fore bearing (11), rear bearing (12), the two permanent magnetism salient poles of stator (13), armature winding (14) unshakable in one's determination, electric excitation winding (15), wire hole seal (18), lead-out wire (19), overload current protector (22).
Embodiment
For realizing above-mentioned purpose, following concrete implementer's formula is taked in the utility model patented invention.
" the polynary Magneticflux-switching type car wheel electromotor of composite excitation ", comprise 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 (5), 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 (16), the two permanent magnet cardiac prominence utmost points (13) of stator, the polynary electricity of three-phase/magnetic channel armature winding (14), the main part such as electricity excitation winding (15) forms.As Fig. 2.
With shell and the front/rear end cap of cooling fin, be by machine work, to be formed by extruding or die casting or casting by the metal material Tu, 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 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 automobile purposes, selects the steel machine of the different trades mark, specification to process.
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 appropriate cambered surface and is repaiied and cut, can reduce the deal of back-emf each harmonic like this, make counter potential waveform more sinusoidal, electromagnetic torque pulsation can effectively be cut down.
Two permanent magnet cardiac prominence utmost point stators, be that size on request, the punching of shape are overrided to form by silicon steel sheet, and this has two kinds of methods: method one, and after silicon steel sheet is washed into to full wafer, closed assembly is pressed into certain thickness and forms; Method two, be divided into same equal portions by 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, then is assembled into the one-piece stator iron core; 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 embeds respectively a slice same polarity permanent magnet in two grooves along stator shaft orientation, be to be embedded with 2 permanent magnets in each salient pole, the permanent magnet embedded 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, form two permanent magnet cardiac prominence utmost points, the permanent magnet embedded 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 periphery more than stator core yoke section, double as insulating barrier with glass insulating tape coating bonding, enhancing again.
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: first will be divided into some unit electricity/flux path with phase sequence armature winding, again will with the electricity of unit/flux path armature winding respectively embedding press electricity/magnetic Circuit Design salient pole of correspondence mutually in stator circumference, be connected in series, form the electricity/flux path of a separate unit, then by each unit electricity/flux path armature winding of homophase, after the serial connection of respectively hanging oneself overload current protector, be connected in parallel, become one and there is mutually multiple unit electricity/flux path winding, for example: stator 12 utmost points in Fig. 1, polynary electricity/the flux path of rotor 10 utmost points, the polynary magnetic pass switching electromotor of composite excitation, 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 embedding respectively are in the salient pole that 90 degree mechanical angles distribute in the stator core circumference, be connected in series, form F1 electricity/flux path.The salient pole that A2 a is radially corresponding with F1 path winding around stator circumference with A2 b embedding, be connected in series, and forms F2 electricity/flux path.F1, F2 two-way electricity/flux path electricity pivot, around Group, are connected in parallel 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 the electromagnetism path armature winding of remaining B phase and C phase is around with method of attachment, with A, electricity/flux path armature winding is identical mutually, as Fig. 1.
The overload current protector, be connected in series with the head end of each electricity/flux path Dian Shu Rao Group, then be connected in parallel with other electricity of homophase/flux path armature winding, form a Dian Shu Rao Group who there is mutually multiple unit electricity/flux path, the overload current protector is arranged on the inwall of motor housing rear end, as Fig. 2.
The electricity excitation winding, between two adjacent two permanent magnet cardiac prominence utmost points, an electric excitation winding pole coil is arranged, each electric excitation winding pole coil is across in groove space, adjacent two the two extremely hithermost permanent magnet of permanent magnet cardiac prominence tops, each two permanent magnet cardiac prominence utmost point has 2 electric excitation winding pole coil limits like this, be that every groove has 1 coil side, and it is identical with electromagnetism polarity to be serially connected in the sense of current.
Although above-mentioned, 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, within these changes and improvements all belong to the protection range of requirement of the present invention.
The beneficial effect of the invention:
" the polynary Magneticflux-switching type car wheel electromotor of composite excitation " is all kinds of motor advantages of collection and the innovative motor that has overcome they drawbacks.It had both retained the high efficiency advantage of magneto, by structural change, had captured the permanent magnetic material non-refractory and easily demagnetization and the easily technical barrier of fault; Also brought into play switched reluctance machines electricity/magnetic circuit independence good, robustness is good, the tool fault-tolerance, and the speciality that reliability is strong, overcome the cogging torque pulsation existed large, the large and inefficient shortcoming of noise; Also overcome the shortcoming of the flux control difficulty of magnetic pass switching electromotor simultaneously, by increasing electric excitation winding, by the sense of current that changes electric excitation winding and the method for amplitude, that realizes controlling motor-field increases magnetic or weak magnetic, effectively widened the speed adjustable range of motor, make wheel hub motor there is the large torque of Heng Zhuanjuqu, the wide range speed control of Heng Gongshuaiqu, power density is high, efficiency is high, reliability is high, smooth running, the good characteristic that noise is low.This kind of motor also can be designed to different high or low powers, the number of phases, number of poles, rotating speed as required, both can be used as drive motor, also can be used as generator, hermetically sealed design, applicable adverse circumstances (high temperature and high speed, muddy water splash, stir up a cloud of dust) and use under water.Be specially adapted to the use of pure electric automobile and hybrid vehicle, will greatly advance domestic electric automobile industrial expansion.
Because the independence of each electricity/magnetic circuit is better, if when certain electricity of certain phase/flux path armature winding breaks down, substantially can not affect the armature winding normal operation of other non-fault electricity/flux paths.Therefore but the motor tape jam continues operation, has high reliability.
The stator core salient pole adopts two permanent magnetism, and this has and well slacken effect cogging torque, adds the radian of rotor tooth top cambered surface and cuts the tooth method, both synergies, finally make the cogging torque of motor reduce to minimum, 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 produced 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 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, both without permanent magnet, also without winding, simple in structure, firm, suitable high speed, high temperature operation.
Claims (6)
1. polynary its technical characterictic of Magneticflux-switching type car wheel electromotor of composite excitation is that structure is cut the main compositions such as tooth rotor, the polynary electricity of three-phase/flux path Dian pivot Rao Zu ﹑ electricity Li magnetic Rao Zu ﹑ current overload safety device, winding leading-out wire, lead-out wire black box, front/rear end cap, front/rear end cap O RunddichtringO, front end housing rotating shaft sealing assembly by the shell with cooling fin, rotating shaft, front/rear bearing, spring washer, two permanent magnet cardiac prominence utmost point stator, tooth top cambered surface radian.
2. the polynary Magneticflux-switching type car wheel electromotor of composite excitation as claimed in claim 1, technical characterictic is that tooth top cambered surface radian is cut the tooth rotor size on request, the punching of shape are overrided to form by silicon steel sheet, 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 and cut through appropriate radian.
3. the polynary Magneticflux-switching type car wheel electromotor of composite excitation as claimed in claim 1, technical characterictic is that by silicon steel sheet, size on request, the punching of shape are overrided to form two permanent magnet cardiac prominence utmost point stators, this has two kinds of methods: method one, after silicon steel sheet is struck out to full wafer, closed assembly is pressed into certain thickness and forms; Method two, be divided into same equal portions by 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, then is assembled into the one-piece stator iron core; 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. the polynary Magneticflux-switching type car wheel electromotor of composite excitation as claimed in claim 1, technical characterictic is that each salient pole unshakable in one's determination embeds respectively a slice same polarity permanent magnet in two grooves along stator shaft orientation, be to be embedded with 2 permanent magnets in each salient pole, the permanent magnet embedded 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, form two permanent magnet cardiac prominence utmost points, the permanent magnet embedded with adjacent salient pole unshakable in one's determination is heteropolarity; Salient pole periphery more than stator core yoke section, double as insulating barrier with glass insulating tape coating bonding, enhancing again.
5. the polynary Magneticflux-switching type car wheel electromotor of composite excitation as claimed in claim 1, technical characterictic is to be divided into A phase armature winding, B phase armature winding, C phase armature winding, they separately respectively embedding around in stator circumference by each phase sequence, 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, respectively embedding designs corresponding salient pole unshakable in one's determination around number of poles and electricity/flux path of press motor in stator circumference, be connected in series, form an electricity/flux path independently.
6. the polynary Magneticflux-switching type car wheel electromotor of composite excitation as claimed in claim 1, technical characterictic is all across being wound with 1 electric excitation winding pole coil between two adjacent two permanent magnet cardiac prominence utmost points, each electric excitation winding pole coil across around adjacent 2 two permanent magnet cardiac prominence pole spans in groove space, hithermost permanent magnet top, 1 electric magnet exciting coil limit is respectively arranged in each groove space, permanent magnet top, be that each two permanent magnet cardiac prominence utmost point is wound with respectively 2 electric magnet exciting coil limits, and it is identical with electromagnetism polarity to be serially connected in the exciting current direction.
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| CN2013201301685U CN203326846U (en) | 2013-03-21 | 2013-03-21 | Hybrid excitation multi-element magnetic flux switching type automobile hub motor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107862143A (en) * | 2017-11-13 | 2018-03-30 | 南京工程学院 | Magnetic flux switching straight line motor lines point connecting structure and horizontal impulse force suppressing method |
| CN111527677A (en) * | 2017-12-28 | 2020-08-11 | 株式会社电装 | Rotating electrical machine |
| CN113646996A (en) * | 2019-03-29 | 2021-11-12 | 株式会社电装 | Rotating electrical machine |
-
2013
- 2013-03-21 CN CN2013201301685U patent/CN203326846U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107862143A (en) * | 2017-11-13 | 2018-03-30 | 南京工程学院 | Magnetic flux switching straight line motor lines point connecting structure and horizontal impulse force suppressing method |
| CN107862143B (en) * | 2017-11-13 | 2021-02-19 | 南京工程学院 | Linear motor line point type connecting structure for magnetic flux switching and transverse impulse suppression method |
| CN111527677A (en) * | 2017-12-28 | 2020-08-11 | 株式会社电装 | Rotating electrical machine |
| CN113646996A (en) * | 2019-03-29 | 2021-11-12 | 株式会社电装 | Rotating electrical machine |
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Granted publication date: 20131204 Termination date: 20140321 |