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WO2013001480A2 - Roue de véhicule ferroviaire équipée d'un moteur dans la roue - Google Patents

Roue de véhicule ferroviaire équipée d'un moteur dans la roue Download PDF

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Publication number
WO2013001480A2
WO2013001480A2 PCT/IB2012/053275 IB2012053275W WO2013001480A2 WO 2013001480 A2 WO2013001480 A2 WO 2013001480A2 IB 2012053275 W IB2012053275 W IB 2012053275W WO 2013001480 A2 WO2013001480 A2 WO 2013001480A2
Authority
WO
WIPO (PCT)
Prior art keywords
stator
rotor
cooling
wheel
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IB2012/053275
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English (en)
Other versions
WO2013001480A3 (fr
Inventor
Gyula István GYÖKÉR
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2013001480A2 publication Critical patent/WO2013001480A2/fr
Publication of WO2013001480A3 publication Critical patent/WO2013001480A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
    • B61C9/38—Transmission systems in or for locomotives or motor railcars with electric motor propulsion
    • B61C9/46—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors forming parts of wheels
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/22—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of hollow conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • H02K9/197—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance

Definitions

  • the present invention relates to a railway vehicle wheel comprising an electric motor directly driving the railway vehicle wheel, the electric motor comprising a stator and a rotor, where the stator of the electric motor comprising a stator disk fastened onto a stationary tubular shaft of the railway vehicle, a plurality of soft magnetic cores axially arranged and incorporated in the stator disc, stator winding arranged on the respective iron cores; and the rotor of the electric motor comprising two rotor disks arranged on both sides of the stator and journalled to the tubular shaft via bearings, short circuiting windings or permanent magnets attached to the rotor disks, a ring surrounding the stator and clamping the rotor disks, where the ring clamping the rotor disks together and the wheel rim are fastened together or consist of one piece.
  • the invention is such a structure of a railway vehicle wheel driven directly by an elec- trie motor where the embedded electric motor is a symmetrical-, outer-rotor-, axial- flux- , multi-pole one with concentrated windings.
  • Such kind of electric motors consists of a stator built onto the stationary vehicle wheel shaft with stator coils on soft magnetic cores while the rotor consisting of two disks on both sides of the stator is journalled to the shaft via bearings, permanent magnets or shorting winding on the rotor disks and a ring setting together the disks encapsulating the stator.
  • the setting ring and the vehicle wheel rim are fixed together or consist of one joint piece.
  • an inner rotor motor is suitable to realize a ve- hicle direct drive, but the solution is not a real hub or in-wheel drive because the motor is built alongside the wheel.
  • the inner rotor motor is not the proper one for a directly driven in-wheel motor which is mentioned for the sake of completeness only.
  • Both motors applied have wounded rotors with commutators.
  • EP 0718139 which at first sight could come under the previous theme but in point of fact it includes an inner rotor electric motor.
  • the vehicle wheel rim is journalled to such a high diameter tubular shaft via bearing which can include the electric motor too.
  • the electric motor shaft by means of a cycloid gear system is connected to an inner cogged wheel secured to the vehicle wheel outer side. Similar solution can be recognized in DE 9302351 and JP 2001-10488 too.
  • Vehicle wheel motor drive can be realized implementing inner rotor axial- flux motor too, e.g. according to WO 2008/015782.
  • Wheel drive cooling presented in US 7,256,526 is like the previous solution.
  • the incoming and outgoing air of the supplier unit is flowing forwards and backwards via the channels in the shaft.
  • Such a wheel-drive cooling system is described in patent publication EP 0868772 too.
  • a solution is promising intensive cooling where an air supply unit blows the air into the electric motor.
  • the air flow passes partly the air-gap partly the axial paths of the stator going out via ports opened on the opposite side of the stator.
  • the shaft should be oversized or weakened to provide an intensive cooling furthermore the high speed cooling air flowing via the relatively nar- row holes and supplying the air compressor is pretty noisy which is a significant disadvantage.
  • the invention should complete the task too that the incorporated into the wheel and strictly limited in volume and weight electric motor could develop enough power and torque to drive a railway vehicle.
  • a railway vehicle wheel comprising an electric motor directly driving the railway vehicle wheel, the electric motor comprising a stator and a rotor, where the stator of the electric motor comprising a stator disk fastened onto a stationary tubular shaft of the railway vehicle, a plurality of soft magnetic cores axially arranged and incorporated in the stator disc, stator winding arranged on the respective iron cores; and the rotor of the electric motor comprising two rotor disks arranged on both sides of the stator and journalled to the tubular shaft via bearings, short circuiting windings or permanent magnets attached to the rotor disks, a ring surrounding the stator and clamping the rotor disks, where the ring clamping the rotor disks together and the wheel rim are fastened together or consist of one piece.
  • the width of the stator is less than the width of the wheel rim
  • the stator is provided with a liquid cooling, where the stator coils forming the winding are surrounded by channels of the liquid cooling, and/or the stator coils are directly cooled; on the surfaces of rotor disks radial cooling ribs are shaped, the number of the radial cooling ribs on the surfaces of the rotor disks equals to the number of the rotor poles and the centre lines of the cooling ribs coincide with respective pole pitch lines.
  • stator plates are fastened to the shaft, the stator plates comprising openings in which soft magnetic core coils are fit and the interspace between the two stator plates is filled with synthetic resin.
  • cooling channels forming a cooling system are placed in planes perpendicular to the shaft so that adjacent cooling channels are displaced relating to each other in a wavelike manner.
  • stator winding is manufactured from tubular conductors also connected to a unit for circulating the cooling liquid.
  • an inner space of the in-wheel motor defined by the shaft, rotor disks and clamping ring is hermetically separated from the environment.
  • the outer surfaces of the rotor disks and the cooling ribs arranged on said outer surfaces are pro- vided with a self-cleaning layer.
  • the in-wheel motor of the railway vehicle wheel according to the present invention is featured by large power (traction force) small sizes and unsprung mass which is reached by special shaping of the stator and the rotor and their intensive cooling.
  • the invention solves the direct driving of the wheel excluding the necessity of a separate motor, gears or couplings so results in a significant reduction in vehicle mass and space and higher traction efficiency without the disadvantage of considerable growing of unsprung mass.
  • the proposed wheel motor is exclusively simple, robust and excepting the rim and the bearings - which are all at once the vehicle bearings too - eliminates the necessity of any wearing part.
  • Fig. 1 illustrates a perspective view of a preferred embodiment of the railway vehicle wheel motor according to the invention
  • Fig. 2 shows a view of a section I-II across the magnetic core and between them
  • Fig. 5 illustrates a peripheral detail view of section V marked on Fig. 2 perpendicular to the shaft plane.
  • the railway vehicle wheel is built together on a shaft 4 with a driving motor consisting of an inner stator 5 and an outer rotor 6.
  • Shaft 4 is of a hollow tubular type. Due to bearing sizes the shaft 4 diameter is relatively large hence there is no necessity to use solid shaft from mechanical considerations so this solution can reduce the vehicle mass and the unsprung mass of the in-wheel motor too. Tubular shaft makes easy to introduce different conductors to the elements of the wheel motor.
  • Shaft 4 can be locked to the corresponding vehicle parts by means of fastening slots 7 on both ends.
  • the lock is not shown since a person skilled in the art know well many solutions to perform this job some of which were mentioned in the previous review.
  • Fig. 2 in the middle there are two flanges 8 and 9 on the shaft 4. Between the two flanges in two planes are bored 3-3 radial holes 10 to introduce sepa- rate conductors. Radial holes 10 of the same plane include an angle 120° and the holes of the two separate planes are angled to each other by 60° weakening the shaft 4 minimally.
  • Stator plates 11 and 12 are fastened to the outer sides of flanges 8 and 9 with bolts 13 respectively.
  • Stator plates 11 and 12 are made of glass-filament epoxide resin or other reinforced composite well known for a person skilled in the art.
  • Between the perimeters of the stator plates 11 and 12 are linking spacers 14 which are made of similar type of electrically no conducting composite as the plates 11 and 12.
  • segment-like openings 15 are cut out facing to each other.
  • magnetic cores 16 are fit.
  • the magnetic cores are made of soft magnetic (dynamo or transformer) steel or specially pressed so called soft magnetic composite (SMC) material. In case of three-phase machines the number of magnetic cores 16 is divisible by 3, in present case this number is 33.
  • stator windings 17 are con- nected with each-other according to the known three-phase Y-scheme.
  • Three ends of stator winding are connected to cables 19 which are led out via radial holes 10 and the inner passage of the tubular shaft 4.
  • Conductors 18 of stator windings 17 can be made of rectangular copper tubes which should be connected not only to the power supply but via proper distributing means to the cooling liquid circulating system too. It is not discussed further because such a system is known for a person skilled in the art.
  • a cooling channel system 20 is built around the surface of the stator winding 17 .
  • surface cooling channels 21 are embedded in four planes perpendicular to shaft 4. The four planes are taken symmetrically and equidistant between stator plates 11 and 12.
  • Stator winding 17 is surrounded by separate wave-like cooling channels 21. Cooling channels 21 are placed side by side so that the adjacent cooling channels should be offset by a half- wave (to be in opposite phase) in order to take around both inner and outer sides of each stator coil evenly.
  • Cooling channels 21 can be made of simple tubes. Inasmuch - as it is discussed later - the cooling channels are incorporated in synthetic resin to reach a better embedding and heat flowing between the resin and the coolant, application of flexible conduit is preferable. Flexible conduit is mechanically stronger and permits practically arbitrary line routing without deformation of the cross section.
  • cooling channels 21 by their shape can be considered as consisting of radial parts and inner and outer cambered parts.
  • line routing can be various (e.g. ring shaped on the outer perimeter or spiral-shaped around the coils etc.)
  • the key to efficient cooling is to surround the stator winding 17 with the cooling channel system 20 properly.
  • cooling channels 21 are connected to the liquid cooling supplying-circulating system by means of tubes 23 passing through radial holes 10 between the two flanges 8 and 9 (see figure 2) of the tube shaft 4 via two collectors-distributors 22 placed around the shaft 4.
  • In- and outlet ends of cooling channels 21 of separate planes to be connected to the two collectors-distributors 22 are turned by an angle compared to each-other.
  • stator 5 consists of a lot of separate coils forming the stator winding 17 hence the latter should be integrated in one mechanically solid unitary structure. It is solved so that the completely assembled stator 5 with the inserted cooling system 20 is bandaged by glass-tape 24 around the linking spacers 14 next all free space between stator plates 11 and 12 is cast with synthetic resin. Parts made of compounds or plastics (stator plates 11 and 12, linking spacers 14, cooling channels 21) and synthetic resin are selected to provide a maximum of cohesion (adhesive compatibility) and proper mechanical stator 5 strength with bubble-free cast.
  • the synthetic resin 25 having high heat storage and conducting properties improves the motor heat capacity which provides a better performance in case of city vehicles fea- tured by intermittent duty.
  • the stator 5 of the in- wheel motor has excellent mechanical strength, resistance to vibrations, efficient cooling and heat endurance which is a must in case of railway drives.
  • Stator plates 11 and 12 soft magnetic cores 16, stator windings 17 altogether with the cooling channel system 20 are composing the stator 5 which parts after assembly on the shaft 4 and casting with synthetic resin 25 constitutes one solid unbreakable unit.
  • Rotor disks 28 and 29 are journalled on both sides of the stator 5 to the shaft 4 via bearings 26 and 27.
  • Bearings 26 and 27 are preferably tapered roller or other type which provide the axial support of the rotor disks 28 and 29 too.
  • rotor disks 28 and 29 are manufactured from mag- netically permeable cast or structural steel.
  • ring 30 at the same time is the usual railway vehicle wheel 1 rim with conventional running surface 2 and flange 3.
  • Rotor disks 28, 29 and permanent magnets 32 are composing the active part of the rotor 6.
  • cooling ribs 33 are shaped on the outer side surfaces of the rotor disks 28, 29 cooling ribs 33 are shaped. Number of cooling ribs 33 is equal to the number of poles of the rotor 6 and the ribs are distributed so that the centre lines of the ribs coincide with respective pole pitch lines.
  • the outer side-surfaces of the rotor disks 28, 29 just between two cooling ribs are deepened which is allowable from the point of view of magnetic flux path but gains a lot increasing the cooling surfaces and cutting the weight of the rotor disks 28, 29.
  • cooling ribs 33 can be elongated up to the disks' 28, 29 hubs and this spoke-like shaping can significantly improve the mechanical strength of the railway wheel 1.
  • the outer surface 34 of rotor disks 28, 29 are coated by a self-cleaning layer (e.g. PTFE or some nano-coating) to avoid contamination settlings reducing cooling effect.
  • a self-cleaning layer e.g. PTFE or some nano-coating
  • the supply system via the tube-conductors 18 of the stator winding 17 and/or the cooling channels 20 is circulating cooling liquid, which intensively cools the full stator.
  • the cooling ribs 33 of the rotor disks 28, 29 coming into rotation the air- flow is rapidly growing providing intensive cooling of the rotor 6.
  • Invention can meet any traction demand of - known at present - railway vehicles excepting high powered electric locomotives.
  • In-wheel motor can be incorporated into the bogie or frame of a traditional vehicle preferably by tube or portal axle. The latter is advantageous in case of low- floor vehicles.
  • the in-wheel motor offers wide range of potentials to develop new types of steerable bogies, frames and suspensions.
  • the in-wheel motor can be easy incorporated together with disc brake or brake-disc too.
  • the outline dimensions of the in-wheel motor practically are the same and the weight is max.15...20% more than of a traditional railway wheel.
  • the motor has no any "extra" so called inactive (electrically or magnetically not conductive) part such as housings, bearings, axle, etc. inasmuch as the wheel's necessary parts such as the axle, bearings (which are the vehicle axle and bearings in addition), rotor disks and the rim are playing the role of the motor inactive parts, so by this way a total integration of the wheel and the motor is realized without any compromise.
  • High level of integration can be featured by that fact that if only one of the main parts from the in-wheel motor would be removed then there is no motor and no wheel existing any more.
  • the implemented cooling system makes possible to realize a totally enclosed (IP 44 or higher degree) performance of the in-wheel motor, excluding the harmful effect of con- tamination penetration into the closed space.
  • Lifetime of the electric motor depends first of all on the aging of the built in electrical insulation materials which aging process depends on the thermal load. Stator liquid cooling excludes the overheating of the insulation providing a long life-span.
  • the cooling efficacy of ribbed rotor disks can be improved blowing them by an aux- iliary air-compressor implemented.
  • the cooling effect can be further intensified adding a bit water to the air blown which at the same time can clean the disks from any contamination.
  • Proposed by the invention dual cooling system has one more advantage: in case of overheating the stator or the rotor, the surplus heat is immediately will flow by means of the intermediary air closed and intensively circulating inside the machine into the opposite direction while a new temperature balance is not reached of course already on a lower level.
  • Cooling of the stator can be improved even more implementing direct liquid cooling of the windings using hollow copper conductors. Increasing the cooling efficacy the in- wheel motor heat loadability can be multiplied altogether with the current, torque and power performance.
  • the in-wheel motor and feeding the motor converter can be cooled by the same liquid cooling circulating system.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

L'invention concerne une roue de véhicule ferroviaire comprenant un moteur électrique à entraînement direct, dans laquelle le stator du moteur électrique est constitué par un disque de stator monté sur l'arbre tubulaire fixe, des noyaux à magnétisme doux disposés axialement, associés aux enroulements de stator et incorporés dans le disque de stator, et le rotor est constitué par deux disques de rotor montés rotatifs sur l'arbre tubulaire par l'intermédiaire de paliers, des enroulements de court-circuit ou des aimants permanents attachés aux disques, un anneau entourant le stator et fixant les deux disques l'un à l'autre, un anneau fixant les deux disques de rotor l'un à l'autre et renfermant le stator, l'anneau et la jante de la roue du véhicule étant en supplément fixés l'un à l'autre ou constituant une seule pièce assemblée, la largeur du stator (5) étant inférieure à la largeur de la jante de la roue et le stator (5) étant refroidi par liquide, les enroulements (17) du stator étant entourés par des canaux de liquide de refroidissement (21) et/ou les enroulements du stator (17) étant directement refroidis, des ailettes de refroidissement radiales (33) étant en outre formées sur les surfaces des disques (28, 29) du rotor.
PCT/IB2012/053275 2011-06-28 2012-06-28 Roue de véhicule ferroviaire équipée d'un moteur dans la roue Ceased WO2013001480A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HUP1100344 2011-06-28
HU1100344A HUP1100344A2 (en) 2011-06-28 2011-06-28 Wheel body motor for railway

Publications (2)

Publication Number Publication Date
WO2013001480A2 true WO2013001480A2 (fr) 2013-01-03
WO2013001480A3 WO2013001480A3 (fr) 2013-11-14

Family

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Family Applications (1)

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PCT/IB2012/053275 Ceased WO2013001480A2 (fr) 2011-06-28 2012-06-28 Roue de véhicule ferroviaire équipée d'un moteur dans la roue

Country Status (2)

Country Link
HU (1) HUP1100344A2 (fr)
WO (1) WO2013001480A2 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013000852A1 (de) * 2013-01-21 2014-07-24 Sew-Eurodrive Gmbh & Co Kg Schienentransportsystem und Verfahren zum Betreiben eines Schienentransportsystems
JP2015231291A (ja) * 2014-06-05 2015-12-21 株式会社神戸製鋼所 電動機
CN108045384A (zh) * 2018-01-18 2018-05-18 八方电气(苏州)股份有限公司 轨道小车驱动装置
DE102017115222A1 (de) * 2017-07-07 2019-01-10 Olav Birlem Portalkran
RU2693483C2 (ru) * 2014-09-25 2019-07-03 Зюддойче Геленкшайбенфабрик Гмбх Унд Ко. Кг Устройство сцепления
WO2020239850A1 (fr) * 2019-05-29 2020-12-03 HELDER, Michael Machine électrique, procédé de fonctionnement d'une machine électrique ainsi que jante pour un véhicule automobile à traction électrique
EP3625123A4 (fr) * 2017-05-19 2021-02-24 Cora Aero LLC Ventilateur et moteur combinés
FR3127343A1 (fr) * 2021-09-20 2023-03-24 Renault S.A.S. Stator pour machine électrique à flux axial
WO2023089095A2 (fr) 2021-11-19 2023-05-25 Schoone David Moteur électrique, en particulier destiné à être monté dans un corps de roue d'une motocyclette
CN119401697A (zh) * 2025-01-03 2025-02-07 江苏嘉轩智能工业科技股份有限公司 盘式多层外转子电机
CN119483120A (zh) * 2025-01-07 2025-02-18 大澳电器（江苏）有限公司 一种轮毂电机及用于轮毂电机的散热系统

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DE120289C (fr)
DE94350C (fr)
DE130694C (fr)
DE2501134A1 (de) 1974-01-14 1975-07-17 Acec Schnellaufendes fahrgestell mit elastischen raedern
DE3927311A1 (de) 1989-08-18 1991-02-21 Magnet Motor Gmbh Elektromotorischer schienenfahrzeug-direktantrieb
JPH0516800A (ja) 1991-07-09 1993-01-26 Railway Technical Res Inst 鉄道車両用駆動装置
JPH05328687A (ja) 1992-05-20 1993-12-10 Toshiba Corp アウタロータ電動機
JPH05344680A (ja) 1992-06-05 1993-12-24 Toshiba Toransupooto Eng Kk 車両用アウターロータ電動機
EP0582563A1 (fr) 1992-08-05 1994-02-09 ABB VERKEHRSTECHNIK Gesellschaft m.b.h. Propulsion directe pour une voue de véhicule de chemin de fer
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DE102013000852B4 (de) 2013-01-21 2023-02-23 Sew-Eurodrive Gmbh & Co Kg Schienentransportsystem und Verfahren zum Betreiben eines Schienentransportsystems
JP2015231291A (ja) * 2014-06-05 2015-12-21 株式会社神戸製鋼所 電動機
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EP3625123A4 (fr) * 2017-05-19 2021-02-24 Cora Aero LLC Ventilateur et moteur combinés
DE102017115222A1 (de) * 2017-07-07 2019-01-10 Olav Birlem Portalkran
CN108045384A (zh) * 2018-01-18 2018-05-18 八方电气(苏州)股份有限公司 轨道小车驱动装置
WO2020239850A1 (fr) * 2019-05-29 2020-12-03 HELDER, Michael Machine électrique, procédé de fonctionnement d'une machine électrique ainsi que jante pour un véhicule automobile à traction électrique
FR3127343A1 (fr) * 2021-09-20 2023-03-24 Renault S.A.S. Stator pour machine électrique à flux axial
WO2023089095A2 (fr) 2021-11-19 2023-05-25 Schoone David Moteur électrique, en particulier destiné à être monté dans un corps de roue d'une motocyclette
DE102021130345A1 (de) 2021-11-19 2023-05-25 David Schoone Elektromotor, insbesondere für den Einbau in einen Radkörper eines Motorrades
DE102021130345B4 (de) 2021-11-19 2023-10-12 David Schoone Elektromotor, insbesondere für den Einbau in einen Radkörper eines Motorrades
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CN119401697B (zh) * 2025-01-03 2025-06-27 江苏嘉轩智能工业科技股份有限公司 盘式多层外转子电机
CN119483120A (zh) * 2025-01-07 2025-02-18 大澳电器（江苏）有限公司 一种轮毂电机及用于轮毂电机的散热系统

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