WO2014086514A2 - Machine sur moyeu de roue et véhicule à voie simple - Google Patents

Machine sur moyeu de roue et véhicule à voie simple Download PDF

Info

Publication number
WO2014086514A2
WO2014086514A2 PCT/EP2013/070793 EP2013070793W WO2014086514A2 WO 2014086514 A2 WO2014086514 A2 WO 2014086514A2 EP 2013070793 W EP2013070793 W EP 2013070793W WO 2014086514 A2 WO2014086514 A2 WO 2014086514A2
Authority
WO
WIPO (PCT)
Prior art keywords
wheel hub
rotor
stator
permanent magnets
machine according
Prior art date
Application number
PCT/EP2013/070793
Other languages
German (de)
English (en)
Other versions
WO2014086514A3 (fr
Inventor
Michel Dietrich
Christian Staudenmann
Fengmei Cheng
Norbert Martin
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to CN201380063729.7A priority Critical patent/CN104837663A/zh
Publication of WO2014086514A2 publication Critical patent/WO2014086514A2/fr
Publication of WO2014086514A3 publication Critical patent/WO2014086514A3/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0038—Disposition of motor in, or adjacent to, traction wheel the motor moving together with the wheel axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0092—Disposition of motor in, or adjacent to, traction wheel the motor axle being coaxial to the wheel axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/12—Motorcycles, Trikes; Quads; Scooters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/12—Motorcycles, Trikes; Quads; Scooters
    • B60Y2200/126—Scooters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos

Definitions

  • the invention relates to a wheel hub machine, in particular wheel hub motor for a particular two-wheeled single-track vehicle, with an electric machine having a stator and a rotor, wherein the stator at least, in particular exactly 51 (fifty-one) grooves, in which an at least two-layer winding is arranged , and wherein the rotor arranged a plurality of evenly distributed over the circumference
  • the invention relates to a single-track vehicle with at least two wheels, of which at least one has a wheel hub machine as described above.
  • Wheel hub machines are often used for two-wheeled single-track vehicles, in particular so-called electric scooters.
  • gearless wheel hub motors are often provided on the rear wheel of such a single-track vehicle.
  • These are usually permanent-magnet, brushless, electrically commutated
  • Synchronous motors typically, they have an axle-fixed stator with a high number of slots, in which a winding in at least two layers
  • stators have a number of 51 (fifty-one) slots for the winding.
  • a plurality of permanent magnets is usually provided, wherein, for example, 46
  • the grooves and the permanent magnets are each distributed uniformly over the circumference of the rotor or stator.
  • the amount of material for the permanent magnets contributes a high proportion to the total cost of a such wheel hub machine, especially when rare earth magnets are used as permanent magnets.
  • the wheel hub machine with the features of claim 1 has the advantage that, with a constant stator, the amount of material for the
  • Permanent magnet is used, can be reduced by up to 50%, without the output torque or the output power of the
  • Wheel hub engine can be reduced.
  • the wheel hub machine has 56 (fifty-six) permanent magnets arranged distributed uniformly over the circumference of the rotor.
  • the magnets themselves may be made smaller, whereby a total of the amount of material for the magnets is reduced, despite the same power
  • the permanent magnets are made of rare earth magnetic material. Since the number of slots on the stator remains the same, the prior art stator can be adopted without any change, resulting in further cost advantages.
  • the permanent magnets Seen circumferentially spaced from each other.
  • the permanent magnets are not flush, but spaced from each other - seen in the circumferential direction - arranged.
  • the distance between adjacent permanent magnets is at least twice the radial air gap thickness between the rotor and the stator. Due to the distance between the permanent magnets to each other, the stray flux between the permanent magnet is a tangential
  • the permanent magnets are arranged on an iron return ring of the electric machine.
  • the return ring on recesses, in which the permanent magnets are each used in some areas.
  • the wheel hub machine is designed as a hub motor.
  • the wheel hub machine is designed as an internal rotor motor or machine.
  • the rotor has a smaller diameter than the stator and is rotatably mounted in the stator.
  • the wheel hub machine as an external rotor motor
  • the stator has a smaller diameter than the rotor, so that the stator is disposed within the rotor and the rotor is rotatably mounted around the stator.
  • the rotor is designed as a rim for a wheel of a vehicle, in particular single-track vehicle. As a result, the rotor takes on two functions at the same time, so that the wheel hub machine saves space on the vehicle,
  • the single-track vehicle according to the invention with the features of claim 7 is characterized by a wheel hub machine, as described above from. This results in the already mentioned advantages.
  • Figure 2 shows the wheel hub motor in a simplified detail
  • Figure 3 shows the wheel hub motor according to an inventive
  • Figure 1 shows a plan view of a wheel unit 1 for a two-wheeled
  • the wheel unit 1 can be used both as a front wheel and as a rear wheel unit.
  • the wheel unit 1 comprises a tire 2, a rim 3 and a wheel hub motor 4.
  • the tire 2 is fixedly arranged on the rim 3 and the wheel hub motor 4 is arranged substantially in the rim 3.
  • the wheel hub motor has for this purpose a stator 5, which is arranged fixed or can be arranged axially fixed.
  • the wheel hub motor 4 has a rotor 6 which has a larger diameter than the stator 5 and is arranged coaxially with the stator 5, so that the stator 5 is arranged completely inside the rotor 6.
  • the rotor 6 simultaneously forms the rim 3.
  • the wheel hub motor 4 is thus formed as an external rotor machine 1 1.
  • FIG. 2 shows a detailed view of the wheel hub motor 4, as it is known to be built.
  • the stator 5 has a stator winding 7, which is inserted in grooves 8 of the stator 5.
  • the stator 5 has fifty-one (51) grooves formed on its shell outer surface.
  • the winding 7 is at least two layers.
  • the winding 7 is expediently a two-layer single-tooth winding and has a winding factor of 0.944.
  • the wheel hub motor 4 is as
  • the rotor 6 has forty-six (46) on its inside
  • Permanent magnets 9 which lie flush against each other (seen in the circumferential direction) and are designed as rare-earth magnets. They are fixed to an iron yoke ring 10 of the rotor 6, wherein the
  • FIG. 9 results in the winding factor of 0.944.
  • Figure 3 shows an inventive embodiment of the wheel hub motor 4 in a simplified detail view. While the stator 5 is formed as described above, and more particularly has fifty-one slots 8 in which the coil 7 is inserted, the number of permanent magnets 9 has been increased to fifty-six (56) permanent magnets 9. For reasons of symmetry, this again results in the winding factor of 0.944. By increasing the number of permanent magnets 9 and the consequent increase in the number of pole pairs, the torque of the wheel hub motor 4 increases in
  • Anchor (or rotor) control range (without field weakening) according to the formula: where N ph corresponds to the number of phases,
  • Z p is the number of poles
  • n the number of windings per wire
  • the magnets 9 are reduced in size and arranged at a spacing from one another in the circumferential direction in order to move the magnet
  • the permanent magnets are so far reduced that the required Demagnetisierfestmaschine the wheel hub motor 4 is ensured in the application to the electric scooter.
  • the difference of the magnetic mass used in comparison to the prior art according to FIG. 2 is preferably 49%.
  • the distance between adjacent magnets is preferably at least twice the designed radial air gap thickness between stator 5 and rotor 6.
  • the tangential distance between the permanent magnet 9, the stray flux between the permanent magnet is given a tangential resistance, which reduces the flux loss approximately to zero and thereby a Reduction of the introduced
  • Magnet amount about the order of the flow losses without tangential distance between the magnets allowed without thereby torque or power of the wheel hub motor 4 can be reduced.
  • the torque curves of the wheel hub motor 4 do not change, or at least not significantly, by the embodiment of the wheel hub motor 4 according to the invention.
  • the wheel hub motor 4 according to the invention has an almost identical torque curve in the operationally relevant range up to approximately 400 rpm. There are no significant differences in efficiency due to the modification.
  • the wheel hub motor 4 according to the invention allows the stator 5 known from the prior art to be equipped with the 51 slots without any change
  • a wheel hub motor 4 is thus in a simple manner created, which has the same performance compared to the prior art, but in particular due to the cost of materials significantly cheaper than previously.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

L'invention concerne une machine sur moyeu de roue, notamment un moteur sur moyeu de roue (4) pour un véhicule à voie simple notamment à deux roues, comportant un stator (5) et un rotor (6), le stator (5) présentant au moins exactement 51 rainures dans lesquelles est disposé un enroulement (7) au moins bicouche, le rotor (6) présentant une pluralité d'aimants permanents (9) répartis uniformément sur la périphérie. Le rotor présente 56 aimants permanents (9).
PCT/EP2013/070793 2012-12-06 2013-10-07 Machine sur moyeu de roue et véhicule à voie simple WO2014086514A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201380063729.7A CN104837663A (zh) 2012-12-06 2013-10-07 轮毂电机,具有这种电机的两轮车

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012222446.7 2012-12-06
DE201210222446 DE102012222446A1 (de) 2012-12-06 2012-12-06 Radnabenmaschine, Einspurfahrzeug

Publications (2)

Publication Number Publication Date
WO2014086514A2 true WO2014086514A2 (fr) 2014-06-12
WO2014086514A3 WO2014086514A3 (fr) 2015-05-07

Family

ID=49304969

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/070793 WO2014086514A2 (fr) 2012-12-06 2013-10-07 Machine sur moyeu de roue et véhicule à voie simple

Country Status (3)

Country Link
CN (1) CN104837663A (fr)
DE (1) DE102012222446A1 (fr)
WO (1) WO2014086514A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113078746A (zh) * 2021-03-25 2021-07-06 温岭市九洲电机制造有限公司 一种电动车轮毂电机用定子及其轮毂电机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106976391A (zh) * 2017-02-22 2017-07-25 安徽易威斯新能源科技股份有限公司 一种能够切换扭力的轮毂电机及其扭力切换方法
FI128532B (fi) * 2018-03-09 2020-07-15 Maslog Oy Järjestely sähkökäyttöisessä ajoneuvossa

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4029817B2 (ja) * 2003-10-10 2008-01-09 日産自動車株式会社 回転電機の磁気回路構造
CN101262151B (zh) * 2005-08-31 2010-06-23 北京中科三环高技术股份有限公司 低速大转矩永磁无刷电机的分数槽绕组
JP4745857B2 (ja) * 2006-02-20 2011-08-10 三菱電機株式会社 電気機械
CN201113598Y (zh) * 2007-10-12 2008-09-10 深圳市深铃车业有限公司 电动车大转矩高效电机
WO2010013444A1 (fr) * 2008-07-28 2010-02-04 株式会社日立製作所 Moteur synchrone à aimant permanent
CN101920759A (zh) * 2010-08-11 2010-12-22 颜金龙 纯自发电无电瓶环保电动自行车
CN202455181U (zh) * 2012-02-21 2012-09-26 天津雅迪实业有限公司 新型电动车无刷轮毂电机定转子结构
DE102013202137A1 (de) * 2013-02-08 2014-08-14 Robert Bosch Gmbh Läuferanordnung für eine elektrische Maschine
CN103368351A (zh) * 2013-05-16 2013-10-23 天津雅迪实业有限公司 一种定转子配合的高效率无刷轮毂电机

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113078746A (zh) * 2021-03-25 2021-07-06 温岭市九洲电机制造有限公司 一种电动车轮毂电机用定子及其轮毂电机
CN113078746B (zh) * 2021-03-25 2022-12-16 温岭市九洲电机制造有限公司 一种电动车轮毂电机用定子及其轮毂电机

Also Published As

Publication number Publication date
DE102012222446A1 (de) 2014-06-12
WO2014086514A3 (fr) 2015-05-07
CN104837663A (zh) 2015-08-12

Similar Documents

Publication Publication Date Title
EP2483991B1 (fr) Moteur synchrone sans balai
EP1570564B1 (fr) Machine electrique, en particulier moteur synchrone sans balais
EP2639936B1 (fr) Machine électrique à rotor excité en permanence et rotor excité en permanence correspondant
DE102015111480A1 (de) Rotor und elektrische Maschine
DE102012103677A1 (de) Elektrische Maschine
DE102005022548A1 (de) Elektrische Maschine mit einem Wicklungssystem mit Spulengruppen
DE102014101221A1 (de) Rotor für einen Permanentmagnet-Motor, Verfahren zur Herstellung eines Rotors für einen Permanentmagnet-Motor sowie Permanentmagnet-Motor
DE102011116586A1 (de) Motor
WO2014127855A1 (fr) Moteur électrique pourvu d'un stator divisé
DE102010054847A1 (de) Bürstenloser Elektromotor oder Generator in Schalenbauweise
DE102014222064B4 (de) Elektrische Maschine
WO2018091164A1 (fr) Machine électrique optimisée
EP2550721B1 (fr) Machine électrique et dispositif de direction
EP2838180B1 (fr) Rotor d'une machine rotative dynamoélectrique
WO2014086514A2 (fr) Machine sur moyeu de roue et véhicule à voie simple
WO2013149911A1 (fr) Deux-roues à propulsion électrique
DE102016219051A1 (de) Elektromotor zum Antrieb eines ABS-Systems
WO2019233976A1 (fr) Moteur comprenant un enroulement d'entrefer à une voie
WO2013149768A2 (fr) Moteur électrique sans balai à aimants permanents enfouis
EP1976102A2 (fr) Machine électrique homopolaire
EP3050197A2 (fr) Système modulaire et procédé de fabrication d'un moteur électrique
DE102013219022A1 (de) Elektrische Drehmaschine mit innenliegenden Dauermagneten
DE102012218993A1 (de) Läuferanordnung für eine permanentmagneterregte elektrische Maschine
DE102019103737A1 (de) Elektromotor, insbesondere bürstenloser Gleichstrommotor
DE10056875A1 (de) Rotor für eine elektrische Maschine

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13773745

Country of ref document: EP

Kind code of ref document: A2

122 Ep: pct application non-entry in european phase

Ref document number: 13773745

Country of ref document: EP

Kind code of ref document: A2