EP3729606A1 - Ensemble formant rotor ou stator à aimants permanents - Google Patents

Ensemble formant rotor ou stator à aimants permanents

Info

Publication number
EP3729606A1
EP3729606A1 EP18815173.2A EP18815173A EP3729606A1 EP 3729606 A1 EP3729606 A1 EP 3729606A1 EP 18815173 A EP18815173 A EP 18815173A EP 3729606 A1 EP3729606 A1 EP 3729606A1
Authority
EP
European Patent Office
Prior art keywords
rotor
permanent magnets
stator assembly
fixed
radially outer
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.)
Withdrawn
Application number
EP18815173.2A
Other languages
German (de)
English (en)
Inventor
Juri Kniss
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.)
Volkswagen AG
Original Assignee
Volkswagen AG
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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP3729606A1 publication Critical patent/EP3729606A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
    • H02K1/2773—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect consisting of tangentially magnetized radial magnets

Definitions

  • the invention relates to a rotor or stator assembly for an electrical machine, with a rotor or stator lamination stack, which has a plurality of magnetic pockets, in each of which at least one permanent magnet is arranged.
  • DE 10 2012 016 927 A1 describes a rotor of an electric machine, which is formed with at least one recess for receiving a permanent magnet, wherein the permanent magnet is arranged together with at least one clamping element in the recess, such that the permanent magnet of the clamping element at least partially is enclosed.
  • Rotor core comprises a plurality of magnetic pockets, in each of which at least one
  • Permanent magnet arranged and with the stator or rotor core over a
  • the bonding material comprises a foamed polymer.
  • the arrangement of the permanent magnets in the magnetic pockets has a considerable influence on the power density and, in the case of electric motors, also on the torque that can be generated.
  • the invention has for its object to provide a rotor or stator assembly concerned type, which allows a high power density and / or, especially in a small space, a high torque and in particular is easy to produce.
  • the object is achieved by the rotor or stator arrangement according to the invention with the features of claim 1.
  • the invention also extends to an electrical machine, in particular an electric motor or
  • Electric drive (motor vehicle electric drive) and / or generator for use in a motor vehicle having a rotor or stator arrangement according to the invention.
  • the rotor or stator arrangement according to the invention is characterized in that the permanent magnets are arranged with lateral air gaps in the magnetic pockets and fixed at their radially inner surfaces and / or at their radially outer surfaces against lateral slippage, or are fixed so that a lateral slipping is prevented.
  • the air gaps may, for example, a width of 0.1 mm to 10.0 mm, preferably from 0.2 mm to 5.0 mm and in particular from 0.5 mm to 2.5 mm, which means in particular the gap in the circumferential direction is.
  • the permanent magnets can be positively fixed, such that they are formed on their radially inner surfaces and / or on their radially outer surfaces with convex and / or concave curvatures, wherein the magnetic pockets on the contact or contact surfaces have complementary counter contours, d. h., That the contacting (extending substantially in the circumferential direction) magnetic pocket inner surfaces are formed with complementary or corresponding mating contours.
  • the permanent magnets can also be positively fixed at their radially inner surfaces and / or at their radially outer surfaces by means of tongue and groove connections or the like be, for which purpose the permanent magnets are formed at their radially inner and / or radially outer surfaces with corresponding elements and the magnetic pockets or the respective magnetic pocket inner surfaces have complementary or corresponding counter-elements.
  • the permanent magnets can be fixed on their radially inner surfaces and / or on their radially outer surfaces by means of expansion mass, which causes a radial clamping.
  • the expansion mass is formed from an expandable material and is arranged in the manufacture of the rotor or stator assembly on the respective surfaces together with the permanent magnets in the magnetic pockets and then z. B. activated by heat, which once expanded and clamps the permanent magnets.
  • the permanent magnets may also be fixed by gluing on their radially inner surfaces and / or on their radially outer surfaces, in particular by direct bonding to the radially inner and / or radially outer magnetic pocket inner surfaces, which extend at least approximately in the circumferential direction and make direct contact with the
  • the corrosion protection or paint layer may be formed with suitable contours or positive locking elements and the magnetic pockets may have complementary or corresponding mating contours or counter-elements.
  • the permanent magnets can also be fixed on their radially inner surfaces and / or on their radially outer surfaces by means of projections projecting into the magnetic pockets.
  • the lugs are preferably integrally formed on the rotor or stator body or on the rotor or stator lamination stack. The spaces between adjacent lugs may be filled with expansion mass and / or adhesive.
  • the permanent magnets can be designed as rectangular magnets with a rectangular cross-section or as special-purpose magnets (for example with curvatures).
  • the width (in the circumferential direction) is, for example, 20 mm to 30 mm and the height (in the radial direction) is, for example, 5 mm to 10 mm.
  • the permanent magnets can also be designed as bar magnets, which preferably extend substantially in the radial direction and can have a width of, for example, 1.5 mm to 3.0 mm and a height of, for example, 8.0 mm to 12.0 mm ,
  • the expression "radially inner” and “radially outer” surfaces or “radially inner side / outer side” of the permanent magnets may not be understood so narrowly that it means only tangentially to the direction of rotation arranged surfaces of the magnets.
  • the permanent magnets could also be inclined z. B. are arranged to the circumferential direction - then are to be understood as "radially inner / outer surfaces" of the permanent magnets, the surfaces that are not surrounded by the lateral air gaps.
  • the permanent magnets can be arranged in a not shown "V-shaped design, which is not shown in detail
  • Fig. 1 shows a first embodiment of the invention.
  • Fig. 2 shows a second embodiment of the invention.
  • Fig. 3 shows a third embodiment of the invention.
  • Fig. 4 shows a fourth embodiment of the invention.
  • Fig. 5 shows a fifth embodiment of the invention.
  • Fig. 6 shows a sixth embodiment of the invention.
  • Fig. 7 shows a seventh embodiment of the invention.
  • Fig. 8 shows an eighth embodiment of the invention.
  • Fig. 9 shows a ninth embodiment of the invention.
  • 1 shows a segment of a rotor lamination stack 110 (rotor body) of a rotor arrangement 100 with a magnet pocket 120 and a permanent magnet 130 arranged therein.
  • the rotor lamination stack 110 has a plurality of such recesses or magnet pockets 120 with permanent magnets 130 arranged therein, as is fundamentally up to date known to the art.
  • the permanent magnets 130 are arranged with lateral air gaps 141 and 142 in the magnetic pockets 120, wherein the air gaps 141 and 142 extend completely over the side surfaces 133 and 134 of the permanent magnets 130, so that the side surfaces 133 and 134 are completely exposed (this is especially true for all other
  • the air gaps 141 and 142 may also extend in part beyond the radially inner surfaces 131 and / or radially outer surfaces 132 (for example over a length of 1 mm to 10 mm and in particular from 1 mm to 5 mm), such. B. indicated by the dashed line, so that these surfaces may be partially exposed (see, for example, also Fig. 7).
  • the permanent magnets 130 are fixed on their radially inner surfaces or on their radial inner sides 131 and on their radially outer surfaces or radial outer sides 132 and thereby secured against lateral slippage in the circumferential direction U or against lateral back and forth.
  • the side surfaces 133 and 134 extend at least
  • the radially inner surfaces or sides 131 and the radially outer surfaces or sides 132 extend approximately in the circumferential direction U or transverse to the radial direction R.
  • the permanent magnets 130 are bulged at their radially inner surfaces 131 and radially outer surfaces 132 formed with convex curvatures and the magnetic pockets 120 have at their contact surfaces complementary mating contours, so that the permanent magnets 130 in this way positively in the Magnetic pockets 120 are fixed or held.
  • the bulges can also be concave.
  • the bulges may also be formed only on the inner surfaces 131 or outer surfaces 132, such. B. shown in Fig. 2.
  • the permanent magnets 130 are produced with appropriate shape, for example by sintering.
  • the rotor laminated core 1 10 with the correspondingly shaped magnetic pockets 120 can be produced by corresponding laser cutting or punching of the electrical sheets or laminations.
  • the permanent magnets 130 are fixed at their radially outer surfaces 132 analogous to the embodiment shown in Fig. 1 by means of curvature form fit and are also fixed by radial clamping, including at the radially inner surfaces 131 an expansion mass or an expansion layer 150 in the Magnetic pockets 120 is arranged with, which clamps the permanent magnets 130 quasi.
  • those formed from expansion mass or the like are also fixed at their radially outer surfaces 132 analogous to the embodiment shown in Fig. 1 by means of curvature form fit and are also fixed by radial clamping, including at the radially inner surfaces 131 an expansion mass or an expansion layer 150 in the Magnetic pockets 120 is arranged with, which clamps the permanent magnets 130 quasi.
  • those formed from expansion mass or the like are formed from expansion mass or the like
  • Expansion layers 150 may be formed arbitrarily on the inner surfaces 131 and / or outer surfaces 132. D. h., In the embodiment shown in Fig. 2 can
  • Expansion layers 150 may also be provided on the radially outer surfaces 132 complementary or alternatively to the bulges.
  • the permanent magnets 130 are fixed at their radially inner surfaces 131 and at their radially outer surfaces 132 by means of adhesive 160.
  • the permanent magnets 130 are formed here as a simple producible rectangular magnets. Such a bond 160 can be combined in a simple manner with a positive fixation.
  • the permanent magnets 130 are fixed in the magnetic pockets 120 by means of tongue and groove connections on the radially inner surfaces 131, wherein such tongue and groove connections are also provided on the radially outer surfaces 132 could be.
  • the central arrangement of the tongue and groove connections is only an example, d. h., it is also an off-center arrangement possible.
  • the grooves may also be arranged in the permanent magnets 130.
  • the permanent magnets 130 are additionally glued at their radially outer surfaces by means of adhesive 160, wherein alternatively, an expansion mass 150, as shown in Fig. 2, may be provided.
  • the tongue and groove connections can be any
  • each permanent magnet 130 has geometries. Furthermore, a plurality of tongue and groove connections can be provided for each permanent magnet 130.
  • the permanent magnets 130 are formed as bar magnets, which are aligned substantially in the radial direction R and fixed on their narrow sides (ie narrow outer surfaces), such that these at their radially inner surfaces 131 by wedge-like positive connection and their radially outer surfaces 132 are fixed by means of Expansionsmasse- or expansion layer 150.
  • the bar magnets 130 may be fixed differently, analogous to the embodiments shown in FIGS. 1 to 5 or 7.
  • the permanent magnets 130 are at their radially inner surfaces 131 and at their radially outer surfaces 132 by means of
  • Air gaps 141, 142 is prevented by the lugs 125.
  • all metal sheets or lamellae may be formed with such lugs 125 or only individual metal sheets (eg only every fifth), wherein it may also be provided that the lugs 125 are deformed when the permanent magnets 130 are inserted into the pockets 120 ,
  • the rotor laminated core 110 has magnet pockets 120a and 120b of different design in which differently sized permanent magnets 130a and 130b are arranged and fixed in their radially inner surfaces and radially outer surfaces in a previously explained manner are.
  • the magnetic pockets 120 may, such. As shown in DE 10 2012 016 927 A1, also V-shaped (or with other contour) be formed and receive a plurality of permanent magnets 130, which can then be fixed according to previous explanations. Furthermore, the previously explained embodiments can be analogous to a stator or a
  • Stator arrangement are transmitted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

L'invention concerne un ensemble formant rotor ou stator (100) destiné à une machine électrique et comportant un noyau feuilleté de rotor ou de stator (110) pourvu d'une pluralité de poches d'aimant (120) dans chacune desquelles au moins un aimant permanent (130) est disposé. Les aimants permanents (130) sont disposés dans les poches d'aimant (120) avec des fentes d'air latérales (141, 142) et sont fixés au niveau de leurs faces radialement intérieures (131) et/ou de leurs faces radialement extérieures (132) afin de ne pas glisser latéralement. L'invention concerne en outre une machine électrique comportant un tel ensemble formant rotor ou stator (100).
EP18815173.2A 2017-12-18 2018-12-05 Ensemble formant rotor ou stator à aimants permanents Withdrawn EP3729606A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017223042.8A DE102017223042A1 (de) 2017-12-18 2017-12-18 Rotor- oder Statoranordnung mit Permanentmagneten
PCT/EP2018/083592 WO2019121001A1 (fr) 2017-12-18 2018-12-05 Ensemble formant rotor ou stator à aimants permanents

Publications (1)

Publication Number Publication Date
EP3729606A1 true EP3729606A1 (fr) 2020-10-28

Family

ID=64650396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18815173.2A Withdrawn EP3729606A1 (fr) 2017-12-18 2018-12-05 Ensemble formant rotor ou stator à aimants permanents

Country Status (4)

Country Link
EP (1) EP3729606A1 (fr)
CN (1) CN111512518A (fr)
DE (1) DE102017223042A1 (fr)
WO (1) WO2019121001A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020205513A1 (de) 2020-04-30 2021-11-04 Vitesco Technologies GmbH Magnetaufnahme, Rotor, Stator und Elektromotor
DE102022116139B4 (de) 2022-06-29 2024-12-19 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Rotor für eine elektrische Maschine und Verfahren zu dessen Herstellung
DE102022129204A1 (de) * 2022-11-04 2024-05-08 Minebea Mitsumi Inc. Rotor mit eingebetteten Permanentmagneten
FR3144721A1 (fr) * 2022-12-29 2024-07-05 Commissariat à l'Energie Atomique et aux Energies Alternatives Montage réversible d’aimant permanent dans une machine électrique

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3487143B2 (ja) * 1997-09-18 2004-01-13 トヨタ自動車株式会社 回転電機のロータ及び回転電機のロータの製造方法
JP4147732B2 (ja) * 2000-08-11 2008-09-10 株式会社デンソー 永久磁石型回転電機
JP3585814B2 (ja) * 2000-07-13 2004-11-04 三菱電機株式会社 磁石埋込型回転子
JP4815967B2 (ja) * 2005-09-21 2011-11-16 トヨタ自動車株式会社 永久磁石式回転電機
EP1982401A1 (fr) * 2006-02-01 2008-10-22 Continental Automotive GmbH Machine électrique
CN2874900Y (zh) * 2006-03-17 2007-02-28 上海海事大学 一种高效永磁同步电机的转子
DE102006061372A1 (de) * 2006-12-22 2008-06-26 Siemens Ag PM-Läufer mit radialen Kühlschlitzen und entsprechendes Herstellungsverfahren
CN101626173A (zh) * 2009-08-17 2010-01-13 南车株洲电力机车有限公司 一种永磁电机永磁体保护方式与固定装置
DE102009046716A1 (de) * 2009-11-16 2011-05-19 Robert Bosch Gmbh Rotor für eine elektrische Maschine
BR112013020591A2 (pt) * 2011-02-24 2016-10-18 Andritz Ritz Gmbh motor síncrono internamente excitado com rotor de imãs permanentes multiplamente protegido contra corrosão
JP5918958B2 (ja) * 2011-09-29 2016-05-18 アスモ株式会社 ロータの製造方法
KR101880097B1 (ko) * 2012-01-19 2018-07-23 삼성전자주식회사 모터와 그 로터
DE102012202529A1 (de) * 2012-02-20 2013-08-22 Robert Bosch Gmbh Dauermagnetfixierung mittels einer Einfassung
JP2013183536A (ja) * 2012-03-01 2013-09-12 Fujitsu General Ltd 電動機
US9577483B2 (en) * 2012-04-06 2017-02-21 Mitsubishi Electric Corporation Rotor for a permanent-magnet embedded motor having permanent magnets fitted into a plurality of magnet insertion holes formed in a circumferential direction
JP5998733B2 (ja) * 2012-08-08 2016-09-28 アイシン・エィ・ダブリュ株式会社 回転電機用ロータの樹脂充填装置
DE102012016927A1 (de) 2012-08-27 2014-02-27 Volkswagen Aktiengesellschaft Rotor einer elektrischen Maschine mit darin angeordneten Permanentmagneten sowie Montageverfahren zur Fixierung von Permanentmagneten in dem Rotor einer elektrischen Maschine
US8987953B2 (en) * 2012-09-11 2015-03-24 Remy Technologies, L.L.C. Permanent magnet electric machine including permanent magnets having a sleeve formed from a thermal interface material
DE102012023868A1 (de) 2012-12-06 2014-06-12 Volkswagen Aktiengesellschaft Elektrische Maschine sowie Verfahren zu ihrer Herstellung
DE102013211858A1 (de) * 2013-06-21 2014-12-24 Robert Bosch Gmbh Oberflächen- Magnete und vergrabene Magnete für einen Rotor oder Stator einer elektrischen Maschine, der eine Haltegeometrie aufweist
KR102073005B1 (ko) * 2013-07-17 2020-02-04 삼성전자주식회사 모터
JP5991545B2 (ja) * 2013-11-15 2016-09-14 株式会社デンソー 回転電機のロータ及びそのロータを備えた回転電機
DE112015001725B4 (de) * 2014-04-08 2024-12-24 Mitsubishi Electric Corporation Drehende elektrische Maschine mit eingebetteten Permanentmagneten
CN103915926B (zh) * 2014-04-10 2017-02-01 西北工业大学 一种永磁体为三角梯形的永磁同步电机转子结构
JP6041178B2 (ja) * 2014-06-11 2016-12-07 Dic株式会社 接着テープ、物品、モーター及び物品の製造方法
JP6406429B2 (ja) * 2015-03-18 2018-10-17 アイシン・エィ・ダブリュ株式会社 回転電機用のロータ及び製造方法
JP6480789B2 (ja) * 2015-04-13 2019-03-13 本田技研工業株式会社 回転電機のロータ
JP2016220267A (ja) * 2015-05-14 2016-12-22 株式会社三井ハイテック 電機子の製造方法および電機子
FR3040834B1 (fr) * 2015-09-03 2017-08-25 Valeo Equip Electr Moteur Corps de rotor a aimants permanents et machine electrique tournante comportant un tel corps

Also Published As

Publication number Publication date
WO2019121001A1 (fr) 2019-06-27
CN111512518A (zh) 2020-08-07
DE102017223042A1 (de) 2019-06-19

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