EP2483993A2 - Rotor - Google Patents

Rotor

Info

Publication number
EP2483993A2
EP2483993A2 EP10763170A EP10763170A EP2483993A2 EP 2483993 A2 EP2483993 A2 EP 2483993A2 EP 10763170 A EP10763170 A EP 10763170A EP 10763170 A EP10763170 A EP 10763170A EP 2483993 A2 EP2483993 A2 EP 2483993A2
Authority
EP
European Patent Office
Prior art keywords
rotor
rotor body
permanent magnets
cuff
pockets
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Withdrawn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
EP10763170A
Other languages
German (de)
English (en)
Inventor
Ulrich Hartmann
Oliver Memminger
Joachim Mucha
Matthias Tutsch
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP2483993A2 publication Critical patent/EP2483993A2/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Withdrawn legal-status Critical Current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
    • H02K1/278—Surface mounted magnets; Inset magnets
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49009—Dynamoelectric machine
    • Y10T29/49012—Rotor

Definitions

  • the invention relates to a rotor body with permanent magne ⁇ th a rotary dynamoelectric machine.
  • the permanent magnets are mounted in permanent magnet synchronous machines by very large manufacturing effort on the rotor body.
  • EP 1 860 755 A2 describes a possibility in which a base body carries a magnet, which in turn is held by a covering hood and screws on the base body, wherein the base body itself is fastened to a holder.
  • a synchronous linear motor is known, with a primary part provided with a winding and a secondary part, which consists of an elongated Tooplat ⁇ te, in compliance with the Polillersrasterma- ßes from brittle and korrosionsan devisem material best-. Hanging, finished magnetized permanent magnets are glued.
  • the solution of the object is achieved by a rotor of a rotary dynamoelectric machine with permanent magnets, which are arranged on the circumference of a rotor body, wherein the permanent magnets are positioned and fixed by at least one circumferentially closed cuff.
  • the sleeve is a comparatively easy to manufacture ⁇ the component made of sheet metal, which is preferably made of a metal or fiberglass. It is placed as a complete draw ⁇ edged sleeve around the rotor body and is fixed on it by spot welding, rivets or screws. These attachment means are preferably used in the directly adjacent to the rotor body portions of the sleeve, so the pole gaps.
  • each pocket forms a pole, each formed by a single magnet.
  • each pole is formed by a plurality of individual magnets which are arranged inside a pocket axially behind one another and / or next to one another. This facilitates assembly because the magnet for controlling Strengthens ⁇ te are lower. Furthermore, the storage of the permanent magnets is optimized, since now with a plurality of identical permanent magnets, which are advantageously designed cuboid, different diameters, under ⁇ different axial lengths of the rotor body and different Poannonen can be realized on the rotor body.
  • the cuff forms a circumferentially closed
  • the rotor body Component on the rotor body, so that the rotor body optionally viewed over its axial length has one or more ⁇ re such cuffs.
  • the cuff is part of a tiered Endlosma ⁇ terials on a roll with a predetermined width.
  • the material is now removed from the roller and fixed, for example, by an overlap of the sleeve ends in the pole gap by the fastening means on the rotor body.
  • the continuous material is of such a material thickness in ra ⁇ dialer direction, so that bending during assembly as well as a sufficient retention of the permanent magnets in the operating the dynamoelectric machine is ensured.
  • the cuff according to the invention thus also facilitates the design of pockets in the case of external and internal rotors and the retention of the permanent magnets.
  • the cuff can be divided into individual circumferentially extending segments, so that, for example, cuff parts which form two or more pockets, in particular by overlapping be fixed in the area of the pole gaps on the rotor body.
  • FIG. 3 is a perspective view of a partial section of a cuff
  • FIG. 4 shows a perspective view of a sleeve of a
  • FIG. 6 shows a partial cross section of an inner rotor.
  • a rotor 1 of a permanent-magnet synchronous machine for wind power generators or tidal power plants, with a rated power in particular greater than 1 MW, is designed as a solid or solid rotor body 4 in the axial direction.
  • a closed cuff 2 is in the circumferential direction be ⁇ seeks arranged, considered to ⁇ together with the surface of the rotor body 4 in the axial Rich ⁇ tung pockets 8 formed in which the perma- to nentmagnete 3 are located.
  • Perma ⁇ nentmagnete 3 can be arranged per axially extending pocket 8 behind the other and / or next to each other. This has in particular for the storage of the permanent magnets 3 advantages, since thus different pole widths can be formed on the rotor body 4 with the existing permanent magnet 3.
  • this rotor body 1 is shrunk onto a shaft 7 or connected in a rotationally fixed manner in another way. Since, in particular in wind turbines that are to have the lowest possible mass in the nacelle is arranged ⁇ electrical equipment, advantageously the rotor 1, as shown in FIG 1 schematically by a Speichenan- arrangement 9 with the shaft 7 is connected.
  • the rotor body 4 only has only a radially magnetically required thickness. This rotor body 4 designed in this way is mechanically connected to the spoke arrangement 9.
  • FIG. 2 shows a rotor 1 of an outer rotor of a permanent ⁇ excited dynamoelectric synchronous machine, in which the sleeve 2 is arranged on the inside of the rotor body 4, and there is also axially extending pockets 8 ausbil ⁇ det, in which permanent magnets 3 are used.
  • FIG. 3 shows in perspective view a partial section of a sleeve 2 with the gradations and with ⁇ stuffs for fixing the cuff 2 on the rotor body 4. This is exemplified realized in FIG 3 by means of pre-punched holes in the pole gaps of the sleeve 2, this Lü- can be bolted or riveted to the rotor body 4.
  • a plurality of axially distributed fastening means are to be provided per pole gap.
  • FIG. 4 shows, in a further perspective illustration, the basic arrangement of the sleeve 2 on a rotor body 4 of an external rotor motor. There, for example, closes the sleeve 2 with the rotor body 4 axially flush.
  • FIG. 5 shows in a section a partial cross section of an external rotor, in which, on the rotor body 4, by fastening 5, which hold the cuff 2 on the rotor body 4 as rivets or screws, the permanent magnets 3 are finally positioned on the rotor body 4.
  • the permanent magnets 3 are used, which can be stand ⁇ shown in principle also consist of several individual magnets per bag 8, and / or axially behind one another and / or arranged side by side above the other.
  • the pockets are formed 8 through the cylindrically shaped surface of the Rotorkör ⁇ pers 4, and the steepness of the cuff. 2
  • the step is designed in such a way that the pockets 8 have cross-sections which are rectangular in shape, taking into account the curvature of the surface of the rotor body 4 substantially.
  • the surface of the rotor body 4 is already provided with axial grooves, which together with the stage of the cuff 2 pockets 8 form.
  • the permanent magnets are fixed by a potting 3 additional 6 in their Ta ⁇ rule. 8

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 rotor (1) d'une machine dynamoélectrique rotative, comportant des aimants permanents (3) disposés à la périphérie d'un corps de rotor (4), lesdits aimants permanents (3) étant positionnés et fixés par l'intermédiaire d'au moins un manchon (2) fermé dans le sens périphérique.
EP10763170A 2009-09-29 2010-09-27 Rotor Withdrawn EP2483993A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009043419 2009-09-29
PCT/EP2010/064270 WO2011039143A2 (fr) 2009-09-29 2010-09-27 Rotor

Publications (1)

Publication Number Publication Date
EP2483993A2 true EP2483993A2 (fr) 2012-08-08

Family

ID=43639438

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10763170A Withdrawn EP2483993A2 (fr) 2009-09-29 2010-09-27 Rotor

Country Status (4)

Country Link
US (1) US20120187793A1 (fr)
EP (1) EP2483993A2 (fr)
CN (1) CN102549885A (fr)
WO (1) WO2011039143A2 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2508749B1 (fr) 2011-04-04 2013-09-04 Siemens Aktiengesellschaft Procédé destiné au montage d'une machine électrique
KR101870450B1 (ko) * 2012-07-04 2018-06-22 엘지이노텍 주식회사 모터
EP2731232B1 (fr) * 2012-11-08 2019-01-30 GE Renewable Technologies Wind B.V. Générateur pour éolienne
EP2930825A1 (fr) * 2014-04-11 2015-10-14 Siemens Aktiengesellschaft Montage d'aimants permanents sur un rotor d'une machine électrique
EP2963774B1 (fr) * 2014-07-01 2020-05-13 Siemens Aktiengesellschaft Élément multipolaire pour une machine électrique
GB201504283D0 (en) 2015-03-13 2015-04-29 Rolls Royce Plc Sleeve for an electrical machine
EP3082202A1 (fr) 2015-04-17 2016-10-19 Siemens Aktiengesellschaft Corps de bague de collecteur pour un rotor d'une machine dynamoélectrique tournante à excitation électrique
US10439350B2 (en) 2015-05-29 2019-10-08 Siemens Aktiengesellschaft Arrangement for guiding and/or holding electrically conductive sliding contact elements
CN105186743B (zh) * 2015-09-10 2017-11-14 华中科技大学 一种制作永磁电机的转子机构的方法
ES2742211T3 (es) 2015-09-21 2020-02-13 Siemens Ag Máquina eléctrica con ranuras de refrigeración radiales y central eólica
CN106787510B (zh) * 2016-12-25 2023-03-24 中船重工电机科技股份有限公司 永磁调速电机转子上的磁钢装配工装及其装配方法
CN110011443B (zh) * 2019-04-11 2020-03-13 浙江大学 永磁风力发电机的磁极固定装置及永磁风力发电机
CN110350692A (zh) * 2019-08-02 2019-10-18 艾德斯汽车电机无锡有限公司 一种halbach阵列电机转子
DE102019122969A1 (de) * 2019-08-27 2021-03-04 Schaeffler Technologies AG & Co. KG Aktivteil einer elektrischen Maschine, elektrische Maschine und Verfahren zur Herstellung einer vormontierten Baugruppe für den Aktivteil
EP4037153A1 (fr) * 2021-02-02 2022-08-03 Siemens Gamesa Renewable Energy A/S Corps de rotor pour machine à aimant permanent

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4742259A (en) * 1987-05-11 1988-05-03 Franklin Electric Co., Inc. Permanent magnet rotor for electric motor
DE29520879U1 (de) 1995-02-03 1996-04-11 Krauss-Maffei AG, 80997 München Synchron-Linearmotor
DE19514765A1 (de) * 1995-04-21 1996-10-24 Siemens Ag Dauermagneterregter Läufer für eine elektrische Maschine
FI113308B (fi) * 2001-06-14 2004-03-31 Abb Oy Kestomagneettielementti ja sähkökone
FI117581B (fi) * 2004-12-23 2006-11-30 Abb Oy Kestomagneettikoneen roottori
EP1788690B1 (fr) * 2005-11-18 2010-05-12 Askoll Holding S.r.l. Procédé de fabrication d'un rotor à aimant permanent pour moteur synchrone en particulier pour une pompe de machine à laver à usage domestique et industriel et autres, et rotor correspondant
GB2438443A (en) * 2006-05-27 2007-11-28 Converteam Ltd Rotor magnet retaining arrangement suitable for low-speed large-diameter electrical generators
DK2063117T3 (en) * 2007-11-26 2016-12-19 Siemens Ag A device for a direct drive generator, a direct drive generator, turbine and the method for mounting a generator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011039143A2 *

Also Published As

Publication number Publication date
WO2011039143A3 (fr) 2011-05-26
CN102549885A (zh) 2012-07-04
US20120187793A1 (en) 2012-07-26
WO2011039143A2 (fr) 2011-04-07

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