WO2020012421A3 - Elektromotor mit einstückigem innenläufer-rotorkern - Google Patents

Elektromotor mit einstückigem innenläufer-rotorkern Download PDF

Info

Publication number
WO2020012421A3
WO2020012421A3 PCT/IB2019/055947 IB2019055947W WO2020012421A3 WO 2020012421 A3 WO2020012421 A3 WO 2020012421A3 IB 2019055947 W IB2019055947 W IB 2019055947W WO 2020012421 A3 WO2020012421 A3 WO 2020012421A3
Authority
WO
WIPO (PCT)
Prior art keywords
rotor core
electric motor
integrally formed
inner rotor
formed inner
Prior art date
Application number
PCT/IB2019/055947
Other languages
English (en)
French (fr)
Other versions
WO2020012421A2 (de
Inventor
Pascual GUARDIOLA
Uwe Lasebnick
Original Assignee
Nidec Corporation
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 Nidec Corporation filed Critical Nidec Corporation
Priority to CN201980046774.9A priority Critical patent/CN112425037A/zh
Priority to US17/259,801 priority patent/US20210313849A1/en
Publication of WO2020012421A2 publication Critical patent/WO2020012421A2/de
Publication of WO2020012421A3 publication Critical patent/WO2020012421A3/de

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/002—Extruding materials of special alloys so far as the composition of the alloy requires or permits special extruding methods of sequences
    • 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
    • H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
    • 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
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures

Landscapes

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

Abstract

Die Erfindung betrifft einen einstückig ausgeformten Innenläufer-Rotorkern (3) für einen bürstenlosen Elektromotor aufweisend eine Mittelbohrung (4), wobei der Rotorkern (3) mittels eines Kaltfließpressverfahrens hergestellt ist.
PCT/IB2019/055947 2018-07-13 2019-07-12 Elektromotor mit einstückigem innenläufer-rotorkern WO2020012421A2 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201980046774.9A CN112425037A (zh) 2018-07-13 2019-07-12 具有一件式内转子-转子芯的电动机
US17/259,801 US20210313849A1 (en) 2018-07-13 2019-07-12 Electric motor comprising an integrally formed inner rotor core

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018116988.4A DE102018116988A1 (de) 2018-07-13 2018-07-13 Elektromotor mit einstückigem Innenläufer-Rotorkern
DE102018116988.4 2018-07-13

Publications (2)

Publication Number Publication Date
WO2020012421A2 WO2020012421A2 (de) 2020-01-16
WO2020012421A3 true WO2020012421A3 (de) 2020-03-19

Family

ID=67989030

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2019/055947 WO2020012421A2 (de) 2018-07-13 2019-07-12 Elektromotor mit einstückigem innenläufer-rotorkern

Country Status (4)

Country Link
US (1) US20210313849A1 (de)
CN (1) CN112425037A (de)
DE (1) DE102018116988A1 (de)
WO (1) WO2020012421A2 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1249918A1 (de) * 2001-04-09 2002-10-16 Kabushiki Kaisha Moric Rotor für eine elektrische Maschine des permanentmagnetischen Typs
US20110291498A1 (en) * 2009-02-09 2011-12-01 Takatoshi Sakata Electric Motor and Rotor
JP2014187828A (ja) * 2013-03-25 2014-10-02 Mitsuba Corp モータ用ロータ、ブラシレスモータ及びモータ用ロータの製造方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4910861A (en) * 1988-10-07 1990-03-27 Emerson Electric Co. Method of manufacturing retention structure for electric motor rotor magnets
JP2002369464A (ja) * 2001-06-04 2002-12-20 Mitsuba Corp 磁石発電機の製造方法
JP2003285228A (ja) * 2002-03-28 2003-10-07 Minebea Co Ltd スピンドルモータ用ロータハブの製造方法
JP4167721B2 (ja) * 2005-06-30 2008-10-22 ミネベアモータ株式会社 Ｄｃモータ
JP4856940B2 (ja) * 2005-12-09 2012-01-18 日立オートモティブシステムズ株式会社 回転電機およびその製造方法
CN102280976B (zh) * 2010-06-10 2013-01-23 怀特(中国)驱动产品有限公司 定子的加工工艺方法
JP5842365B2 (ja) * 2011-04-02 2016-01-13 日本電産株式会社 ロータユニット、回転電機、およびロータユニットの製造方法
JP6008228B2 (ja) * 2011-12-26 2016-10-19 日本電産株式会社 モータ
DE102014202572A1 (de) * 2014-02-12 2015-08-13 BSH Hausgeräte GmbH Elektrischer Antriebsmotor, Pumpe und Haushaltsgerät mit einer solchen Pumpe
KR101829569B1 (ko) * 2014-03-31 2018-02-14 미쓰비시덴키 가부시키가이샤 농형 모터의 회전자 및 농형 모터
DE112016003271T5 (de) * 2015-07-21 2018-04-05 Asmo Co., Ltd. Motor
US20170126087A1 (en) * 2015-10-30 2017-05-04 Rod F. Soderberg Device including material originating from magnetic particles providing structural and magnetic capabilities

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1249918A1 (de) * 2001-04-09 2002-10-16 Kabushiki Kaisha Moric Rotor für eine elektrische Maschine des permanentmagnetischen Typs
US20110291498A1 (en) * 2009-02-09 2011-12-01 Takatoshi Sakata Electric Motor and Rotor
JP2014187828A (ja) * 2013-03-25 2014-10-02 Mitsuba Corp モータ用ロータ、ブラシレスモータ及びモータ用ロータの製造方法

Also Published As

Publication number Publication date
US20210313849A1 (en) 2021-10-07
DE102018116988A1 (de) 2020-01-16
WO2020012421A2 (de) 2020-01-16
CN112425037A (zh) 2021-02-26

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