WO2014060228A3 - Rotor arrangement for a permanent magnet electric machine - Google Patents

Rotor arrangement for a permanent magnet electric machine Download PDF

Info

Publication number
WO2014060228A3
WO2014060228A3 PCT/EP2013/070765 EP2013070765W WO2014060228A3 WO 2014060228 A3 WO2014060228 A3 WO 2014060228A3 EP 2013070765 W EP2013070765 W EP 2013070765W WO 2014060228 A3 WO2014060228 A3 WO 2014060228A3
Authority
WO
WIPO (PCT)
Prior art keywords
permanent magnet
electric machine
rotor arrangement
magnet electric
arrangement
Prior art date
Application number
PCT/EP2013/070765
Other languages
German (de)
French (fr)
Other versions
WO2014060228A2 (en
Inventor
Steven Andrew Evans
Jochen Geissler
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 EP13774399.3A priority Critical patent/EP2909921A2/en
Publication of WO2014060228A2 publication Critical patent/WO2014060228A2/en
Publication of WO2014060228A3 publication Critical patent/WO2014060228A3/en

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

The invention relates to a rotor arrangement (4) for an electric machine (1), comprising: - a permanent magnet (7); and - at least two pole shoes (42), between which the permanent magnet (7) is arranged, with the result that the magnetization direction of said permanent magnet in a first section (71) of the permanent magnet (7) is aligned substantially in the direction of arrangement of the pole shoes (42); wherein, in a second section (72) of the permanent magnet (7), the magnetization direction deviates from the direction of arrangement.
PCT/EP2013/070765 2012-10-18 2013-10-07 Rotor arrangement for a permanent magnet electric machine WO2014060228A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13774399.3A EP2909921A2 (en) 2012-10-18 2013-10-07 Rotor arrangement for a permanent magnet electric machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012218980.7 2012-10-18
DE102012218980.7A DE102012218980A1 (en) 2012-10-18 2012-10-18 Rotor arrangement for a permanent magnet excited electrical machine

Publications (2)

Publication Number Publication Date
WO2014060228A2 WO2014060228A2 (en) 2014-04-24
WO2014060228A3 true WO2014060228A3 (en) 2015-04-23

Family

ID=49326657

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/070765 WO2014060228A2 (en) 2012-10-18 2013-10-07 Rotor arrangement for a permanent magnet electric machine

Country Status (3)

Country Link
EP (1) EP2909921A2 (en)
DE (1) DE102012218980A1 (en)
WO (1) WO2014060228A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3179615A1 (en) * 2015-12-11 2017-06-14 Siemens Aktiengesellschaft Permanent magnet for a rotor of an external rotor machine
EP3579383B1 (en) * 2018-06-07 2020-12-23 maxon international ag Torque-optimised multipolar rotor for an electric motor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020070620A1 (en) * 2000-06-16 2002-06-13 Shinya Naito Permanent magnet rotor and method of making the same
US20120200189A1 (en) * 2011-02-08 2012-08-09 Kabushiki Kaisha Yaskawa Denki Rotating electrical machine
US20120217834A1 (en) * 2011-02-28 2012-08-30 Uqm Technologies Inc. Brushless pm machine construction enabling low coercivity magnets

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020070620A1 (en) * 2000-06-16 2002-06-13 Shinya Naito Permanent magnet rotor and method of making the same
US20120200189A1 (en) * 2011-02-08 2012-08-09 Kabushiki Kaisha Yaskawa Denki Rotating electrical machine
US20120217834A1 (en) * 2011-02-28 2012-08-30 Uqm Technologies Inc. Brushless pm machine construction enabling low coercivity magnets

Also Published As

Publication number Publication date
EP2909921A2 (en) 2015-08-26
DE102012218980A1 (en) 2014-05-08
WO2014060228A2 (en) 2014-04-24

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