BRPI0504776A - rotor with permanent magnets - Google Patents

rotor with permanent magnets

Info

Publication number
BRPI0504776A
BRPI0504776A BRPI0504776-5A BRPI0504776A BRPI0504776A BR PI0504776 A BRPI0504776 A BR PI0504776A BR PI0504776 A BRPI0504776 A BR PI0504776A BR PI0504776 A BRPI0504776 A BR PI0504776A
Authority
BR
Brazil
Prior art keywords
rotor
permanent magnets
magnetic flux
permanent magnet
magnets
Prior art date
Application number
BRPI0504776-5A
Other languages
Portuguese (pt)
Inventor
Mario Celio Contin
Carlos Eduardo Guarent Martins
Valmir Luis Stoinski
Celia Miwa Siguimoto
Paulo Roberto Lorenzi
Hugo Gustavo Gomez Mello
Original Assignee
Weg Equipamentos Eletricos S A
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 Weg Equipamentos Eletricos S A filed Critical Weg Equipamentos Eletricos S A
Priority to BRPI0504776-5A priority Critical patent/BRPI0504776A/en
Priority to PCT/BR2006/000218 priority patent/WO2007048211A2/en
Publication of BRPI0504776A publication Critical patent/BRPI0504776A/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
    • 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
    • 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
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems

Abstract

ROTOR COM ìMãS PERMANENTES A presente patente de invenção refere-se a um rotor com ímãs permanentes particularmente para ser usado em motores do tipo síncrono,sendo o formato da parte externa (14) senoidal. A localização e o formato da secção transversal dos ímãs permanentes (13,19, 21a, 21b) são adaptados de tal forma que a densidade do fluxo magnético no entreferro (15) entre o estator (11) e o rotor (12) varia substancialmente de forma senoidal. Adicionalmente, dito rotor (12) compreende furos (22) na região interpolar, que em conjunto com as cavidades (17) dos imãs formam as pontes (26) para sustentação das sapatas (23), servindo de barreiras à dispersão do fluxo magnético de excitação dos ímãs permanentes (13,19, 21a, 21b).PERMANENT MAGNET ROTOR The present invention relates to a permanent magnet rotor particularly for use in synchronous type motors, the shape of the outer part (14) being sinusoidal. The location and cross-sectional shape of the permanent magnets (13,19, 21a, 21b) are adapted such that the magnetic flux density in the air gap (15) between the stator (11) and the rotor (12) varies substantially. sinusoidally. Additionally, said rotor (12) comprises holes (22) in the interpolar region, which together with the cavities (17) of the magnets form the bridges (26) for supporting the shoes (23), serving as barriers to the dispersion of the magnetic flux of excitation of permanent magnets (13,19, 21a, 21b).

BRPI0504776-5A 2005-10-25 2005-10-25 rotor with permanent magnets BRPI0504776A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BRPI0504776-5A BRPI0504776A (en) 2005-10-25 2005-10-25 rotor with permanent magnets
PCT/BR2006/000218 WO2007048211A2 (en) 2005-10-25 2006-10-19 Permanent magnet rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BRPI0504776-5A BRPI0504776A (en) 2005-10-25 2005-10-25 rotor with permanent magnets

Publications (1)

Publication Number Publication Date
BRPI0504776A true BRPI0504776A (en) 2007-09-18

Family

ID=37968165

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0504776-5A BRPI0504776A (en) 2005-10-25 2005-10-25 rotor with permanent magnets

Country Status (2)

Country Link
BR (1) BRPI0504776A (en)
WO (1) WO2007048211A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022120443A1 (en) * 2020-12-11 2022-06-16 Weg Equipamentos Elétricos S.a. Rotor for rotary electric machine, manufacturing method and corresponding rotary electric machines

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008007565A1 (en) * 2008-02-05 2009-08-06 BSH Bosch und Siemens Hausgeräte GmbH Permanent magnet excited electric machine for driving a component of a household appliance and domestic appliance with such a machine
EP2478615B1 (en) 2009-09-18 2019-09-04 BRUSA Elektronik AG Permanent magnet exited synchronous machine with embedded magnets
DE102009042765B4 (en) * 2009-09-25 2018-05-24 Krebs & Aulich Gmbh Permanent magnet synchronous machine
CN102013779B (en) * 2010-12-09 2012-11-07 南昌大学 Hybrid excitation permanent magnet motor of quintuple harmonic excitation
JP5920290B2 (en) * 2013-07-30 2016-05-18 株式会社安川電機 Motor and method for detecting mechanical angle of motor
DE102014108932A1 (en) 2014-06-25 2015-12-31 Hans Kuss Permanent magnet rotor
DE102014113109A1 (en) * 2014-09-11 2016-03-17 Pfeiffer Vacuum Gmbh vacuum pump
KR20180009189A (en) * 2016-07-18 2018-01-26 하이젠모터 주식회사 Rotor of permanent magnet motor
GB201619856D0 (en) * 2016-11-24 2017-01-11 Jaguar Land Rover Ltd Electric machine apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4618792A (en) * 1984-09-26 1986-10-21 Westinghouse Electric Corp. Dynamoelectric machine with a laminated pole permanent magnet rotor
JPH08331784A (en) * 1995-03-24 1996-12-13 Hitachi Metals Ltd Permanent-magnet type rotary electric machine
TW577658U (en) * 2001-09-10 2004-02-21 Adlee Powertronic Co Ltd Rotor structure for a motor having built-in type permanebt magnet
TWI224412B (en) * 2003-07-30 2004-11-21 Ming-Tsung Chu Rotor structure of line-start permanent magnet synchronous motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022120443A1 (en) * 2020-12-11 2022-06-16 Weg Equipamentos Elétricos S.a. Rotor for rotary electric machine, manufacturing method and corresponding rotary electric machines

Also Published As

Publication number Publication date
WO2007048211A3 (en) 2009-04-02
WO2007048211A2 (en) 2007-05-03

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFIRO O PEDIDO DE ACORDO COM ART. 8O COMBINADO COM ART. 11 E ART. 8O COMBINADO COM ART. 13 DA LPI

B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL.