NZ591686A - Ac permanent magnet synchronous electrical machine - Google Patents

Ac permanent magnet synchronous electrical machine

Info

Publication number
NZ591686A
NZ591686A NZ591686A NZ59168609A NZ591686A NZ 591686 A NZ591686 A NZ 591686A NZ 591686 A NZ591686 A NZ 591686A NZ 59168609 A NZ59168609 A NZ 59168609A NZ 591686 A NZ591686 A NZ 591686A
Authority
NZ
New Zealand
Prior art keywords
electrical machine
permanent magnet
air gap
magnet synchronous
rotor
Prior art date
Application number
NZ591686A
Inventor
Yuejin Zhang
Liyan Lu
Xiaohua Xu
Wei Cui
Jianzhong Jiang
Original Assignee
Xiaohua Xu
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 Xiaohua Xu filed Critical Xiaohua Xu
Publication of NZ591686A publication Critical patent/NZ591686A/en

Links

Classifications

    • 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
    • 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
    • H02K21/16—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
    • 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
    • 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
    • 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]

Abstract

591686 Disclosed is an AC permanent magnet synchronous electrical machine that includes a stator (1) and a rotor (2). An air gap (7) is provided between the outer circumference of the rotor (2) and the inner wall of the stator (1). The minimum air gap length of the air gap (7) is gmin when the angular position of the rotor is 0 degrees. The number of the pole pairs of the electrical machine is p. The length of the air gap of a position with an electrical degree of p? is g(p?). The value of g(p?) at a values of ? between 73 degrees and 107 degrees is constant, outside of this range g(p?) is inversely proportional to cos(p?).
NZ591686A 2008-12-29 2009-03-13 Ac permanent magnet synchronous electrical machine NZ591686A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200810163507A CN101771316A (en) 2008-12-29 2008-12-29 AC permanent magnet synchronous motor
PCT/CN2009/070780 WO2010078734A1 (en) 2008-12-29 2009-03-13 Ac permanent magnet synchronous electrical machine

Publications (1)

Publication Number Publication Date
NZ591686A true NZ591686A (en) 2013-11-29

Family

ID=42316214

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ591686A NZ591686A (en) 2008-12-29 2009-03-13 Ac permanent magnet synchronous electrical machine

Country Status (7)

Country Link
KR (1) KR101241391B1 (en)
CN (1) CN101771316A (en)
AU (1) AU2009336998B2 (en)
CA (1) CA2737357C (en)
MY (1) MY152409A (en)
NZ (1) NZ591686A (en)
WO (1) WO2010078734A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI556549B (en) * 2015-10-05 2016-11-01 建準電機工業股份有限公司 Internal rotor motor, rotor thereof and method for determining dimensional proportion of the rotor
FR3104848B1 (en) * 2019-12-17 2021-11-26 Ifp Energies Now Synchro-reluctant machine with variable air gap
CN111725923B (en) * 2020-07-27 2021-07-02 威灵（芜湖）电机制造有限公司 Motor and household appliance

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2203806Y (en) * 1994-12-08 1995-07-19 永济电机厂 Direct-current electric machine
DE60141308D1 (en) * 2000-03-31 2010-04-01 Sanyo Electric Co Synchronous motor with internal permanent magnet
JP3983004B2 (en) * 2000-03-31 2007-09-26 山洋電気株式会社 Synchronous motor with built-in permanent magnet
JP2008029078A (en) * 2006-07-19 2008-02-07 Fanuc Ltd Permanent magnet type synchronous motor

Also Published As

Publication number Publication date
WO2010078734A1 (en) 2010-07-15
AU2009336998B2 (en) 2013-05-23
CA2737357A1 (en) 2010-07-15
CA2737357C (en) 2013-10-08
AU2009336998A1 (en) 2010-07-15
MY152409A (en) 2014-09-30
KR20110053371A (en) 2011-05-20
CN101771316A (en) 2010-07-07
KR101241391B1 (en) 2013-03-11

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Free format text: THE AGENT HAS BEEN CORRECTED TO 1447587, ADMIRAL TRADEMARKS AND PATENTS SERVICES, LEVEL 20, 135 ALBERT STREET, AUCKLAND CENTRAL, AUCKLAND 1010, NZ; THE CONTACT HAS BEEN CORRECTED TO 1447587, ADMIRAL TRADEMARKS AND PATENTS SERVICES, LEVEL 20, 135 ALBERT STREET, AUCKLAND CENTRAL, AUCKLAND 1010, NZ

Effective date: 20130916

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Free format text: THE TITLE HAS BEEN CORRECTED TO TITLE: AC PERMANENT MAGNET SYNCHRONOUS ELECTRICAL MACHINE; FILING DATE: 11 MAR 2011; STATUS: REJECTED; TITLE: AC PERMANENT MAGNET SYNCHRONOUS ELECTRICAL MACHINE; FILING DATE: 17 SEP 2012; STATUS: PROPOSED; TITLE: AC PERMANENT MAGNET SYNCHRONOUS ELECTRICAL MACHINE; FILING DATE: 14 SEP 2012; STATUS: REJECTED;

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