Rotor for an electric machine

Kim, Jihyun; Muir, Michael C.; Leong, Yew Sum

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A - human necessities
A01 - agriculture
A21 - baking
A22 - butchering
A23 - foods or foodstuffs
A24 - tobacco
A41 - wearing apparel
A42 - headwear
A43 - footwear
A44 - haberdashery
A45 - hand or travelling articles
A46 - brushware
A47 - furniture
A61 - medical or veterinary science
A62 - life-saving
A63 - sports
A99 - subject matter not otherwise provided for in this section
B - performing operations
B01 - physical or chemical processes or apparatus in general
B02 - crushing, pulverising, or disintegrating
B03 - separation of solid materials using liquids or using pneumatic tables or jigs
B04 - centrifugal apparatus or machines for carrying-out physical or chemical processes
B05 - spraying or atomising in general
B06 - generating or transmitting mechanical vibrations in general
B07 - separating solids from solids
B08 - cleaning
B09 - disposal of solid waste
B21 - mechanical metal-working without essentially removing material
B22 - casting
B23 - machine tools
B24 - grinding
B25 - hand tools
B26 - hand cutting tools
B27 - working or preserving wood or similar material
B28 - working cement, clay, or stone
B29 - working of plastics
B30 - presses
B31 - making articles of paper, cardboard or material worked in a manner analogous to paper
B32 - layered products
B33 - additive manufacturing technology
B41 - printing
B42 - bookbinding
B43 - writing or drawing implements
B44 - decorative arts
B60 - vehicles in general
B61 - railways
B62 - land vehicles for travelling otherwise than on rails
B63 - ships or other waterborne vessels
B64 - aircraft
B65 - conveying
B66 - hoisting
B67 - opening, closing {or cleaning} bottles, jars or similar containers
B68 - saddlery
B81 - microstructural technology
B82 - nanotechnology
B99 - subject matter not otherwise provided for in this section
C - chemistry
C01 - inorganic chemistry
C02 - treatment of water, waste water, sewage, or sludge
C03 - glass
C04 - cements
C05 - fertilisers
C06 - explosives
C07 - organic chemistry
C08 - organic macromolecular compounds
C09 - dyes
C10 - petroleum, gas or coke industries
C11 - animal or vegetable oils, fats, fatty substances or waxes
C12 - biochemistry
C13 - sugar industry
C14 - skins
C21 - metallurgy of iron
C22 - metallurgy
C23 - coating metallic material
C25 - electrolytic or electrophoretic processes
C30 - crystal growth
C40 - combinatorial technology
C99 - subject matter not otherwise provided for in this section
D - textiles
D01 - natural or man-made threads or fibres
D02 - yarns
D03 - weaving
D04 - braiding
D05 - sewing
D06 - treatment of textiles or the like
D07 - ropes
D10 - indexing scheme associated with sublasses of section d, relating to textiles
D21 - paper-making
D99 - subject matter not otherwise provided for in this section
E - fixed constructions
E01 - construction of roads, railways, or bridges
E02 - hydraulic engineering
E03 - water supply
E04 - building
E05 - locks
E06 - doors, windows, shutters, or roller blinds in general
E21 - earth drilling
E99 - subject matter not otherwise provided for in this section
F - mechanical engineering
F01 - machines or engines in general
F02 - combustion engines
F03 - machines or engines for liquids
F04 - positive - displacement machines for liquids
F05 - indexing schemes relating to engines or pumps in various subclasses of classes f01-f04
F15 - fluid-pressure actuators
F16 - engineering elements and units
F17 - storing or distributing gases or liquids
F21 - lighting
F22 - steam generation
F23 - combustion apparatus
F24 - heating
F25 - refrigeration or cooling
F26 - drying
F27 - furnaces
F28 - heat exchange in general
F41 - weapons
F42 - ammunition
F99 - subject matter not otherwise provided for in this section
G - physics
G01 - measuring
G02 - optics
G03 - photography
G04 - horology
G05 - controlling
G06 - computing
G07 - checking-devices
G08 - signalling
G09 - education
G10 - musical instruments
G11 - information storage
G12 - instrument details
G16 - information and communication technology [ict] specially adapted for specific application fields
G21 - nuclear physics
G99 - subject matter not otherwise provided for in this section
H - electricity
H01 - basic electric elements
H02 - generation
H03 - basic electronic circuitry
H04 - electric communication technique
H05 - electric techniques not otherwise provided for
H99 - subject matter not otherwise provided for in this section
Y - new / cross sectional technologies
Y02 - technologies or applications for mitigation or adaptation against climate change
Y04 - information or communication technologies having an impact on other technology areas
Y10 - technical subjects covered by former uspc

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Title: Rotor for an electric machine

Abstract

A rotor for an electric machine comprises a rotor core that defines a rotor slot having a central portion and an end portion. The end portion has a maximum width that is greater than a maximum width of the central portion immediately adjacent the end portion. A perimeter of the rotor slot at the end portion includes a plurality of segments extending between a first extremity at the maximum width of the end portion and a second extremity at the maximum width of the end portion. The plurality of segments include segments with different radii that decrease in magnitude from the center axis to the first extremity, and from the center axis to the second extremity.

Inventors:: Kim, Jihyun; Muir, Michael C.; Leong, Yew Sum

Issue Date:: 2021-01-05

Research Org.:: GM Global Technology Operations LLC, Detroit, MI (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1805364

Patent Number(s):: 10886802

Application Number:: 15/895,400

Assignee:: GM Global Technology Operations LLC (Detroit, MI)

Patent Classifications (CPCs):: H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES

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H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES
H02K1/2766 - {having a flux concentration effect}
H02K3/345 - {between conductor and core, e.g. slot insulation}
H02K7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans

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DOE Contract Number:: EE0007757

Resource Type:: Patent

Resource Relation:: Patent File Date: 02/13/2018

Country of Publication:: United States

Language:: English

Citation Formats


                    Kim, Jihyun, Muir, Michael C., and Leong, Yew Sum. Rotor for an electric machine.  United States: N. p., 2021. 
        Web.

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                    Kim, Jihyun, Muir, Michael C., & Leong, Yew Sum. Rotor for an electric machine.  United States.

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                    Kim, Jihyun, Muir, Michael C., and Leong, Yew Sum. Tue .  
        "Rotor for an electric machine".  United States.  https://www.osti.gov/servlets/purl/1805364.

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@article{osti_1805364,

  title        = {Rotor for an electric machine},

  author       = {Kim, Jihyun and Muir, Michael C. and Leong, Yew Sum},

  abstractNote = {A rotor for an electric machine comprises a rotor core that defines a rotor slot having a central portion and an end portion. The end portion has a maximum width that is greater than a maximum width of the central portion immediately adjacent the end portion. A perimeter of the rotor slot at the end portion includes a plurality of segments extending between a first extremity at the maximum width of the end portion and a second extremity at the maximum width of the end portion. The plurality of segments include segments with different radii that decrease in magnitude from the center axis to the first extremity, and from the center axis to the second extremity.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2021},

  month        = {1}

}

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Works referenced in this record:

Synchronous reluctance motor
patent, December 2010

Lee, Kyung-Hoon; Ahn, Jun H.
US Patent Document 7,851,960
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7851960

Rotor for rotary electric machine
patent, November 2014

Sano, Shinya; Kurokawa, Akifumi
US Patent Document 8,890,385
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8890385

Internal permanent magnet rotor having improved configuration of magnetic flux barriers
patent, April 2008

Utaka, Ryosuke
US Patent Document 7,362,025
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7362025

Rotor for Rotating Electric Machine
patent-application, March 2014

Takahashi, Yuki
US Patent Application 14/025979; 20140077653
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20140077653

Rotor for Rotary Electric Machine
patent-application, August 2014

Soma, Shingo; Shirado, Eiji; Iki, Tomotaka
US Patent Application 14/174749; 20140217849
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20140217849

Permanent-magnet (PM) rotors and systems
patent, July 2014

Feng, Xueqing; Liu, Lijun
US Patent Document 8,772,994
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8772994

Rotor Hub and Assembly for a Permanent Magnet Power Electric Machine
patent-application, November 2007

Ong, Raymond; Reckker, Martin J.
US Patent Application 11/838520; 20070273232
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20070273232

Rotating electric machine and automobile
patent, September 2014

Saito, Yasuyuki; Hino, Noriaki; Kaimori, Tomoaki
US Patent Document 8,847,454
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8847454

IPM Rotor Magnet Slot Geometry for Improved Heat Transfer
patent-application, April 2014

Chamberlin, Bradley D.
US Patent Application 13/659568; 20140111050
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20140111050

Rotor Laminations Having Reduced Stress Magnet Stop
patent-application, June 2017

Kaiser, Edward L.; Wyrenbelski, David A.
US Patent Application 14/974730; 20170179779
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20170179779

Motor
patent, September 2010

Arimitsu, Minoru; Akatsu, Kan
US Patent Document 7,795,772
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7795772

Magnetic Member, Rotor and Motor
patent-application, June 2009

Nishijima, Kiyotaka
US Patent Application 11/885161; 20090152972
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20090152972

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Similar Records

Title: Rotor for an electric machine

Abstract

Citation Formats

Synchronous reluctance motor patent, December 2010

Rotor for rotary electric machine patent, November 2014

Internal permanent magnet rotor having improved configuration of magnetic flux barriers patent, April 2008

Rotor for Rotating Electric Machine patent-application, March 2014

Rotor for Rotary Electric Machine patent-application, August 2014

Permanent-magnet (PM) rotors and systems patent, July 2014

Rotor Hub and Assembly for a Permanent Magnet Power Electric Machine patent-application, November 2007

Rotating electric machine and automobile patent, September 2014

IPM Rotor Magnet Slot Geometry for Improved Heat Transfer patent-application, April 2014

Rotor Laminations Having Reduced Stress Magnet Stop patent-application, June 2017

Motor patent, September 2010

Magnetic Member, Rotor and Motor patent-application, June 2009

Synchronous reluctance motor
patent, December 2010

Rotor for rotary electric machine
patent, November 2014

Internal permanent magnet rotor having improved configuration of magnetic flux barriers
patent, April 2008

Rotor for Rotating Electric Machine
patent-application, March 2014

Rotor for Rotary Electric Machine
patent-application, August 2014

Permanent-magnet (PM) rotors and systems
patent, July 2014

Rotor Hub and Assembly for a Permanent Magnet Power Electric Machine
patent-application, November 2007

Rotating electric machine and automobile
patent, September 2014

IPM Rotor Magnet Slot Geometry for Improved Heat Transfer
patent-application, April 2014

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patent-application, June 2017

Motor
patent, September 2010

Magnetic Member, Rotor and Motor
patent-application, June 2009