IN2014KO00770A - - Google Patents
Info
- Publication number
- IN2014KO00770A IN2014KO00770A IN770KO2014A IN2014KO00770A IN 2014KO00770 A IN2014KO00770 A IN 2014KO00770A IN 770KO2014 A IN770KO2014 A IN 770KO2014A IN 2014KO00770 A IN2014KO00770 A IN 2014KO00770A
- Authority
- IN
- India
- Prior art keywords
- lamination
- tab
- lamination sheets
- slot
- recess
- Prior art date
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
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
A rotor assembly for an electric machine includes a plurality of lamination sheets. Each of the lamination sheets defines an aperture. The lamination sheets are disposed adjacent each other to define a laminated stack. The apertures are aligned with each other to define a slot extending parallel with a central axis of the laminated stack. A magnet is disposed within the slot. The lamination sheets include a group of recess lamination sheets and a tab lamination sheet. The tab lamination sheet includes a tab that extends into the slot, and into abutting engagement with the magnet to bias the magnet against a wall of the slot. The apertures of the group of recess lamination sheets include a groove portion that defines a groove. The tab of the tab lamination sheet is at least partially disposed within the groove defined by the recess lamination sheets.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/061,173 US9621001B2 (en) | 2013-10-23 | 2013-10-23 | Rotor assembly for electric machine having mechanical retention system for magnets |
Publications (1)
Publication Number | Publication Date |
---|---|
IN2014KO00770A true IN2014KO00770A (en) | 2015-04-24 |
Family
ID=52775359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IN770KO2014 IN2014KO00770A (en) | 2013-10-23 | 2014-07-18 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9621001B2 (en) |
CN (1) | CN104578495B (en) |
DE (1) | DE102014115230A1 (en) |
IN (1) | IN2014KO00770A (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6761762B2 (en) * | 2017-01-27 | 2020-09-30 | 株式会社三井ハイテック | Rotor laminated iron core and its manufacturing method |
WO2018189822A1 (en) * | 2017-04-12 | 2018-10-18 | 三菱電機株式会社 | Ipm rotor |
CN110266156B (en) * | 2019-07-01 | 2020-07-21 | 东风博泽汽车系统有限公司 | Automatic pre-bending device and method for motor rotor iron core |
US11264850B2 (en) * | 2019-09-05 | 2022-03-01 | Nidec Motor Corporation | Laminated rotor having deflecting magnet retaining prongs and support posts for the prongs |
US11133724B2 (en) * | 2019-09-24 | 2021-09-28 | GM Global Technology Operations LLC | Rotor with compressive structural elements |
US11646616B2 (en) | 2020-02-04 | 2023-05-09 | Nidec Motor Corporation | Laminated spoked rotor with mechanical magnet retention |
JP7543676B2 (en) * | 2020-03-30 | 2024-09-03 | ニデック株式会社 | Rotor for IPM motor |
CN113572285A (en) * | 2020-04-29 | 2021-10-29 | 广东德昌电机有限公司 | Permanent magnet excitation assembly and assembling method thereof |
TWI791292B (en) * | 2021-09-24 | 2023-02-01 | 日商日本電產股份有限公司 | Rotors for Internal Permanent Magnet Motors |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3659129A (en) * | 1970-09-15 | 1972-04-25 | Gen Electric | Insulated bar dynamoelectric machine and method of forming |
US4168792A (en) * | 1978-05-26 | 1979-09-25 | Morin Edward A | Needle for tatting |
JPS6077647A (en) * | 1983-10-03 | 1985-05-02 | Mitsui Haitetsuku:Kk | Manufacture of laminated core |
JP2003235189A (en) * | 2002-02-04 | 2003-08-22 | Toyota Motor Corp | Magnet retaining structure for rotor of rotating electric machine |
BRPI0402303A (en) * | 2004-06-07 | 2006-01-17 | Brasil Compressores Sa | Process of mounting magnets on electric motor rotor and electric motor rotor |
US7919898B2 (en) * | 2007-06-21 | 2011-04-05 | Nidec Motor Corporation | Rotor core assembly for electric motor |
JP2009077588A (en) * | 2007-09-21 | 2009-04-09 | Denso Corp | Ac generator for vehicle |
JP5327692B2 (en) * | 2008-03-12 | 2013-10-30 | 日本電産株式会社 | Motor and method for manufacturing rotor part of motor |
US8089189B2 (en) * | 2009-06-23 | 2012-01-03 | Hamilton Sundstrand Corporation | Rotor for permanent magnet electric machine |
CN102577032A (en) * | 2009-10-22 | 2012-07-11 | Tm4股份有限公司 | Permanent magnet rotor assembly provided with welded magnet retaining elements |
EP2735086B1 (en) * | 2011-07-22 | 2019-11-13 | ebm-papst St. Georgen GmbH & Co. KG | Internal rotor motor |
EP2557661B1 (en) * | 2011-08-10 | 2020-03-11 | LG Innotek Co., Ltd. | Rotor core of motor |
US9099897B2 (en) * | 2011-09-13 | 2015-08-04 | L.H. Carbide Corporation | Method for connecting end sections of an annular laminated article and articles made therefrom |
DE102011122023A1 (en) * | 2011-12-23 | 2013-06-27 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Robot sheet package of an electric motor |
-
2013
- 2013-10-23 US US14/061,173 patent/US9621001B2/en active Active
-
2014
- 2014-07-18 IN IN770KO2014 patent/IN2014KO00770A/en unknown
- 2014-10-20 DE DE201410115230 patent/DE102014115230A1/en active Pending
- 2014-10-23 CN CN201410573491.9A patent/CN104578495B/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE102014115230A1 (en) | 2015-04-23 |
US9621001B2 (en) | 2017-04-11 |
US20150108866A1 (en) | 2015-04-23 |
CN104578495A (en) | 2015-04-29 |
CN104578495B (en) | 2017-12-15 |
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