GB965443A - Improvements in squirrel-cage rotors - Google Patents
Improvements in squirrel-cage rotorsInfo
- Publication number
- GB965443A GB965443A GB44216/60A GB4421660A GB965443A GB 965443 A GB965443 A GB 965443A GB 44216/60 A GB44216/60 A GB 44216/60A GB 4421660 A GB4421660 A GB 4421660A GB 965443 A GB965443 A GB 965443A
- Authority
- GB
- United Kingdom
- Prior art keywords
- laminations
- core
- vents
- mould
- aluminium
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 238000003475 lamination Methods 0.000 abstract 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 3
- 229910052782 aluminium Inorganic materials 0.000 abstract 3
- 239000004411 aluminium Substances 0.000 abstract 3
- 239000004020 conductor Substances 0.000 abstract 3
- 238000005266 casting Methods 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 230000004907 flux Effects 0.000 abstract 1
- 238000005338 heat storage Methods 0.000 abstract 1
- 238000007711 solidification Methods 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 abstract 1
- 238000013022 venting Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
- H02K17/165—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors characterised by the squirrel-cage or other short-circuited windings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0054—Casting in, on, or around objects which form part of the product rotors, stators for electrical motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
- H02K17/168—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors having single-cage rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
- H02K17/18—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors having double-cage or multiple-cage rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
- H02K17/20—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors having deep-bar rotors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49009—Dynamoelectric machine
- Y10T29/49012—Rotor
Abstract
965,443. Casting composite articles. GENERAL ELECTRIC CO. Dec. 23, 1960 [Jan. 6, 1960], No. 44216/60. Heading B3F. [Also in Division H2] Windings are cast in a rotor core for a dynamo electric machine by pouring molten aluminium into a central bore provided in the core so that it flows outwardly into the conductor slots and mould cavities for the end rings &c., venting air from the conductor slots and removing the mould and excess aluminium from the core when solidification is complete. The aluminium may be forced outwardly by centrifugally rotating the mould and core assembly. The laminations 20, 30, 40, Figs. 1a, 1b, 1c and 2, are so perforated that on assembly they provide not only conductor slots 28 but neck portions 26 which serve as heat storage areas for heat generated during operation of the machine. The slats 36 in the laminations 30 provide vents for air displaced during pouring, the air passing into the bore of the core and escaping past the funnel 70. A vent 68 vents the upper end ring cavity. Alternatively the slots 36 may be dispensed with by making the inner bore cf the laminations 30 on the radius R2, and providing vents by welding spacers 78 to the laminations 40. Alternative flux paths may be provided by the use of other appropriate apertured laminations.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US857A US3213306A (en) | 1960-01-06 | 1960-01-06 | Method of casting rotors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB965443A true GB965443A (en) | 1964-07-29 |
Family
ID=21693308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB44216/60A Expired GB965443A (en) | 1960-01-06 | 1960-12-23 | Improvements in squirrel-cage rotors |
Country Status (3)
| Country | Link |
|---|---|
| US (2) | US3213306A (en) |
| JP (1) | JPS467850B1 (en) |
| GB (1) | GB965443A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06253511A (en) * | 1993-02-24 | 1994-09-09 | Fanuc Ltd | Squirrel-cage rotor for high speed induction motor |
| DK0748027T3 (en) * | 1995-06-07 | 2007-01-08 | Gen Electric | Dynamoelectric machine and its rotor structures |
| US5990595A (en) * | 1996-10-04 | 1999-11-23 | General Electric Company | Rotors and methods of manufacturing such rotors |
| AR027685A1 (en) * | 2000-03-22 | 2003-04-09 | Synthes Ag | METHOD AND METHOD FOR CARRYING OUT |
| US8511367B2 (en) * | 2010-06-01 | 2013-08-20 | GM Global Technology Operations LLC | Method and apparatus for fabricating a rotor for an induction motor |
| CN116711193A (en) * | 2020-12-11 | 2023-09-05 | Weg电力设备公司 | Rotor of rotary electric machine, manufacturing method and corresponding rotary electric machine |
| DE102021112931A1 (en) * | 2021-05-19 | 2022-11-24 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Stator of an electrical machine, method for manufacturing the same and electrical machine |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1190009A (en) * | 1915-03-31 | 1916-07-04 | Gen Electric | Induction-motor. |
| FR534071A (en) * | 1921-04-09 | 1922-03-17 | Valley Mould & Iron Corp | Steel ingot and method and mold for casting |
| US1861059A (en) * | 1930-04-08 | 1932-05-31 | Carl E Johnson | Rotor for silent motors |
| US2139748A (en) * | 1936-11-18 | 1938-12-13 | Reliance Electric & Eng Co | Squirrel cage rotor and process for making the same |
| US2370458A (en) * | 1942-09-14 | 1945-02-27 | Allis Louis Co | Cast squirrel cage rotor |
| US2368295A (en) * | 1942-09-14 | 1945-01-30 | Allis Louis Co | Method of making cast squirrel cage rotors |
| US2483024A (en) * | 1945-03-03 | 1949-09-27 | Casner Patents Inc | Method of manufacturing dynamo-electric machines |
| US2528154A (en) * | 1947-03-13 | 1950-10-31 | Westinghouse Electric Corp | Shrunk rotor for squirrel-cage motors |
| US2504825A (en) * | 1948-04-21 | 1950-04-18 | Allis Chalmers Mfg Co | Laminated spacer for ventilated die cast rotors |
| US2607969A (en) * | 1948-11-19 | 1952-08-26 | Us Electrical Motors Inc | Spacer for casting squirrel cage rotors |
| US2763916A (en) * | 1953-08-19 | 1956-09-25 | Emerson Electric Mfg Co | Method of making cast rotors |
| US2781466A (en) * | 1954-05-04 | 1957-02-12 | Dormeyer Corp | Induction motor rotor assembly |
| US2794138A (en) * | 1954-05-27 | 1957-05-28 | Gen Electric | Closed slot rotor punching |
| US2996773A (en) * | 1957-09-03 | 1961-08-22 | Gen Electric | Method of casting squirrel cage rotors |
-
1960
- 1960-01-06 US US857A patent/US3213306A/en not_active Expired - Lifetime
- 1960-12-23 GB GB44216/60A patent/GB965443A/en not_active Expired
-
1961
- 1961-01-06 JP JP2021961A patent/JPS467850B1/ja active Pending
-
1965
- 1965-01-28 US US436979A patent/US3264695A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3264695A (en) | 1966-08-09 |
| JPS467850B1 (en) | 1971-02-27 |
| US3213306A (en) | 1965-10-19 |
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