GB677956A - Improvements in and relating to synchronous induction motors - Google Patents
Improvements in and relating to synchronous induction motorsInfo
- Publication number
- GB677956A GB677956A GB25766/50A GB2576650A GB677956A GB 677956 A GB677956 A GB 677956A GB 25766/50 A GB25766/50 A GB 25766/50A GB 2576650 A GB2576650 A GB 2576650A GB 677956 A GB677956 A GB 677956A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plates
- squirrel cage
- magnet
- rotor
- loops
- 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
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
- H02K21/46—Motors having additional short-circuited winding for starting as an asynchronous motor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
677,956. A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 23, 1950 [Oct. 29, 1949], No. 25766/50. Class 35. A permanent magnet rotor for a motor has a radially polarized magnet surrounded by a laminated sleeve carrying a squirrel cage, the squirrel cage bars in the inter-polar regions being converted into short-circuited loops by plates at the ends of the rotor. As shown in Fig. 4, 21 are high resistance end-rings for squirrel cage conductors 20 in a laminated ring embracing a four-pole magnet. The conductors 20 in the region between the poles of the magnet are formed into separate short-circuited loops by the conducting plates 23 formed at each end of the rotor. In Fig. 6, segmental plates 25 in the inter-polar regions of a two-pole magnet engage conducting rings 26 which complete the loops for the squirrel cage bars which are directly connected electrically to the plates 25. All the conducting parts referred to may be formed by casting. Specifications 536,661 and 677,942 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US677956XA | 1949-10-29 | 1949-10-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB677956A true GB677956A (en) | 1952-08-27 |
Family
ID=22078462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25766/50A Expired GB677956A (en) | 1949-10-29 | 1950-10-23 | Improvements in and relating to synchronous induction motors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB677956A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005086317A1 (en) * | 2004-03-09 | 2005-09-15 | Rotatek Finland Oy | Rotor for permanent-magnet machine |
| EP3149835B1 (en) * | 2014-05-29 | 2019-07-24 | ABB Schweiz AG | Layered permanent magnet with conductive cage rotor construction |
| US10468952B2 (en) | 2012-12-14 | 2019-11-05 | Abb Schweiz Ag | Permanent magnet machine with hybrid cage and methods for operating same |
| CN113922535A (en) * | 2021-10-11 | 2022-01-11 | 安徽明腾永磁机电设备有限公司 | Small-size self-starting cast aluminum rotor PMSM towards piece |
-
1950
- 1950-10-23 GB GB25766/50A patent/GB677956A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005086317A1 (en) * | 2004-03-09 | 2005-09-15 | Rotatek Finland Oy | Rotor for permanent-magnet machine |
| US10468952B2 (en) | 2012-12-14 | 2019-11-05 | Abb Schweiz Ag | Permanent magnet machine with hybrid cage and methods for operating same |
| EP3149835B1 (en) * | 2014-05-29 | 2019-07-24 | ABB Schweiz AG | Layered permanent magnet with conductive cage rotor construction |
| CN113922535A (en) * | 2021-10-11 | 2022-01-11 | 安徽明腾永磁机电设备有限公司 | Small-size self-starting cast aluminum rotor PMSM towards piece |
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