GB1118604A - Improvements in or relating to field magnet structures for dynamo-electric machines - Google Patents
Improvements in or relating to field magnet structures for dynamo-electric machinesInfo
- Publication number
- GB1118604A GB1118604A GB4963165A GB4963165A GB1118604A GB 1118604 A GB1118604 A GB 1118604A GB 4963165 A GB4963165 A GB 4963165A GB 4963165 A GB4963165 A GB 4963165A GB 1118604 A GB1118604 A GB 1118604A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frame
- adhesive
- magnets
- injected
- machine
- 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
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/17—Stator cores with permanent 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
1,118,604. Core constructions. ROBERT BOSCH G.m.b.H. 23 Nov., 1965 [26 Nov., 1964], No. 49631/65. Heading H2A. In a dynamo electric machine field structure, the magnets 3, which are preferably formed from materials which are difficult to machine, such as sintered oxide materials, are secured to the machine frame 1 by an adhesive 4, such as epoxy resin, injected into the gap between the magnet and the machine frame through holes 5 in the frame 1. Slots are cut at each end of the frame to leave strips 7 (Fig. 2, not shown), which are inwardly deformed to prevent the adhesive from running out of the gaps. In a further arrangement (Fig. 3, not shown), a two-part frame 11, 12 is mounted together with the magnets 14 on a jig core 18 and adhesive is injected into the gaps 15 from two holes at the end of each frame half. The adhesive is then hardened by induction heating and means may be provided adjacent the polepieces for magnetizing them. Lugs (16) may be provided on the frame halves for mounting bearing covers and a brush carrier plate. In a still further arrangement (Fig. 5, not shown), four magnets (21) are glued to a cylindrical frame 20; the adhesive which is injected by nozzles (24) also flows to bores (23) in the frame, which when hard provide additional anchoring. The adhesive may contain powdered magnetizable material such as iron filings.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB0079499 | 1964-11-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1118604A true GB1118604A (en) | 1968-07-03 |
Family
ID=6980326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4963165A Expired GB1118604A (en) | 1964-11-26 | 1965-11-23 | Improvements in or relating to field magnet structures for dynamo-electric machines |
Country Status (3)
Country | Link |
---|---|
GB (1) | GB1118604A (en) |
NL (1) | NL6515319A (en) |
SE (1) | SE312167B (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0015165A1 (en) * | 1979-01-25 | 1980-09-03 | DUCELLIER & Cie | Inductor circuit for electrical rotating machine, especially for automobile starter motor |
US4464595A (en) * | 1981-12-22 | 1984-08-07 | Mitsubishi Denki Kabushiki Kaisha | Field system of magnet type D.C. motor having magnetic flux reducing pole pieces |
DE3521005A1 (en) * | 1985-06-12 | 1986-12-18 | Robert Bosch Gmbh, 7000 Stuttgart | Electrical machine, especially a small motor |
US4973871A (en) * | 1989-08-23 | 1990-11-27 | Lucas Aerospace Power Equipment Corporation | Stator assembly having magnet retention by mechanical wedge constraint |
US4980593A (en) * | 1989-03-02 | 1990-12-25 | The Balbec Corporation | Direct current dynamoelectric machines utilizing high-strength permanent magnets |
GB2246025A (en) * | 1990-05-21 | 1992-01-15 | Mitsuba Electric Mfg Co | Locating permanent magnets secured by adhesive to yoke |
EP1315273A2 (en) * | 2001-11-27 | 2003-05-28 | Asmo Co. Ltd. | Method and apparatus for manufacturing yoke of electric rotating machine |
WO2005013457A2 (en) * | 2003-07-28 | 2005-02-10 | Siemens Vdo Automotive Inc. | Low noise motor with one-piece frame and coil-spring flux ring |
-
1965
- 1965-11-23 GB GB4963165A patent/GB1118604A/en not_active Expired
- 1965-11-24 SE SE1521065A patent/SE312167B/xx unknown
- 1965-11-25 NL NL6515319A patent/NL6515319A/xx unknown
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0015165A1 (en) * | 1979-01-25 | 1980-09-03 | DUCELLIER & Cie | Inductor circuit for electrical rotating machine, especially for automobile starter motor |
US4464595A (en) * | 1981-12-22 | 1984-08-07 | Mitsubishi Denki Kabushiki Kaisha | Field system of magnet type D.C. motor having magnetic flux reducing pole pieces |
DE3521005A1 (en) * | 1985-06-12 | 1986-12-18 | Robert Bosch Gmbh, 7000 Stuttgart | Electrical machine, especially a small motor |
US4980593A (en) * | 1989-03-02 | 1990-12-25 | The Balbec Corporation | Direct current dynamoelectric machines utilizing high-strength permanent magnets |
US4973871A (en) * | 1989-08-23 | 1990-11-27 | Lucas Aerospace Power Equipment Corporation | Stator assembly having magnet retention by mechanical wedge constraint |
GB2246025A (en) * | 1990-05-21 | 1992-01-15 | Mitsuba Electric Mfg Co | Locating permanent magnets secured by adhesive to yoke |
GB2246025B (en) * | 1990-05-21 | 1994-08-03 | Mitsuba Electric Mfg Co | Structure for locating permanent magnets in dynamic electric machine |
EP1315273A2 (en) * | 2001-11-27 | 2003-05-28 | Asmo Co. Ltd. | Method and apparatus for manufacturing yoke of electric rotating machine |
EP1315273A3 (en) * | 2001-11-27 | 2003-11-26 | Asmo Co. Ltd. | Method and apparatus for manufacturing yoke of electric rotating machine |
US6880230B2 (en) | 2001-11-27 | 2005-04-19 | Asmo Co., Ltd. | Method for manufacturing yoke of electric rotating machine |
WO2005013457A2 (en) * | 2003-07-28 | 2005-02-10 | Siemens Vdo Automotive Inc. | Low noise motor with one-piece frame and coil-spring flux ring |
WO2005013457A3 (en) * | 2003-07-28 | 2005-09-22 | Siemens Vdo Automotive Inc | Low noise motor with one-piece frame and coil-spring flux ring |
Also Published As
Publication number | Publication date |
---|---|
NL6515319A (en) | 1966-05-27 |
SE312167B (en) | 1969-07-07 |
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