JPS5571162A - Rotary electric machine - Google Patents
Rotary electric machineInfo
- Publication number
- JPS5571162A JPS5571162A JP14482478A JP14482478A JPS5571162A JP S5571162 A JPS5571162 A JP S5571162A JP 14482478 A JP14482478 A JP 14482478A JP 14482478 A JP14482478 A JP 14482478A JP S5571162 A JPS5571162 A JP S5571162A
- Authority
- JP
- Japan
- Prior art keywords
- pole
- poles
- auxiliary
- salient poles
- recesses
- 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.)
- Granted
Links
Landscapes
- Brushless Motors (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
PURPOSE:To provide a rotary electric machine of little cogging, high efficiency and simple construction, by using a field section having an N-pole, an S-pole and a non- magnetic pole and by using an armature core having a plurality of winding salient poles, auxiliary salient poles and prescribed auxiliary recesses. CONSTITUTION:A field section 2 comprising an N-pole, and S-pole and a non- magnetic pole is provided on the inside of a rotor 1 so that the poles are located at equiangular positions. Two winding salient poles 4a, 4b and two auxiliary salient poles 5a, 5b are provided on an armature core 3 so that the poles extend radially. Auxiliary recesses 8a-8h are provided on the parts of the poles 4a, 4b, 5a, 5b facing the field section 2. The auxiliary recesses 8a-8h and winding recesses 7a-7d between the salient poles are located at equiangular positions as to the center A of gyration. As a result, the order of fundamental component of magnetic nonuniform periodic wave in the armature core 3 rises, namely, the order of fundametal frequency component of cogging force increases. Therefore, the cogging force is reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14482478A JPS6046634B2 (en) | 1978-11-22 | 1978-11-22 | rotating electric machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14482478A JPS6046634B2 (en) | 1978-11-22 | 1978-11-22 | rotating electric machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5571162A true JPS5571162A (en) | 1980-05-29 |
JPS6046634B2 JPS6046634B2 (en) | 1985-10-17 |
Family
ID=15371299
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14482478A Expired JPS6046634B2 (en) | 1978-11-22 | 1978-11-22 | rotating electric machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6046634B2 (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59185982U (en) * | 1983-05-26 | 1984-12-10 | ミツミ電機株式会社 | small motor |
US4672253A (en) * | 1984-07-25 | 1987-06-09 | Hitachi, Ltd. | Permanent magnet electrical machine with reduced cogging |
US4782272A (en) * | 1985-06-28 | 1988-11-01 | Kollmorgen Technologies Corporation | Electrical drive systems |
US5173651A (en) * | 1985-06-28 | 1992-12-22 | Kollmorgen Technologies Corporation | Electrical drive systems |
US5250867A (en) * | 1991-11-20 | 1993-10-05 | General Electric Company | Permanent magnet brushless DC motor having reduced cogging |
US6462452B2 (en) | 2000-05-25 | 2002-10-08 | Mitsubishi Denki Kabushiki Kaisha | Permanent magnet motor |
US6853105B2 (en) | 2000-05-25 | 2005-02-08 | Mitsubishi Denki Kabushiki Kaisha | Permanent magnet motor |
JP2009189102A (en) * | 2008-02-04 | 2009-08-20 | Honda Motor Co Ltd | Brushless direct-current motor |
US8004141B2 (en) * | 2005-04-29 | 2011-08-23 | Sntech Inc. | Two-phase brushless DC motor |
US8033007B2 (en) | 2007-05-11 | 2011-10-11 | Sntech, Inc. | Method of making rotor of brushless motor |
US8299661B2 (en) | 2007-05-11 | 2012-10-30 | Sntech Inc. | Rotor of brushless motor |
JP2013219918A (en) * | 2012-04-09 | 2013-10-24 | Nippon Soken Inc | Motor |
JP2013219954A (en) * | 2012-04-10 | 2013-10-24 | Nippon Soken Inc | Motor |
JP2014117055A (en) * | 2012-12-10 | 2014-06-26 | Nippon Soken Inc | Motor |
-
1978
- 1978-11-22 JP JP14482478A patent/JPS6046634B2/en not_active Expired
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59185982U (en) * | 1983-05-26 | 1984-12-10 | ミツミ電機株式会社 | small motor |
US4672253A (en) * | 1984-07-25 | 1987-06-09 | Hitachi, Ltd. | Permanent magnet electrical machine with reduced cogging |
US4782272A (en) * | 1985-06-28 | 1988-11-01 | Kollmorgen Technologies Corporation | Electrical drive systems |
US5173651A (en) * | 1985-06-28 | 1992-12-22 | Kollmorgen Technologies Corporation | Electrical drive systems |
US5250867A (en) * | 1991-11-20 | 1993-10-05 | General Electric Company | Permanent magnet brushless DC motor having reduced cogging |
US6462452B2 (en) | 2000-05-25 | 2002-10-08 | Mitsubishi Denki Kabushiki Kaisha | Permanent magnet motor |
US6853105B2 (en) | 2000-05-25 | 2005-02-08 | Mitsubishi Denki Kabushiki Kaisha | Permanent magnet motor |
US6876116B2 (en) | 2000-05-25 | 2005-04-05 | Mitsubishi Denki Kabushiki Kaisha | Permanent magnet motor |
US8183733B2 (en) | 2005-04-29 | 2012-05-22 | Sntech, Inc. | Two-phase brushless DC motor |
US8004141B2 (en) * | 2005-04-29 | 2011-08-23 | Sntech Inc. | Two-phase brushless DC motor |
US8299661B2 (en) | 2007-05-11 | 2012-10-30 | Sntech Inc. | Rotor of brushless motor |
US8033007B2 (en) | 2007-05-11 | 2011-10-11 | Sntech, Inc. | Method of making rotor of brushless motor |
JP2009189102A (en) * | 2008-02-04 | 2009-08-20 | Honda Motor Co Ltd | Brushless direct-current motor |
JP2013219918A (en) * | 2012-04-09 | 2013-10-24 | Nippon Soken Inc | Motor |
JP2013219954A (en) * | 2012-04-10 | 2013-10-24 | Nippon Soken Inc | Motor |
JP2014117055A (en) * | 2012-12-10 | 2014-06-26 | Nippon Soken Inc | Motor |
Also Published As
Publication number | Publication date |
---|---|
JPS6046634B2 (en) | 1985-10-17 |
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