JPS6447260A - Linear dc brushless motor - Google Patents
Linear dc brushless motorInfo
- Publication number
- JPS6447260A JPS6447260A JP20261987A JP20261987A JPS6447260A JP S6447260 A JPS6447260 A JP S6447260A JP 20261987 A JP20261987 A JP 20261987A JP 20261987 A JP20261987 A JP 20261987A JP S6447260 A JPS6447260 A JP S6447260A
- Authority
- JP
- Japan
- Prior art keywords
- teeth
- propulsion
- detent
- amplitude
- core
- 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.)
- Pending
Links
Abstract
PURPOSE:To reduce the ripple propulsion by notching the teeth at both ends of an armature core 1 or the second teeth from the ends partially. CONSTITUTION:The teeth 1B at both ends of an armature core 1 are formed to have a 1/2 length of the width l of the core 1. The core 1 is formed of a single shaped silicon steel plate by laminating only l/2 by using the silicon steel plate with a shape that a single-sided end is only notched and laminating after that by placing a notch section on an opposite side. Accordingly, the detent propulsion (ripple propulsion) in case of using the teeth 1B is reduced to the same phase and to 1/2 amplitude in comparison with the time in case the notched teeth are not adopted, and the detent propulsion generated by each of the second teeth 1C from the ends is a waveform having a 1/2 amplitude with a slipped phase. Accordingly, the detent propulsion caused by the armature core 1 is reduced to 1/2 amplitude.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20261987A JPS6447260A (en) | 1987-08-15 | 1987-08-15 | Linear dc brushless motor |
US07/231,556 US4912746A (en) | 1987-08-15 | 1988-08-12 | Linear DC brushless motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20261987A JPS6447260A (en) | 1987-08-15 | 1987-08-15 | Linear dc brushless motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6447260A true JPS6447260A (en) | 1989-02-21 |
Family
ID=16460376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20261987A Pending JPS6447260A (en) | 1987-08-15 | 1987-08-15 | Linear dc brushless motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6447260A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2685566A1 (en) * | 1991-12-23 | 1993-06-25 | Koehler Gerard | Dynamo-electric machine consisting of sectors juxtaposed along the direction of movement, and method of manufacturing the said sectors |
JP2007282350A (en) * | 2006-04-05 | 2007-10-25 | Sanyo Denki Co Ltd | Linear motor |
JP2009542167A (en) * | 2006-02-03 | 2009-11-26 | シーメンス アクチエンゲゼルシヤフト | Electric machine with uneven pole teeth |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5568870A (en) * | 1978-11-15 | 1980-05-23 | Matsushita Electric Ind Co Ltd | Rectilinear-moving electric machine |
JPS5632977B2 (en) * | 1972-06-19 | 1981-07-31 | ||
JPS61124258A (en) * | 1984-11-19 | 1986-06-12 | Hitachi Kiden Kogyo Ltd | Linear induction motor |
-
1987
- 1987-08-15 JP JP20261987A patent/JPS6447260A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5632977B2 (en) * | 1972-06-19 | 1981-07-31 | ||
JPS5568870A (en) * | 1978-11-15 | 1980-05-23 | Matsushita Electric Ind Co Ltd | Rectilinear-moving electric machine |
JPS61124258A (en) * | 1984-11-19 | 1986-06-12 | Hitachi Kiden Kogyo Ltd | Linear induction motor |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2685566A1 (en) * | 1991-12-23 | 1993-06-25 | Koehler Gerard | Dynamo-electric machine consisting of sectors juxtaposed along the direction of movement, and method of manufacturing the said sectors |
JP2009542167A (en) * | 2006-02-03 | 2009-11-26 | シーメンス アクチエンゲゼルシヤフト | Electric machine with uneven pole teeth |
JP2007282350A (en) * | 2006-04-05 | 2007-10-25 | Sanyo Denki Co Ltd | Linear motor |
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