JPS6447262A - Linear dc brushless motor - Google Patents
Linear dc brushless motorInfo
- Publication number
- JPS6447262A JPS6447262A JP20316287A JP20316287A JPS6447262A JP S6447262 A JPS6447262 A JP S6447262A JP 20316287 A JP20316287 A JP 20316287A JP 20316287 A JP20316287 A JP 20316287A JP S6447262 A JPS6447262 A JP S6447262A
- Authority
- JP
- Japan
- Prior art keywords
- teeth
- propulsion
- core
- slantwise
- armature 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
Landscapes
- Linear Motors (AREA)
Abstract
PURPOSE:To dissolve the ripple propulsion by making such a construction that the teeth at both ends of an armature core and two pieces of teeth adjacent to them respectively are slantwise cut off from one longitudinal side toward the other longitudinal side. CONSTITUTION:An armature core 1 of a linear DC brushless motor is formed into such sections that cutting off was made slantwise at the face linking the teeth 1B at both ends, 1C next to 1B and 1D next to 1C with the edge G of the fourth teeth 1E from the edge F of the left outside of the teeth at the ends. The core 1 is formed by laminating a lot of laminations such as magnetic materials and silicon steel plates including the teeth of the ends slantwise cut off. Accordingly, the whole of core has skew effect on a permanent magnet 4 by the armature core 1, and the detent propulsion (ripple propulsion) caused by end-effect is formed into a sine waveform making one period of an electrode pitch.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20316287A JPS6447262A (en) | 1987-08-17 | 1987-08-17 | 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 |
---|---|---|---|
JP20316287A JPS6447262A (en) | 1987-08-17 | 1987-08-17 | Linear dc brushless motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6447262A true JPS6447262A (en) | 1989-02-21 |
Family
ID=16469468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20316287A Pending JPS6447262A (en) | 1987-08-15 | 1987-08-17 | Linear dc brushless motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6447262A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0576982A (en) * | 1991-05-17 | 1993-03-30 | Gooshiyuu:Kk | Formation of inner gear |
US5298819A (en) * | 1991-11-26 | 1994-03-29 | Otis Elevator Company | Winding arrangement for a tubular linear motor |
JP2006527576A (en) * | 2003-06-06 | 2006-11-30 | ビーイーアイ センサーズ アンド システムズ カンパニー インコーポレイテッド | Linear brushless DC motor with an iron core with reduced detent power |
US7362012B2 (en) | 2001-04-09 | 2008-04-22 | Bei Sensors And Systems Company, Inc. | Ironcore linear brushless DC motor with reduced detent force |
WO2015145550A1 (en) * | 2014-03-24 | 2015-10-01 | 富士機械製造株式会社 | Linear motor |
-
1987
- 1987-08-17 JP JP20316287A patent/JPS6447262A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0576982A (en) * | 1991-05-17 | 1993-03-30 | Gooshiyuu:Kk | Formation of inner gear |
US5298819A (en) * | 1991-11-26 | 1994-03-29 | Otis Elevator Company | Winding arrangement for a tubular linear motor |
US7362012B2 (en) | 2001-04-09 | 2008-04-22 | Bei Sensors And Systems Company, Inc. | Ironcore linear brushless DC motor with reduced detent force |
JP2006527576A (en) * | 2003-06-06 | 2006-11-30 | ビーイーアイ センサーズ アンド システムズ カンパニー インコーポレイテッド | Linear brushless DC motor with an iron core with reduced detent power |
WO2015145550A1 (en) * | 2014-03-24 | 2015-10-01 | 富士機械製造株式会社 | Linear motor |
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