JPS5716568A - Linear motor - Google Patents
Linear motorInfo
- Publication number
- JPS5716568A JPS5716568A JP9029080A JP9029080A JPS5716568A JP S5716568 A JPS5716568 A JP S5716568A JP 9029080 A JP9029080 A JP 9029080A JP 9029080 A JP9029080 A JP 9029080A JP S5716568 A JPS5716568 A JP S5716568A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- movable
- pole
- driving force
- magnetic flux
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/035—DC motors; Unipolar motors
- H02K41/0352—Unipolar motors
- H02K41/0354—Lorentz force motors, e.g. voice coil motors
- H02K41/0356—Lorentz force motors, e.g. voice coil motors moving along a straight path
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Linear Motors (AREA)
Abstract
PURPOSE:To reduce the leakage magnetic flux of a linear motor by surrounding a field magnet around the outside of a movable coil in a range that does not interrupt the movement of the coil. CONSTITUTION:A movable cylindrical coil 18 movably engaged with a cylindrical yoke 20 functioning as a magnetic path and movements is retained by a speed detecting coil 19 on the lower surface of an arm base 12. Field magnets 26, 27 made of plates having circular-arc section magnetized at N-pole at the inside and at S-pole at the outside of the same shape at both sides, are so secured at both ends to side plates 24, 25 respectively to surround the movable space of the coil 18 from front and rear. Since the leakage magnetic flux tending to generate reverse driving force to the running direction can be reduced in this manner, the driving force acting in the running direction of the movable coil can be increased.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9029080A JPS5716568A (en) | 1980-07-02 | 1980-07-02 | Linear motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9029080A JPS5716568A (en) | 1980-07-02 | 1980-07-02 | Linear motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5716568A true JPS5716568A (en) | 1982-01-28 |
Family
ID=13994392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9029080A Pending JPS5716568A (en) | 1980-07-02 | 1980-07-02 | Linear motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5716568A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62277060A (en) * | 1986-05-22 | 1987-12-01 | Shicoh Eng Co Ltd | Voice coil type linear dc motor with linear magnetic encoder |
-
1980
- 1980-07-02 JP JP9029080A patent/JPS5716568A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62277060A (en) * | 1986-05-22 | 1987-12-01 | Shicoh Eng Co Ltd | Voice coil type linear dc motor with linear magnetic encoder |
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