Single-phased compact linear electromagnetic actuator
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United States of America Patent
Stats
-
Aug 4, 1992
Grant Date -
N/A
app pub date -
Jan 18, 1990
filing date -
Jun 16, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A compact electromagnetic actuator having at least one stable position in the absence of current and an area of constant torque or force under a constant current. The actuator includes a movable member having at least one thin portion magnetized normal to the displacement direction thereof, as well as a stator structure defining an air gap therebetween. The stator structure includes first and second magnetic circuits separated by an air gap. The first magnetic circuit includes at least one energization electric coil and polar portions. At least one of the polar portions has a side bevelled strip inducing an adjustment for displacements near limit-stop of the movable member.
First Claim
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Patent Citation Ranking
- 48 Citation Count
- H02K Class
- 0 % this patent is cited more than
- 33 Age