Quick-action bistable polarized electromagnetic actuator
First Claim
1. An electromagnetic actuator, comprising:
- a fixed ferromagnetic statoric assembly including a single electric energizing coil and a permanent magnet;
first and second separate ferromagnetic armatures distributed on either side of the statoric assembly, the first and second armatures having a fixed relative position and being movable between first and second de-energized stable end positions;
the first and second armatures each forming one magnetic circuit with the statoric assembly in the first and second end positions, respectively; and
the permanent magnet magnetically cooperates with the first and second armatures to form a magnetic circuit, respectively, in each of the first and second end positions.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention relates to an electromagnetic actuator comprised of a mobile assembly, a fixed ferromagnetic stator assembly, at least one electric field coil, and of at least one permanent magnet, having two stable positions of equilibrium without current at its ends of travel. The invention is characterized in that the mobile assembly has two distinct ferromagnetic armatures placed on both sides of the stator assembly and each forms, together with the stator assembly, at least one magnetic circuit, and is characterized in that the permanent magnet magnetically cooperates with one of the other ferromagnetic mobile parts in a stable position of equilibrium without current at the end of travel.
-
Citations
27 Claims
-
1. An electromagnetic actuator, comprising:
-
a fixed ferromagnetic statoric assembly including a single electric energizing coil and a permanent magnet; first and second separate ferromagnetic armatures distributed on either side of the statoric assembly, the first and second armatures having a fixed relative position and being movable between first and second de-energized stable end positions; the first and second armatures each forming one magnetic circuit with the statoric assembly in the first and second end positions, respectively; and the permanent magnet magnetically cooperates with the first and second armatures to form a magnetic circuit, respectively, in each of the first and second end positions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
-
Specification