Quick-Action Bistable Polarized Electromagnetic Actuator
First Claim
1. An electromagnetic actuator composed of a mobile assembly composed of a fixed ferromagnetic statoric assembly including at least one electric energizing coil and at least one permanent magnet having two de-energized stable end of travel equilibrium positions, characterized in that the mobile assembly has two separate ferromagnetic armatures distributed on either side of the statoric assembly and each forming, with said statoric assembly, at least one magnetic circuit, and in that the permanent magnet magnetically cooperates with either one of the mobile ferromagnetic parts in de-energized stable end of travel equilibrium positions.
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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.
59 Citations
28 Claims
- 1. An electromagnetic actuator composed of a mobile assembly composed of a fixed ferromagnetic statoric assembly including at least one electric energizing coil and at least one permanent magnet having two de-energized stable end of travel equilibrium positions, characterized in that the mobile assembly has two separate ferromagnetic armatures distributed on either side of the statoric assembly and each forming, with said statoric assembly, at least one magnetic circuit, and in that the permanent magnet magnetically cooperates with either one of the mobile ferromagnetic parts in de-energized stable end of travel equilibrium positions.
Specification