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US 11,894,187 B2Granted
Systems and methods for multi-stable solenoid
AssigneeHUSCO Automotive Holdings LLC
InventorTrevor Wynkoop
Life of this patent
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Abstract
The present disclosure provides a multi-stable solenoid with one or more magnetic damping rings. In general, the magnetic damping rings provide an increased damping force to an armature of the multi-stable solenoid to ensure efficient operation, reduce detent position overshoot, and reduce an impact force at end positions.
Claims19
A solenoid, comprising:
- a wire coil;
- an armature including a permanent magnet, wherein the armature is moveable between two or more stable positions in response to selective energization of the wire coil;
- and
- one or more magnetic dampers arranged along a travel path of the armature,
- wherein the one or more magnetic dampers are configured to generate a magnetic damping force in a direction that opposes movement of the armature to restrict overshoot when the armature travels to one of the two or more stable positions, wherein the one or more magnetic dampers are electrically conductive and non-ferromagnetic.
2 more elements
A solenoid, comprising:
- a wire coil;
- an armature including a permanent magnet, wherein the armature is moveable between two stable positions in response to selective energization of the wire coil;
- and
- two magnetic dampers, each of the two magnetic dampers is arranged along a travel path of the armature at a respective one of the two stable positions,
- wherein the two magnetic dampers are configured to generate a magnetic damping force in response to relative movement between the armature and at least one of the two magnetic dampers, and
- wherein a direction of the magnetic damping force is opposite to a movement direction of the armature to restrict overshoot when the armature travels to one of the two stable positions.
3 more elements
Dependencies are inferred from the claim text.