Back to results
US 11,908,649 B2Granted
Actuator with Thomson coils
AssigneeEaton Intelligent Power Limited
InventorsJayaraman Muniyappan, Andrew L. Gottschalk, Robert Michael Slepian
Life of this patent
Estimating the term…
Abstract
An actuator, which is a part of a combination that includes a pair of circuit interrupters, advantageously employs a plurality of Thomson coils that are electrically connected in parallel and that interact with a corresponding set of Thomson plates of a rotatable armature in order to perform useful work in a rapid fashion. In one embodiment, the useful work is to commutate current from one circuit interrupter to the other.
Claims20
An actuator comprising:
- a support;
- an armature that is rotatable with respect to the support about an axis of rotation;
- a plurality of Thomson coils that are each spaced from the axis of rotation;
- the armature comprising a hub and a plurality of Thomson plates, the plurality of Thomson plates each being electrically conductive and extending from the hub, each Thomson plate of the plurality of Thomson plates being situated adjacent a corresponding Thomson coil of the plurality of Thomson coils when the plurality of Thomson coils are in a non-energized state;
- and
- the armature further comprising an output shaft connected with the hub and being structured to rotate a rotational distance responsive to the Thomson coils being energized.
3 more elements
A combination comprising:
- a first circuit interrupter;
- a second circuit interrupter;
- an actuator structured to switch a current path that includes a protected portion of a circuit between the first interrupter and the second interrupter, the actuator comprising:
- a support;
- an armature that is rotatable with respect to the support about an axis of rotation;
- a plurality of Thomson coils that are each spaced from the axis of rotation;
- the armature comprising a hub and a plurality of Thomson plates, the plurality of Thomson plates each being electrically conductive and extending from the hub, each Thomson plate of the plurality of Thomson plates being situated adjacent a corresponding Thomson coil of the plurality of Thomson coils when the plurality of Thomson coils are in a non-energized state;
- and
- the armature further comprising an output shaft connected with the hub and being structured to rotate a rotational distance responsive to the Thomson coils being energized.
6 more elements
Dependencies are inferred from the claim text.