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US 2022/0068532 A1Published application
Flexible thomson coil to shape force profile/multi-stage thomson coil
AssigneeEaton Intelligent Power Limited
InventorsKOUSTUBH DNYANDEO ASHTEKAR, LI YU
Life of this patent
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Abstract
Coil-based actuators for use in opening and closing the separable contacts of circuit interrupters provide increased initial velocity for opening strokes and damping at the end of opening strokes. Electronics for adjusting the current profile of current supplied to coil-based actuators additionally provide increased initial velocity for opening strokes and damping at the conclusion of opening strokes.
Claims20
An actuator comprising:
- a shaft;
- a first hinged conductive member comprising a plurality of first skirt portions, the first skirt portions being coupled to a first location of the shaft via a plurality of movable hinges at an interior end of the first skirt portions;
- and
- a conductive coil member disposed at a second location of the shaft and having an opening through which the shaft passes,
- wherein the coil is structured to be electrically connected to a current source, and
- wherein the first skirt portions are structured to rotate about the movable hinges in response to changes in the current supplied to the conductive coil member.
3 more elements
An actuator comprising:
- a shaft;
- a multilayer coil member having an opening through which the shaft passes, the multilayer coil member comprising:
- a first housing;
- and
- a plurality of first conductive coils provided within the first housing and structured to be electrically connected to a first current source;
- and
- a composite conductive member coupled to the shaft at a location separate from the multilayer coil member, the composite conductive member comprising:
- a second housing;
- and
- a number of first ferromagnetic inserts provided within the second housing, and
- wherein the composite conductive member is structured to move relative to the multilayer coil member in response to changes in current supplied to the multilayer coil member.
8 more elements
Dependencies are inferred from the claim text.