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US 12,494,333 B2Granted
Fault breaking contactor with dynamic air gap mechanism
AssigneeSensata Technologies, Inc.
InventorsPeter Donghae Song, Matthew Jackvony
Life of this patent
Estimating the term…
Abstract
Fault breaking contactors are disclosed. In an embodiment, an electromechanical switching device includes one or more terminals; a moveable contact; and an actuator assembly for moving the moveable contact between a closed position in which the moveable contact contacts the one or more terminals and an open position in which an air gap is maintained between the moveable contact and the one or more terminals; and a dynamic air gap mechanism configured to increase the air gap beyond that of the closed position in response to a fault current.
Claims6
An electromechanical switching device comprising:
- one or more terminals;
- a moveable contact;
- an actuator assembly for moving the moveable contact between a closed position in which the moveable contact contacts the one or more terminals and an open position in which an air gap is maintained between the moveable contact and the one or more terminals;
- an overtravel spring configured to compress to provide an increased air gap between the moveable contact and the one or more terminals beyond that of the open position in response to a fault current;
- and
- a restrike prevention mechanism that includes one or more friction/retention features configured to apply force to the moveable contact such that the moveable contact is retained with the increased air gap.
3 more elements
Dependencies are inferred from the claim text.