US 12,176,166 B2
Solid-state circuit breaker includes airgap operating mechanism configured to operate in limited space
Raiden Jay Kim, Buford, GA (US); Guang Yang, Johns Creek, GA (US); Solomon R. Titus, Cumming, GA (US); Mark I. Shmukler, Duluth, GA (US); and Huy Nguyen, Suwanee, GA (US)
Assigned to Siemens Industry, Inc., Alpharetta, GA (US)
Filed by Siemens Industry, Inc., Alpharetta, GA (US)
Filed on Aug. 18, 2022, as Appl. No. 17/820,790.
Prior Publication US 2024/0062980 A1, Feb. 22, 2024
Int. Cl. H01H 1/22 (2006.01); H01H 71/12 (2006.01); H02H 9/02 (2006.01)
CPC H01H 71/123 (2013.01) [H01H 1/225 (2013.01); H02H 9/02 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A solid-state circuit breaker comprising:
an airgap operating mechanism including components; and
a housing that houses the components of the airgap operating mechanism such that each component in the operating mechanism is configured to achieve functions of ON, OFF, and TRIP, wherein the components of the operating mechanism include:
a contact arm,
a handle,
an interface feature between the handle and the contact arm to adjust the contact arm ensuring an optimal positioning,
a double pivot of the contact arm and a handle feature in that the contact arm has two-pivot legs to provide a double pivot of the contact arm and the handle such that the two-pivot legs reduce a pop-out force, which is a detrimental force from an operating spring pushing parts out of the solid-state circuit breaker during an assembly process,
an armature,
an armature pivot feature and a stopper feature that work together to allow the armature to be able to have a stable pivot and a reset mechanism,
a cradle, and
a stopper pin configured to stop the cradle during a TRIP operation utilizes less space in comparison to a traditional method of using a thick plastic wall to surround the cradle at its stop.