US 12,255,031 B2
Switching device having an actuation unit, on-board electrical system and motor vehicle
Florian Pritscher, Landshut (DE); and Ingo Scherer, Fuerstenfeldbruck (DE)
Assigned to Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
Appl. No. 17/923,119
Filed by Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
PCT Filed Jun. 14, 2021, PCT No. PCT/EP2021/065885
§ 371(c)(1), (2) Date Nov. 3, 2022,
PCT Pub. No. WO2022/008166, PCT Pub. Date Jan. 13, 2022.
Claims priority of application No. 10 2020 118 308.9 (DE), filed on Jul. 10, 2020.
Prior Publication US 2023/0178308 A1, Jun. 8, 2023
Int. Cl. H01H 3/38 (2006.01); H01H 1/14 (2006.01); H01H 39/00 (2006.01)
CPC H01H 3/38 (2013.01) [H01H 1/14 (2013.01); H01H 39/006 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A switching device for an on-board electrical system of an electrically drivable motor vehicle, comprising:
an electromechanical switch which is configured to connect and interrupt a supply line of the on-board electrical system, wherein the electromechanical switch comprises:
a stationary first switching contact,
a movable second switching contact, and
an actuation unit which has a mechanical force-transmitting element and a drive element, wherein
to transfer from an open switching state to a closed switching state of the electromechanical switch, the drive element is configured to apply a driving force to the force transmitting element to move the force-transmitting element along a movement path, and the force-transmitting element moved along the movement path is configured to act mechanically on the second switching contact and to move the second switching contact toward the first switching contact, and
to maintain the closed switching state of the electromechanical switch, the force-transmitting element is configured to apply, at an end of the movement path, a pressing force to the second switching contact for pressing against the first switching contact, without continuing to apply the driving force via the drive element.