US 12,451,312 B2
Switching device with at least one movable contact, at least one auxiliary contact, at least one spring contact and a contact plate
Robert Hoffmann, Berlin (DE); and Robert Minkwitz, Berlin (DE)
Assigned to TDK Electronics AG, Munich (DE)
Appl. No. 17/996,197
Filed by TDK Electronics AG, Munich (DE)
PCT Filed May 11, 2021, PCT No. PCT/EP2021/062471
§ 371(c)(1), (2) Date Oct. 13, 2022,
PCT Pub. No. WO2021/239460, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 10 2020 114 385.0 (DE), filed on May 28, 2020.
Prior Publication US 2023/0197388 A1, Jun. 22, 2023
Int. Cl. H01H 50/54 (2006.01); H01H 50/02 (2006.01)
CPC H01H 50/546 (2013.01) [H01H 50/023 (2013.01); H01H 50/541 (2013.01); H01H 2050/025 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A switching device comprising:
at least two fixed contacts and one movable contact in a switching chamber; and
at least two auxiliary contacts, two spring contacts and a contact plate in the switching chamber,
wherein each of the spring contacts contacts one of the auxiliary contacts with a first contact region and has a second contact region,
wherein the contact plate is movable together with the movable contact along a vertical direction,
wherein, for each of the spring contacts, the first contact region and the second contact region are arranged along the vertical direction with respect to each other,
wherein the movable contact is located along the vertical direction between the first contact region and the second contact region for each of the spring contacts, and
wherein the contact plate is configured to contact the second contact regions of the spring contacts in a first switching state of the switching device and is configured to be arranged at a distance from the second contact regions of the spring contacts in a second switching state.