US 11,942,298 B2
Switching device
Armin Grunack, Berlin (DE); and Torsten Klinger, Radebeul (DE)
Assigned to TDK Electronics AG, Munich (DE)
Appl. No. 17/271,132
Filed by TDK Electronics AG, Munich (DE)
PCT Filed Aug. 16, 2019, PCT No. PCT/EP2019/072038
§ 371(c)(1), (2) Date Feb. 24, 2021,
PCT Pub. No. WO2020/043515, PCT Pub. Date Mar. 5, 2020.
Claims priority of application No. 102018120984.3 (DE), filed on Aug. 28, 2018.
Prior Publication US 2021/0249210 A1, Aug. 12, 2021
Int. Cl. H01H 51/28 (2006.01); H01H 1/20 (2006.01); H01H 47/00 (2006.01); H01H 50/02 (2006.01); H01H 71/04 (2006.01)
CPC H01H 51/28 (2013.01) [H01H 1/20 (2013.01); H01H 47/002 (2013.01); H01H 50/023 (2013.01); H01H 71/04 (2013.01); H01H 2071/048 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A switching device comprising:
at least one stationary contact;
a movable contact;
an armature;
a permanent magnet; and
a magnetically-operated switch,
wherein the movable contact is movable by the armature,
wherein the permanent magnet is attached to the armature,
wherein the magnetically-operated switch is a Hall switch,
wherein the magnetically-operated switch is connected to a signal processing device,
wherein the signal processing device comprises a measuring resistor directly connected in series to the magnetically-operated switch, and
wherein the signal processing device is configured to detect a state of the magnetically-operated switch.