US 11,990,296 B2
Short-circuiting device, converter and short-circuiting method
Werner Schmidt, Chemnitz (DE); Jürgen Einschenk, Panketal (DE); and Frank Schremmer, Fürth (DE)
Assigned to Innomotics GmbH, Nuremberg (DE)
Appl. No. 17/279,010
Filed by Innomotics GmbH, Nuremberg (DE)
PCT Filed Sep. 3, 2019, PCT No. PCT/EP2019/073379
§ 371(c)(1), (2) Date Mar. 23, 2021,
PCT Pub. No. WO2020/064271, PCT Pub. Date Apr. 2, 2020.
Claims priority of application No. 10 2018 216 211.5 (DE), filed on Sep. 24, 2018.
Prior Publication US 2022/0037096 A1, Feb. 3, 2022
Int. Cl. H01H 3/26 (2006.01)
CPC H01H 3/26 (2013.01) 17 Claims
OG exemplary drawing
 
1. An electrical short-circuiting device, comprising:
a fixed contact piece and a movable contact piece, said fixed and movable contact pieces being distanced from one another in a basic position and being electrically conductively connected to one another in a short-circuit position;
a drive configured to transfer the movable contact piece from the basic position into the short-circuit position; and
a trigger device including an electrically driven actuator for triggering the drive wherein the actuator comprises a fixed stator which includes a first coil and a rotor which includes a second coil for interaction with the first coil, the rotor and second coil linearly movable along an axis of motion, with the stator and the rotor being arranged along the axis of motion, said first and second coils being configured as air-core coils capable of being actively energized so that the interaction of the first coil with the second coil causes the first coil and the second coil to repel one another, thereby moving the rotor and the second coil along the axis of motion to trigger the drive.