US 12,003,091 B2
Circuit breaker device for DC voltage
Thomas Beckert, Nuremberg (DE); Peter Koellensperger, Heroldsberg (DE); Hauke Nannen, Nuremberg (DE); Hubert Schierling, Erlangen (DE); and Dieter Waegele, Oberasbach (DE)
Assigned to SIEMENS AKTIENGESELLSCHAFT, Munich (DE)
Appl. No. 17/440,937
Filed by Siemens Aktiengesellschaft, Munich (DE)
PCT Filed Mar. 13, 2020, PCT No. PCT/EP2020/056747
§ 371(c)(1), (2) Date Sep. 20, 2021,
PCT Pub. No. WO2020/193167, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 10 2019 203 977.4 (DE), filed on Mar. 22, 2019.
Prior Publication US 2022/0166206 A1, May 26, 2022
Int. Cl. H02H 3/087 (2006.01); H02H 1/00 (2006.01); H02H 3/44 (2006.01); H02H 7/26 (2006.01); H02J 1/00 (2006.01); H02M 1/32 (2007.01); H03K 17/082 (2006.01)
CPC H02H 3/087 (2013.01) [H02H 1/0007 (2013.01); H02H 3/44 (2013.01); H02H 7/268 (2013.01); H02J 1/00 (2013.01); H02M 1/32 (2013.01); H03K 17/0828 (2013.01); H03K 2217/0027 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A circuit breaker device for coupling a DC voltage branch with a positive conductor and a negative conductor to a DC voltage bus, the circuit breaker device comprising:
a series circuit including a safety fuse; and
a unidirectional switching module arranged in a housing, the housing including a positive conductor input connection, a negative conductor input connection, a positive conductor output connection and a negative conductor output connection,
wherein the positive conductor input connection and the negative conductor input connection are connectable to the DC voltage bus,
wherein the positive conductor output connection and the negative conductor output connection are connectable to the DC voltage branch,
wherein either the unidirectional switching module is provided between the positive conductor input connection and the positive conductor output connection or the unidirectional switching module is provided between the negative conductor input connection and the negative conductor output connection, and
wherein the unidirectional switching module including a parallel circuit includes
a controllable semiconductor switching element, and
a diode, wherein
the controllable semiconductor switching element is conductive only in a first current direction of a current, and
the diode is in a conducting state in a second current direction of the current, opposite the first current direction.