US 12,273,047 B2
Inverter with optimized electromagnetic performance
Ivonne Trenz, Friedrichshafen (DE); Michael Kohr, Bodnegg (DE); Florian Pahn, Ravensburg (DE); Pengshuai Wang, Eriskirch (DE); Manuel Raimann, Salem (DE); Philipp Rau, Friedrichshafen (DE); Jonas Zeller, Friedrichshafen (DE); and Gerhard Müller, Immenstaad am Bodensee (DE)
Assigned to ZF Friedrichshafen AG, Friedrichshafen (DE)
Filed by ZF Friedrichshafen AG, Friedrichshafen, DE (US)
Filed on Sep. 30, 2022, as Appl. No. 17/957,608.
Claims priority of application No. 10 2021 210 938.1 (DE), filed on Sep. 30, 2021.
Prior Publication US 2023/0098335 A1, Mar. 30, 2023
Int. Cl. H02M 7/5387 (2007.01); B60K 1/00 (2006.01); H02M 1/44 (2007.01); H02M 7/00 (2006.01)
CPC H02M 7/5387 (2013.01) [B60K 1/00 (2013.01); H02M 1/44 (2013.01); H02M 7/003 (2013.01); B60K 2001/001 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An inverter for operating an electric drive in an electric vehicle and/or a hybrid vehicle, the inverter comprising:
a DC input configured to connect to a DC voltage source;
a link capacitor comprising a plurality of input contacts configured for injection of a DC current which is generated by the DC voltage source, wherein the input contacts are fitted to a capacitor housing of the link capacitor;
a plurality of half-bridges, each of which comprises a plurality of semiconductor switching elements for converting the DC current into an AC current having a plurality of phase currents, wherein the plurality of half-bridges are arranged in a row along a transverse direction to the inverter;
a DC conductor rail assembly configured to infeed the DC current to the half-bridges, and which comprises a positive DC conductor rail and a negative DC conductor rail, wherein the positive DC conductor rail and/or the negative DC conductor rail extends in a transverse direction to the inverter over the row of half-bridges, such that a width of the positive DC conductor rail and/or the negative DC conductor rail extends to a width of the row of half-bridges;
an AC conductor rail assembly configured to output the AC current to the electric drive; and
a cooler configured to cool the plurality of half-bridges.