US 12,322,846 B2
Fuel cell system
Dirk Schnittger, Ludwigsburg (DE); Friedrich Howey, Ditzingen (DE); Rolf-Peter Essling, Reudern (DE); and Wolfgang Weissgerber, Stuttgart (DE)
Assigned to Robert Bosch GmbH, Stuttgart (DE)
Appl. No. 17/627,882
Filed by Robert Bosch GmbH, Stuttgart (DE)
PCT Filed Jun. 9, 2020, PCT No. PCT/EP2020/065926
§ 371(c)(1), (2) Date Jan. 18, 2022,
PCT Pub. No. WO2021/013423, PCT Pub. Date Jan. 28, 2021.
Claims priority of application No. 10 2019 210 717.6 (DE), filed on Jul. 19, 2019.
Prior Publication US 2022/0255108 A1, Aug. 11, 2022
Int. Cl. H01M 8/2475 (2016.01); H01M 8/248 (2016.01)
CPC H01M 8/2475 (2013.01) [H01M 8/248 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A fuel cell system, comprising a fuel cell stack which is received in a first housing and an energy supply unit which is received in a second housing, the two housings being connected or configured to be connected in such a way that first and second openings which are provided in the first and second housings, respectively, lie opposite one another and overlap one another at least in regions,
wherein an intermediate piece is arranged in a region of first and second openings, which intermediate piece surrounds a pin-shaped or sleeve-shaped contact element, the intermediate piece enclosing the pin-shaped or sleeve-shaped contact element directly or indirectly via a sealing ring in a water-tight manner and insulating the pin-shaped or sleeve-shaped contact element electrically at least with respect to one of the first and second housings,
wherein the pin-shaped or sleeve-shaped contact element is supported at at least one end on a busbar for electrical contacting of the fuel cell stack and/or the energy supply unit, and
wherein a tie rod is guided through the pin-shaped or sleeve-shaped contact element and the busbar, which tie rod is fixed by a locking element at at least one end.