US 12,471,259 B2
Cooling arrangement with cooling fluid circuit and power electronics
Martin Fuechtner, Stuttgart (DE)
Assigned to DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT, Stuttgart (DE)
Filed by Dr. Ing. h.c. F. Porsche Aktiengesellschaft, Stuttgart (DE)
Filed on Dec. 1, 2022, as Appl. No. 18/060,642.
Claims priority of application No. 102021131736.3 (DE), filed on Dec. 2, 2021.
Prior Publication US 2023/0180445 A1, Jun. 8, 2023
Int. Cl. H05K 7/20 (2006.01); H01L 23/44 (2006.01)
CPC H05K 7/20927 (2013.01) [H01L 23/44 (2013.01); H05K 7/20236 (2013.01); H05K 7/20263 (2013.01); H05K 7/20272 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A cooling arrangement for cooling at least one power cell of a motor vehicle, the cooling arrangement comprising:
a power cell; and
a cooling fluid circuit,
wherein the power cell is directly electrically connected to at least one power conductor of an electric power supply,
wherein a cooling fluid is configured to circulate in the cooling fluid circuit,
wherein the cooling fluid circuit is fluidly connected to the power cell and/or the at least one power conductor,
wherein at least one fluid path of the cooling fluid circuit is provided in the power cell, which path is perfusable by the cooling fluid,
wherein the at least one fluid path follows an electrical power path between the power cell and at least one other component to be cooled, and
wherein the cooling fluid is a cooling medium having electrically insulating properties,
wherein the power cell comprises a conductive sheet in thermal contact with a conductive structure,
wherein the cooling fluid circuit comprises a cooling fluid line,
wherein the at least one power conductor enters the cooling fluid line through a wall of the cooling fluid line and electrically connects to the conductive sheet,
wherein the conductive sheet is arranged within the cooling fluid line and spaced apart from the wall of the cooling fluid line,
wherein a perfusable gap is formed between the conductive sheet and the wall of the cooling fluid line for electrical insulation between the conductive sheet and the wall of the cooling fluid line, through which perfusable gap the cooling fluid flows,
wherein a second power conductor of the at least one power conductor enters the cooling fluid line through an opposite side of the wall of the cooling fluid line from which the at least one power conductor enters and electrically connects to a second conductive sheet in thermal contact with the conductive structure,
wherein the second conductive sheet is arranged within the cooling fluid line and spaced apart from the opposite side of the wall of the cooling fluid line, and
wherein a second perfusable gap is formed between the second conductive sheet and the opposite side of the wall of the cooling fluid line for electrical insulation between the second conductive sheet and the wall of the cooling fluid line, through which the second perfusable gap the cooling fluid flows.