US 12,445,014 B2
Electric machine with open coil winding for direct cooling
Florian Schulz, Munich (DE)
Assigned to ROLLS-ROYCE DEUTSCHLAND LTD & CO KG, Blankenfelde-Mahlow (DE)
Filed by Rolls-Royce Deutschland Ltd & Co KG, Blankenfelde-Mahlow (DE)
Filed on Sep. 16, 2023, as Appl. No. 18/369,147.
Claims priority of application No. 10 2022 209 762.9 (DE), filed on Sep. 16, 2022.
Prior Publication US 2024/0097530 A1, Mar. 21, 2024
Int. Cl. H02K 9/00 (2006.01); B64D 27/24 (2024.01); H02K 3/32 (2006.01); H02K 5/10 (2006.01); H02K 5/20 (2006.01); H02K 15/06 (2025.01)
CPC H02K 9/00 (2013.01) [B64D 27/24 (2013.01); H02K 3/32 (2013.01); H02K 5/10 (2013.01); H02K 5/20 (2013.01); H02K 15/06 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electrical machine comprising:
a flow path for a coolant fluid;
a housing comprising an interior that is sealed off in an airtight and watertight manner from the flow path, wherein the flow path is positioned outside of the housing;
a power supply unit; and
at least one coil that comprises at least one insulated section and contacts,
wherein the at least one coil comprises end sections that extend through a wall of the housing into the interior of the housing,
wherein the contacts of the at least one coil are positioned at the end sections and are electrically connected in the interior of the housing to contacts of the power supply unit, and
wherein the at least one insulated section of the at least one coil is arranged in the flow path outside of the housing.