US 12,278,541 B2
Method and apparatus for active cooling of intake air for a hybrid cooled belt starter generator
Andrew Joseph Wisniewski, South Lyon, MI (US); and Laura Noel Church, Mancelona, MI (US)
Assigned to Vitesco Technologies USA, LLC, Auburn Hills, MI (US)
Filed by Vitesco Technologies USA, LLC, Auburn Hills, MI (US)
Filed on Mar. 28, 2022, as Appl. No. 17/656,654.
Prior Publication US 2023/0307982 A1, Sep. 28, 2023
Int. Cl. H02K 5/20 (2006.01); H02K 5/15 (2006.01); H02K 5/18 (2006.01); H02K 9/06 (2006.01); H02K 9/22 (2006.01)
CPC H02K 5/207 (2021.01) [H02K 5/15 (2013.01); H02K 9/06 (2013.01); H02K 9/227 (2021.01)] 15 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a cooling system for a belt starter generator, comprising:
at least one housing portion;
a heat sink connected to the housing portion, the heat sink is cooled by primary cooling, the heat sink further comprising:
a flow cavity, the primary cooling to the heat sink is provided by fluid flowing circulating through the flow cavity;
at least one cooling feature being part of the heat sink, the cooling feature cooled by secondary cooling;
a rotor at least partially disposed in the housing portion;
a PCB being part of the belt starter generator, the PCB connected to the heat sink;
a mainframe connected to the at least one housing portion and the heat sink, such that the heat sink is disposed between the PCB and the mainframe; and
at least one air flow path;
wherein air flows along the at least one air flow path such that the air is cooled by the at least one cooling feature, and then flows into the at least one housing portion to cool the rotor to provide the secondary cooling to the rotor.