Electric machine module cooling system and method

摘要

Some embodiments of the invention provide an electric machine module. The module can include a housing, which can define a machine cavity. In some embodiments, a coolant jacket can be at least partially positioned within the housing. Some embodiments include a sleeve member at least partially surrounding the coolant jacket. In some embodiments, a stator assembly including stator end turns can be at least partially disposed within the housing and can be at least partially circumferentially surrounded by the coolant jacket. Some embodiments provide at least one coolant apertures being in fluid communication with the coolant jacket. Some embodiments can include at least one end turn cavity at least partially surrounding a stator end turn and fluidly coupled to the coolant jacket via at least one coolant aperture. In some embodiments, the at least one end turn cavity is in fluid communication with the coolant jacket and the machine cavity.