Active and passive heat flux control systems for two-phase immersive cooling for high power density electric vehicle components

A cooling system for an electric vehicle component, comprising:

• a housing configured to enclose an electric vehicle component immersed in cooling fluid,
• wherein heat from operation of the electric vehicle component causes the cooling fluid to transition between a liquid state and a vapor state;
• a condenser arranged in the housing and configured to cause the cooling fluid to transition from the vapor state back to the liquid state;
• a pressure wave generator configured to selectively generate pressure waves in the cooling fluid;
• and
• a controller configured adjust operation of the pressure wave generator in response to a first temperature of the electric vehicle component.

A cooling system for an electric vehicle component, comprising:

• a housing enclosing an electric vehicle component immersed in cooling fluid and defining a first volume,
• wherein heat from operation of the electric vehicle component causes the cooling fluid to transition between a liquid state and a vapor state;
• a condenser arranged in the housing and configured to cause the cooling fluid to transition from the vapor state back to the liquid state;
• and
• a variable volume member defining a second volume in fluid communication with the first volume, wherein the second volume varies in response changes in pressure in the housing.