Patent attributes
A cooler includes a coolant flow path between a first cooling plate and a second cooling plate segmented into a plurality of flow path segments along a flow-path traverse direction. The plurality of flow path segments includes at least one first flow path segment and at least one second flow path segment. Each first flow path segment includes: a first inner plate partitioning an internal space thereof into a first space and a second space and having a first nozzle that jets the coolant from the first space toward the second cooling plate. Each second flow path segment includes: a second inner plate partitioning an internal space thereof into a first space and a second space and having a second nozzle that jets the coolant from the second space toward the first cooling plate. The first inner and second inner plates are aligned in the flow-path traverse direction.