Abstract: An electronic and/or computer device of the computer server type includes: circuit boards and a power supply unit which provides electrical power to various elements of the electronic device. The power supply unit has a fluidtight enclosure, filled with dielectric fluid capable of collecting heat from various components of the power supply unit in order to release it to a heat exchange wall, and is removable. The device includes a two-phase heat transfer circuit with capillary pumped loop having an evaporator thermally coupled to the heat exchange wall of the power supply unit, and a condenser located at a distance from the power supply unit and thermally coupled to a general thermal collector, such that, when in the working position, the heat exchange zone is pressed against the evaporator.

Abstract: A computer assembly, having a generally parallelepiped shape with regard to a set of three orthogonal axis XYZ, includes a mother board and an auxiliary board, a first cooling loop with a first heat-intake exchanger in contact with at least one processing unit of the mother board, and a first heat-discharge exchanger, and fluid connections, a second cooling loop with a second heat-intake exchanger in contact with at least one processing unit of the auxiliary board, and a second heat-discharge exchanger, and fluid connections. The first heat-discharge exchanger comprises a first strength member extending at least along a plane XZ and a plurality of first air-cooled fins. The second heat-discharge exchanger comprises a second strength member extending at least along a plane YZ a plurality of second air-cooled fins. The first strength member is fixed to the second strength member to form thereby the structural chassis of the computer assembly.

Abstract: An evaporator for a diphasic heat transfer system with capillary pumping, includes a base plate with a peripheral edge and an outer face for receiving heat receiving calories from a dissipative element, a body with a bottom, side portions and a border adjacent to the peripheral border of the base plate, a porous mass forming a layer with a capillary structure, interposed between the base plate and the bottom, which defines a first gas chamber and a second liquid chamber, the body being assembled on the base plate by crimping, such that there is no need for a gluing, screwing, riveting or welding operation to obtain a tight assembly of the evaporator.