The present disclosure provides a heatsink that can increase a fin area of a heat radiating fin while securing sufficient volumes of a heat receiving portion, heat insulating portion, and heat radiating portion even in an environment in which an installation space for the heatsink, more specifically, an installation space in a height direction of the heatsink is limited.

A heatsink including: a heat transport member having a heat receiving portion thermally connected to a heating element; a pipe body connected to a heat radiating portion of the heat transport member; and a heat radiating fin group which is thermally connected to the pipe body and in which a plurality of heat radiating fins is arranged, wherein the heat transport member has an integral internal space that communicates from the heat receiving portion to a connection portion with the pipe body and that is filled with a working fluid, the internal space of the heat transport member communicating with an internal space of the pipe body, and a cross-sectional area of an internal space in a direction orthogonal to a heat transport direction of the heat transport member in the heat radiating portion is smaller than the cross-sectional area in a heat insulating portion between the heat receiving portion and the heat radiating portion.

A heat exchanger manifold for use in a heat exchanger having a plurality of microtubes includes a receiving component for supporting and forming a seal about each of the plurality of microtubes and a circuiting component having at least one recessed channel for defining an enclosed flow configuration of a fluid of the heat exchanger. The receiving component is joined and sealed to the circuiting component such that an internal flow passage of the plurality of microtubes is arranged in fluid communication with the at least one recessed channel.

A heat exchanger manifold for use in a heat exchanger having a plurality of microtubes includes a receiving component for supporting and forming a seal about each of the plurality of microtubes and a circuiting component having at least one recessed channel for defining an enclosed flow configuration of a fluid of the heat exchanger. The receiving component is joined and sealed to the circuiting component such that an internal flow passage of the plurality of microtubes is arranged in fluid communication with the at least one recessed channel.

Condenser tubes with non-uniform surface enhancements are described herein. In one example, the condenser tube may include a tube having a first end, a second end opposite the first end, an interior surface, and an exterior surface. The condenser tube may have a longitudinal bore defined by the interior surface and extending from the first end to the second end and configured to transport a coolant. The exterior surface may have a top portion and a bottom portion. The top portion may have a substantially smooth region. The bottom portion may have a plurality of surface enhancements extending longitudinally from the first end to the second end. In one application, the condenser tubes with non-uniform surface enhancements may be deployed in condensers for two-phase immersion cooling systems. Other examples may be claimed or described.

Condenser tubes with non-uniform surface enhancements are described herein. In one example, the condenser tube may include a tube having a first end, a second end opposite the first end, an interior surface, and an exterior surface. The condenser tube may have a longitudinal bore defined by the interior surface and extending from the first end to the second end and configured to transport a coolant. The exterior surface may have a top portion and a bottom portion. The top portion may have a substantially smooth region. The bottom portion may have a plurality of surface enhancements extending longitudinally from the first end to the second end. In one application, the condenser tubes with non-uniform surface enhancements may be deployed in condensers for two-phase immersion cooling systems. Other examples may be claimed or described.

A cast part includes an outermost wall, at least one inner wall defining at least two internal passages and at least one cast cooling fin extending from an outer surface. The cast part including a cross-sectional circular area spanning at least a portion of each of four internal passages includes a ratio of interior empty space to inner wall space that improves heat transfer.

A featured embodiment of a cast plate heat exchanger assembly includes a cast plate including a plate portion defining a plurality of internal passages. A plurality of fin portions extend from the plate portion. First augmentation structures are disposed on surfaces of the fin portions for conditioning cooling airflow to enhance transfer of thermal energy. A method is also disclosed.

A cast part includes an outermost wall, at least one inner wall defining at least two internal passages and at least one cast cooling fin extending from an outer surface. The cooling fin includes a ratio of fin height to an average fin thickness that is greater than 2.0 and no more than 18.0. A method is also disclosed.

Disclosed is a cover fin including a front part and a rear part being perpendicular to a forward/rearward direction and spaced apart from each other in the forward/rearward direction, a connecting part connecting the front part and the rear part, a leg part extending from an upper end of the rear part toward an upper side when one direction being perpendicular to the forward/rearward direction is defined as an upward/downward direction, and a protrusion protruding from the leg part to a rear side.

Disclosed is a cover fin including a front part and a rear part being perpendicular to a forward/rearward direction and spaced apart from each other in the forward/rearward direction, a connecting part connecting the front part and the rear part, a leg part extending from an upper end of the rear part toward an upper side when one direction being perpendicular to the forward/rearward direction is defined as an upward/downward direction, and a protrusion protruding from the leg part to a rear side.