Abstract: A heat exchanger includes a corrugated metal sheet comprising a first side having a plurality of first troughs alternating with a plurality of first peaks, and a second side having a plurality of second troughs alternating with a plurality of second peaks, each trough being formed by a pair of walls, each wall separating the first side from the second side and extending from a first peak to a second peak, the troughs and peaks extending in parallel and defining a longitudinal direction. Each first peak is formed with at least one depression, the depressions in respective peaks being aligned to form at least one tube-receiving channel extending transversely to the longitudinal direction. Each depression has a contact surface formed in the first side and extending laterally over each adjacent first trough. A tube section is received in each tube-receiving channel in substantially conforming contact with the contact surfaces.

Abstract: A heat exchanger includes a corrugated metal sheet comprising a first side having a plurality of first troughs alternating with a plurality of first peaks, and a second side having a plurality of second troughs alternating with a plurality of second peaks, each trough being formed by a pair of walls, each wall separating the first side from the second side and extending from a first peak to a second peak, the troughs and peaks extending in parallel and defining a longitudinal direction. Each first peak is formed with at least one depression, the depressions in respective peaks being aligned to form at least one tube-receiving channel extending transversely to the longitudinal direction. Each depression has a contact surface formed in the first side and extending laterally over each adjacent first trough. A tube section is received in each tube-receiving channel in substantially conforming contact with the contact surfaces.

Abstract: A liquid cooled heat sink for cooling heat generating components. The heat sink has a base member with open ended channels formed in at least one surface thereof. The open ends of the channels have a span less than a span across a lower portion of the channels. A fluid conduit is disposed in said channels. The fluid conduit has an outer span greater than the span across the open ends of the channels and a flattened surface which is substantially coplanar with the surface of the heat sink base member having the channels therein.

Abstract: A heat sink assembly made up of a heat sink, an electrical component adapted for mounting to a region of a printed circuit board mounted and, a clip. The clip includes a planar horizontal section, a pair of vertically extending legs disposed along folds formed at opposing ends of the horizontal section and, an engaging section disposed along an edge of the horizontal section and positioned intermediate the opposing ends of the horizontal section. The engaging section is adapted engage the heat sink and force the heat sink against the printed circuit board mounted electrical component as the legs of the clip engage the printed circuit board through holes formed in the printed circuit board on opposing sides of the component mounting region of the printed circuit board. A pair of gussets, is disposed at the folds formed at the opposing ends of the horizontal section. The gussets are provided to "lock in" the bend between the legs and the horizontal section at 90 degrees.

Abstract: A heat dissipator including a thermally conductive material having a face adapted to contact a semiconductor to be cooled, and a clip for engaging the body and resiliently clamping the semiconductor device against the contact face. The clip has at least one attachment element which, like the leads of the semiconductor device, projects beyond one edge of the dissipator body, the attachment elements being used to join the body and hence the semiconductor device to a support, such as a printed circuit board. The clip may be formed of a solderable material which is different from the material of which the body is formed. The clip may be a single length of bent spring wire, or piece of bent sheet metal.

Abstract: A method of manufacturing a high fin density heat dissipator is disclosed in which the dissipator is extruded through a die in a partially cylindrical shape with the elongated fins arranged on the base and extending radially therefrom. The extruded dissipator is straightened under tensile and bumping forces in a manner such that the base assumes a planar shape and the fins become substantially parallel to each other. Apparatus for straightening the extruded dissipator and a die for extruding the same are illustrated and described.