An evaporator includes: fins disposed at a predetermined interval in a fin thickness direction; heat transfer tubes extending through the fins in the fin thickness direction; and a first heat exchange section in which, when the heat transfer tubes are viewed in the fin thickness direction, a center of distribution of the heat transfer tubes in an airflow direction is disposed on a leeward side of a center of the fins in the airflow direction. The evaporator is disposed in a refrigeration cycle apparatus in which a non-azeotropic refrigerant mixture is enclosed.

A heat exchanger system is provided and includes a heat sink, fins arrayed on a central region of the heat sink to form channels between adjacent fins and an integrated blower. Each of the fins extends radially outwardly from the central region and has a height that increases with increasing distance from the central region. The integrated blower is disposed at the central region to generate flows of coolant directed into and through the channels.

A finless heat exchanger includes two headers and a plurality of heat transfer tubes spaced apart from each other and arranged side by side. The two headers each have a plurality of insertion holes, to which both ends of the heat transfer tubes are fitted and connected. The heat transfer tubes each include straight portions extending in a direction orthogonal to an arrangement direction, in which the heat transfer tubes are arranged, and turning portions. The straight portions and the turning portions are alternately and continuously arranged.

A heat exchanger includes a distributor, and a first heat transfer tube and a second heat transfer tube connected in parallel with each other with respect to the distributor. The first heat transfer tube is disposed above the second heat transfer tube. The first heat transfer tube has a first inner circumferential surface, and at least one first groove recessed relative to the first inner circumferential surface and arranged side by side in a circumferential direction of the heat transfer tube. The second heat transfer tube has a second inner circumferential surface, and at least one second groove recessed relative to the second inner circumferential surface and arranged side by side in a circumferential direction. An internal pressure loss of the first heat transfer tube is smaller than an internal pressure loss of the second heat transfer tube.

A heat exchanger includes: heat transfer tubes disposed along a predetermined direction; and a header that retains longitudinal ends of the heat transfer tubes. The header includes: a first member including a main wall portion that has through holes through which the longitudinal ends respectively pass; a second member defining insertion spaces that communicate with the heat transfer tubes at the longitudinal ends; and a third member facing the longitudinal ends. The second member includes: a pair of side plates disposed in a width direction of the header and that define the insertion spaces therebetween; and a partition plate connected to the pair of side plates and that separates adjacent ones of the insertion spaces.

A heat exchanger is provided. The heat exchanger includes a configuration in which a heat transfer tube having a flat shape passes through a plurality of fins, and capable of securing drainage performance of condensed water retained on a surface of the heat transfer tube while improving a heat transfer rate, and further capable of suppressing an increase in ventilation resistance. The heat exchanger includes a heat transfer tube formed in a flat shape, and a plurality of fins, and a refrigerant flowing inside the heat transfer tube exchanges heat with air flowing between the plurality of fins. The fin includes a heat transfer expansion surface including a peak portion and a valley portion provided along an air flow direction, and a drain structure provided to overlap the heat transfer expansion surface.

A heat exchanger is provided. The heat exchanger comprises: a first header comprising a first globe and a second globe; a second header disposed in parallel with the first header; a tube assembly comprising multiple first tubes for connecting the first header and the second header and causing a refrigerant introduced from the first globe to flow in a first direction toward the position of the second header, and multiple second tubes disposed continuously with the multiple first tubes so as to cause a refrigerant introduced from the second header to flow in a second direction that is opposite to the first direction; and multiple heat exchange-fins individually having multiple insertion portions, into which the multiple first tubes and the multiple second tubes are inserted, respectively, and heat exchange surfaces disposed between the multiple insertion portions. The first heat-exchange fin, which is adjacent to the first header among the multiple heat exchange fins, has a heat-exchange surface including a first surface having a louver formed thereon, and a second surface formed to be flat and adjacent to insertion portions into which multiple second tubes are inserted. The second heat-exchange fin, which is adjacent to the second header, has a heat-exchange surface including a first surface.

A cooling system interface for system cooling of a plurality of memory modules comprises a plurality of thermal interface material (TIM) blankets and a heatsink comprising a plurality of conductive fins. A TIM blanket may be positioned on each memory module and the heatsink may be positioned relative to the array of memory modules such that a conductive fin is positioned between two adjacent memory modules and a conduction fin is positioned relative to the memory modules on each end of the array. Each TIM blanket comprises a thickness based on components on the memory module and each conduction fin has a rigidity and thickness to ensure conformal contact between the TIM blanket and a conduction fin. Slidable contact between the conduction fins and TIM blankets allows the cooling system interface to be removed for servicing the memory module.

A heat exchanger includes a flat tube and a plurality of fins. The plurality of fins are arranged on the flat tube and inclined with respect to a longitudinal direction of a cross section perpendicular to an axis of the flat tube. The plurality of fins may be inclined at different angles with respect to the axis of the flat tube. The flat tube may include a straight portion on which the plurality of fins are arranged, and a bend on which at least one fin other than the plurality of fins is arranged. The at least one fin extends perpendicularly to the axis of the flat tube.

Disclosed is a heat exchanger that improves heat conduction performance. The heat exchanger includes at least one refrigerant tube including a plurality of sections arranged in a first direction and a plurality of heat exchanger fins arranged on the plurality of sections. Each of the plurality of heat exchanger fins includes at least one through hole provided to allow the at least one refrigerant tube to be inserted thereinto in a second direction perpendicular to the first direction and at least one contact member configured to protrude from one surface of the heat exchanger fin around the through hole and surround an outer circumferential surface of the refrigerant tube.