A heat exchanger includes a plurality of flat heat transfer tubes each having a flat cross-sectional shape, a flat outer side surface, and an interior defining a passage through which a fluid flows, the plurality of flat heat transfer tubes being arranged with the flat outer side surfaces facing each other, and a plurality of corrugated fins each having a wavy shape, each of the plurality of corrugated fins being disposed between and joined to flat heat transfer tubes of the plurality of flat heat transfer tubes that are adjacent to each other. Each of the plurality of corrugated fins has portions that correspond to peaks of the wavy shape and have lower flexural rigidity than other portions of the corrugated fin.

A cooling device includes: a container in which a refrigerant is sealed; an evaporation circuit that evaporates the refrigerant in a liquid phase inside the container by heat reception; a condensation circuit that condenses the refrigerant in a gas phase inside the container by heat radiation; a transport circuit that transports the refrigerant in the liquid phase inside the container to the evaporation circuit by a capillary phenomenon; a heat radiation member that includes fins, and includes a narrow portion that has a width in a direction orthogonal to a flow direction of cooling air that is narrow on a downstream side in the flow direction, and a wide portion that has the width that is wide on an upstream side in the flow direction; and an air guide member that is provided on the downstream side of the wide portion and on the upstream side of the narrow portion.

The present disclosure provides a louvered fin including a leading edge, a trailing edge, and a surface extending between the leading edge and the trailing edge. The surface defines a first set of holes along a first axis, a second set of holes along a second axis and offset from the first set of holes, and a third set of holes along a third axis and offset from the second set of holes. Each of the first axis, the second axis, and the third axis extends substantially parallel to a longitudinal axis of the fin. A first offset distance between the second and first set of holes is greater than a second offset distance between the third and second set of holes. The second and the third set of holes define a substantially obtuse trapezoidal matrix.

Systems and methods for providing a fin structure. The fin structure may be employed in a heat exchanger. The fin structure comprises: a support structure; and a plurality of fins disposed on the support structure via additive manufacturing so as to facilitate a change in direction of a fluid flowing through the fin structure. The fins comprise first fins that have centers arranged in accordance with a phyllotaxis or Fibonacci pattern.

A heat dissipation structure includes a heat dissipation portion and a heat storage portion. The heat dissipation portion has the heat receiving surface including the contact surface in contact with the semiconductor generating the heat, and dissipates the heat of the semiconductor in contact with the contact surface. The heat storage portion is arranged to sandwich the semiconductor. The heat storage portion has, for example, the heat storage opening portion in which the semiconductor is positioned, and surrounds the semiconductor. The heat storage portion is provided to he in contact with the heat receiving surface, and stores the heat of the semiconductor conducted through the heat dissipation portion.

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 fin element for a heat exchanger, in particular for a heating, ventilation, and/or air conditioning system of a motor vehicle, with a plurality of connecting sections and of longitudinal sections, whereby in each case two adjacent longitudinal sections are connected to one another by a connecting section, whereby at least one of the longitudinal sections has gills formed by webs and slots, whereby at least one of the webs has a flared web surface, whereby the web surface is flared out from the at least one longitudinal section, whereby the web surface forms at least two surface sections arranged angled to one another.

At least one heat pipe is fixed to each of fin plates, a rectangular fin plate assembly is constituted of the fin plate, the fin plate and the fin plate of the plurality of respective radiation fin parts as the plurality of radiation fin parts are seen from the direction in which the heat pipes extend, the plurality of heat pipes include a first heat pipe group and a second heat pipe group, the first heat pipe group is positioned at the center in the longitudinal direction of the fin plate assembly, the second heat pipe group is positioned on both sides of the first heat pipe group in the longitudinal direction of the fin plate assembly, and the fin plate thermally connected to the first heat pipe group includes expanding parts.

Provided are rectangular plate-like fins 2 layered at intervals; and flat tubes 3 which are perpendicularly extended through the layered plate-like fins 2 and are provided on multiple levels along a longitudinal direction of the plate-like fins 2. The plate-like fins 2 are provided with at least one heat transfer promoting section 6 that is positioned in a region between adjacently-positioned flat tubes 3 and in which ridge sections 4 and valley sections 5 having ridgelines extending in the longitudinal direction of the plate-like fins 2 are arranged to alternate. En the heat transfer promoting section 6, at least one slit 7 allowing communication between a front and a back of the plate-like fin 2 is formed on a downwind side of the ridge sections 4.

A pin for a heat exchanger. The pin includes: a monolithic top section; a monolithic bottom section; and a middle section comprising a plurality of spaced apart sub-pins extending between the top section and the bottom section, wherein the plurality of sub-pins define one or more windows for allowing fluid flow through the middle section. Also disclosed is a layer of a heat exchanger including the pin, as well as a heat exchanger including the layer, and a method of making a layer for a heat exchanger.