A thermal module structure includes an aluminum base having an upper and a lower surface, at least one L-shaped copper heat pipe, a first aluminum fin assembly, a second aluminum fin assembly, and at least one copper embedding layer. The copper heat pipe includes a heat absorption section fitted on the aluminum base, and a heat dissipation section connected to the second aluminum fin assembly. The copper embedding layers are provided on the aluminum base at areas corresponding to the first aluminum fin assembly and the heat absorption section of the copper heat pipe, and on a bottom surface of the first aluminum fin assembly that is to be connected to the aluminum base. Thus, the first aluminum fin assembly and the copper heat pipe can be directly welded to the aluminum base via the copper embedding layers without the need of electroless nickel plating.

A heat sink assembly with heat pipe includes at least one aluminum fin assembly and at least one copper heat pipe, which are made of dissimilar metal materials. The aluminum fin assembly includes at least one area to be connected to other members of the heat sink assembly, such as a groove. A copper embedding layer is provided on a groove inner surface of the groove for connecting the aluminum fin assembly to the copper heat pipe. By providing the copper embedding layer, the connection between the aluminum fin assembly and the copper heat pipe made of dissimilar metal materials is improved, and the problems of eutectic grains formed on the surface of the aluminum fin assembly and environmental pollution caused by electroless nickel plating are eliminated.

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.

A heat exchanger includes a plurality of plate fins. At least one plate fin has a plurality of holes arranged in one or more rows and a contoured region formed adjacent one of the plurality of holes having a sinusoidal corrugation. The contoured region includes a plurality of elongate adjustable lance elements. The plurality of elongate adjustable lance elements are lowered relative to a central plane arranged at a midpoint of an amplitude of the sinusoidal corrugation.

Disclosed is a solid state hydrogen storage device, capable of providing a weight reduction of a hydrogen storage system while inhibiting heat conduction performance from being degraded, and also of increasing hydrogen storage capacity. The present disclosure provides a heat conduction fin including multiple tube passing holes through which the heat exchange tube passes and linear-shaped connecting portions connecting the tube passing holes to each other, and a solid state hydrogen storage device having the same.

A fin, comprising: multiple fin subunits arranged in multiple rows, the fin subunits in two adjacent rows being arranged in an offset fashion. Each of the fin subunits comprises: a first direction center line and a second direction center line perpendicular to the first direction center line; a hole located at a central part of the fin subunit; four fenestrated zones, with two adjacent fenestrated zones in the four fenestrated zones being arranged as mirror images of each other, centered at the first or second direction center line therebetween; a flat zone comprising a hole periphery flat zone, the hole periphery flat zone being disposed between the hole and each fenestrated zone; each fenestrated zone comprises first, second, third and fourth boundaries, wherein the first boundary is located at that side of each fenestrated zone which faces the hole, the second boundary is located at that side of each fenestrated zone which faces away from the hole, and the third and fourth boundaries extend in a direction parallel to the first direction center line; the first boundary forms a demarcation line between the hole periphery flat zone and each fenestrated zone, and at least a portion of the first boundary is an elliptical arc or a circular arc that is not concentric with the circle center of the hole.

A heat exchanger includes: a heat exchanging part that includes flat tubes aligned vertically when the heat exchanger is installed; a first flow divider that includes a first pipe through which a refrigerant enters or exits from the first flow divider, second pipes that provide refrigerant flow paths between the heat exchanging part and the first pipe, and a main body that internally has a first space; and second flow dividers that each internally include one of second spaces that provide refrigerant flow paths between the heat exchanging part and the first flow divider. The first space communicates with a first end of the first pipe and a first end of each of the second pipes and causes the refrigerant to flow from the first pipe into the second pipes or from the second pipes into the first pipe.

A dehumidifier is provided. The dehumidifier may include a case having an air intake opening and an air discharge opening, an evaporator arranged inside the case and having evaporating fins coupled to evaporating tubes, a condenser arranged inside the case spaced apart from the evaporator, a fan that flows air in a direction from the evaporator to the condenser, and a heat pipe assembly positioned in front of and behind the evaporator in the air flow direction spaced apart from the evaporator. The heat pipe assembly may include heat pipes and heat-conducting fins each having a heat pipe coupling hole formed therein to be coupled to the respective heat pipe. Heat pipes may include heat-absorbing pipe portions positioned in front of the evaporator, heat-dissipating pipe portions positioned between the evaporator and the condenser, and connecting pipe portions that connect the heat-absorbing pipe portion to the heat-dissipating pipe portion, respectively.

A heat exchanger includes a plurality of plate-shaped fins disposed at intervals, and a plurality of heat transfer tubes disposed to be inserted into through holes of the fins in a direction perpendicular to the fins. In each of the fins, a starting hole is formed between adjacent through holes, and the starting hole serves as a start point of bending of the fins and has a vertex portion at a bending portion of each fin which is close to an edge thereof. In each of the fins, a cut is made to connect the other edge of the fin and a side of the starting hole which is located opposite to the vertex portion of the starting hole. The above each fin is bent at the vertex portion of the starting hole, by opening the cut from the starting hole.

A heat exchanger can include a cooling air conduit having at least one baffle, as well as a hot air conduit having at least two passes through the cooling air conduit. The heat exchanger can further include at least one perforation extending into the least one baffle. The perforation can have a passage connecting an inlet to an outlet.