The invention relates to a heat exchanger for transferring heat between two fluids with different temperature, said heat exchanger comprises a first heat exchange element (10, 11), said first heat exchange element (10, 11) having at least one core (20, 21) extending longitudinally through the heat exchange element, said at least one core (20, 21) defining a core cavity, said cavity being configured with an inlet port 22a and an outlet port 22b to receive a first fluid flowing there through, said heat exchange element (10, 11) having ribs (30) extending continuously substantially in parallel with the at least one core (20, 21) along the whole length of said core (20, 21), said ribs (30) extending radially outwardly from the core (20, 21) and being exposed to contact with a second fluid, flowing along said ribs (30). The invention being distinctive in that each said rib (30, 31) is divided into at least two radially extending fins (33, 34, 35, 36) at a radial distance from the core (20, 21), each said fin (33, 34, 35, 36) extends to a proximity of an outer casing surrounding said first heat exchanger element (10, 11) or a proximity of fins (33,34, 35, 36) of an additional heat exchanger element (10, 11), said additional heat exchanger element (10, 11) being arranged adjacent to said first heat exchanger element (10, 11), said inlet port (22a) and said outlet port (22b) being coupled to said core (20, 21) at the same end of the core (20a, 21a)

The invention relates to a heat exchanger for transferring heat between two fluids with different temperature, said heat exchanger comprises a first heat exchange element (10, 11), said first heat exchange element (10, 11) having at least one core (20, 21) extending longitudinally through the heat exchange element, said at least one core (20, 21) defining a core cavity, said cavity being configured with an inlet port 22a and an outlet port 22b to receive a first fluid flowing there through, said heat exchange element (10, 11) having ribs (30) extending continuously substantially in parallel with the at least one core (20, 21) along the whole length of said core (20, 21), said ribs (30) extending radially outwardly from the core (20, 21) and being exposed to contact with a second fluid, flowing along said ribs (30). The invention being distinctive in that each said rib (30, 31) is divided into at least two radially extending fins (33, 34, 35, 36) at a radial distance from the core (20, 21), each said fin (33, 34, 35, 36) extends to a proximity of an outer casing surrounding said first heat exchanger element (10, 11) or a proximity of fins (33,34, 35, 36) of an additional heat exchanger element (10, 11), said additional heat exchanger element (10, 11) being arranged adjacent to said first heat exchanger element (10, 11), said inlet port (22a) and said outlet port (22b) being coupled to said core (20, 21) at the same end of the core (20a, 21a)

An extruded wing tube section (10) according to the invention consists of a formed tube portion (12) comprising at least one first wing section (20) integrally formed thereon in a first radial plane of the tube portion (12). The first wing section (20) has a plurality of first radial cut-outs such that a plurality of first wings (22) is provided in the first wing portion (20). Each of the first wings (20) is rotated about a radial axis of rotation such that each of the first wings (22) is rotated out of the first radial plane by a first angle 0°<α.sub.1<π° A first continuous transition portion is provided between the tube region (12) and each of the first wings (22), which transition portion has a twisted portion in the portion of the axis of rotation, and at least one expansion portion adjacent thereto.

An extruded wing tube section (10) according to the invention consists of a formed tube portion (12) comprising at least one first wing section (20) integrally formed thereon in a first radial plane of the tube portion (12). The first wing section (20) has a plurality of first radial cut-outs such that a plurality of first wings (22) is provided in the first wing portion (20). Each of the first wings (20) is rotated about a radial axis of rotation such that each of the first wings (22) is rotated out of the first radial plane by a first angle 0°<α.sub.1<π° A first continuous transition portion is provided between the tube region (12) and each of the first wings (22), which transition portion has a twisted portion in the portion of the axis of rotation, and at least one expansion portion adjacent thereto.

In accordance with the principals of the present invention, a cold tube is adapted to securely surround the beverage can, the cold tube utilizing high heat capacity/thermal mass to wick heat from the beverage in the beverage can. Contained within the cold tube, a plurality of fins are provided thus acting as a heatsink. The presence of the fins act as a heatsink by increasing convective, conductive, and radiative heat dissipation if used in the absence of the cold tube and conductive heat dissipation if used with the cold tube.

An electronic device connected to external heat dissipation device and including chassis, heat source, and heat dissipation assembly. Heat dissipation assembly includes evaporator, tubing, and liquid-cooling plate. Evaporator is in thermal contact with heat source. Tubing includes evaporation portion and condensation portion. Evaporation portion is in fluid communication with condensation portion and in thermal contact with evaporator. Liquid-cooling plate is disposed on chassis and spaced apart from heat source. Liquid-cooling plate includes liquid-cooling accommodation space and is configured to be in fluid communication with external heat dissipation device. Condensation portion is located in liquid-cooling accommodation space. Condensation portion includes first tube part, second tube part and connecting tube parts. Two opposite ends of each connecting tube part are respectively in fluid communication with first and second tube parts. Connecting tube parts are connected in parallel. First and second tube parts are in fluid communication with evaporation portion.

A heat dissipating device includes a thermosyphon, a first liquid cooling tube and a first heat dissipating fin set. The thermosyphon has an evaporation portion and a condensation portion. The first liquid cooling tube is sleeved on the condensation portion. The first heat dissipating fin set is sleeved on the first liquid cooling tube.

A heat dissipating device includes a thermosyphon, a first liquid cooling tube and a first heat dissipating fin set. The thermosyphon has an evaporation portion and a condensation portion. The first liquid cooling tube is sleeved on the condensation portion. The first heat dissipating fin set is sleeved on the first liquid cooling tube.

A heat exchanger in which an end portion of a heat exchange element is appropriately joined to an insertion hole of a header. The heat exchanger includes a heat exchange element extending in a first direction and a header to which the heat exchange element is connected. The heat exchange element includes at least one heat transfer tube extending in the first direction and a fin provided on part of an edge portion of the at least one heat transfer tube in a second direction crossing orthogonally with the first direction. An end portion in the first direction of the heat exchange element includes an insertion part being inserted into an interior of the header, an abutment part abutting the header in a part other than the insertion part, and a spaced-apart part being spaced apart from the header in a part other than the insertion part.

A heat exchanger in which an end portion of a heat exchange element is appropriately joined to an insertion hole of a header. The heat exchanger includes a heat exchange element extending in a first direction and a header to which the heat exchange element is connected. The heat exchange element includes at least one heat transfer tube extending in the first direction and a fin provided on part of an edge portion of the at least one heat transfer tube in a second direction crossing orthogonally with the first direction. An end portion in the first direction of the heat exchange element includes an insertion part being inserted into an interior of the header, an abutment part abutting the header in a part other than the insertion part, and a spaced-apart part being spaced apart from the header in a part other than the insertion part.