A vapor chamber structure including a main vapor chamber, at least one heat dissipation structure, and a plurality of metal blocks is provided. The main vapor chamber includes an upper plate and a lower plate. The main vapor chamber further includes a first cavity formed between the upper plate and the lower plate. The heat dissipation structure is located on an outer surface of the upper plate and fluidly connected to the first cavity of the main vapor chamber. The metal blocks are disposed in the first cavity.

A heat exchanger to which a fan supplies air includes a plurality of flat tubes extending in a first direction, a corrugated fin connected to the flat tubes and extending in a second direction intersecting the first direction, and a plurality of plate fins connected to at least one of a windward end and a leeward end of the corrugated fin and extending in a third direction intersecting the second direction. This configuration achieves improvement in heat exchange performance.

A heat dissipation structure is provided for an electronic device. The heat dissipation structure includes a substrate and cooling fins connected to the substrate. The substrate includes a thermally conductive material. A first surface of the substrate has a plurality of contact regions. The plurality of contact regions of the first surface contact at least one device to be cooled.

A heat dissipation structure includes primarily plural cooling fins. A flow space for air flow is defined between every two cooling fins, and at least a through-hole which is connected with the flow space is defined on each cooling fin. Therefore, the air speed can be increased, so that heat will not be accumulated easily and can be removed out rapidly, thereby improving the heat removal efficiency of the heat dissipation structure. In addition, as each cooling fin is provided with plural through-holes, the weight of entire finished product can be decreased indirectly.

A heat dissipation device includes a heat conducting plate and a heat sink. The heat conducting plate has a first surface and a second surface opposite to each other. The heat sink is coupled to the first surface of the heat conducting plate. The heat sink includes a first peak portion, a second peak portion, a valley portion and a first curved surface. The first peak portion and the second peak portion are adjacent to each other. The valley portion is located between the first peak portion and the second peak portion. The first curved surface is coupled between the first peak portion and the valley portion. An extension line perpendicular to a corresponding tangent line of the first curved surface passes between the first peak portion and the second peak portion.

A heat exchanger including a plurality of parallel fins, and at least one tube passing through the parallel fins, wherein the tube carries a fluid that exchanges heat with air passing through the heat exchanger. The parallel fins each include a plurality of air deflecting members formed therein. Each air deflecting member is bent substantially orthogonally relative to a planar surface of each fin, and each air deflecting member is configured to direct the air passing through the heat exchanger to increase turbulence of the air, and to impinge the air against adjacent parallel fins, and to balance air flow across the heat exchanger and decrease maldistribution of the air flow through the heat exchanger.

An air fin for a heat exchanger has air channels defined by corrugations, the corrugations having generally planar flanks joined by alternating crests and troughs. Perforations extend through portions of at least some of the flanks and are aligned within two spaced apart planes. A rectangular aperture extends through at least two consecutive ones of the corrugations, and is bounded by the two planes. A method of making the air fin includes forming perforations into a continuous strip of metal sheet at regular intervals, corrugating the strip to form crests and troughs between the perforations, and punching out a portion of the strip at regular intervals. The punching out includes shearing webs between the perforations, and results in the formation of the rectangular aperture.

A heat dissipation device has a frame assembly, a gravity loop thermosyphon, and a dissipating fin assembly. The gravity loop thermosyphon has a heat exchanger, a condenser, two bendable tubes, and working fluid. One end of each bendable tube communicates with the heat exchanger and another end of each bendable tube communicates with the condenser and thus the working fluid may circulate therein. After the bendable tubes are bent, the condenser can be moved to an appropriate location or tilted to an appropriate angle according to the environment, and then the location and the angle are fixed via the frame assembly so the gravity loop thermosyphon can adapt for different dissipation assemblies.

A heat radiator includes a plate-shaped base portion that extends in a first direction along the flowing direction of a refrigerant and in a second direction perpendicular or substantially perpendicular to the first direction and has a thickness in a third direction and a fin protruding from the base portion toward one side in the third direction. The fin includes a flat plate-shaped sidewall that extends in the first direction and the third direction with the second direction being a thickness direction. The sidewall includes a protrusion protruding in the second direction. A protrusion amount of the protrusion in the second direction is equal to or less than half of an interval between the sidewalls of the fin adjacent in the second direction. The protrusion includes an opposing surface opposing the flowing direction of the refrigerant. The opposing surface has a rectangular or substantially rectangular shape extending from the sidewall.

A heat transfer fin includes a fin body and a plurality of through-holes formed through the fin body and spaced apart from each other in a first direction. When a flow direction of combustion gas that is to flow along a surface of the fin body is referred to as a second direction, the fin body includes a distal surrounding part that surrounds a first distal area located at the farthest upstream side of each of the through-holes. The shortest distance between an inner and an outer boundary of the distal surrounding part that is obtained in an area of the distal surrounding part located at the farthest upstream side is smaller than the shortest distance between the inner and the outer boundary that is obtained in an area of the distal surrounding part located at the farthest downstream side.