Radiating structure and molding method thereof

Abstract

The invention relates to a radiating structure and a molding method thereof. An extruded piece is manufactured through extruding and molding, and the extruded piece is provided with a plurality of bending parts which are extended along the same direction and outwards protruded, and in the processes of extruding and molding, fins are further formed on the bending parts. The fins and the extruded piece are cut by a cutter so as to form cutting channels, wherein the cutter is firstly used for cutting the fins to form notches and then the bending parts to form cutting through holes, the notches and the cutting through holes form the cutting channels, and the cutting through holes are used for allowing air to flow through both sides of the extruded piece through the cutting through holes. By cutting the bending parts by the cutter, a large quantity of the cutting through holes can be quickly formed on the extruded piece without being influenced by the fins so as to improve air cooling and radiating effects.

Description

technical field [0001] The invention relates to a heat dissipation structure, in particular to an extruded heat dissipation structure for enhancing air cooling and heat dissipation. Background technique [0002] refer to Figure 1A and Figure 1B Shown is the air-cooling heat dissipation structure 1 in the known technology. The air cooling structure 1 mainly includes a substrate 2 and fins 3 formed on the substrate 2 . The substrate 2 is used to contact a heat source, or used as a shell to cover the heating element. The inner surface of the substrate 2 absorbs the heat from the heat source 4 or the heating element 5 through contact heat conduction or convective heat transfer, while the outer surface exchanges heat with air to dissipate heat by convective heat transfer. The fins 3 are arranged parallel to the outer surface of the base plate 2 to increase the overall heat exchange area and enhance convective heat transfer efficiency. [0003] The traditional manufacturing ...

AI Technical Summary

Problems solved by technology

[0005] However, extrusion molding can only produce a continuous structure with a single cross-sectional shape. If the travel direction of the member passing through the die mouth of the mold is the long axis direction, the extrusion molding cannot form a penetrating structure perpendicular to the long axis direction. through-hole structure

If the ventilation hole is to be made through additional processing, since the heat dissipation structure 1 has protruding fins, the protruding fins 3 will cause the punching device to be unable to punch holes on the substrate 2

Tapping the substrate 2 with a drill bit can only complete one vent hole per process, especially when the heat dissipation structure 1 must be densely covered with vent holes, tapping holes with a drill bit will consume a lot of processing time, which does not meet the requirements of productivity

Therefore, the closed casing with an extruded heat dissipation structure can only introduce cooling air into the casing and discharge hot air through the vent holes on the front and rear panels. It is difficult to further strengthen the circulation of cooling air to improve the air cooling effect

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