Heat radiator and manufacturing method thereof

Abstract

The invention provides a heat radiator and a manufacturing method thereof. The heat radiator consists of a fin group and a seat body, wherein one side face, which is connected with the seat body, of the fin group is provided with multiple rail bars; the cross sections of the rail bars are hook-shaped; one side of the seat body is provided with grooves corresponding to the rail bars, so that the seat body and the fin group can be combined by virtue of the corresponding embedding of the rail bars and the groove and then are inserted into spaces among fins of the fin group by virtue of a stamping die so as to perform stamping on the grooves and the rail bars, therefore, the grooves and the rail bars are deformed, thus the seat body and the fin group are tightly combined into a whole.

Description

technical field [0001] The present invention relates to radiators, in particular to the combination of heat dissipation fins and bases. Background technique [0002] According to general aluminum heat sinks, the fins and the base are formed separately first, and then the fins are embedded on the base, and the two need to have good thermal contact, please refer to 1A and Figure 1B , which discloses a typical combination of fins and seat body, which planed back and forth with a sharp scraper on one side of the seat body 1 to open a plurality of parallel deep grooves 11 and shallow grooves 12, the depth The grooves 11, 12 are arranged alternately, the fins 2 are respectively inserted in the deep grooves 11, and then the stamping die 3 similar to a tool is inserted between the fins 2 to stamp the shallow grooves 12, and the shallow grooves 12 are pressed The extrusion of the sharp edge of the stamping die 3 deforms outwards, and then tightly bites the fins 2 , so that the fins ...

AI Technical Summary

Problems solved by technology

[0003] However, there is a serious deficiency in the above-mentioned manufacturing method, that is, the scraper used for digging the grooves 11, 12 on the base body 1 and the stamping die 3 used for stamping the shallow groove 12 are all extremely sharp, and their blades are extremely sharp during planing and cutting. During the stamping process, it is easy to crack and chip corners, so scrapers and stamping dies need to be replaced frequently. Not only is the replacement cost very high, but the replacement process must also interrupt the production process, which is not in line with economic benefits.

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