Heat radiator perforation anchor fixing device

Abstract

The invention discloses a heat radiator perforation anchor fixing device, which comprises a heat radiator, a PCB board and a heat radiator locking mechanism. The heat radiator comprises a plurality ofheat radiating fins, an upper surface and a lower bottom surface, the heat radiating fins are all fixed to the upper surface, and at least one U-shaped groove and a plurality of transverse grooves are formed between adjacent heat radiating fins. The PCB board comprises a board upper surface, board slot holes and a board lower bottom surface, and each board slot hole comprises a board slot hole short side and a board slot hole long side. The locking mechanism comprises claw anchors, anchor brackets and a Z-shaped spring, each anchor bracket comprises an anchor bracket hole, an anchor bracket opening, an anchor bracket V groove and an anchor bracket top surface, the Z-shaped spring comprises a spring middle portion, spring shoulder portions and spring hooks, the claw anchors penetrate the board slot holes upwards from the board lower bottom surface, the spring hooks fasten tops of the claw anchors, and the Z-shaped spring fix the heat radiator to a heat source. The fixing device has advantages that difficulty in 'mounting leg' assembly is greatly lowered, and reliability in assembly, low part machining requirement and low cost are realized.

Description

technical field [0001] The invention belongs to the field of radiators, in particular to a radiator perforation anchor fixing device. Background technique [0002] With the rapid development of the electronics industry, the calorific value and heat density of electronic components (heat sources) such as BGA, FPGA, and CPU are getting higher and higher. The assembly between the radiator and the heat source must ensure reliable "thermal interface contact" to ensure heat dissipation. The passage is smooth. There are various installation and fixing methods for various radiators. Among them, the Z-shaped spring has streamlined features, and the aesthetic perception is similar to the posture of "squatting and waving hands" of long-distance runners when they start. When the same PCB is equipped with multiple heat sources and allows multiple types of installation and fixing, the Z-shaped spring installation method is conducive to balance. The streamlined aesthetic of PCB assembly....

AI Technical Summary

Problems solved by technology

However, this design has high requirements on the processing precision of the parts, and the perfect fit of the dimensional chain tolerance can be 100% reliable, because the two feet are divided into two successive bending and cutting (the buckle bending process, usually belongs to "rough machining"), two The length of the feet may be different, and the "short and wide holes" passing through the plastic film are easy to restrain each other (one of them is too short, and it is easy to slip out of the "short and wide holes" of the plastic film; one of them is too long, and the long and short feet are divided into two successively. Through the "short and wide hole", the cost of man-hours is high)

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