PCB fixing structure of set-top box

Abstract

The invention relates to the technical field of digital television, and provides a PCB fixing structure of a set-top box. The PCB includes a main board and a CM board, and a plurality of electrical connection terminals are respectively arranged on the main board and the CM board. Cover one edge of the back cover, the CM board is horizontally fixed on the bottom cover through the hook, the main board is vertically fixed on the CM board, and the electrical connection terminals on the main board and the CM board respectively protrude from the back cover. In the present invention, the main board and the CM board adopt a vertical connection mode, which is smaller than the existing superimposed and tiled types, occupies less space, and has a small contact area, which is conducive to heat dissipation; the CM board is fixed on the bottom cover by hooks, which is convenient for disassembly and Each electrical connection terminal protrudes from the back cover, which is not only convenient for signal input and output, but also places a certain limit on the main board and CM board when the electrical connection terminals protrude, so that the main board and the CM board will not be opposite to the back cover. Displacement occurs to enhance the stability of the installation.

Description

technical field [0001] The invention relates to the technical field of digital television, and more specifically relates to a PCB fixing structure of a set-top box. Background technique [0002] At present, there are two main ways to fix the PCB in the set-top box in the cavity: one is fixed after laying flat; the other is fixed after stacking. The former fixing method takes up a lot of space, so the final formed product is relatively large and expensive, and cannot meet the current requirements for miniaturization, lightness, and thinning of products; the latter method is compact in structure and takes up less space, but the fixed cost It is too high, and it is not conducive to heat dissipation, which is not conducive to the normal operation of various components in the set-top box, and affects the service life of the set-top box. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and...

AI Technical Summary

Problems solved by technology

The former fixing method takes up a lot of space, so the final formed product is relatively large and expensive, and cannot meet the current requirements for miniaturization, lightness, and thinning of products; the latter method is compact in structure and takes up less space, but the fixed cost It is too high, and it is not conducive to heat dissipation, which is not conducive to the normal operation of various components in the set-top box, and affects the service life of the set-top box

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