PCB fixing structure of set top box

Abstract

The invention relates to the technical field of digital televisions and provides a PCB fixing structure of a set top box. A PCB comprises a main board and a CM board. The main board and the CM board are respectively provided with a plurality of electrical connecting terminals. The PCB fixing structure comprises a bottom cover and a rear cover perpendicularly fixed to one edge of the bottom cover. The CM board is horizontally fixed to the bottom cover through a clamping hook. The main board is perpendicularly fixed to the CM board. The electrical connecting terminals arranged on the main board and the electrical connecting terminals arranged on the CM board extend out from the rear cover. According to the PCB fixing structure of the set top box, the main board and the CM board are connected in a perpendicular mode, compared with an existing superimposing mode and a flatly paving mode, the perpendicular mode enables the occupied space to be small and the contact area to be small and is beneficial to heat dissipation. The CM board is fixed to the bottom cover through the clamping hook, so that disassembly and assembly are convenient. Each electrical connecting terminal extends out from the rear cover, so that input and output of signals are facilitated, when each electrical connecting terminal extends out, the main board and the CM board are limited to a certain extent, so that the main board and the CM board do not move relative to the rear cover, and the installation stability is enhanced.

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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