CN220292091U

CN220292091U - STB with good heat dissipation

Info

Publication number: CN220292091U
Application number: CN202320553039.0U
Authority: CN
Inventors: 杨涛; 陈海林; 徐洪
Original assignee: Shenzhen Daxinglang Electronic Technology Co ltd
Current assignee: Shenzhen Daxinglang Electronic Technology Co ltd
Priority date: 2023-03-09
Filing date: 2023-03-09
Publication date: 2024-01-02
Anticipated expiration: 2033-03-09

Abstract

The utility model provides a set top box with good heat dissipation, which comprises a shell, a top cover and a main board, wherein the top cover is buckled on the shell, the main board is fixed in the shell through screws, one side of the shell is provided with an interface component electrically connected with the main board, the top cover is provided with a loudspeaker component and a key component electrically connected with the main board, a heat dissipation sheet is arranged between the shell and the main board, one side of the heat dissipation sheet is attached to the main board, the shell is provided with a mounting hole for exposing the heat dissipation sheet, and the other side of the heat dissipation sheet passes through the shell and then is exposed outside the shell. The radiating fin solves the radiating problem of the main board and the problems of dust accumulation and space occupation caused by the radiating holes and the fans in the prior art; the heat dissipation effect is better through the heat transfer of direct contact, and the heat dissipation device can be applied to a main board with higher integration level, so that the set top box with the same function can be designed to be smaller in size.

Description

STB with good heat dissipation

Technical Field

The utility model relates to the field of set top boxes, in particular to a set top box with good heat dissipation.

Background

A set-top box is an electronic device that can be connected to a television set and provide various functions such as viewing digital television, streaming network video, playing multimedia files, games and applications, etc. It is a device for transmitting television signals to a television set by means of digital signals, which receive and transmit signals in different ways, such as by means of cable, satellite, internet, etc.

With the development of integrated circuit technology and chips, the chips and the main board can be highly integrated, so that the set top box has smaller volume and more functions. However, the high integration of the motherboard and the chip presents heat dissipation problems. In the prior art, the set top box is cooled, and a cooling hole and a fan are adopted to cool the set top box, so that dust accumulation can be caused by the cooling hole, and the fan occupies more space of the set top box shell. Therefore, a new heat dissipation solution is needed.

Disclosure of Invention

The utility model aims to provide a set top box with good heat dissipation, and solves the problems of dust accumulation and space occupation caused by heat dissipation of the set top box in the prior art.

In order to achieve the above purpose, the following technical scheme is adopted:

the utility model provides a STB with good heat dissipation, includes casing, top cap and mainboard, the top cap lock is in on the casing, the mainboard passes through the screw fixation in the casing, one side of casing be provided with mainboard electric connection's interface assembly, be provided with on the top cap with mainboard electric connection's speaker subassembly and button subassembly, wherein, the casing with be provided with the fin between the mainboard, the one side of fin with the mainboard laminating, the casing is provided with the confession the mounting hole that the fin exposes, the another side of fin passes behind the casing expose in the casing is outside.

Further, the cross section of the radiating fin is convex, and the convex part of the radiating fin passes through the mounting hole. The cooling fin is firmly installed and cannot fall off from the shell.

Further, a mounting seat limiting the edge of the radiating fin is formed in the shell. The mounting seat forms limit on the radiating fin to prevent the radiating fin from loosening.

Further, a limit groove is formed in one side of the shell, and a limit part which can be inserted into the limit groove and is matched with the limit groove is formed in one side of the top cover. The shell and the top cover are convenient to detach and install.

Further, the interface component comprises a coaxial interface, a DIV interface, an AV interface and a power interface.

By adopting the scheme, the utility model has the beneficial effects that:

the radiating fin solves the radiating problem of the main board and the problems of dust accumulation and space occupation caused by radiating holes and fans in the prior art; the heat dissipation effect is better through the heat transfer of direct contact, and the heat dissipation device can be applied to a main board with higher integration level, so that the set top box with the same function can be designed to be smaller in size.

Drawings

Fig. 1 is a schematic structural diagram of a set top box according to an embodiment of the present utility model;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is an exploded view of the alternate angle of FIG. 1;

fig. 4 is a schematic structural view of the housing and the top cover according to the embodiment of the present utility model.

Wherein, the attached drawings mark and illustrate:

1. a housing; 11. a mounting hole; 12. a mounting base; 13. a limit groove; 2. a top cover; 21. a limit part; 3. a main board; 31. an interface assembly; 32. a speaker assembly; 33. a key assembly; 4. a heat sink.

Detailed Description

Exemplary embodiments that embody features and advantages of the present utility model will be described in detail in the following description. It will be understood that the utility model is capable of various modifications in various embodiments, all without departing from the scope of the utility model, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the utility model.

As shown in fig. 1-4, a set top box with good heat dissipation comprises a shell 1, a top cover 2 and a main board 3, wherein the top cover 2 is buckled on the shell 1, the main board 3 is fixed in the shell 1 through screws, one side of the shell 1 is provided with an interface component 31 electrically connected with the main board 3, the top cover 2 is provided with a speaker component 32 and a key component 33 electrically connected with the main board 3, a radiating fin 4 is arranged between the shell 1 and the main board 3, one side of the radiating fin 4 is attached to the main board 3, the shell 1 is provided with a mounting hole 11 for exposing the radiating fin 4, and the other side of the radiating fin 4 passes through the shell 1 and then is exposed outside the shell 1.

The heat sink 4 has a convex cross section, and the convex portion thereof passes through the mounting hole 11. So that the heat sink 4 is firmly installed and does not fall off from the housing 1.

A mounting seat 12 limiting the edge of the radiating fin 4 is formed in the shell. The mounting seat 12 forms a limit for the cooling fin 4 to prevent the cooling fin 4 from loosening.

One side of the shell 1 is provided with a limit groove 13, and one side of the top cover 2 is provided with a limit part 21 which can be inserted into the limit groove 13 and is matched with the limit groove 13. So that the shell 1 and the top cover 2 are convenient to detach and install.

The interface assembly 31 includes a coaxial interface, a DIV interface, an AV interface, and a power interface.

Working principle: when the main board 3 works, generated heat is transferred to the radiating fins 4 contacted with the main board, and one surface of each radiating fin 4 is exposed out of the shell 1, so that the radiating fins 4 can be directly contacted with air, and the heat is taken away by the air, so that the heat dissipation of the main board 3 is completed.

The top cover 2 can be directly inserted into the limit groove 13 through the limit part 21 to complete pre-fixing, and meanwhile, screws can be inserted through the bottom to connect the shell 1 and the top cover 2, so that the top cover is further fixed.

The beneficial effects of the utility model are as follows from the above embodiments:

the radiating fin 4 solves the radiating problem of the main board 3 and the problems of dust accumulation and space occupation caused by radiating holes and fans in the prior art; the heat dissipation effect is better through the heat transfer of direct contact, and the heat dissipation device can be applied to the mainboard 3 with higher integration level, so that the set top box with the same function can be designed to be smaller in size.

While the present disclosure has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration rather than of limitation. As the present disclosure may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. The utility model provides a STB with good heat dissipation, its characterized in that, includes casing, top cap and mainboard, the top cap lock is in on the casing, the mainboard passes through the screw fixation in the casing, one side of casing be provided with mainboard electric connection's interface assembly, be provided with on the top cap with mainboard electric connection's speaker subassembly and button subassembly, wherein, the casing with be provided with the fin between the mainboard, the one side of fin with the mainboard laminating, the casing is provided with the confession the mounting hole that the fin exposes, the another side of fin passes behind the casing expose in the casing is outside, the cross-section of fin is the convexity, and its bellied part passes the mounting hole, be formed with in the casing to the spacing mount pad of border of fin.

2. The set top box with good heat dissipation according to claim 1, wherein a limit groove is formed on one side of the housing, and a limit portion which can be inserted into the limit groove and is matched with the limit groove is formed on one side of the top cover.

3. The set top box with good heat dissipation according to claim 1, wherein the interface component comprises a coaxial interface, a DIV interface, an AV interface, a power interface.