CN221615050U

CN221615050U - Set-top box

Info

Publication number: CN221615050U
Application number: CN202420127442.1U
Authority: CN
Inventors: 陈健; 陈康
Original assignee: Shenzhen Huashuda Technology Co ltd
Current assignee: Shenzhen Huashuda Technology Co ltd
Priority date: 2024-01-18
Filing date: 2024-01-18
Publication date: 2024-08-27
Anticipated expiration: 2034-01-18

Abstract

The utility model relates to the technical field of communication equipment and discloses a set top box, which comprises a box body and a circuit board, wherein a containing cavity is formed by enclosing the box body, at least one heat dissipation opening is formed in the peripheral wall of the box body, and each heat dissipation opening is communicated with the containing cavity; the box body comprises a baffle plate which is arranged corresponding to each heat dissipation opening, and each baffle plate is obliquely arranged on the inner wall of the box body; the bottom of each baffle is positioned at the lower edge of the corresponding heat radiation opening; the circuit board is accommodated in the accommodating cavity. The circuit board generates heat to heat the air in the accommodating cavity, and the air in the accommodating cavity exchanges heat with the outside air through the heat dissipation opening, so that the heat dissipation of the set top box is realized. In the technical scheme of the utility model, when dust in the outside air enters the accommodating cavity through the heat dissipation opening, part of dust can be blocked by the baffle plate and cannot enter the accommodating cavity, so that the dust amount entering the box body through the heat dissipation opening is reduced.

Description

Set-top box

Technical Field

The utility model relates to the technical field of communication equipment, in particular to a set top box.

Background

The set top box, i.e. the digital video conversion box, is a device that connects a television with an external signal source, and can convert the compressed digital signal into television content and display the television content on the television. The heat can be generated when the set top box works, and the circuit board in the set top box can be burnt out due to overheating after long-time use, so that a plurality of heat dissipation holes are often formed in the box body of the set top box to transfer the air heated by the circuit board in the box body to the outside for heat exchange so as to achieve the heat dissipation effect.

But dust in the outside air can also enter the inside of the set top box through the radiating holes, and excessive dust on the circuit board of the set top box can cause the performance of the set top box to be reduced, and even the circuit board of the set top box can be damaged in serious cases.

Disclosure of utility model

The utility model mainly aims to provide a set top box, which aims to reduce the amount of dust entering the interior of the set top box through a radiating hole.

In order to achieve the above object, the set top box according to the present utility model includes:

The box body is enclosed to form a containing cavity, at least one heat dissipation opening is formed in the peripheral wall of the box body, and each heat dissipation opening is communicated with the containing cavity; the box body comprises a baffle plate which is arranged corresponding to each heat dissipation opening, and each baffle plate is obliquely arranged on the inner wall of the box body; the bottom of each baffle is positioned at the lower edge of the corresponding heat radiation opening; and

And the circuit board is accommodated in the accommodating cavity.

Optionally, the top of each baffle is higher than the upper edge of the corresponding heat dissipation port and is connected with the inner wall of the box body.

Optionally, the set top box further includes a heat dissipation assembly, where the heat dissipation assembly includes at least one heat dissipation fan, and each heat dissipation fan is disposed on an inner wall of the box body.

Optionally, each heat dissipation port is formed on one side wall of the box body, and each heat dissipation fan is disposed on the other side wall of the box body opposite to each heat dissipation port.

Optionally, the box body comprises a supporting plate, and the supporting plate is arranged on the inner side wall of the box body and is abutted with the circuit board; the supporting plate is used for dividing the accommodating cavity into an upper accommodating cavity and a lower accommodating cavity, and the upper accommodating cavity is communicated with the lower accommodating cavity; the circuit board is accommodated in the upper accommodating cavity, the radiating ports are all positioned on the peripheral wall of the lower accommodating cavity, and each radiating fan comprises at least one part positioned in the lower accommodating cavity.

Optionally, the box body includes two backup pads, and two backup pads are located respectively the box body is equipped with each the lateral wall of thermovent and is close to each the lateral wall of radiator fan.

Optionally, each of the heat dissipation fans includes a portion located in the upper cavity and located higher than the circuit board.

Optionally, the set top box further comprises an ash collecting box, and the ash collecting box is accommodated in the accommodating cavity and is movably connected with the bottom wall of the box body.

Optionally, the set top box further comprises an adsorption layer, and the adsorption layer is arranged in the dust collecting box.

Optionally, the heat dissipation assembly further comprises a temperature sensor, and the temperature sensor is accommodated in the accommodating cavity and is abutted to the circuit board; the temperature sensor is electrically connected with each cooling fan.

In the technical scheme of the utility model, the set top box comprises a box body and a circuit board, wherein the box body is enclosed to form a containing cavity, at least one heat dissipation opening is formed in the peripheral wall of the box body, and each heat dissipation opening is communicated with the containing cavity; the box body comprises a baffle plate which is arranged corresponding to each heat dissipation opening, and each baffle plate is obliquely arranged on the inner wall of the box body; the bottom of each baffle is positioned at the lower edge of the corresponding heat radiation opening; the circuit board is accommodated in the accommodating cavity. The circuit board generates heat to heat the air in the accommodating cavity, and the air in the accommodating cavity exchanges heat with the outside air through the heat dissipation opening, so that the heat dissipation of the set top box is realized. In the technical scheme of the utility model, when dust in the outside air enters the accommodating cavity through the heat dissipation opening, part of dust can be blocked by the baffle plate and cannot enter the accommodating cavity, so that the dust amount entering the box body through the heat dissipation opening is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

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

Fig. 2 is a cross-sectional view of the set top box of fig. 1 taken along A-A;

Fig. 3 is a side view of the set top box.

Reference numerals illustrate:

Reference numerals	Name of the name	Reference numerals	Name of the name
				1000	Set-top box	14	Supporting plate
1	Box body	2	Circuit board
				11	Accommodating chamber	31	Heat radiation fan
111	Upper cavity	32	Temperature sensor
				112	Lower cavity	4	Ash collecting box
12	Heat dissipation port	5	Adsorption layer
				13	Baffle plate

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Referring to fig. 1, 2 and 3, in order to solve the problem that dust is easy to enter the set top box through the heat dissipation holes, the present utility model proposes a set top box 1000, comprising:

The box body 1 and the circuit board 2, wherein the box body 1 is enclosed to form a containing cavity 11, at least one heat dissipation opening 12 is formed on the peripheral wall of the box body 1, and each heat dissipation opening 12 is communicated with the containing cavity 11; the box body 1 comprises a baffle 13 which is arranged corresponding to each heat dissipation port 12, and each baffle 13 is obliquely arranged on the inner wall of the box body 1; the bottom of each baffle 13 is positioned at the lower edge of the corresponding heat radiation port 12; the circuit board 2 is accommodated in the accommodation chamber 11. The circuit board 2 generates heat to heat the air in the accommodating cavity 11, and the air in the accommodating cavity 11 exchanges heat with the outside air through the heat dissipation port 12, so that the heat dissipation of the set top box 1000 is realized. In one embodiment, the number of the heat dissipation ports 12 is six, and correspondingly, the number of the baffles 13 is also six.

In the technical scheme of the utility model, when the heat dissipation port 12 enters the accommodating cavity 11, part of dust in the outside air can be blocked by the baffle 13 and cannot enter the accommodating cavity 11, so that the dust amount entering the box body 1 through the heat dissipation port 12 is reduced.

Specifically, in an embodiment, the top of each baffle 13 may be higher than the upper edge of the heat dissipation port 12 and connected to the inner wall of the box 1. The top of baffle 13 is higher than the upper edge of thermovent 12, and the dust that gets into in holding chamber 11 through thermovent 12 in the external air can receive gravity whereabouts to baffle 13, sets up so that the vast majority dust that gets into in holding chamber 11 is blocked by baffle 13, can further reduce the dust volume that gets into the inside of STB 1000 through the louvre.

The set top box 1000 also includes a heat dissipating assembly that includes at least one heat dissipating fan 31. In an embodiment, the heat dissipation assembly includes three heat dissipation fans 31, and the three heat dissipation fans 31 are all disposed on the inner wall of the box 1. The cooling fan 31 can increase the speed of the air flowing into the outside of the accommodating cavity 11, so that the heat exchange efficiency between the air in the accommodating cavity 11 and the outside air is higher, and the cooling efficiency is improved, so that the cooling speed of the set top box 1000 is faster.

In one embodiment, six heat dissipation openings 12 are formed on one side wall of the case 1, and six heat dissipation fans 31 are disposed on the other side wall of the case 1 opposite to each heat dissipation opening 12. The heat radiation fan 31 and the heat radiation opening 12 are arranged at two ends of the accommodating cavity 11, and the air blown out by the heat radiation fan 31 can linearly spread to the heat radiation opening 12 to flow to the outside, so that the heat radiation efficiency can be further improved; meanwhile, the cooling fan 31 can blow out a small amount of dust which enters the accommodating cavity 11 without being blocked by the baffle 13 from the cooling port 12, so that the amount of dust entering the set top box 1000 through the cooling hole is further reduced.

In one embodiment, the case 1 includes a support plate 14, where the support plate 14 is disposed on an inner sidewall of the case 1 and abuts against the circuit board 2; the supporting plate 14 is used for dividing the accommodating cavity 11 into an upper accommodating cavity 111 and a lower accommodating cavity 112, and the upper accommodating cavity 111 is communicated with the lower accommodating cavity 112; the circuit board 2 is accommodated in the upper accommodating cavity 111, the six heat dissipation ports 12 are all located on the peripheral wall of the lower accommodating cavity 112, and each heat dissipation fan 31 is at least partially located in the lower accommodating cavity 112. The six heat dissipation ports 12 are located at the peripheral wall of the lower cavity 112, and the circuit board 2 is accommodated in the upper cavity 111, that is, the position of the circuit board 2 is higher than that of the six heat dissipation ports 12, so that a small amount of dust not blocked by the baffle 13 enters the lower cavity 112 and finally most of dust falls on the bottom wall of the lower cavity 112 under the action of gravity.

In one embodiment, the box 1 includes two support plates 14, and the two support plates 14 are respectively disposed on a side wall of the box 1 where each heat dissipation port 12 is disposed and a side wall near each heat dissipation fan 31. The two support plates 14 are arranged at intervals, so that a certain gap exists between the two support plates 14, and therefore one side of the circuit board 2 facing the lower containing cavity 112 can be in contact with air in the lower containing cavity 112, and therefore the air in the lower containing cavity 112 can exchange heat with the circuit board 2, and heat exchange efficiency is improved.

It can be appreciated that the three heat dissipation fans 31 may be located entirely in the lower chamber 112 or may be located partially in the upper chamber 111. Each cooling fan 31 is disposed in the upper cavity 111 and higher than the circuit board 2, and the cooling fan 31 in the upper cavity 111 can cool the circuit board 2 facing the side of the upper cavity 111, so that the cooling fans 31 can cool both sides of the circuit board 2 at the same time, thereby further improving cooling efficiency.

In an embodiment, the set top box 1000 further includes an ash collecting box 4, where the ash collecting box 4 is accommodated in the accommodating cavity 11 and is movably connected with the bottom wall of the box body 1. The diapire of box body 1 is located to album ash box 4, holds the dust in the chamber 11 and finally can fall into album ash box 4 under the effect of gravity, and when the dust volume that album ash box 4 collected is big enough, the user can take album ash box 4 out and clear up album ash box 4 in box body 1, can put album ash box 4 back into box body 1 after the clearance is accomplished and collect the dust again, so avoid falling to hold the dust secondary on the chamber 11 diapire and lift up and be stained with circuit board 2 on, the clearance is convenient simultaneously.

The set top box 1000 further includes an adsorption layer 5, where the adsorption layer 5 may be an activated carbon layer or an electrostatic adsorption layer 5. In one embodiment, the adsorption layer 5 is an activated carbon layer, which is disposed within the dust collection box 4. The active carbon layer not only can adsorb the dust that holds in the chamber 11, also can adsorb the moisture of air, realizes dampproofing dust removal's function simultaneously, and the active carbon layer is located album of ash box 4 simultaneously and can conveniently change.

In one embodiment, the heat dissipation assembly further comprises a temperature sensor 32, and the temperature sensor 32 is accommodated in the accommodating cavity 11 and is abutted against the circuit board 2; the temperature sensor 32 is electrically connected to the three heat dissipation fans 31 through a single chip microcomputer. The temperature sensor 32 senses the temperature of the circuit board 2 and transmits signals to the singlechip; when the temperature reaches 70 ℃, the singlechip controls the cooling fan 31 to start working to dissipate heat; when the temperature is lower than 70 ℃, the singlechip controls the cooling fan 31 to stop working. The automatic heat dissipation is realized, and the energy consumption is reduced.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A set top box (1000), comprising:

The box body (1), the box body (1) encloses and forms and holds the chamber (11), the perisporium of box body (1) is formed with at least one thermovent (12), every thermovent (12) all communicates hold the chamber (11); the box body (1) comprises a baffle plate (13) which is arranged corresponding to each heat dissipation opening (12), and each baffle plate (13) is obliquely arranged on the inner wall of the box body (1); the bottom of each baffle plate (13) is positioned at the lower edge of the corresponding heat radiation opening (12); and

The circuit board (2) is accommodated in the accommodating cavity (11).

2. The set-top box (1000) according to claim 1, wherein the top of each baffle (13) is higher than the upper edge of the corresponding heat dissipation port (12) and is connected with the inner wall of the box body (1).

3. The set-top box (1000) according to claim 2, wherein the set-top box (1000) further comprises a heat dissipation assembly, the heat dissipation assembly comprising at least one heat dissipation fan (31), each heat dissipation fan (31) being arranged on an inner wall of the box body (1).

4. A set-top box (1000) according to claim 3, wherein each of the heat dissipation openings (12) is formed in one side wall of the box body (1), and each of the heat dissipation fans (31) is provided in the other side wall of the box body (1) opposite to each of the heat dissipation openings (12).

5. The set-top box (1000) according to claim 4, wherein the box body (1) comprises a support plate (14), and the support plate (14) is arranged on the inner side wall of the box body (1) and is abutted with the circuit board (2); the supporting plate (14) is used for dividing the accommodating cavity (11) into an upper accommodating cavity (111) and a lower accommodating cavity (112), and the upper accommodating cavity (111) is communicated with the lower accommodating cavity (112); the circuit board (2) is accommodated in the upper accommodating cavity (111), each heat dissipation opening (12) is positioned on the peripheral wall of the lower accommodating cavity (112), and each heat dissipation fan (31) is at least partially positioned in the lower accommodating cavity (112).

6. The set-top box (1000) according to claim 5, wherein the box body (1) comprises two support plates (14), and the two support plates (14) are respectively arranged on the side wall of each heat dissipation opening (12) and the side wall close to each heat dissipation fan (31) in the box body (1).

7. The set-top box (1000) according to claim 6, wherein each of the cooling fans (31) comprises a portion located inside the upper cavity (111) and higher than the circuit board (2).

8. The set-top box (1000) according to any of claims 1 to 7, wherein the set-top box (1000) further comprises a dust collecting box (4), the dust collecting box (4) being housed in the housing cavity (11) and being movably connected with the bottom wall of the box body (1).

9. The set-top box (1000) according to claim 8, wherein the set-top box (1000) further comprises an adsorption layer (5), the adsorption layer (5) being provided within the dust-collecting box (4).

10. The set-top box (1000) according to any one of claims 3 to 7, wherein the heat dissipation assembly further comprises a temperature sensor (32), the temperature sensor (32) being housed within the housing cavity (11) and in abutment with the circuit board (2); the temperature sensor (32) is electrically connected to each of the heat dissipation fans (31).