CN220476192U

CN220476192U - Television set top box with heat radiation shielding function

Info

Publication number: CN220476192U
Application number: CN202321916945.9U
Authority: CN
Inventors: 姜云燕; 姜绍俊; 朱朋; 卢锦仁; 覃允炎
Original assignee: Shenzhen Akovida Technology Co ltd
Current assignee: Shenzhen Akovida Technology Co ltd
Priority date: 2023-07-20
Filing date: 2023-07-20
Publication date: 2024-02-09
Anticipated expiration: 2033-07-20

Abstract

The utility model relates to the technical field of television set top boxes, in particular to a television set top box with a heat radiation shield, which comprises a shell, wherein a circuit board is fixedly connected inside the shell, a chip is fixedly installed on the circuit board, a shielding cover is covered on the chip, a heat radiation hole is formed in the side surface of the shielding cover, a plurality of heat conducting columns are arranged on the shielding cover, heat radiating fins I are abutted to the heat conducting columns, guide rods are arranged on the heat conducting columns, the heat radiating fins I are arranged on the guide rods in a sliding mode, heat radiating fins II are also arranged on the guide rods in a sliding mode, the heat radiating fins II are arranged at one end of the heat radiating fins I and are connected with the heat radiating fins.

Description

Television set top box with heat radiation shielding function

Technical Field

The utility model relates to the technical field of television set top boxes, in particular to a television set top box with a heat radiation shield.

Background

The existing television set top box often generates a large amount of heat in the use process, the heat is not timely processed, the chip in the set top box is often damaged by heating, and the service life of the set top box is seriously reduced.

In the prior art, the application number is as follows: 201922042720.5 is disclosed by the name: the utility model provides a network television STB with heat radiation structure, wherein including stack installation in proper order on upper cover's conducting strip, shield cover, printed circuit board and balancing weight, through set up the heat conduction groove on the conducting strip, the heat dissipation hole on the shield cover is worn to locate by the heat conduction groove to through heat conduction silica gel pad and chip butt, heat on the chip that generates heat with printed circuit board loops through the heat conduction silica gel pad.

However, in the prior art, the application number is as follows: 201922042720.5, when the chip temperature is high, the heat dissipation effect of only one heat conducting fin and one shielding cover is poor, and when the heat conducting fin is overheated, the heat dissipation process of the internal chip is slowed down, so the utility model provides a television set top box with heat dissipation shielding.

Disclosure of Invention

The utility model aims to provide a television set top box with a heat radiation shield, which is used for solving the problems in the prior art.

The aim of the utility model can be achieved by the following technical scheme: the television set top box comprises a shell, a circuit board is fixedly connected inside the shell, a chip is fixedly installed on the circuit board, a shielding cover is covered on the chip, a heat dissipation hole is formed in the side face of the shielding cover, and a plurality of heat conduction columns are arranged on the shielding cover.

The heat conducting column is provided with a first heat radiating fin in a butt mode, the heat conducting column is provided with a guide rod, the first heat radiating fin is arranged on the guide rod in a sliding mode, a second heat radiating fin is further arranged on the guide rod in a sliding mode, the second heat radiating fin is arranged at one end of the first heat radiating fin, and the second heat radiating fin is connected with the first heat radiating fin.

Further, a first motor is installed on the shell, a rotary table is installed on an output shaft of the first motor, a rotary block is eccentrically arranged on the rotary table in a rotary mode, a first connecting rod is further connected to the rotary block in a rotary mode, and one end, far away from the rotary block, of the first connecting rod is connected to the first radiating fin in a rotary mode to drive the second radiating fin to slide along the guide rod.

Further, a second motor is slidably mounted on the shell, a first fan is mounted on an output shaft of the second motor, and the first fan is arranged on one side of the shielding cover and used for rotating the blowing and accelerating the heat dissipation of the first radiating fin.

Further, still slidable mounting has the rotary rod on the casing, and the rotary rod is rotatable, the rotary rod sets up the one end that the fan was kept away from to the shield cover, coaxial mounting has the fan two on the rotary rod, is provided with the belt between rotary rod and the motor two to drive the fan two and rotate to blow and accelerate fin two heat sinks.

Further, a fixed block and a sliding rod capable of sliding are further arranged on the shell, a spring is arranged between the sliding rod and the fixed block, the sliding rod is connected with a rotating rod and a motor II, a shifting rod is further connected to an output shaft of the motor I, and the shifting rod is matched with the sliding rod.

Further, the heat conducting columns are made of copper materials so as to promote heat conducting process.

The utility model has the beneficial effects that:

1. according to the utility model, the motor I is arranged, when the motor I rotates, the rotating disc connected with the output shaft is driven to rotate, the rotating block eccentrically arranged on the rotating disc rotates around the circle center of the rotating disc, and the radiating fin II connected with the connecting rod I in rotating connection with the rotating block is driven to slide on the guide rod, so that the alternation of the radiating fin I and the radiating fin II is realized, and the heat dissipation of a CPU chip is promoted;

2. the utility model also provides a first fan and a second fan connected with the first fan through a belt, one rotation blower of the first fan promotes the heat dissipation of the first radiating fin sliding below the first fan, and when the second radiating fin slides to the bottom of the second fan, the second fan blows and dissipates the heat of the second radiating fin under the drive of the second motor and the belt.

Drawings

The utility model is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall internal structure of the present utility model;

FIG. 2 is a schematic diagram of a television set-top box according to the present utility model;

FIG. 3 is a schematic diagram of a portion of a television set-top box according to the present utility model;

fig. 4 is a schematic diagram of the overall structure of the television set-top box of the present utility model.

The reference numerals are as follows:

1. a housing; 2. a circuit board; 3. a shield; 4. a heat conducting column; 5. a first radiating fin; 6. a guide rod; 7. a second radiating fin; 8. a first motor; 9. a turntable; 10. a rotating block; 11. a first connecting rod; 12. a second motor; 13. a first fan; 14. a rotating rod; 15. a second fan; 16. a belt; 17. a slide bar; 18. a fixed block; 19. a spring; 20. a deflector rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

Referring to fig. 1-3, a tv set top box with heat dissipation shielding includes a casing 1, a circuit board 2 is fixedly connected inside the casing 1, a chip is fixedly mounted on the circuit board 2, a shielding cover 3 is covered on the chip, a heat dissipation hole is opened on the side surface of the shielding cover 3, a plurality of heat conduction columns 4 are arranged on the shielding cover 3, and heat conduction silicone grease is further arranged between the heat conduction columns 4 and the chip, so that heat on the chip can be totally led out to the heat conduction columns 4.

The butt has fin one 5 on the heat conduction post 4, be provided with guide bar 6 on the heat conduction post 4, fin one 5 slides and sets up on guide bar 6, still slide on the guide bar 6 and be provided with fin two 7, fin two 7 sets up the one end at fin one 5, and fin two 7 are connected with fin one 5, the blotter is all installed at the both ends of guide bar 6, avoid fin one 5 and fin two 7 roll-off guide bar 6, and can cushion the slip of fin one 5 and fin two 7, avoid its damage.

The shell 1 is provided with the first motor 8, the output shaft of the first motor 8 is provided with the rotary table 9, the rotary table 9 eccentrically rotates to be provided with the rotary block 10, the rotary block 10 is rotationally connected with the first connecting rod 11, one end of the first connecting rod 11, far away from the rotary block 10, is rotationally connected to the first radiating fin 5 to drive the second radiating fin 7 to slide along the guide rod 6, so that the switching between the first radiating fin 5 and the second radiating fin 7 can be realized, and the heat dissipation is faster.

The shell 1 is further provided with a motor II 12 in a sliding mode, an output shaft of the motor II 12 is provided with a fan I13, the fan I13 is arranged on one side of the shielding cover 3 and used for rotating the blowing and accelerating cooling fin I5 to dissipate heat, the shell 1 is further provided with a rotating rod 14 in a sliding mode, the rotating rod 14 can rotate, the rotating rod 14 is arranged at one end, far away from the fan I13, of the shielding cover 3, the rotating rod 14 is coaxially provided with a fan II 15, and a belt 16 is arranged between the rotating rod 14 and the motor II 12 and used for driving the fan II 15 to rotate and blow and accelerate the cooling fin II 7 to dissipate heat.

When the motor I8 drives the connected cooling fin I5 to be positioned on the heat conduction column 4, at the moment, the cooling fin II 7 is just positioned at the bottom of the fan II 15, the fan II 15 rotates to blow the cooling fin II 7 to promote the cooling of the cooling fin II 7, after the cooling fin II 7 is cooled, the motor I8 drives the cooling fin I5 to the bottom of the fan I13, the fan I13 blows the cooling fin I5 to cool, at the moment, the cooling fin II 7 is positioned on the heat conduction column 4, and the heat on the chip is led out to the cooling fin II 7.

The shell 1 is also provided with a fixed block 18 and a slidable sliding rod 17, a spring 19 is arranged between the sliding rod 17 and the fixed block 18, the sliding rod 17 is connected with a rotating rod 14 and a second motor 12, two mounting plates are arranged at two ends of the sliding rod 17, the rotating rod 14 is rotatably arranged on one mounting plate, the second motor 12 is arranged on the other mounting plate, the two mounting plates are in sliding connection with the shell 1, an output shaft of the first motor 8 is also connected with a deflector rod 20, and the deflector rod 20 is matched with the sliding rod 17.

When the shift lever 20 shifts the sliding lever 17 to slide relative to the housing 1, the second motor 12 and the rotating lever 14 connected to the sliding lever 17 also slide on the housing 1, so that the first fan 13 and the second fan 15 connected to the second motor 12 and the rotating lever 14 move, and the first cooling fin 5 and the second cooling fin 7 are more uniformly blown to dissipate heat.

The heat conducting column 4 is made of copper material to promote the heat conducting process, and the copper material is convenient for leading out the heat emitted from the chip to the first radiating fin 5 and the second radiating fin 7 as soon as possible.

Working principle: when the set top box works, a CPU chip on a circuit board 2 of the set top box can generate more heat, a shielding cover 3 is sleeved on the CPU chip to shield the CPU chip and block most of radiation, meanwhile, a radiating hole is formed in the side face of the shielding cover 3 to radiate the chip, meanwhile, a motor I8 is started, the motor I8 rotates to drive a rotating disc arranged on an output shaft of the motor I to rotate, a rotating block 10 eccentrically arranged on the rotating disc rotates, a connecting rod I11 rotationally arranged on the rotating block 10 drives a radiating fin I5 connected with the other end to be positioned on a heat conducting column 4, the heat transmitted by the chip on the heat conducting column 4 is absorbed on the radiating fin I5, then the motor I8 drives the radiating fin I5 to leave the heat conducting column 4 and move to the bottom of a fan I13, and the motor II 12 rotates to drive the fan I13 to blow the radiating fin I5, at the moment, replacement of the radiating fin I5 and the radiating fin II 7 can be realized, when the fin I5 is positioned on the heat conducting column 4, the fan II 7 is blown to the radiating fin I7, and the radiating fin II is promoted to the radiating fin I7.

When the first motor 8 drives the first cooling fin 5 to slide along the guide rod 6, the deflector rod 20 of the output shaft of the first motor 8 also rotates to stir the sliding rod 17 arranged on the shell 1 in a sliding way, the sliding rod 17 is connected with the rotating rod 14 and the second motor 12, the rotating rod 14 and the second motor 12 slide in the shell 1, and one end of the sliding rod 17 is fixedly connected with the spring 19, so that the rotating rod 14 and the second motor 12 slide reciprocally to blow the first cooling fin 5 and the second cooling fin 7 at the bottom of the shell more uniformly.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The television set top box with the heat radiation shielding is characterized by comprising a shell (1), wherein a circuit board (2) is fixedly connected inside the shell (1), a chip is fixedly installed on the circuit board (2), a shielding cover (3) is covered on the chip, a heat radiation hole is formed in the side face of the shielding cover (3), and a plurality of heat conduction columns (4) are arranged on the shielding cover (3);

the heat conduction column (4) is provided with a first radiating fin (5) in a butt mode, the heat conduction column (4) is provided with a guide rod (6), the first radiating fin (5) is arranged on the guide rod (6) in a sliding mode, a second radiating fin (7) is further arranged on the guide rod (6) in a sliding mode, the second radiating fin (7) is arranged at one end of the first radiating fin (5), and the second radiating fin (7) is connected with the first radiating fin (5).

2. The television set top box with the heat radiation shielding according to claim 1, wherein a first motor (8) is installed on the shell (1), a rotary table (9) is installed on an output shaft of the first motor (8), a rotary block (10) is eccentrically arranged on the rotary table (9) in a rotating mode, a first connecting rod (11) is further rotatably connected to the rotary block (10), and one end, far away from the rotary block (10), of the first connecting rod (11) is rotatably connected to the first radiating fin (5) so as to drive the second radiating fin (7) to slide along the guide rod (6).

3. The television set top box with the heat radiation shielding according to claim 1, wherein the shell (1) is further provided with a second motor (12) in a sliding manner, an output shaft of the second motor (12) is provided with a first fan (13), and the first fan (13) is arranged on one side of the shielding cover (3) and used for rotating the blowing and accelerating the heat radiation of the first radiating fin (5).

4. A tv set-top box with heat dissipation shielding as claimed in claim 3, wherein the casing (1) is further slidably provided with a rotating rod (14), the rotating rod (14) is rotatable, the rotating rod (14) is disposed at one end of the shielding cover (3) far away from the fan one (13), the rotating rod (14) is coaxially provided with a fan two (15), and a belt (16) is disposed between the rotating rod (14) and the motor two (12) to drive the fan two (15) to rotate to blow and accelerate the heat dissipation of the heat dissipation fin two (7).

5. The television set top box with the heat radiation shielding according to claim 1, wherein a fixed block (18) and a slidable sliding rod (17) are further installed on the shell (1), a spring (19) is installed between the sliding rod (17) and the fixed block (18), the sliding rod (17) is connected with a rotating rod (14) and a motor II (12), a deflector rod (20) is further connected to an output shaft of the motor I (8), and the deflector rod (20) is matched with the sliding rod (17).

6. A television set-top box with heat dissipation shield as claimed in claim 1, wherein the heat conducting posts (4) are copper to promote the heat conducting process.