CN110267070B

CN110267070B - Set-top box

Info

Publication number: CN110267070B
Application number: CN201910576990.6A
Authority: CN
Inventors: 谭志伟
Original assignee: Shenzhen Jiuzhou Electric Appliance Co Ltd
Current assignee: Shenzhen Jiuzhou Electric Appliance Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2021-05-11
Anticipated expiration: 2039-06-28
Also published as: CN110267070A

Abstract

The embodiment of the invention provides a set top box, and belongs to the technical field of televisions. The set-top box comprises: a first housing; the first shell is movably arranged on the second shell, the first shell and the second shell enclose an internal installation space of the set top box, when the first shell moves and rises to a first preset position relative to the second shell, the set top box is in a working state, and when the first shell moves and falls to a second preset position relative to the second shell, the set top box is in a standby state or a power-off state. The first housing can be moved up relative to the second housing, so that the first housing is opened relative to the second housing, and the internal installation space is enlarged, thereby facilitating heat dissipation.

Description

Set-top box

Technical Field

The embodiment of the invention relates to the technical field of digital televisions, in particular to a set top box.

Background

The set-top box is a digital television device and is widely applied to family life. In recent years, with the development of electronic technology, the performance and functions of set-top boxes are greatly improved, and set-top boxes with stronger performance and more functions are widely applied to various fields.

However, the power consumption of the high-performance multifunctional set-top box is very high, a large amount of heat is generated, the problem of heat dissipation becomes a big problem of the high-performance multifunctional set-top box, and if the heat dissipation is not good, the use performance and the service life of the set-top box are affected, so that the solution of the problem of space layout and the problem of heat dissipation of the set-top box becomes an important research direction.

Disclosure of Invention

The embodiment of the invention aims to provide a set top box, which can solve the technical problem of poor heat dissipation caused by too small internal space of the set top box in the prior art.

The embodiment of the invention adopts the following technical scheme:

a set-top box comprising:

a first housing;

the first shell is movably arranged on the second shell, the first shell and the second shell enclose an internal installation space of the set top box, when the first shell moves to rise to a first preset position relative to the second shell, the set top box is in a working state, and when the first shell moves to fall to a second preset position relative to the second shell, the set top box is in a standby state or a power-off state.

Optionally, the internal mounting space comprises a first mounting space; the first shell comprises a first side wall, a second side wall, a third side wall, a fourth side wall and a top plate, wherein the top plate is located on one side of the second shell, the top plate faces towards one side face of the second shell, which is convexly provided with the first side wall, the second side wall, the third side wall and the fourth side wall, the first side wall, the second side wall, the third side wall and the fourth side wall are sequentially connected end to form a first enclosing wall, and the top plate and the first enclosing wall are enclosed to form a first installation space.

Optionally, the first surrounding wall is provided with one or more through heat dissipation holes.

Optionally, the internal installation space further comprises a second installation space; the second casing includes fifth lateral wall, sixth lateral wall, seventh lateral wall, eighth lateral wall and bottom plate, the bottom plate orientation the protruding fifth lateral wall that is equipped with of a side of roof the sixth lateral wall the seventh lateral wall with the eighth lateral wall, the fifth lateral wall the sixth lateral wall the seventh lateral wall with eighth lateral wall end to end connects gradually and forms the second enclosure wall, the bottom plate with the second enclosure wall encloses to close and forms the second installation space, first enclosure wall can hold in the second installation space.

Optionally, when the first housing moves relative to the second housing and rises to the first preset position, the first surrounding wall partially overlaps the second surrounding wall, and one or more heat dissipation holes are exposed outwards; when the first housing moves relative to the second housing and descends to the second preset position, the first surrounding wall overlaps the second surrounding wall, and the first surrounding wall is accommodated in the second installation space.

Optionally, the set-top box further comprises an air supply device, and the air supply device is accommodated in the first installation space.

Optionally, the set-top box further comprises a main circuit board and a first adapter circuit board, wherein the main circuit board is electrically connected with the first adapter circuit board; the first switching circuit board is contained in the first installation space, and the main circuit board is contained in the second installation space.

Optionally, the first adapter circuit board is mounted on the top plate, and a plate surface of the first adapter circuit board faces the first surrounding wall; the main circuit board is installed in the bottom plate, just the face orientation of main circuit board the bottom plate.

Optionally, the set-top box further comprises an air supply device, the air supply device is accommodated in the first installation space, and the air supply device is electrically connected with the first switching circuit board.

Optionally, the limit position of the first housing moving upward relative to the second housing is the first preset position, and the limit position of the first housing moving downward relative to the second housing is the second preset position.

Compared with the prior art, in the set top box of the embodiment, the first shell can move upwards relative to the second shell, so that the first shell is opened relative to the second shell, the internal installation space is increased, and heat dissipation is facilitated.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

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

FIG. 2 is another state diagram of use shown in FIG. 1;

FIG. 3 is a perspective view of the first housing and bracket shown in FIG. 2;

FIG. 4 is a perspective view of the second housing shown in FIG. 2;

FIG. 5 is an exploded view of FIG. 3;

FIG. 6 is an exploded view of the carriage, blower and remote control shown in FIG. 5;

FIG. 7 is a partial enlarged view of the area B shown in FIG. 6;

fig. 8 is a schematic structural view of the first housing and the rubber plug shown in fig. 5;

FIG. 9 is an enlarged partial view of the area C shown in FIG. 8;

FIG. 10 is a schematic structural view of the second latch mechanism shown in FIG. 4;

FIG. 11 is a schematic view of the assembly of a damping mechanism provided by an embodiment of the present invention;

fig. 12 is a partially enlarged view of the area a shown in fig. 4.

Detailed Description

In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. As used in this specification, the terms "upper," "lower," "inner," "outer," "vertical," "horizontal," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and simplicity in description, and do not indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operated in a particular orientation, and are not to be considered limiting of the invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

In this specification, the term "mounting" includes fixing or limiting a certain element or device to a specific position or place by welding, screwing, clipping, adhering, etc., the element or device may be fixed or movable in a limited range in the specific position or place, and the element or device may be removed or not after being fixed or limited to the specific position or place, and is not limited in the embodiment of the present invention.

Referring to fig. 1 and 2, an embodiment of the invention provides a set top box 100, where the set top box 100 is a flat square structure. The set top box 100 includes a first casing 10 and a second casing 20, the first casing 10 and the second casing 20 are both in a cover-shaped structure, and an opening of the first casing 10 and an opening of the second casing 20 are oppositely disposed, the first casing 10 can be partially accommodated in the second casing 20, the first casing 10 and the second casing 20 together enclose an internal installation space for accommodating and installing electronic devices, wherein the first casing 10 and the second casing 20 are both used as casing parts of the set top box 100.

The first housing 10 is movably mounted to the second housing 20. When the first housing 10 moves and rises to a first preset position relative to the second housing 20, for example, the limit position of the first housing 10 moving and rising relative to the second housing 20 is the first preset position, at this time, the first housing 10 is in an open state relative to the second housing 20, and the set top box 100 is in an operating state; when the first casing 10 moves relative to the second casing 20 and descends to a second preset position, for example, the limit position of the first casing 10 moving and descending relative to the second casing 20 is the second preset position, at this time, the first casing 10 is in a closed state relative to the second casing 20, and the set top box 100 is in a standby state or a power-off state. It is understood that the operating state of the set-top box 100 means that the operating power of the set-top box 100 is normal, and the set-top box 100 provides data transmission to a display device and displays the data on the display device, for example, the display device is a digital display; the standby state of the set-top box 100 means that the working power supply of the set-top box 100 is normally connected, but the set-top box 100 does not provide data transmission for the display device; the off state of the set-top box 100 means that the operating power of the set-top box 100 is turned off and the set-top box 100 does not provide data transmission to the display device.

Referring to fig. 3 and 4, the internal installation space includes a first installation space 17 and a second installation space 27. The first casing 10 includes a first sidewall 11, a second sidewall 12, a third sidewall 13, a fourth sidewall 14, and a ceiling 15. The top plate 15 is of a substantially square plate structure, the top plate 15 is located on one side of the second housing 20, the first side wall 11, the second side wall 12, the third side wall 13 and the fourth side wall 14 are protruded from one side of the top plate 15 facing the second housing 20, wherein the first side wall 11, the second side wall 12, the third side wall 13 and the fourth side wall 14 are sequentially connected end to form a first surrounding wall 16, and the top plate 15 and the first surrounding wall 16 enclose to form the first installation space 17.

The second housing 20 includes a fifth side wall 21, a sixth side wall 22, a seventh side wall 23, an eighth side wall 24 and a bottom plate 25, the bottom plate 25 is a substantially square plate structure, the bottom plate 25 is located on one side of the first housing 10, the fifth side wall 21, the sixth side wall 22, the seventh side wall 23 and the eighth side wall 24 are convexly disposed on one side of the bottom plate 25 facing the first housing 10, wherein the fifth side wall 21, the sixth side wall 22, the seventh side wall 23 and the eighth side wall 24 are sequentially connected end to form a second surrounding wall 26, and the bottom plate 25 and the second surrounding wall 26 surround to form the second mounting space 27.

The first housing 10 and the second housing 20 are disposed opposite to each other, and the first installation space 17 and the second installation space 27 together form an internal installation space of the set-top box 100. The first surrounding wall 16 is smaller than the second surrounding wall 26, when the first housing 10 moves downward relative to the second housing 20, the first surrounding wall 16 moves downward relative to the second housing 20, the position of the first surrounding wall 16 is overlapped with the position of the second surrounding wall 26, the first surrounding wall 16 is accommodated in the second installation space 27, and the edge portion of the top plate 15 is clamped on the second surrounding wall 26. In some embodiments, when the edge portion of the top plate 15 is caught on the second surrounding wall 26, the first housing 10 is moved down to the second preset position relative to the second housing 20.

In this embodiment, the first wall 16 is formed with one or more through heat dissipation holes 161, and the heat dissipation holes 161 are strip-shaped structures. For example, the heat dissipation holes 161 are formed in the first side wall 11, the second side wall 12, the third side wall 13, and the fourth side wall 14. Optionally, when the first wall 16 includes a plurality of heat dissipation holes 161, the plurality of heat dissipation holes 161 are uniformly distributed on the first wall 16. When the first housing 10 is lifted and opened relative to the second housing 20, the position of the first wall 16 is partially staggered with the position of the second wall 26, the first wall 16 partially overlaps the second wall 26, one or more heat dissipation holes 161 are exposed outwards, and the heat dissipation holes 161 communicate the internal installation space of the set-top box 100 and the external space of the set-top box 100, so that the airflow in the set-top box 100 circulates, and heat dissipation is realized. When the set top box 100 is in an operating state, the first housing 10 is located at the first preset position relative to the second housing 20, the first housing 10 is opened relative to the second housing 20, and the heat dissipation hole 161 on the first surrounding wall 16 is exposed outwards, so that heat dissipation is performed in the operating state of the set top box 100; when the set top box 100 is in the standby state or the power-off state, the first casing 10 is located at the second preset position relative to the second casing 20, the first casing 10 is closed relative to the second casing 20, and the first enclosure wall 16 is accommodated in the second installation space 27 and is not exposed outwards, so that the heat dissipation hole 161 is closed in the process of the standby state or the power-off state of the set top box 100, and thus, dust is prevented from entering the interior of the set top box 100 through the heat dissipation hole 161.

Referring to fig. 5, 6 and 7, the set-top box 100 further includes a bracket 30, and the bracket 30 is movably mounted at the bottom of the first mounting space 17, i.e., the bracket 30 is movably mounted on the top plate 15. The bracket 30 is a frame structure in a straight line type, and the bracket 30 includes a first panel 31, a second panel 32 and two support walls 33. The support walls 33 are linear structures, two support walls 33 are juxtaposed in the transverse direction and are oppositely disposed, and the two support walls 33 constitute a main body support structure of the bracket 30. The first panel 31 is located at one side of the two supporting walls 33, and the first panel 31 is respectively connected to the two supporting walls 33; the second panel 32 is disposed opposite to the first panel 31, the second panel 32 is located at the other side of the two supporting walls 33, and the second panel 32 is connected to the two supporting walls 33 respectively. The first panel 31, the second panel 32 and the two support walls 33 jointly enclose a receiving cavity 35, wherein the receiving cavity 35 extends along the longitudinal direction of the support walls 33.

The bracket 30 further includes a partition 34, the partition 34 is located in the accommodating cavity 35, the partition 34 is respectively connected to the first panel 31, the second panel 32 and the two supporting walls 33, and the partition 34 divides the accommodating cavity 35 into a first accommodating cavity 351 and a second accommodating cavity 352 in the extending direction of the accommodating cavity 35.

In this embodiment, the set-top box 100 further includes a remote controller 41, and the remote controller 41 is configured to control an operating state of the set-top box 100, such as playing a program, adjusting a display, or turning on/off the set-top box. The remote controller 41 may be accommodated in the first accommodating cavity 351, for example, the first accommodating cavity 351 includes an opening 3511, the opening 3511 is a free end of the first accommodating cavity 351 in an extending direction, the remote controller 41 enters from the opening 3511 and is accommodated in the first accommodating cavity 351, and the extending direction of the first accommodating cavity 351 and the extending direction of the accommodating cavity 35 are the same. The first panel 31 and the second panel 32 corresponding to the first receiving cavity 351 are both provided with through holes 431, when the remote controller 41 is received in the first receiving cavity 351, the position of the remote controller 41 corresponds to the positions of the through holes 431, and the through holes 431 enable the remote controller 41 to be abutted against devices outside the bracket 30.

The first panel 31 and the second panel 32 corresponding to the position of the second accommodating cavity 352 are both provided with through ventilation openings 432, that is, the ventilation openings 432 on the first panel 31, the second accommodating cavity 352 and the ventilation openings 432 on the second panel 32 are communicated with each other. The set-top box 100 further includes an air supply device 42, the air supply device 42 is accommodated in the second accommodating cavity 352, and the air supply device 42 is fixedly installed on an inner side wall of the second accommodating cavity 352, for example, the air supply device 42 is fixedly installed on the first panel 31 by a connection manner of screw thread fixing. For example, the air supply device 42 is an electrically driven heat dissipation fan, and the air supply device 42 is used for driving and accelerating the air flow velocity in the second accommodating cavity 352, so as to accelerate the air flow velocity of the air inside the set top box 100, thereby achieving the function of accelerating heat dissipation and cooling.

The set-top box 100 further comprises two guide rails 44, and the two guide rails 44 are arranged at the bottom of the first installation space 17, that is, the two guide rails 44 are arranged on the top plate 15. The two guide rails 44 are arranged oppositely, one end faces of the two guide rails 44, which are opposite to each other, are respectively provided with a convex strip 441 in a protruding manner, the two convex strips 441 are arranged oppositely, wherein the convex strips 441 extend along the longitudinal direction of the guide rails 44. The bracket 30 is located between two of the guide rails 44, one of the guide rails 44 is adjacent to one of the support walls 33, and the other of the guide rails 44 is adjacent to the other of the support walls 33. The outer side wall of the supporting wall 33 is provided with a guide groove 331, the guide groove 331 extends along the longitudinal direction of the supporting wall 33, the two guide rails 44 respectively correspond to the two supporting walls 33 one by one, and the protruding strip 441 is in sliding fit with the guide groove 331, so that the bracket 30 is movably mounted on the top plate 15. In the present embodiment, the moving direction of the carriage 30 is along the longitudinal direction of the support wall 33.

In this embodiment, the first side wall 11 is opened with a through insertion opening 111, the insertion opening 111 is aligned with the moving direction of the bracket 30, and the bracket 30 can pass through the insertion opening 111 and enter the first installation space 17 or be pulled out of the first installation space 17. For example, one end of each of the two guide rails 44 is correspondingly located on the opposite sides of the insertion opening 111, and the bracket 30 located between the two guide rails 44 can pass through the insertion opening 111. Further, the set top box 100 further includes a thrust block 45, the thrust block 45 is disposed at the bottom of the first installation space 17, that is, the thrust block 45 is disposed on the top plate 15, and the thrust block 45 is located in the moving direction of the bracket 30, when the bracket 30 moves to one side of the thrust block 45 and abuts against the thrust block 45, under the positioning action of the thrust block 45, the bracket 30 is limited to move to one side of the thrust block 45.

In this embodiment, the internal installation space further includes a receiving location 171, and the thrust block 45, the first sidewall 11 and the two guide rails 44 together enclose the receiving location 171. The tray 30 is inserted into the insertion opening 111 from one end of the second receiving cavity 352, moves toward the thrust block 45 under the guiding action of the two guide rails 44, and when the tray 30 abuts against the thrust block 45, the tray 30 is located at the receiving position 171. Similarly, the tray 30 can be pulled out of the insertion opening 111 from one end of the first receiving cavity 351, and the tray 30 is completely separated from the receiving position 171, that is, the tray 30 can be pulled out of the inside of the set top box 100.

Further, the bracket 30 further comprises a first locking mechanism 50, and the first locking mechanism 50 is used for locking and fixing the bracket 30 at the accommodating position 171. For example, the first locking mechanism 50 is located in the longitudinal direction of the support wall 33, and the first locking mechanism 50 is provided at the end of the support wall 33. In this embodiment, the first locking mechanism 50 is disposed on an end of the support wall 33 adjacent to the opening 3511. The first locking mechanism 50 includes a biasing portion 51 and a catch plate 52. The pressing portion 51 has a bent structure with a substantially "S" shape, and has elasticity, and when the pressing portion 51 is pressed, the pressing portion 51 can be reset under the elasticity of the pressing portion 51. The clamping plate 52 has a sheet structure and is substantially square. One end of the pressing part 51 is connected with the supporting wall 33, and the end of the pressing part 51 far away from the supporting wall 33 is connected with the clamping plate 52. Optionally, the support wall 33, the biasing portion 51 and the catch plate 52 are integrally formed, one end of the support wall 33 extends to form the biasing portion 51, and the biasing portion 51 extends to form the catch plate 52. The clamping plate 52 is provided with a first clamping protrusion 521 and a second clamping protrusion 522 in a protruding manner on one side surface far away from the opening 3511, a clamping opening 523 is formed between the first clamping protrusion 521 and the second clamping protrusion 522, and the clamping opening 523 is used for clamping and locking the bracket 30.

In this embodiment, the first locking mechanisms 50 are respectively disposed on the two support walls 33 located at the opening 3511, the two first locking mechanisms 50 are disposed oppositely, and the two bayonets 523 are disposed oppositely.

Referring to fig. 8 and 9, the first locking mechanism 50 further includes a latch 53, and the latch 53 is disposed on two opposite sides of the insertion opening 111. Alternatively, the latch 53 is located at one end of the guide rail 44 close to the insertion opening 111, and the latch 53 is fixedly connected to the guide rail 44 and the top plate 15, respectively. When the bracket 30 moves from one end of the second receiving cavity 352 into the insertion opening 111 and the bracket 30 is located at the receiving position 171, the two locking blocks 53 and the two locking holes 523 are in one-to-one snap fit, so that the bracket 30 is locked and fixed, wherein the locking holes 523 are fastened to one side of the locking blocks 53 under the elastic pressing force of the pressing part 51. It is understood that when the user presses the catch plate 52 toward the open opening 3511, the catch 523 is separated from the catch 53, the first locking mechanism 50 is in the unlocking release state, and the user can pull the bracket 30 out of the accommodating position 171.

Of course, in some embodiments, the bracket 30 may omit one of the first locking mechanisms 50. The bracket 30 can be locked and fixed in the receiving position 171 by one of the first locking mechanisms 50.

It will be appreciated that the bracket 30 may be integrally formed by an injection molding process.

Further, the set top box 100 further comprises a rubber plug 46, the fixture block 53 is provided with a mounting hole 531, a mounting post 461 is convexly disposed on one side surface of the rubber plug 46, the mounting post 461 is movably mounted in the mounting hole 531, and the rubber plug 46 can cover the insertion hole 111. Optionally, the mounting post 461 is made of an elastic material. Furthermore, a pressing block 462 is further protruded from one side surface of the rubber plug 46 on which the mounting column 461 is protruded. An avoiding opening 47 is formed between the clamping plate 52 and the first panel 31 and the second panel 32 respectively, the avoiding opening 47 can enable the clamping plate 52 to move towards one side of the opening 3511, and the clamping opening 523 is separated from the clamping block 53. When the bracket 30 is inserted into the insertion opening 111 from one end of the second accommodating cavity 352 in a moving manner, the bracket 30 abuts against the thrust block 45 and the bracket 30 is accommodated in the accommodating position 171, the bayonet 523 is in corresponding snap fit with the latch 53 under the elastic extrusion effect of the elastic pressing portion 51, so that the bracket 30 is locked and fixed on the accommodating position 171, at this time, the rubber plug 46 can move towards one position of the opening 3511 and plug the opening 3511, wherein the pressing block 462 is in corresponding press fit with the avoiding opening 47, and the rubber plug 46 is fastened and fixed.

In this embodiment, the rubber plug 46 is correspondingly and convexly provided with two pressing blocks 462, and the two pressing blocks 462 are respectively in one-to-one correspondence with the avoidance ports 47, so as to tightly clamp and fix the rubber plug 46. When the user pulls out the rubber plug 46, the user presses the clamping plate 52 toward the open end 3511, the bayonet 523 is separated from the clamping block 53, the bracket 30 is unlocked and released, and the user can pull the bracket 30 out of the accommodating position 171.

With continued reference to fig. 3 and 4, the set-top box 100 further includes a main circuit board 63, wherein the main circuit board 63 is used for connecting an external power source and an external data signal. The main circuit board 63 is mounted at the bottom of the second mounting space 27, that is, the main circuit board 63 is fixedly mounted on the bottom plate 25, and the surface of the main circuit board 63 faces the bottom plate 25, that is, the surface of the main circuit board 63 faces the top plate 15. Alternatively, the main circuit board 63 is located at the middle position of the bottom plate 25, and the high power devices on the main circuit board 63 correspond to the air blowing device 42, wherein the bracket 30 is located at the accommodating position 171. The set-top box 100 further comprises a first adapter circuit board 61 and a second adapter circuit board 62, wherein the first adapter circuit board 61 and the second adapter circuit board 62 are electrically connected to the main circuit board 63 respectively. The first adapter circuit board 61 is electrically connected to the air supply device 42, so that the main circuit board 63 provides power support for the air supply device 42. The second adapter circuit board 62 is provided with a detection circuit and a charging circuit, the charging circuit can be electrically connected to the charging interface of the remote controller 41 located in the first receiving cavity 351, and when the detection circuit detects that the bracket 30 is located at the receiving position 171 and the remote controller 41 is located in the first receiving cavity 351, the charging circuit can charge the remote controller 41. In this embodiment, when the cradle 30 is located at the receiving position 171 and the remote controller 41 is located in the first receiving cavity 351, a first control signal is triggered, and the set top box 100 responds according to the first control signal, for example, the response includes charging the remote controller 41, displaying a reminder, and the like.

In this embodiment, the first adapting circuit board 61 is mounted on the thrust block 45, optionally, the board surface of the first adapting circuit board 61 faces the first surrounding wall 16, that is, the board surface of the first adapting circuit board 61 faces the heat dissipation hole 161 on the first surrounding wall 16, so as to facilitate heat dissipation. It is understood that, when the bracket 30 is located at the receiving position 171, the second receiving cavity 352 is located at one end of the bracket 30 close to the thrust block 45, the air blowing device 42 is received in the second receiving cavity 352, and the first receiving cavity 351 is located at the other end of the bracket 30 far from the thrust block 45, wherein the air blowing device 42 is electrically connected to the first relay circuit board 61 through a wire, and the air blowing device 42 is still electrically connected to the first relay circuit board 61 during the process of moving the bracket 30 out of the receiving position 171 or into the receiving position 171.

Similarly, the second adapter circuit board 62 is mounted on the bottom of the first mounting space 17, that is, the second adapter circuit board 62 is mounted on the top plate 15 and located on one side of the air blowing device 42, wherein the bracket 30 is located at the accommodating position 171. Optionally, the board surface of the second adapter circuit board 62 faces the first enclosure wall 16, that is, the board surface of the second adapter circuit board 62 faces the heat dissipation hole 161 on the first enclosure wall 16, so as to facilitate heat dissipation.

In this embodiment, the surface of the main circuit board 63 faces the top plate 15, the air supply device 42 is located above the main circuit board 63, the first adapter circuit board 61 and the second adapter circuit board 62 are located on the side of the air supply device 42, and the surfaces of the first adapter circuit board 61 and the second adapter circuit board 62 face the heat dissipation holes 161 on the first enclosure wall 16. When the set-top box 100 is in an operating state, the first casing 10 is opened relative to the second casing 20, the heat dissipation holes 161 on the first wall 16 are exposed outwards, and the air flow in the set-top box 100 is accelerated under the driving of the air supply device 42, so that the heat dissipation effect is good.

The set-top box 100 further comprises a trigger mechanism 64, and the trigger mechanism 64 is accommodated in the internal installation space of the set-top box 100. When the bracket 30 is located at the receiving position 171, the remote controller 41 located in the first receiving cavity 351 activates the trigger mechanism 64 to send a first control signal. In this embodiment, the triggering mechanism 64 includes a first triggering piece 641 and a second triggering piece 642, and the first triggering piece 641 and the second triggering piece 642 are disposed on the main circuit board 63, and it can be understood that the first triggering piece 641 and the second triggering piece 642 are both made of conductive metal material, such as copper or copper alloy. One end of the first trigger piece 641 is electrically connected to the main circuit board 63, and the other end of the first trigger piece 641 is suspended in the air; one end portion of the second trigger piece 642 is electrically connected to the main circuit board 63, the other end portion of the second trigger piece 642 is suspended in the air, the first trigger piece 641 of the portion suspended in the air partially overlaps the second trigger piece 642 of the portion suspended in the air, and the first trigger piece 641 is located on the second trigger piece 642. When the remote controller 41 is accommodated in the first accommodating cavity 351 and the tray 30 enters the accommodating position 171 from the insertion opening 111, the remote controller 41 collides the first trigger piece 641 and the second trigger piece 642 to trigger the first control signal, which is used for marking that the remote controller 41 is located in the first accommodating cavity 351 and the tray 30 is located in the accommodating position 171. When the holder 30 is pulled out of the receiving position 171 and the remote controller 41 is pulled out of the first mounting space 17, the first trigger piece 641 and the second trigger piece 642 are separated to trigger a second control signal for marking that the remote controller 41 has been pulled out of the first mounting space 17.

In this embodiment, when the remote controller 41 is accommodated in the first accommodating cavity 351 and the bracket 30 is located at the accommodating position 171, the detection circuit detects the first control signal, so that the charging circuit charges the remote controller 41. In other embodiments, the second adapter circuit board 62 is also electrically connected to a reminder circuit, for example, the reminder circuit includes an LED light. When the detection circuit detects the first control signal, the LED lamp of the reminding circuit emits light for display, and when the detection circuit detects the second control signal, the LED lamp of the reminding circuit does not emit light for display.

The first housing 10 is movably mounted to the second housing 20. The set-top box 100 further includes one or more guide mechanisms received in the internal installation space, the guide mechanisms moving the first casing 10 linearly with respect to the second casing 20. The guide mechanism comprises a cylinder 71 and a guide post 72, the cylinder 71 is provided with a guide hole 711, and the first shell 10 and the second shell 20 move up and down under the guide action between the guide post 72 and the guide hole 711. For example, the cylinder 71 is disposed at the bottom of the first installation space 17, that is, the cylinder 71 is disposed at the side of the top plate 15 facing the bottom plate 25, and the guide hole 711 is disposed facing the bottom plate 25. The guide post 72 is disposed at the bottom of the second installation space 27, that is, the guide post 72 is disposed at the side of the bottom plate 25 facing the top plate 15, and the guide post 72 is disposed facing the top plate 15. One or more of the guide posts 72 and one or more of the guide holes 711 are in one-to-one corresponding sliding fit, and a guide direction of the sliding fit between the guide posts 72 and the guide holes 711 is a moving direction of the first housing 10 relative to the second housing 20. Optionally, the set-top box 100 includes four guiding mechanisms, wherein four guiding posts 72 are respectively located at four corners of the bottom of the second installation space 27, and correspondingly, four cylinders 71 are respectively located at four corners of the bottom of the first installation space 17.

Further, the set-top box 100 further comprises a push-away elastic member. The push-away elastic member is arranged between the first casing 10 and the second casing 20, and the first casing 10 can move up relative to the second casing 20 under the action of the push-away elastic member. For example, the push-away elastic member is a push-away spring 73, the push-away spring 73 is sleeved outside the cylinder 71, the push-away spring 73 is located between the top plate 15 and the bottom plate 25, when the first housing 10 moves and descends to the second preset position relative to the second housing 20, the push-away spring 73 is deformed under pressure, and the push-away spring 73 provides an elastic force to move and ascend the first housing 10 to the first preset position relative to the second housing 20.

In this embodiment, the set-top box 100 further comprises one or more second locking mechanisms 80, and when the first housing 10 is moved relative to the second housing 20 and lowered to the second predetermined position, the second locking mechanisms 80 lock and fix the first housing 10 and the second housing 20. It is understood that the second locking mechanism 80 can also unlock and release the first housing 10 and the second housing 20, so that the first housing 10 is moved open relative to the second housing 20.

For example, referring to fig. 3, 4 and 10, the second locking mechanism 80 includes a lock cylinder 81, a mounting seat 82, a base block 83 and two locking blocks 84. One end of the lock cylinder 81 is fixedly installed on the top plate 15, the other end of the lock cylinder 81 extends toward one side of the bottom plate 25, and a protrusion 811 is convexly arranged on the side surface of the end of the lock cylinder 81 facing one side of the bottom plate 25.

The mounting seat 82 is fixedly mounted on the bottom plate 25, a locking cavity 821 is formed in one end face, facing the top plate 15, of the mounting seat 82, and the locking cavity 821 corresponds to the locking column 81 in position. The base block 83 is accommodated in the locking cavity 821, the bottom of the base block 83 faces the bottom of the locking cavity 821, the top of the base block 83 faces the top plate 15, the two ends of the top of the base block 83 are respectively and elastically connected with the locking blocks 84, the two locking blocks 84 are elastically scattered in a V shape, an opening formed by the two locking blocks 84 faces one side of the top plate 15 and corresponds to the locking column 81 in a positive phase manner, namely, the top of the base block 83 corresponds to the locking column 81 in a positive phase manner.

The base block 83 is arranged in the locking cavity 821 in a lifting and moving manner, when the base block 83 moves upwards towards one side of the top plate 15 and the two locking blocks 84 are positioned outside the opening of the locking cavity 821, the two locking blocks 84 are elastically dispersed in a V shape, and when the base block 83 moves downwards towards the bottom of the locking cavity 821, the two locking blocks 84 are contracted and clamped under the limiting effect of the side wall of the locking cavity 821.

When the first housing 10 descends and moves to the second preset position relative to the second housing 20, the end of the locking column 81 abuts against the top of the base block 83, and the end of the locking column 81 is located between the two locking blocks 84, and during the descending and moving process, the locking column 81 pushes the base block 83 to move towards one side of the bottom of the locking cavity 821, so that the two locking blocks 84 contract and clamp, and the two locking blocks 84 clamp the end of the locking column 81 together. In this embodiment, the locking block 84 is hook-shaped, and the two locking blocks 84 are disposed opposite to each other, and the two locking blocks 84 hook the protrusion 811 on the end of the locking column 81, so as to enhance the locking performance.

In this embodiment, the second locking mechanism 80 further includes an ejector 85, and the ejector 85 is used to push the base block 83 to move toward the side of the top plate 15, even though the ejector 85 is used to move the base block 83 away from the side of the bottom of the locking cavity 821. For example, the ejection member 85 is an electromagnetic driving member, such as a solenoid valve or the like. When the electromagnetic valve is powered on, the movable iron core of the electromagnetic valve pushes the base block 83 to rise, so that the two locking blocks 84 are located outside the opening of the locking cavity 821, the two locking blocks 84 are elastically scattered in a V shape, and the locking column 81 is unlocked and released.

Optionally, the set-top box 100 includes a plurality of the second locking mechanisms 80, and the plurality of the second locking mechanisms are used for locking and fixing the first casing 10 relative to the second casing 20, for example, the set-top box 100 includes two of the second locking mechanisms 80, and both of the two locking mechanisms are accommodated in the internal installation space of the set-top box 100.

Further, referring to fig. 3, 4, 9 and 10, the set-top box 100 further includes one or more damping mechanisms 90, wherein the damping mechanisms 90 are used for moving the first casing 10 with respect to the second casing 20 at a constant speed and slowly. For example, the damping mechanism 90 includes a rack 91, a rotating gear 92 and a fixing seat 93, the rack 91 is a linear structure, one end of the rack 91 is fixedly installed on the top plate 15, and the other end of the rack 91 extends toward one side of the bottom plate 25. The fixed seat 93 is fixedly installed on the bottom plate 25, the rotating gear 92 is rotatably installed on the fixed seat 93, wherein the rotating gear 92 is engaged with the rack 91, when the first housing 10 moves relative to the second housing 20, the rotating gear 92 is engaged with the rack 91, the rotating gear 92 equivalently moves on the rack 91, and the engagement between the rotating gear 92 and the rack 91 is used for providing a damping force, so that the first housing 10 moves uniformly and slowly relative to the second housing 20.

In this embodiment, the fixing seat 93 is provided with one or more fork openings 931, the damping mechanism 90 further includes one or more fixing posts 94, and the one or more fixing posts 94 are fixedly mounted on the bottom plate 25 and are located in the one or more fork openings 931 in a one-to-one correspondence manner. The fixing post 94 is used for supporting and fixing the fixing seat 93.

Optionally, the set-top box 100 includes two damping mechanisms 90, and both damping mechanisms 90 are accommodated in the internal installation space of the set-top box 100.

In summary, the technical solution of the present application includes, but is not limited to, the following advantages:

1. the first casing 10 is movable to be raised with respect to the second casing 20 such that the first casing 10 is opened with respect to the second casing 20 to increase the internal installation space, thereby facilitating heat dissipation.

2. Under the action of the bracket 30, the air supply device 42 can be conveniently moved into the internal installation space or moved out of the internal installation space, so that the maintenance of the air supply device 42 is convenient, and the complexity of a heat dissipation structure is reduced.

3. The first casing 10 and the second casing 20 enclose an internal installation space of the set-top box 100, the internal installation space includes the accommodating position 171, and under the action of the bracket 30, the remote controller 41 for controlling the set-top box 100 can move into the internal installation space or move out of the internal installation space, so that the internal space of the set-top box 100 is fully utilized, and the purpose of conveniently storing the remote controller 41 is achieved.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A set top box, comprising:

a first housing;

the first shell is movably arranged on the second shell, the first shell and the second shell enclose an internal installation space of the set-top box, when the first shell moves to rise to a first preset position relative to the second shell, the set-top box is in a working state, and when the first shell moves to fall to a second preset position relative to the second shell, the set-top box is in a standby state or a power-off state,

the internal installation space comprises a first installation space;

the first shell comprises a first side wall, a second side wall, a third side wall, a fourth side wall and a top plate, the top plate is positioned on one side of the second shell, the first side wall, the second side wall, the third side wall and the fourth side wall are convexly arranged on one side surface of the top plate facing the second shell, the first side wall, the second side wall, the third side wall and the fourth side wall are sequentially connected end to form a first enclosing wall, and the top plate and the first enclosing wall enclose to form a first installation space,

one or more through heat dissipation holes are formed in the first surrounding wall.

2. The set top box of claim 1, wherein the internal installation space further comprises a second installation space; the second casing includes fifth lateral wall, sixth lateral wall, seventh lateral wall, eighth lateral wall and bottom plate, the bottom plate orientation the protruding fifth lateral wall that is equipped with of a side of roof the sixth lateral wall the seventh lateral wall with the eighth lateral wall, the fifth lateral wall the sixth lateral wall the seventh lateral wall with eighth lateral wall end to end connects gradually and forms the second enclosure wall, the bottom plate with the second enclosure wall encloses to close and forms the second installation space, first enclosure wall can hold in the second installation space.

3. The set top box of claim 2, wherein when the first housing is moved up to the first predetermined position relative to the second housing, the first wall partially overlaps the second wall, and one or more of the heat dissipation holes are exposed; when the first housing moves relative to the second housing and descends to the second preset position, the first surrounding wall overlaps the second surrounding wall, and the first surrounding wall is accommodated in the second installation space.

4. The set-top box of claim 1, further comprising an air supply device, wherein the air supply device is accommodated in the first installation space.

5. The set top box of claim 2, further comprising a main circuit board and a first patching circuit board, the main circuit board being electrically connected with the first patching circuit board; the first switching circuit board is contained in the first installation space, and the main circuit board is contained in the second installation space.

6. The set-top box of claim 5, wherein the first riser circuit board is mounted to the top panel with a panel surface of the first riser circuit board facing the first peripheral wall; the main circuit board is installed in the bottom plate, just the face orientation of main circuit board the bottom plate.

7. The set-top box of claim 5, further comprising an air supply device, wherein the air supply device is accommodated in the first installation space, and the air supply device is electrically connected to the first switching circuit board.

8. The set top box of claim 1 wherein the extreme position of the first housing moving up relative to the second housing is the first predetermined position and the extreme position of the first housing moving down relative to the second housing is the second predetermined position.