CN112822533B

CN112822533B - High-efficient heat dissipation intelligence STB

Info

Publication number: CN112822533B
Application number: CN202110070856.6A
Authority: CN
Inventors: 张思芳
Original assignee: Shenzhen Ximi Communication Co ltd
Current assignee: Shenzhen Ximi Communication Co ltd
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2023-03-24
Anticipated expiration: 2041-01-19
Also published as: CN112822533A

Abstract

The utility model relates to an intelligent STB of high-efficient heat dissipation, include the casing and install at the inside circuit board of casing, the bottom fixedly connected with lifting unit of casing, temperature sensor is still installed to the casing, and temperature sensor is connected with microcontroller, and microcontroller has preset the temperature reference value in order to control lifting unit motion in order to prop up the casing when the temperature that generates heat of casing surpasss the default. The temperature sensor is arranged at the bottom of the casing to detect the temperature of the bottom of the casing in real time, and when the temperature of the bottom of the casing is higher than a temperature reference value, the microcontroller controls the lifting assembly to lift the casing, so as to increase the contact area between the bottom of the casing and the air and further increase the heat dissipation effect of the bottom of the casing, so that the bottom of the casing is not easy to have too high local temperature, and the set top box with the integral height being high can also achieve the effect of facilitating the operation of a user. When the temperature of the set-top box is at a normal value, the microcontroller controls the shell to reset so as to reduce the overall height of the set-top box and prevent the set-top box from being knocked down.

Description

High-efficient heat dissipation intelligence STB

Technical Field

The application relates to the field of digital televisions, in particular to an intelligent set top box with high heat dissipation efficiency.

Background

With the popularization of high definition televisions, set top boxes used with high definition televisions are also widely used. A set-top box is a device that connects a television set with an external signal source. The set-top box receives digital contents, including an electronic program guide, an internet web page, and the like, in addition to images and sounds that an analog television can provide. The set-top box comprises a box body and various electronic components arranged in the set-top box.

For the related technologies, the inventor thinks that the set-top box is generally directly placed on a desktop, and under the condition that the set-top box works for a long time, the heat dissipation performance between the bottom of the set-top box and the desktop is poor, so that the temperature at the bottom of the set-top box is too high, and further, the internal circuit of the set-top box is affected.

Disclosure of Invention

In order to solve the influence on the inside of the set top box caused by the overhigh temperature of the set top box, the application provides the intelligent set top box with high heat dissipation efficiency.

The application provides an intelligent STB of high-efficient heat dissipation adopts following technical scheme:

the utility model provides an intelligent STB of high-efficient heat dissipation, includes the casing and installs the circuit board in the casing inside, the bottom fixedly connected with lifting unit of casing, the casing is still installed and is used for detecting the casing temperature that generates heat, and temperature sensor is connected with microcontroller, and microcontroller has preset the temperature reference value in order to control lifting unit to move in order to prop the casing when the temperature that generates heat of casing surpasss the default.

Through adopting above-mentioned technical scheme, through the bottom at the casing set up temperature sensor with the temperature of real-time detection chassis bottom, in order when the temperature at chassis bottom is higher than the temperature reference value, microcontroller control lifting unit risees the casing, in order to increase the area of contact between chassis bottom and the air, and then increase chassis bottom's radiating effect, in order to make the difficult local high temperature of bottom of casing, the STB that whole height risees still plays the effect of convenience of customers operation. When the temperature of the set-top box is at a normal value, the microcontroller controls the shell to reset so as to reduce the overall height of the set-top box and prevent the set-top box from being knocked down.

Preferably, the lifting component comprises a plurality of supporting rods, a cavity for placing the supporting rods is formed in the bottom of the machine shell, and the lifting component further comprises a driving piece for driving the plurality of supporting rods to move towards the direction far away from the bottom of the machine shell.

Through adopting above-mentioned technical scheme, prop the casing off-ground through setting up a plurality of bracing pieces under the effect of driving piece to make the heat that gives out from the casing is difficult for gathering between casing and placing the face, reduced the influence to the circuit board in the casing.

Preferably, the driving piece comprises a screw rod which is rotatably connected with the casing, the screw rod is placed on the bottom surface of the vertical casing, a sliding block which is in threaded connection with the screw rod is sleeved on the screw rod, the supporting rod is fixedly connected with the sliding block, the supporting rod is placed in parallel with the screw rod, and the casing is fixedly connected with a power piece which drives the sliding block to move towards the direction far away from or close to the casing.

Through adopting above-mentioned technical scheme, mutually support through setting up lead screw and slider to drive the bracing piece motion at the gliding in-process slider of drive slider along lead screw axis, with prop the casing from the face of placing, so that dispel the heat.

Preferably, the driving member comprises an air cylinder, and a piston rod of the air cylinder is fixedly connected with the sliding block.

Through adopting above-mentioned technical scheme, through setting up the cylinder, through the flexible effect of cylinder in order to promote the slider motion, and then drive the bracing piece motion.

Preferably, the cylinder is controlled by the microcontroller.

Through adopting above-mentioned technical scheme, be controlled by microprocessor through setting up the cylinder, through microprocessor alright in order to control the cylinder action, improved the intelligent degree of operation.

Preferably, the lead screw becomes cavity and one end opening setting, and lifting unit includes that one end is located the slide bar of lead screw, is provided with the restriction piece that control lead screw and slide bar are fixed or separate in the lead screw, and the other end of slide bar stretches out outside the lead screw, and lifting unit still includes driving gear and the balancing pole of cup jointing in the slide bar and stretching out the one end outside the lead screw, and the one end of balancing pole is provided with the tooth, and the balancing pole meshes with the tooth.

By adopting the technical scheme, the balance rods are driven to extend out of the supporting rods in the process of rotating the lead screw by arranging the driving gear and the balance rods, so that the balance rods extend around the lead screw, the set top box is not prone to toppling when the shell is laterally inclined in the process of radiating the shell, and the set top box keeps better stability. When the balance rod is driven to move through the screw rod, the screw rod and the sliding rod are fixed through the limiting part, so that the screw rod drives the sliding rod to rotate, and the balance rod is driven to move by the driving gear. In a similar way, when the balance rod does not need to be stretched out, the limiting part is unlocked, the sliding rod is connected with the screw rod in a sliding manner, and the supporting rod is driven to move only through the screw rod.

Preferably, the slider includes connecting portion and movable part, connecting portion and lead screw threaded connection, cylinder and connecting portion fixed connection, bracing piece and movable part fixed connection, the last control piece of installing control movable part and connecting portion fixedly or separating of connecting portion.

By adopting the technical scheme, the connecting part and the movable part are separated by arranging the control part when the gear is started to rotate only through the screw rod, so that the supporting rod is kept still, the balance rod extends out of the periphery of the screw rod, and when the set top box is required to be toppled, the balance rod supports the set top box to enable the set top box to be not prone to toppling.

Preferably, the control part comprises an electromagnetic chuck fixedly connected to the end face of the connecting part close to the movable part, and the electromagnetic chuck is fixedly attracted to the movable part.

Through adopting above-mentioned technical scheme, electromagnet can control through microcontroller, through controlling electromagnet break-make electricity to realize the fixed and separation of connecting portion and movable part, drive to bracing piece and balancing pole with the cooperation lead screw.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the temperature sensor is arranged at the bottom of the casing to detect the temperature of the bottom of the casing in real time, and when the temperature of the bottom of the casing is higher than a temperature reference value, the microcontroller controls the lifting assembly to lift the casing, so as to increase the contact area between the bottom of the casing and the air and further increase the heat dissipation effect of the bottom of the casing, so that the bottom of the casing is not easy to have too high local temperature, and the set top box with the integral height being high can also achieve the effect of facilitating the operation of a user. When the temperature of the set-top box is at a normal value, the microcontroller controls the shell to reset so as to reduce the overall height of the set-top box and ensure that the set-top box is not easy to knock down;

2. through setting up driving gear and balancing pole to outside the bracing piece is stretched out to the balancing pole of at the pivoted in-process drive of lead screw, so that a plurality of balancing poles stretch around the lead screw, so that at the radiating in-process of casing, when the casing takes place the side slope, the difficult emergence of STB is emptyd, and the STB keeps the stability of preferred. When the balance rod is driven to move through the screw rod, the screw rod and the sliding rod are fixed through the limiting part, so that the screw rod drives the sliding rod to rotate, and the balance rod is driven to move by the driving gear. Similarly, when the balance rod does not need to extend out, the limiting piece is unlocked and is connected with the screw rod in a sliding manner, so that the screw rod only drives the supporting rod to move;

3. through setting up the control piece to when only needing to start gear rotation through the lead screw, make connecting portion and movable part separation, so that the bracing piece keeps motionless, the balancing pole stretches out around the lead screw, so that when the STB wants to take place to empty, the balancing pole supports the STB so that the STB is difficult for taking place to empty.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a set-top box in an embodiment of the present application;

fig. 2 is a schematic view of the internal structure of the sleeve according to an embodiment of the present invention.

Description of reference numerals: 1. a housing; 2. a lifting assembly; 21. a support bar; 22. a drive member; 221. a screw rod; 222. a slider; 2221. a connecting portion; 2222. a movable portion; 3. a cylinder; 4. a slide bar, 5 and a driving gear; 6. a balancing pole; 7. a cavity; 8. a sleeve; 9. and a bearing.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses an intelligent set top box with high-efficiency heat dissipation. Referring to fig. 1 and 2, the set-top box includes a casing 1 and a circuit board installed in the casing 1, a lifting assembly 2 is installed at the bottom of the casing 1, and the lifting assembly 2 supports the casing 1 away from a placement surface (i.e., a surface where the set-top box is placed and in contact with the bottom of the set-top box).

Referring to fig. 2, the lifting assembly 2 includes a plurality of support rods 21, a cavity 7 for accommodating the support rods 21 is formed at the bottom of the housing 1, a sleeve 8 is fixed at the position of the cavity 7, and a driving member 22 for driving one end of the support rod 21 to move in a direction away from or close to the bottom of the housing 1 is installed in the sleeve 8.

Referring to fig. 2, the driving member 22 includes a screw rod 221 rotatably connected to the housing 1, the screw rod 221 is disposed perpendicular to the bottom surface of the housing 1, a bearing 9 is fixedly connected to the inside of the sleeve 8, the bearing 9 is sleeved on the screw rod 221, one end of the screw rod 221 is fixedly connected to an inner ring of the bearing 9, a slider 222 is sleeved on the screw rod 221, the slider 222 is in threaded connection with the screw rod 221, the plurality of support rods 21 are all fixed to the periphery of the slider 222, and the slider 222 drives the support rods 21 to move synchronously when moving along the axis of the screw rod 221. The sleeve 8 is also provided with a power part for driving the slide block 222 to move along the axis of the screw rod 221.

Referring to fig. 2, the power member includes a cylinder 3, the cylinder 3 is fixed in the sleeve 8, the axis of the cylinder 3 is parallel to the axis of the lead screw, and the piston rod of the cylinder 3 is fixedly connected with the slider 222.

Referring to fig. 2, the screw rod 221 is located in the sleeve 8, the screw rod 221 is hollow, one end of the screw rod 221 is open, the lifting assembly 2 includes a sliding rod 4 and a balance rod 6, one end of the sliding rod 4 extends out of the screw rod 221, the other end of the sliding rod 4 is located in the screw rod 221 and is slidably connected with the screw rod 221, and the screw rod 221 is provided with a limiting piece for controlling the locking or unlocking of the sliding rod 4 and the screw rod 221.

Referring to fig. 2, in the present embodiment, the limiting member includes an electromagnet (not shown in the figure), the electromagnet is fixed on the inner wall of the screw rod 221 near the opening, the electromagnet is attracted to the sliding rod 4 and fixed when the electromagnet is powered on, and the sliding rod 4 is connected to the screw rod 221 in a sliding manner when the electromagnet is powered off. In other embodiments, the limiting member may also be a suction cup, a bolt, a latch, or the like, which can lock or unlock the sliding rod 4 and the screw rod 221.

Referring to fig. 2, one end of the sliding rod 4 extending out of the lead screw 221 is coaxially and fixedly connected with a driving gear 5, one end of the balance bar 6 penetrates through the supporting rod 21 along the length direction perpendicular to the supporting rod 21 and is in sliding connection with the supporting rod 21, a protruding hole for the balance bar 6 to extend out is formed in the supporting rod 21, the other end of the balance bar 6 is fixedly connected with teeth, the balance bar 6 is meshed with the driving gear 5 through the teeth, and the balance bar 6 extends along the tangential direction of the driving gear 5 in the direction of the supporting rod 21.

Referring to fig. 2, three balancing rods 6 are provided, the number of the balancing rods 6 is the same as that of the supporting rods 21, and the initial state of the balancing rods 6 is that the end parts of the balancing rods 6 far away from the driving gear 5 are positioned in the extending holes. The three balance bars 6 are evenly spaced around the circumference of the driving gear 5. The balance bar 6 is driven by the driving gear 5, and one end far away from the driving gear 5 extends outwards from the support bar 21 to be supported around the screw rod 221.

Referring to fig. 2, the slider 222 includes a connecting portion 2221 and a movable portion 2222, the connecting portion 2221 is sleeved on the screw rod 221 and is in threaded connection with the screw rod 221, the movable portion 2222 is also sleeved on the screw rod 221, the movable portion 2222 is slidably connected with the screw rod 221, cross sections of ends of the movable portion 2222 and the connecting portion 2221 are rectangular, the movable portion 2222 is disposed close to the cylinder 3, a piston rod of the cylinder 3 passes through the movable portion 2222 and is fixedly connected with the connecting portion 2221, and the support rod 21 is fixedly connected with the movable portion 2222. The end surface of the connecting portion 2221 abuts against the end surface of the movable portion 2222.

Referring to fig. 2, the connection portion 2221 is mounted with a control member for controlling the movable portion 2222 to be fixed to or separated from the connection portion 2221.

Referring to fig. 2, in the present embodiment, the control member includes an electromagnetic chuck (not shown in the figure) fixedly connected to the end surface of the connecting portion 2221 close to the movable portion 2222, and the electromagnetic chuck is fixed to the movable portion 2222 in an attraction manner.

Referring to fig. 2, a temperature sensor is further fixed at the bottom of the casing 1, the temperature sensor is connected with a microcontroller, the microcontroller presets a temperature reference value to control the cylinder 3 to start when the heating temperature of the casing 1 exceeds a preset value, and the cylinder 3 drives the connecting portion 2221 to move so as to drive the supporting rod 21 to extend out of the cavity 7 to support the casing 1.

Referring to fig. 2, both the electromagnetic chuck and the electromagnet are controlled by a microcontroller.

Referring to fig. 2, a motion detection assembly is further installed on the casing 1, and the motion detection assembly is connected to the microcontroller, so that when it is detected that the casing 1 is ready to tilt, the cylinder 3 is controlled to move, and the electromagnet is powered on, so that when the cylinder 3 drives the connecting portion 2221 to move to drive the screw rod 221 to rotate, the driving gear 5 rotates to drive the balance rod 6 to extend out and be supported on the periphery of the screw rod 221.

Referring to fig. 2, the motion detection assembly includes a micro camera (not shown in the figure) for acquiring a motion state of the casing 1 in real time, the microcontroller acquires continuous frame images from the micro camera and analyzes the continuous frame images to determine whether the casing 1 is inclined compared with an original state at the moment, and if so, the air cylinder 3 is started to support the casing 1 by extending the balance rod 6, so that the casing 1 is not prone to toppling.

The implementation principle of the high-efficiency heat dissipation intelligent set top box in the embodiment of the application is as follows:

place the STB on the horizontal plane, sleeve 8 and horizontal plane butt, when microcontroller judges that the temperature that temperature sensor detected is higher than the default, micro control cylinder 3 starts, electromagnet gets electric simultaneously, so that activity portion 2222 and connecting portion 2221 are fixed, so that when cylinder 3 drive connecting portion 2221 moves, connecting portion 2221 drives the bracing piece 21 motion, bracing piece 21 stretches out outside sleeve 8, in order to prop up casing 1, and then increased the heat radiating area of STB, so that the difficult local high temperature's of appearing condition of STB.

The balance bar 6 and the support bar 21 cooperate with each other to increase the contact area of the set-top box with the horizontal surface, so that the set-top box is not prone to toppling over when the set-top box is at a certain height in the horizontal surface.

When the set top box is detected to incline, the electromagnet is controlled by the microcontroller to be powered on, the electromagnetic chuck is powered off, the movable part 2222 and the connecting part 2221 are unlocked, the screw rod 221 is driven to rotate in a mode of driving the connecting part 2221 to move, the driving gear 5 is driven to move, the balance rod 6 is driven to extend out of the supporting rod 21 to be supported on the periphery of the sleeve 8, the contact area between the set top box and the horizontal plane is further increased, the set top box is enabled to be not prone to toppling, and the service life of the set top box is prolonged.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), rambus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; 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; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an intelligent STB of high-efficient heat dissipation which characterized in that: the temperature detection device comprises a machine shell (1) and a circuit board arranged in the machine shell (1), wherein the bottom of the machine shell (1) is fixedly connected with a lifting assembly (2), the machine shell (1) is also provided with a temperature sensor for detecting the heating temperature of the machine shell (1), the temperature sensor is connected with a microcontroller, and the microcontroller is preset with a temperature reference value so as to control the lifting assembly (2) to move to prop up the machine shell (1) when the heating temperature of the machine shell (1) exceeds a preset value; the lifting assembly (2) comprises a plurality of supporting rods (21), a cavity (7) for placing the supporting rods (21) is formed in the bottom of the machine shell (1), and the lifting assembly (2) further comprises a driving piece (22) for driving the plurality of supporting rods (21) to synchronously move towards the direction far away from the bottom of the machine shell (1); the driving piece (22) comprises a screw rod (221) rotatably connected with the machine shell (1), the screw rod (221) is placed perpendicular to the bottom surface of the machine shell (1), a sliding block (222) in threaded connection with the screw rod (221) is sleeved on the screw rod (221), the plurality of supporting rods (21) are fixedly connected with the sliding block (222), the supporting rods (21) are placed in parallel with the screw rod (221), and the machine shell (1) is fixedly connected with a power piece for driving the sliding block (222) to move towards the direction far away from or close to the machine shell (1); the power part comprises a cylinder (3), and a piston rod of the cylinder (3) is fixedly connected with the sliding block (222); the cylinder (3) is controlled by the microcontroller; the lead screw (221) is hollow, one end of the lead screw is provided with an opening, the lifting assembly (2) comprises a sliding rod (4) with one end positioned in the lead screw (221), a limiting piece for controlling the lead screw (221) to be fixed or separated from the sliding rod (4) is arranged in the lead screw (221), the other end of the sliding rod (4) extends out of the lead screw (221), the lifting assembly (2) further comprises a driving gear (5) and a balance rod (6) which are sleeved on one end, extending out of the lead screw (221), of the sliding rod (4), one end of the balance rod (6) penetrates through the supporting rod (21) along the length direction of the vertical supporting rod (21) and is in sliding connection with the supporting rod (21), one end of the balance rod (6) is provided with teeth, and the balance rod (6) is meshed with the teeth; the limiting piece comprises an electromagnet, the electromagnet is fixed on the inner wall of the screw rod (221) close to the opening, the electromagnet is fixedly attracted with the sliding rod (4) when being electrified, and the sliding rod (4) is connected with the screw rod (221) in a sliding manner when the electromagnet is not electrified; the sliding block (222) comprises a connecting part (2221) and a movable part (2222), the connecting part (2221) is sleeved on the screw rod (221) and is in threaded connection with the screw rod (221), the movable part (2222) is also sleeved on the screw rod (221), the movable part (2222) is in sliding connection with the screw rod (221), a piston rod of the air cylinder (3) passes through the movable part (2222) and is fixedly connected with the connecting part (2221), and the supporting rod (21) is fixedly connected with the movable part (2222); the connecting part (2221) is provided with a control part for controlling the movable part (2222) to be fixed with or separated from the connecting part (2221); the control part comprises an electromagnetic chuck fixedly connected to the end face, close to the movable part (2222), of the connecting part (2221), and the electromagnetic chuck is fixedly attracted with the movable part (2222).