CN113395557A - Waterproof heat dissipation device for set top box - Google Patents
Waterproof heat dissipation device for set top box Download PDFInfo
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- CN113395557A CN113395557A CN202110680569.7A CN202110680569A CN113395557A CN 113395557 A CN113395557 A CN 113395557A CN 202110680569 A CN202110680569 A CN 202110680569A CN 113395557 A CN113395557 A CN 113395557A
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- heat dissipation
- mounting box
- wall
- dislocation
- buckling cover
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 45
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 230000004888 barrier function Effects 0.000 claims abstract description 19
- 238000009423 ventilation Methods 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 14
- 238000001816 cooling Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20127—Natural convection
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention belongs to the technical field of set top box protection, and particularly relates to a waterproof heat dissipation device for a set top box, which comprises an installation box, a buckling cover, a heat dissipation mechanism and a ventilation mechanism, wherein the installation box is provided with a mounting hole; the mounting box is flat, a buckling cover is connected above the mounting box, and a heat dissipation mechanism is fixedly mounted in the upper wall of the mounting box; the heat dissipation mechanism comprises a heat dissipation pipe, a heat dissipation groove, a shifting sheet, a rubber plate, a friction wheel, a sealing plate, a buffer cavity, an expansion bag and a barrier film; the lower ends of the radiating pipes are fixedly connected in the upper wall of the mounting box, the radiating pipes penetrate through the upper wall of the mounting box, and the upper ends of the radiating pipes are inserted in the wall of the buckling cover in a sliding mode; make the inside barrier film of inflation bag receive great extrusion force when the inboard cavity atmospheric pressure of closing plate increases, and then extrude the inside non-Newtonian fluid of inflation bag for the contact resistance between the outer wall of friction pulley and the plectrum is more stable, thereby ensures to break away from the contact between plectrum and the rubber slab.
Description
Technical Field
The invention belongs to the technical field of set top box protection, and particularly relates to a waterproof heat dissipation device for a set top box.
Background
A digital video converter Box (Set Top Box), abbreviated STB, is a device that connects a television Set to an external signal source, commonly referred to as a Set-Top Box or Set-Top Box. It can convert the compressed digital signal into television content and display it on the television. The signals may come from cable, satellite dish, broadband network and terrestrial broadcast. The set-top box receives digital content, including electronic program guides, internet web pages, etc., in addition to the images and sounds that an analog television can provide. It enables users to watch digital television programs on existing television sets and to conduct interactive digital entertainment, education and commercialization activities over a network.
The set top box is used as an electric appliance, various precise electronic parts are filled in the set top box, so that the set top box can generate a large amount of heat during working, the service life of the set top box can be greatly reduced if the heat cannot be dissipated, water drops are easily generated in the exposed set top box in a wet area all the year round, the condition that water enters the set top box is easily caused, the set top box cannot normally work due to internal short circuit of the set top box, and meanwhile, water is sprayed above the set top box in a family due to careless conditions, so that the internal water enters the set top box.
Disclosure of Invention
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a waterproof heat dissipation device for a set top box, which comprises an installation box, a buckling cover, a heat dissipation mechanism and a ventilation mechanism, wherein the installation box is provided with a mounting hole; the mounting box is flat, a buckling cover is connected above the mounting box, and a heat dissipation mechanism is fixedly mounted in the upper wall of the mounting box; the heat dissipation mechanism comprises a heat dissipation pipe, a heat dissipation groove, a shifting sheet, a rubber plate, a friction wheel, a sealing plate, a buffer cavity, an expansion bag and a barrier film; the lower ends of the radiating pipes are fixedly connected in the upper wall of the mounting box, the radiating pipes penetrate through the upper wall of the mounting box, and the upper ends of the radiating pipes are inserted in the wall of the buckling cover in a sliding mode; the inner part of the buckling cover is provided with a heat dissipation groove, and the upper surface of the buckling cover is arranged in an arc shape; and two ends of the heat dissipation groove penetrate through two ends of the buckling cover to be communicated with the outside.
The outer surfaces of two sides of the upper end of the radiating pipe are fixedly connected with shifting pieces; the shifting piece is made of elastic metal materials, the upper end of the shifting piece is horizontally inserted into the wall of the buckling cover, and the lower end of the shifting piece is arranged in the heat dissipation groove.
The upper end of the shifting piece is horizontally in friction contact with a rubber plate; the rubber plates are symmetrically arranged above two sides of the radiating pipe, and friction wheels are uniformly and rotatably connected inside the rubber plates; the lower end of the friction wheel is in friction contact with the shifting sheet.
The friction wheel is hollow, the outer wall of the friction wheel is a rubber wall, supporting rods are uniformly arranged in the friction wheel, and sealing plates are uniformly and symmetrically fixedly connected to the inner surface of the friction wheel; the sealing plates are arranged in pairs into a group, the sealing plates are made of steel materials, the inner side cavity of each group of sealing plates is communicated with the buffer cavity, and expansion bags are uniformly arranged between each group of sealing plates; the buffer cavity is arranged above the radiating pipe; the expansion bag is fixedly arranged in the outer wall of the friction wheel, and a barrier film is fixedly connected inside the expansion bag; the inner side cavity of the barrier film is communicated with the cavity between the sealing plates, and the non-Newtonian fluid is filled in the outer side cavity of the barrier film.
The ventilation mechanism comprises a pull rope, a dislocation plate, a sliding chute, a dislocation hole, a ventilation hole, a filter screen plate and bristles; the pull ropes are symmetrically and movably arranged in the wall of the mounting box, the upper ends of the pull ropes are symmetrically and fixedly connected to the lower surfaces of the two ends of the buckling cover, and the lower ends of the pull ropes are fixedly connected to the outer ends of the dislocation plates; the dislocation plate is symmetrically and elastically installed in a lower wall sliding groove of the installation box in a sliding manner, and dislocation holes are uniformly formed in the dislocation plate; the dislocation holes and the air holes are arranged in a dislocation way at the beginning; the air holes are uniformly and symmetrically formed in the lower wall of the mounting box, and the lower ends of the air holes are fixedly provided with filter screen plates; bristles are uniformly and fixedly arranged on the lower surface of the dislocation plate; the bristles are initially arranged opposite to the filter screen plate at the lower end of the air hole.
The bristles are initially arranged obliquely, and the inclined directions of the bristles are inclined towards the left side and the right side of the mounting box; when the set-top box generates a large amount of heat during working, and the inner cavity of the mounting box is a closed cavity due to the existence of the buckling cover initially, when the set-top box generates heat due to working, the inner cavity of the mounting box generates heat, and the internal air pressure of the mounting box begins to increase gradually, when the internal air pressure of the mounting box increases to a certain degree, the buckling cover is jacked up through the radiating pipe, so that the upper end of the radiating pipe is communicated with the radiating groove, high-temperature gas in the mounting box is further radiated to the outside through the radiating groove to achieve the purpose of cooling, and in the process of jacking up the buckling cover through the radiating pipe, the radiating pipe and the inner wall of the buckling cover above the radiating groove have a certain closed distance, so that high-pressure gas is firstly injected into the buffer cavity in the process of jacking up the buckling cover through the radiating pipe, so that the air pressure of the cavity between the sealing plates in the friction wheel is increased, so that the outer wall of the friction wheel protrudes outwards, the upper end of the shifting sheet is jacked downwards for a distance, the upper surface of the shifting sheet is separated from the contact with the rubber plate, the friction force between the shifting sheet and the rubber plate is greatly reduced, the buckling cover is jacked up under the action of air pressure more easily, when the air pressure of the cavity inside the sealing plate is increased, the barrier film inside the expansion bag is subjected to larger extrusion force, non-Newtonian fluid inside the expansion bag is extruded, the contact resistance between the outer wall of the friction wheel and the shifting sheet is more stable, the shifting sheet and the rubber plate can be separated from the contact, when the radiating pipe jacks up the buckling cover to enable the radiating pipe to be communicated with the radiating groove, the buffer cavity is also communicated with the radiating groove, so that the air pressure of the cavity inside the sealing plate is released, the friction wheel is reset, and the upper end of the shifting sheet is contacted with the rubber plate again, the reset time of the shifting sheet is greatly increased, so that the heat dissipation pipe can be continuously used for a period of time when being communicated with the heat dissipation groove, the heat dissipation in the mounting box is greatly improved, the heat dissipation effect on the set top box is improved, the pull rope can be pulled to move upwards when the buckling cover is jacked upwards, and then the dislocation plate can be pulled to slide in the sliding groove, so that the dislocation hole is gradually communicated with the air holes, namely, the upper wall and the lower wall of the mounting box are provided with open holes, the outside cold air is sucked into the mounting box through the air holes by utilizing the principle that hot air moves upwards, the heat dissipation effect on the set top box is further improved, and the whole mounting box is restored to a closed state again when the buckling cover is reset, the waterproof effect of the set top box is greatly improved, and because the lower surface of the dislocation plate is obliquely provided with bristles, the bristles and the filter screen plate can generate larger resistance when the dislocation plate is pulled outwards, the brush hair is cleaned through the filter screen plate, so that the ventilation efficiency of the air holes can be ensured, and meanwhile, dust and the like can be prevented from entering the mounting box to influence electronic elements inside the set top box.
The invention has the following beneficial effects:
1. in-process that will detain the lid jack-up through the cooling tube, the inner wall of cooling tube and radiating groove top lock lid has one section airtight distance, so can pour into high-pressure gas into the cushion chamber earlier when high-pressure gas passes through the in-process that the cooling tube will detain the lid jack-up, thereby make the cavity atmospheric pressure increase between the closing plate in the friction pulley, thereby make the outer wall of friction pulley to the outside protruding, thereby one section distance of upper end jack-up with the plectrum, make the upper surface of plectrum break away from the contact with the rubber slab, thereby reduce the frictional force between plectrum and the rubber slab by a wide margin, make under the effect of atmospheric pressure more easily with lock lid jack-up.
2. Make the inside barrier film of inflation bag receive great extrusion force when the inboard cavity atmospheric pressure of closing plate increases, and then extrude the inside non-Newtonian fluid of inflation bag, make the contact resistance between outer wall of friction pulley and the plectrum more stable, thereby ensure to break away from the contact between plectrum and the rubber slab, and when the cooling tube was covered the jack-up with the lock and is makeed cooling tube and radiating groove intercommunication, the cushion chamber also communicates with the radiating groove, and then make the inboard cavity atmospheric pressure of closing plate obtain the release, and then make the friction pulley reset, thereby make the upper end of plectrum contact with the rubber slab again, increase the reset time of plectrum promptly by a wide margin, thereby can last a period of time when making cooling tube and radiating groove intercommunication, thereby improve the inside thermal scattering and disappearing of mounting box by a wide margin, improve the radiating effect to the STB.
3. When the buckling cover is jacked upwards, the pull rope can be pulled to move upwards, and then the dislocation plate can be pulled to slide in the sliding groove, so that the dislocation hole is gradually communicated with the air holes, that is, the upper and lower walls of the mounting box are provided with holes, and the outside cold air is sucked into the mounting box through the ventilation holes by utilizing the principle that the hot air moves upwards, so as to further improve the heat dissipation effect on the set-top box, meanwhile, when the buckling cover is reset, the whole mounting box is restored to the closed state again, the waterproof effect of the set top box is greatly improved, and the bristles are obliquely arranged on the lower surface of the dislocation plate, therefore, when the dislocation plate is pulled outwards, the bristles and the filter screen plate generate larger resistance, so that the bristles clean the filter screen plate through the filter screen plate, the ventilation efficiency of the ventilation holes can be ensured, meanwhile, the influence of dust and the like entering the mounting box on electronic elements inside the set top box can be avoided.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is an enlarged view of a portion of the invention at A in FIG. 1;
FIG. 3 is an enlarged view of a portion of the invention at B in FIG. 1;
FIG. 4 is an enlarged view of a portion of the invention at C in FIG. 3;
fig. 5 is an enlarged view of a portion of the invention at D in fig. 4.
In the figure: the mounting box 1, the buckling cover 2, the heat dissipation mechanism 3, the heat dissipation pipe 31, the heat dissipation groove 32, the shifting piece 33, the rubber plate 34, the friction wheel 35, the sealing plate 36, the buffer cavity 37, the expansion bag 38, the barrier film 39, the ventilation mechanism 4, the pull rope 41, the dislocation plate 42, the sliding groove 43, the dislocation hole 44, the ventilation hole 45, the filter screen plate 46 and the brush hair 47.
Detailed Description
A waterproof heat sink for a set-top box according to an embodiment of the present invention will be described below with reference to fig. 1 to 5.
As shown in fig. 1-5, the waterproof heat dissipation device for the set top box according to the present invention includes a mounting box 1, a fastening cover 2, a heat dissipation mechanism 3 and a ventilation mechanism 4; the mounting box 1 is flat, a buckling cover 2 is connected above the mounting box 1, and a heat dissipation mechanism 3 is fixedly mounted in the upper wall of the mounting box 1; the heat dissipation mechanism 3 comprises a heat dissipation pipe 31, a heat dissipation groove 32, a shifting sheet 33, a rubber plate 34, a friction wheel 35, a sealing plate 36, a buffer cavity 37, an expansion bag 38 and a barrier film 39; the lower ends of the radiating pipes 31 are fixedly connected in the upper wall of the mounting box 1, the radiating pipes 31 penetrate through the upper wall of the mounting box 1, and the upper ends of the radiating pipes 31 are inserted in the wall of the buckling cover 2 in a sliding manner; a heat dissipation groove 32 is formed in the buckling cover 2, and the upper surface of the buckling cover 2 is arranged in an arc shape; two ends of the heat dissipation groove 32 penetrate through two ends of the fastening cover 2 to be communicated with the outside.
The outer surfaces of both sides of the upper end of the radiating pipe 31 are fixedly connected with shifting pieces 33; the shifting piece 33 is made of elastic metal material, the upper end of the shifting piece 33 is horizontally inserted into the wall of the buckling cover 2, and the lower end of the shifting piece 33 is arranged in the heat dissipation groove 32.
The upper end of the shifting sheet 33 is horizontally in friction contact with a rubber plate 34; the rubber plates 34 are symmetrically arranged above the two sides of the radiating pipe 31, and friction wheels 35 are uniformly and rotatably connected inside the rubber plates 34; the lower end of the friction wheel 35 is in frictional contact with the paddle 33.
The friction wheel 35 is hollow, the outer wall of the friction wheel 35 is a rubber wall, the friction wheel 35 is uniformly provided with support rods, and the inner surface of the friction wheel 35 is uniformly and symmetrically fixedly connected with sealing plates 36; the sealing plates 36 are arranged in pairs to form a group, the sealing plates 36 are made of steel materials, the inner side cavity of each group of sealing plates 36 is communicated with the buffer cavity 37, and expansion bags 38 are uniformly arranged between each group of sealing plates 36; the buffer chamber 37 is arranged above the radiating pipe 31; the expansion bag 38 is fixedly arranged in the outer wall of the friction wheel 35, and a barrier film 39 is fixedly connected inside the expansion bag 38; the inner cavity of the barrier film 39 communicates with the cavity between the sealing plates 36, and the inner cavity of the outer side of the barrier film 39 is filled with a non-Newtonian fluid.
The ventilation mechanism 4 comprises a pull rope 41, a dislocation plate 42, a sliding chute 43, dislocation holes 44, ventilation holes 45, a filter screen plate 46 and bristles 47; the pull ropes 41 are symmetrically and movably arranged in the wall of the mounting box 1, the upper ends of the pull ropes 41 are symmetrically and fixedly connected to the lower surfaces of the two ends of the buckling cover 2, and the lower ends of the pull ropes 41 are fixedly connected to the outer ends of the dislocation plates 42; the dislocation plate 42 is symmetrically and elastically installed in a lower wall sliding groove 43 of the installation box 1 in a sliding manner, and dislocation holes 44 are uniformly formed in the dislocation plate 42; the dislocation hole 44 and the air hole 45 are in dislocation arrangement at the beginning; the air holes 45 are uniformly and symmetrically arranged in the lower wall of the mounting box 1, and the lower ends of the air holes 45 are fixedly provided with filter screen plates 46; bristles 47 are uniformly and fixedly arranged on the lower surface of the dislocation plate 42; the bristles 47 are initially disposed opposite to the screen plate 46 at the lower end of the airing hole 45.
The bristles 47 are initially arranged obliquely, and the inclined direction of the bristles 47 is inclined towards the left side and the right side of the mounting box 1; when the set-top box is working, a large amount of heat is generated, and initially, the inner cavity of the mounting box 1 is a closed cavity due to the existence of the fastening cover 2, so that when the set-top box is working, the inner cavity of the mounting box 1 is heated, and the internal air pressure thereof begins to gradually increase, when the internal air pressure of the mounting box 1 increases to a certain degree, the fastening cover 2 is jacked up through the radiating pipe 31, so that the upper end of the radiating pipe 31 is communicated with the radiating groove 32, and further, the high-temperature gas in the mounting box 1 is radiated to the outside through the radiating groove 32 to achieve the purpose of cooling, and during jacking up the fastening cover 2 through the radiating pipe 31, the inner wall of the fastening cover 2 above the radiating groove 31 and the radiating groove 32 has a closed distance, so that when the high-pressure gas jacks up the fastening cover 2 through the radiating pipe 31, the high-pressure gas is firstly injected into the buffer cavity 37, thereby increasing the air pressure in the cavity between the sealing plates 36 in the friction wheel 35, and making the outer wall of the friction wheel 35 protrude outward, thereby jacking up the upper end of the pulling piece 33 a distance downward, and making the upper surface of the pulling piece 33 break away from the contact with the rubber plate 34, thereby greatly reducing the friction force between the pulling piece 33 and the rubber plate 34, and making the buckling cover 2 jack up more easily under the action of the air pressure, and when the air pressure in the cavity inside the sealing plate 36 increases, the barrier film 39 inside the expansion bag 38 is subject to a larger extrusion force, and further squeezing the non-newton fluid inside the expansion bag 38, and making the contact resistance between the outer wall of the friction wheel 35 and the pulling piece 33 more stable, thereby ensuring the contact between the pulling piece 33 and the rubber plate 34, and when the radiating pipe 31 jacks up the buckling cover 2 to make the radiating pipe 31 communicate with the radiating groove 32, the buffer cavity 37 also communicates with the radiating groove 32, further, the air pressure in the inner cavity of the sealing plate 36 is released, and further the friction wheel 35 is reset, so that the upper end of the shifting piece 33 is contacted with the rubber plate 34 again, that is, the reset time of the shifting piece 33 is greatly increased, so that the communication between the radiating pipe 31 and the radiating groove 32 can be continued for a period of time, thereby greatly improving the dissipation of heat in the mounting box 1, improving the radiating effect on the set-top box, and meanwhile, when the locking cover 2 is jacked upwards, the pulling rope 41 is pulled to move upwards, and further the dislocation plate 42 is pulled to slide in the sliding groove 43, so that the dislocation hole 44 is gradually communicated with the air holes 45, even if the upper and lower walls of the mounting box 1 are provided with open holes, and the principle that hot air moves upwards is utilized to make the cold air outside enter the mounting box 1 through the air holes 45, further improving the radiating effect on the set-top box, and simultaneously, when the locking cover 2 is reset, the whole mounting box 1 is restored to a closed state again, improve the water-proof effects of STB by a wide margin, and the lower surface slant because of dislocation board 42 is provided with brush hair 47, so can make brush hair 47 and filter screen board 46 produce great resistance when dislocation board 42 is by the outside pulling for brush hair 47 clears up it through filter screen board 46, not only can ensure bleeder vent 45's ventilative efficiency, can also avoid dust etc. to cause the influence to the inside electronic component of STB in getting into mounting box 1 simultaneously.
The specific working process is as follows:
when in use, the set-top box can be placed into the mounting box 1, when the set-top box works, a large amount of heat is generated, and initially, the mounting box 1 is in a closed cavity due to the existence of the buckling cover 2, so that when the set-top box generates heat due to work, the inner cavity of the mounting box 1 generates heat, and the internal air pressure of the mounting box starts to gradually increase, when the internal air pressure of the mounting box 1 increases to a certain degree, the buckling cover 2 is jacked up through the radiating pipe 31, so that the upper end of the radiating pipe 31 is communicated with the radiating groove 32, high-temperature gas in the mounting box 1 is further radiated to the outside through the radiating groove 32 to realize the purpose of cooling, and in the process of jacking up the buckling cover 2 through the radiating pipe 31, the radiating pipe 31 has a section of closed distance with the inner wall of the buckling cover 2 above the radiating groove 32, so that high-pressure gas is firstly injected into the buffer cavity 37 in the process of jacking up the buckling cover 2 through the radiating pipe 31, thereby increasing the air pressure in the cavity between the sealing plates 36 in the friction wheel 35, and making the outer wall of the friction wheel 35 protrude outward, thereby jacking up the upper end of the pulling piece 33 a distance downward, and making the upper surface of the pulling piece 33 break away from the contact with the rubber plate 34, thereby greatly reducing the friction force between the pulling piece 33 and the rubber plate 34, and making the buckling cover 2 jack up more easily under the action of the air pressure, and when the air pressure in the cavity inside the sealing plate 36 increases, the barrier film 39 inside the expansion bag 38 is subject to a larger extrusion force, and further squeezing the non-newton fluid inside the expansion bag 38, and making the contact resistance between the outer wall of the friction wheel 35 and the pulling piece 33 more stable, thereby ensuring the contact between the pulling piece 33 and the rubber plate 34, and when the radiating pipe 31 jacks up the buckling cover 2 to make the radiating pipe 31 communicate with the radiating groove 32, the buffer cavity 37 also communicates with the radiating groove 32, further, the air pressure in the inner cavity of the sealing plate 36 is released, and further the friction wheel 35 is reset, so that the upper end of the shifting piece 33 is contacted with the rubber plate 34 again, that is, the reset time of the shifting piece 33 is greatly increased, so that the communication between the radiating pipe 31 and the radiating groove 32 can be continued for a period of time, thereby greatly improving the dissipation of heat in the mounting box 1, improving the radiating effect on the set-top box, and meanwhile, when the locking cover 2 is jacked upwards, the pulling rope 41 is pulled to move upwards, and further the dislocation plate 42 is pulled to slide in the sliding groove 43, so that the dislocation hole 44 is gradually communicated with the air holes 45, even if the upper and lower walls of the mounting box 1 are provided with open holes, and the principle that hot air moves upwards is utilized to make the cold air outside enter the mounting box 1 through the air holes 45, further improving the radiating effect on the set-top box, and simultaneously, when the locking cover 2 is reset, the whole mounting box 1 is restored to a closed state again, improve the water-proof effects of STB by a wide margin, and the lower surface slant because of dislocation board 42 is provided with brush hair 47, so can make brush hair 47 and filter screen board 46 produce great resistance when dislocation board 42 is by the outside pulling for brush hair 47 clears up it through filter screen board 46, not only can ensure bleeder vent 45's ventilative efficiency, can also avoid dust etc. to cause the influence to the inside electronic component of STB in getting into mounting box 1 simultaneously.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. A waterproof heat dissipation device for a set top box comprises a mounting box (1), a buckling cover (2), a heat dissipation mechanism (3) and a ventilation mechanism (4); the method is characterized in that: the mounting box (1) is flat, a buckling cover (2) is connected above the mounting box (1), and a heat dissipation mechanism (3) is fixedly mounted in the upper wall of the mounting box (1); the heat dissipation mechanism (3) comprises a heat dissipation pipe (31), a heat dissipation groove (32), a shifting sheet (33), a rubber plate (34), a friction wheel (35), a sealing plate (36), a buffer cavity (37), an expansion bag (38) and a barrier film (39); the lower ends of the radiating pipes (31) are fixedly connected in the upper wall of the mounting box (1), the radiating pipes (31) penetrate through the upper wall of the mounting box (1), and the upper ends of the radiating pipes (31) are inserted in the wall of the buckling cover (2) in a sliding mode; a heat dissipation groove (32) is formed in the buckling cover (2), and the upper surface of the buckling cover (2) is arranged in an arc shape; two ends of the heat dissipation groove (32) penetrate through two ends of the buckling cover (2) to be communicated with the outside.
2. The waterproof and heat-dissipating device for the set-top box according to claim 1, wherein: the outer surfaces of two sides of the upper end of the radiating pipe (31) are fixedly connected with shifting pieces (33); the shifting piece (33) is made of elastic metal materials, the upper end of the shifting piece (33) is horizontally inserted into the wall of the buckling cover (2), and the lower end of the shifting piece (33) is arranged in the heat dissipation groove (32).
3. The waterproof and heat-dissipating device for the set-top box according to claim 2, wherein: the upper end of the shifting sheet (33) is horizontally in friction contact with a rubber plate (34); the rubber plates (34) are symmetrically arranged above two sides of the radiating pipe (31), and friction wheels (35) are uniformly and rotatably connected inside the rubber plates (34); the lower end of the friction wheel (35) is in friction contact with the shifting sheet (33).
4. The waterproof and heat-dissipating device for the set-top box according to claim 3, wherein: the friction wheel (35) is hollow, the outer wall of the friction wheel (35) is a rubber wall, supporting rods are uniformly arranged in the friction wheel (35), and sealing plates (36) are uniformly and symmetrically fixedly connected to the inner surface of the friction wheel (35); the sealing plates (36) are arranged in pairs into a group, the sealing plates (36) are made of steel materials, the inner side cavity of each group of sealing plates (36) is communicated with the buffer cavity (37), and expansion bags (38) are uniformly arranged between each group of sealing plates (36); the buffer cavity (37) is arranged above the radiating pipe (31); the expansion bag (38) is fixedly arranged in the outer wall of the friction wheel (35), and a barrier film (39) is fixedly connected inside the expansion bag (38); the inner side cavity of the barrier film (39) is communicated with the cavity between the sealing plates (36), and the inner part of the outer side cavity of the barrier film (39) is filled with non-Newtonian fluid.
5. The waterproof and heat-dissipating device for the set-top box according to claim 1, wherein: the ventilation mechanism (4) comprises a pull rope (41), a dislocation plate (42), a sliding chute (43), dislocation holes (44), ventilation holes (45), a filter screen plate (46) and bristles (47); the pull ropes (41) are symmetrically and movably arranged in the wall of the mounting box (1), the upper ends of the pull ropes (41) are symmetrically and fixedly connected to the lower surfaces of the two ends of the buckling cover (2), and the lower ends of the pull ropes (41) are fixedly connected to the outer ends of the dislocation plates (42); the dislocation plate (42) is symmetrically and elastically installed in a lower wall sliding groove (43) of the installation box (1) in a sliding mode, and dislocation holes (44) are uniformly formed in the dislocation plate (42); the dislocation hole (44) and the air hole (45) are arranged in a dislocation way at the beginning; the air holes (45) are uniformly and symmetrically arranged in the lower wall of the mounting box (1), and the lower ends of the air holes (45) are fixedly provided with a filter screen plate (46); bristles (47) are uniformly and fixedly arranged on the lower surface of the dislocation plate (42); the bristles (47) are initially arranged opposite to the filter screen plate (46) at the lower end of the air hole (45).
6. The waterproof and heat-dissipating device for the set-top box according to claim 5, wherein: the bristles (47) are arranged obliquely initially, and the inclined directions of the bristles (47) are inclined towards the left side and the right side of the mounting box (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110680569.7A CN113395557A (en) | 2021-06-18 | 2021-06-18 | Waterproof heat dissipation device for set top box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110680569.7A CN113395557A (en) | 2021-06-18 | 2021-06-18 | Waterproof heat dissipation device for set top box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113395557A true CN113395557A (en) | 2021-09-14 |
Family
ID=77623007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110680569.7A Withdrawn CN113395557A (en) | 2021-06-18 | 2021-06-18 | Waterproof heat dissipation device for set top box |
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| Country | Link |
|---|---|
| CN (1) | CN113395557A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114554745A (en) * | 2021-12-15 | 2022-05-27 | 艾迪恩(山东)科技有限公司 | Protector for electronic communication |
-
2021
- 2021-06-18 CN CN202110680569.7A patent/CN113395557A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114554745A (en) * | 2021-12-15 | 2022-05-27 | 艾迪恩(山东)科技有限公司 | Protector for electronic communication |
| CN114554745B (en) * | 2021-12-15 | 2023-11-24 | 鲁东大学 | Protective device for electronic communication |
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Application publication date: 20210914 |
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