Temperature control device for digital television
Technical Field
The utility model relates to a digital television technical field specifically says the temperature control device that digital television used.
Background
Digital television refers to a brand new television system which uses digital television signals or processes and modulates the digital television signals in all links from a studio to transmission, transmission and reception, and all signal transmission of the system is transmitted through digital streams formed by 0 and 1 digital strings, so that the high definition of the digital television is ensured, and the inherent defects of an analog television are overcome.
Chinese patent application No. CN201710575002.7 discloses a television, which comprises a television body and a base with a containing cavity, wherein the television body is connected with the base, and a mainboard, a power supply and a sound box are arranged in the containing cavity. According to the invention, the main devices such as the television main board, the power supply and the sound box are arranged in the base, so that the structure of the television body is simplified, the television body is thinned, and the appearance design space of the television body is increased.
The above document has the following problems:
(1) When the television is used, internal circuit components can generate a large amount of heat, temperature control measures for the television in the application document are lacked, and the circuit components are easy to burn.
(2) Because the heat dissipation needs the TV to form the passageway with outside air, get into dust and steam easily in the heat dissipation in-process passageway, steam causes corresponding potential safety hazard easily, and the security is not good enough.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a temperature control device that digital television used to solve the problem that proposes among the above-mentioned background art.
The technical scheme of the utility model is that: the temperature control device for the digital television comprises a housing, wherein a heat dissipation assembly is arranged inside the housing, the heat dissipation assembly comprises a motor, an output end of the motor is connected with a threaded rod, one end of the threaded rod is rotatably connected with the inner side wall of the housing, a movable plate is sleeved at the middle position outside the threaded rod, the top end of the movable plate is connected with an upper sliding plate, the bottom end of the movable plate is equally connected with a plurality of fans, first bevel gears are symmetrically sleeved at two ends outside the threaded rod, a supporting plate is symmetrically connected with the inner side wall of the housing, a threaded column is connected to the top end of the supporting plate in a penetrating mode and rotatably connected with the supporting plate through a bearing, a second bevel gear is sleeved at the top end outside the threaded column and meshed with the first bevel gears, a side sliding plate is sleeved at the lower end outside the threaded column and is in threaded connection with the threaded column, ventilation grooves are formed in the top end and two sides of the housing, and ventilation grooves are formed in one end of the side sliding plate and one end of the upper sliding plate.
Furthermore, the inside wall symmetry of casing is connected with the gag lever post, the outside of gag lever post is located to the side slide cover to be sliding connection.
Furthermore, the bottom end of the threaded column is connected with a sleeve block, the side sliding plate is abutted against the inner side wall of the casing, and the upper sliding plate is abutted against the inner top wall of the casing.
Further, the top and the both sides of casing all are provided with dampproofing dustproof subassembly, dampproofing dustproof subassembly includes the screen frame, the screen frame is inserted and is located the top of casing, the interior roof of screen frame has the fixture block through spring coupling, the top through connection of casing presses the briquetting, and is I-shaped according to the briquetting.
Furthermore, the top of screen frame is provided with a plurality of dust filter nets and drier to be the interval setting, the size of dust filter net is equal to the size of casing ventilation groove, the width of drier is equal to the clearance of two adjacent ventilation grooves of casing.
Furthermore, the inside wall of casing is connected with temperature sensor and singlechip, the singlechip all is electric connection with fan, motor and temperature sensor.
The utility model discloses an improve the temperature control device that provides digital television here and use, compare with prior art, have following improvement and advantage:
one is as follows: the utility model discloses a dislocation formula ventilation groove, according to the inside temperature variation of digital television, corresponding control heat dissipation ventilation efficiency has effectively avoided arousing burning out of circuit components and parts because of high temperature, has prolonged the life of equipment.
The second step is as follows: the utility model discloses a detachable screen frame's dirt screen and drier, dust and steam to the heat dissipation in-process carry out the separation, and clear up and change convenient and fast, avoid the dust to block up the influence heat dissipation, avoid steam to get into simultaneously and lead to taking place potential safety hazards such as electric leakage, improve equipment security.
Drawings
The invention is further explained below with reference to the figures and examples:
FIG. 1 is a schematic view of the front cross-sectional structure of the present invention;
FIG. 2 is a schematic view of the partial side view cross-sectional structure of the present invention;
FIG. 3 is an enlarged view of area A in FIG. 1;
fig. 4 is a schematic structural view of the screen frame of the present invention.
Description of the reference numerals: 1. a housing; 2. a heat dissipating component; 21. a limiting rod; 22. a side slide; 23. a fan; 24. moving the plate; 25. an upper slide plate; 26. a threaded rod; 27. a first bevel gear; 28. a motor; 29. a second bevel gear; 210. a support plate; 211. a threaded post; 3. a temperature sensor; 4. a single chip microcomputer; 5. A moisture and dust resistant assembly; 51. a pressing block; 52. a clamping block; 53. a screen frame; 531. a dust filter screen; 532. a desiccant.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings 1 to 4, which clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
The utility model provides a temperature control device for digital television through improving here, as shown in fig. 1-4, including casing 1, the inside of casing 1 is provided with radiator unit 2, radiator unit 2 includes motor 28, the output of motor 28 is connected with threaded rod 26, and threaded rod 26's one end is in rotating connection with casing 1 inside wall, the intermediate position cover outside threaded rod 26 is equipped with movable plate 24, the top of movable plate 24 is connected with upper sliding plate 25, the bottom halving of movable plate 24 is connected with a plurality of fans 23, the both ends symmetry cover outside threaded rod 26 is equipped with first bevel gear 27, the inside wall symmetry of casing 1 is connected with backup pad 210, the top of backup pad 210 runs through and is connected with screw thread post 211, and screw thread post 211 passes through bearing rotation with backup pad 210 and is connected, the top cover outside screw thread post 211 is equipped with second bevel gear 29, the second bevel gear 29 is engaged with the first bevel gear 27, the lower end of the outer portion of the threaded column 211 is sleeved with a side sliding plate 22, the side sliding plate 22 is in threaded connection with the threaded column 211, the inner side wall of the casing 1 is symmetrically connected with a limiting rod 21, the side sliding plate 22 is sleeved on the outer portion of the limiting rod 21 and is in sliding connection, so that the limiting rod 21 is matched with the threaded column 211 to limit the side sliding plate 22 in the vertical direction, the top end and the two sides of the casing 1 are both provided with ventilation grooves, the two side sliding plates 22 and one end of the upper sliding plate 25 are both provided with ventilation grooves, the bottom end of the threaded column 211 is connected with a sleeve block, the side sliding plate 22 is abutted with the inner side wall of the casing 1, the upper sliding plate 25 is abutted with the inner top wall of the casing 1, and the displacement distance of the side sliding plate 22 is limited by the sleeve block at the bottom of the threaded column 211, and the side sliding plate 22 and the upper sliding plate 25 are axially limited by the abutting characteristic of the side sliding plate 22 and the upper sliding plate 25 with the machine shell 1, so that the side sliding plate 22 and the upper sliding plate 25 are correspondingly displaced under the thread driving acting force of the corresponding thread column 211 and the thread rod 26, the top end and two sides of the casing 1 are provided with moisture-proof and dust-proof components 5, the moisture-proof and dust-proof components 5 comprise a filter screen frame 53, the filter screen frame 53 is inserted into the top end of the machine shell 1, the inner top wall of the filter screen frame 53 is connected with a clamping block 52 through a spring, the top end of the machine shell 1 is connected with a pressing block 51 in a penetrating way, and the pressing block 51 is in an I shape, pressing the I-shaped pressing block 51 can act on the fixture block 52, so that the fixture block 52 is received in the filter screen frame 53, and the filter screen frame 53 is drawn out for cleaning and replacement, the top end of the filter screen frame 53 is provided with a plurality of dust filter screens 531 and drying agents 532, the dust filter 531 is equal to the ventilation slots of the machine case 1 in size, the drying agent 532 is equal to the gap between two adjacent ventilation slots of the machine case 1 in width, thereby ensuring normal air circulation of the ventilation slot of the machine shell 1 by using the dust filtering net 531, absorbing moisture in the air by using the drying agent 532, being convenient to install and disassemble and clean, thereby ensuring the normal ventilation and heat dissipation of the equipment and simultaneously playing the role of moisture protection and dust prevention, the inner side wall of the machine shell 1 is connected with a temperature sensor 3 (model DS18B 20) and a singlechip 4 (model STM32F103R8T 6), the single chip microcomputer 4 is electrically connected with the fan 23, the motor 28 and the temperature sensor 3, the temperature sensor 3 is used for detecting the temperature change in the television shell 1 in real time, corresponding data are transmitted to the single chip microcomputer 4, when the temperature is higher, the motor 28 and the fan 23 are controlled to be started, and the ventilation and heat dissipation efficiency is enhanced.
The working principle is as follows: when the digital television starts to work, the temperature sensor 3 is used for detecting the temperature change in the shell 1 in real time, corresponding data are transmitted to the single chip microcomputer 4, when the temperature is high, the fan 23 and the motor 28 are controlled to be started, the motor 28 drives the threaded rod 26 to rotate, under the axial limiting acting force generated by the abutting of the upper sliding plate 25 and the shell 1 and the thread driving acting force generated by the rotation of the threaded rod 26, the moving plate 24 horizontally displaces until the upper sliding plate 25 and the top ventilation groove of the shell 1 are in the same vertical plane to form a through channel, the threaded rod 26 drives the first bevel gear 27 to rotate, the second bevel gear 29 meshed with the first bevel gear 29 drives the threaded rod 211 to rotate, under the axial limiting of the abutting of the side sliding plate 22 and the shell 1 and the vertical limiting of the limiting rod 21, the side sliding plate 22 vertically displaces by the thread driving acting force generated by the rotation of the threaded rod 211 until the side sliding plate 22 and the ventilation groove on the side wall of the shell 1 are in the same horizontal plane to form a through channel, the fan 23 drives hot air in the shell 1 to upwards flow and discharge from the top ventilation groove, and discharge the external air from the ventilation grooves on the two sides of the shell 1, the filter screen rack 52 is replaced, the filter screen rack 52, and the dust filter is replaced by the air, and the dust filter, the dust filter is blocked, and the dust filter 53, and the dust filter block 532, and the dust filter is blocked.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.