CN118055279B - Multimedia video television box with integrated circuit - Google Patents
Multimedia video television box with integrated circuit Download PDFInfo
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- CN118055279B CN118055279B CN202410449059.2A CN202410449059A CN118055279B CN 118055279 B CN118055279 B CN 118055279B CN 202410449059 A CN202410449059 A CN 202410449059A CN 118055279 B CN118055279 B CN 118055279B
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- 238000002347 injection Methods 0.000 claims abstract description 87
- 239000007924 injection Substances 0.000 claims abstract description 87
- 238000001816 cooling Methods 0.000 claims abstract description 65
- 238000012545 processing Methods 0.000 claims abstract description 27
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000741 silica gel Substances 0.000 claims abstract description 10
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 50
- 238000006243 chemical reaction Methods 0.000 claims description 39
- 230000006835 compression Effects 0.000 claims description 19
- 238000007906 compression Methods 0.000 claims description 19
- 238000003780 insertion Methods 0.000 claims description 18
- 230000037431 insertion Effects 0.000 claims description 18
- 238000003825 pressing Methods 0.000 claims description 18
- 239000000428 dust Substances 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 4
- 239000003990 capacitor Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 206010063385 Intellectualisation Diseases 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a multimedia video television box with an integrated circuit, which comprises a box body, a main control circuit board, an interface, a mounting groove, an external circuit board, a cooling body, a processing chip, silica gel, a heat conducting sheet, an embedded unit and an air injection unit. The invention has the advantages that: the single circuit board in the prior art is divided into an independent external circuit board and a main control circuit board, a processing chip and related fragile electronic components in the integrated circuit are arranged on the external circuit board, and the rest electronic components are arranged on the main control circuit board, so that when a bonding pad of the processing chip is replaced and falls off, only the new external circuit board is needed to be replaced, and the situation that the external circuit board and the main control circuit board are scrapped together is effectively avoided; the external circuit board has the advantage of convenient installation/disassembly; the cooling body can cool the processing chip on the external circuit board; the embedded unit is used for fixing the external circuit board, and the air injection unit not only can provide driving force for the embedded unit, but also can inject cold air for the cooling body.
Description
Technical Field
The invention relates to the field of electrical equipment, in particular to a multimedia video television box with an integrated circuit.
Background
The television box is an external television receiving box which is convenient to install and supports plug and play. The programs watched by the traditional television are fixed and cannot access the Internet, and have no loadable content and application. However, the intellectualization of the television can be realized by connecting the traditional television with the television box. The television box not only has the basic functions of receiving television channels and playing VCD of the television set-top box, but also has the advantages of multi-picture display of images, convenient and flexible operation, clear images and the like. Meanwhile, the function of the computer can be flexibly switched, so that the computer resource can be fully utilized. The integrated circuit is configured in the television box by arranging a circuit board, and the television box has the following defects in the actual use process: ① The circuit board provided with the integrated circuit can generate a large amount of heat when in use, and the electronic element is easy to burn out; burn-out is very likely to occur especially for processing chips. ② When the processing chip burns out or the related fragile electronic components burns out, the defect of difficult later maintenance and replacement exists, and the reason is that the circuit board is fixed inside the television box, and the circuit board needs to be completely disassembled when the circuit board is disassembled, so that the method is very complicated; and when the processing chip or related electronic components are welded and replaced, the bonding pads are easy to fall off, so that the whole circuit board is scrapped. Therefore, it is necessary to optimize the processing chip and the related fragile electronic components in the integrated circuit to be configured on a detachable external circuit board, and the remaining electronic components to be configured on a main control circuit board inside the television box, so that the convenience of disassembling the external circuit board can be improved, and the situation that the external circuit board and the main control circuit board are scrapped together can be avoided. In addition, a cooling structure for cooling the external circuit board is required to be added to avoid overheat burning of the processing chip.
Disclosure of Invention
The invention aims to provide a multimedia video television box with an integrated circuit, which solves the problems in the background technology.
The technical aim of the invention is realized by the following technical scheme:
the multimedia video television box with the integrated circuit comprises a box body, wherein a main control circuit board is arranged in the box body, a plurality of interfaces are fixedly arranged at the rear end of the box body, and each interface is connected with the main control circuit board;
The right side of the box body is provided with a mounting groove, a transverse external circuit board is inserted into the mounting groove, and the external circuit board can form conductive insertion with the main control circuit board after being inserted into the mounting groove; a cooling body is fixedly arranged in the mounting groove, the cooling body is positioned above the external circuit board, at least a processing chip is arranged on the external circuit board, silica gel is coated on the processing chip, a heat conducting sheet is fixedly arranged on the silica gel, the heat conducting sheet is in heat conducting contact with the cooling body, and the cooling body is used for cooling the processing chip;
The mounting groove is also internally provided with an embedded unit used for fixing the external circuit board inserted into the mounting groove and an air injection unit used for providing driving force for the embedded unit, and the air injection unit can also be used for injecting cooling air for a cooling body.
The further arrangement is that: the installation groove in fixed be provided with fore-and-aft positioning baffle, external circuit board on the welding have a plurality of conductive bars of buckling to insert, the main control circuit board on the welding have a plurality of conductive bars seat, external circuit board insert in the installation groove after can offset with positioning baffle, and each conductive bar insert can insert in the conductive bars seat that corresponds respectively to constitute the conductive connection of external circuit board and main control circuit board.
The further arrangement is that: the external circuit board on the welding have highly uniform and all with the lower terminal surface of cooling body meet first backup pad and second backup pad, first backup pad be located the left side of second backup pad, the second backup pad can also play the dust blocking effect.
The further arrangement is that: the embedded unit is positioned below the external circuit board and comprises an embedded shell fixed in the mounting groove, a longitudinal inner cavity is formed in the embedded shell, a longitudinal sliding rod is slidably arranged in the longitudinal inner cavity, a fixing embedded block is fixedly arranged at the upper end of the longitudinal sliding rod, a positioning groove is formed in the lower end of the external circuit board, and when the external circuit board is inserted into the mounting groove and abutted against the positioning baffle, the fixing embedded block is positioned right below the positioning groove; the upper end of the longitudinal sliding rod is fixedly provided with a movable sleeve ring, the longitudinal inner cavity is fixedly provided with a fixed sleeve ring, the fixed sleeve ring is positioned below the movable sleeve ring, a compression spring is arranged between the fixed sleeve ring and the movable sleeve ring in an extruding mode, and the fixed insert is stably pushed upwards based on the compression spring; the fixed sleeve ring is internally provided with a bottom insertion block through threads, the bottom insertion block can extend into the lower end part of the compression spring, and a first inner hole for the longitudinal sliding rod to penetrate is formed in the bottom insertion block; the lower end of the movable lantern ring is fixedly provided with an extending section extending into the upper end part of the compression spring.
The further arrangement is that: the right side of the movable lantern ring is provided with a first step groove and a second step groove, the right side of the upper end of the longitudinal inner cavity is fixedly provided with an inner fixing block, and the inner fixing block can prop against the first step groove to limit and fix the embedded block; the second step groove is spaced from the inner fixing block to form a spacing cavity, and a first gas injection auxiliary hole communicated with the spacing cavity is formed in the right side of the embedded shell.
The further arrangement is that: the air injection unit is positioned on the right side of the embedded shell and comprises an air injection inner shell, a transverse inner cavity is formed in the air injection inner shell, a sealing seat is fixedly arranged at the right end of the transverse inner cavity, and an air injection inlet connected with the transverse inner cavity is formed in the sealing seat; the transverse inner cavity is provided with a transverse sliding rod in a sliding manner, the right end of the transverse sliding rod is fixedly provided with a right end block, the right end of the right end block is fixedly provided with a sealing pressing block, and the sealing seat is provided with a sealing surface which is adhered to the sealing pressing block; a stop block is fixedly arranged at the left end of the transverse inner cavity, and a second inner hole for the transverse sliding rod to penetrate is formed in the stop block; a reset spring is arranged between the stop block and the right end block in an extrusion mode, a sealing pressing block is stably pushed to the right based on the reset spring, and the sealing pressing block can prop against a sealing surface of the sealing seat to cut off the gas injection inlet and the transverse inner cavity;
an air injection gap is formed between the right end block and the inner wall of the transverse inner cavity, and a second air injection auxiliary hole communicated with the transverse inner cavity is formed in the upper end of the air injection inner shell.
The further arrangement is that: the sealing seat is internally provided with a rubber sealing ring connected with the sealing surface.
The further arrangement is that: an output conversion unit is arranged in the mounting groove and is positioned on the right side of the embedded shell and also positioned above the gas injection inner shell; the output conversion unit comprises a conversion inner shell, a transverse insertion cavity is formed among the embedded shell, the gas injection inner shell and the box body, and the conversion inner shell is inserted into the transverse insertion cavity; the inside of the conversion inner shell is provided with a first through hole, a second through hole, a third through hole and a fourth through hole which are sequentially communicated from left to right, the first through hole and the third through hole are transversely arranged, the second through hole and the fourth through hole are longitudinally arranged, and the second through hole penetrates through the upper end and the lower end of the conversion inner shell; one part of the conversion inner shell is a contact end, and the fourth through hole is connected with the contact end; an inner through hole is formed in the box body and extends to the right end face of the conversion inner shell; the cooling body is a square pipe fitting, a cooling inner cavity is formed in the cooling body, and the inner through hole is connected with the cooling inner cavity through an outer guide pipe;
when the contact end of the conversion inner shell is attached to the gas injection inner shell, the second through hole is connected with the second gas injection auxiliary hole, the first through hole is connected with the first gas injection auxiliary hole, and the inner through hole is cut off; when the other end of the conversion inner shell is attached to the gas injection inner shell compared with the other end of the contact end, the second through hole is connected with the second gas injection auxiliary hole, the fourth through hole is connected with the inner through hole, and the first gas injection auxiliary hole is cut off.
The further arrangement is that: the cooling body is fixedly provided with a control valve connected with the cooling inner cavity, and the cooling inner cavity is exhausted through the control valve.
The invention has the beneficial effects that:
1. In the invention, a single circuit board in the prior art is divided into an external circuit board and a main control circuit board, a processing chip and related fragile electronic components in an integrated circuit are arranged on the external circuit board, and the rest electronic components are arranged on the main control circuit board; the main control circuit board is fixed in the box body and connected with the interfaces, and the external circuit board is detachably inserted in the mounting groove; when the bonding pad falls off during the replacement of the processing chip, only the new external circuit board needs to be replaced, and the situation that the external circuit board and the main control circuit board are scrapped together is effectively avoided. In addition, the processing chip on the external circuit board is cooled by arranging the cooling body in the mounting groove, and the silica gel and the heat conducting sheet can play a role in heat conduction. The embedded unit is used for fixing the external circuit board inserted into the mounting groove; the air injection unit not only can provide driving force for the embedded unit, but also can inject cooling air for the cooling body.
2. In the invention, the external circuit board is limited by the positioning baffle plate against the external circuit board, and the conductive socket can form conductive plug-in connection.
3. In the invention, the first support plate and the second support plate can be propped against the cooling body to limit the external circuit board, and the second support plate can also play a role in keeping dust and prevent dust from falling onto electronic elements of the external circuit board.
4. The embedded shell in the embedded unit is used for placing the longitudinal slide bar, the longitudinal slide bar can stably move upwards under the pushing of the compression spring, the movable lantern ring and the fixed lantern ring are arranged for extruding the compression spring, the fixed embedded block at the upper end of the longitudinal slide bar can extend upwards into the positioning groove of the external circuit board under the pushing of the compression spring, and then the purpose of locking the external circuit board is achieved; the bottom insert block and the extending section are used for limiting the compression spring.
5. According to the invention, the first step groove can be propped against the inner fixing embedded block at the upper end of the longitudinal inner cavity to prevent the longitudinal sliding rod from falling out, the second step groove can be matched with the inner fixing block to form the spacing cavity, the first air injection auxiliary hole is always communicated with the spacing cavity, the first air injection auxiliary hole is used for injecting cold air into the spacing cavity, the cold air injected into the spacing cavity can drive the longitudinal sliding rod and the fixing embedded block to synchronously move downwards, so that the fixing embedded block is separated from the positioning groove, and the external circuit board is convenient to detach.
6. In the invention, the gas injection inner shell in the gas injection unit is used for placing the transverse slide bar, the transverse inner cavity is provided with the sealing seat, the gas injection inlet in the sealing seat plays a role of injecting gas into the transverse inner cavity, and the sealing pressing block at the right end of the transverse slide bar can be propped against the sealing seat, so that the gas injection inlet can be cut off in a normal state; the arrangement of the gas injection gap and the second gas injection auxiliary hole is used for guiding gas, and the cold gas injected from the gas injection inlet can push the sealing pressing block to be separated from the sealing seat, and then the cold gas sequentially passes through the gas injection gap and the transverse inner cavity and is assisted Kong Songchu by the second gas injection.
7. According to the invention, the arrangement of the rubber sealing ring can improve the tightness between the sealing pressing block and the sealing seat.
8. In the invention, the conversion inner shell in the output conversion unit is inserted in the transverse insertion cavity, the channel can be switched by turning the conversion inner shell by 180 degrees, the output path of the gas injection unit can be switched based on the channel switching, the cold gas output by the gas injection unit can be led to the embedded unit or the cooling inner cavity, the switching output of the double ports can be realized by the single-port input, and the structure is effectively optimized.
9. The control valve can conveniently cool the inner cavity to exhaust.
Drawings
FIG. 1 is a schematic diagram of an embodiment;
Fig. 2 is an enlarged view of a portion a in fig. 1;
fig. 3 is an enlarged view of a portion B in fig. 2;
Fig. 4 is an enlarged view of a portion C in fig. 2.
In the figure: 11. a case body; 12. a main control circuit board; 13. an interface; 21. a mounting groove; 22. an external circuit board; 221. a positioning groove; 23. a processing chip; 24. silica gel; 25. a heat conductive sheet; 26. an electrolytic capacitor; 31. a cooling body; 311. cooling the inner cavity; 32. positioning a baffle; 33. a conductive extension socket; 34. a conductive bar seat; 41. a first support plate; 42. a second support plate; 51. an embedded housing; 52. a longitudinal lumen; 53. a longitudinal slide bar; 54. fixing the insert; 55. a movable collar; 551. a stretch-in section; 56. a fixed collar; 57. a compression spring; 58. a bottom insert; 60. an inner fixing block; 61. a first stepped groove; 62. a second stepped groove; 63. a compartment; 64. a first gas injection auxiliary hole; 71. an air injection inner shell; 72. a transverse lumen; 73. a sealing seat; 731. sealing surfaces; 732. a rubber seal ring; 74. a gas injection inlet; 751. a transverse slide bar; 752. a right end block; 753. sealing and pressing blocks; 76. a stop block; 77. a return spring; 78. an air injection gap; 79. a second gas injection auxiliary hole; 801. converting the inner shell; 802. a transverse insertion cavity; 81. a first through hole; 82. a second through hole; 83. a third through hole; 84. a fourth through hole; 91. an inner through hole; 92. an outer conduit; 93. and a control valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 4;
the embodiment discloses a multimedia video television box with an integrated circuit, which comprises a box body 11, wherein a main control circuit board 12 is arranged in the box body 11, a plurality of interfaces 13 are fixedly arranged at the rear end of the box body 11, and each interface 13 is connected with the main control circuit board 12;
The right side of the box body 11 is provided with a mounting groove 21, a transverse external circuit board 22 is inserted into the mounting groove 21, and the external circuit board 22 can form conductive insertion with the main control circuit board 12 after being inserted into the mounting groove 21; a cooling body 31 is fixedly arranged in the mounting groove 21, the cooling body 31 is positioned above the external circuit board 22, at least a processing chip 23 is arranged on the external circuit board 22, silica gel 24 is coated on the processing chip 23, a heat conducting sheet 25 is fixedly arranged on the silica gel 24, the heat conducting sheet 25 is in heat conducting contact with the cooling body 31, and the cooling body 31 is used for cooling the processing chip 23;
the mounting groove 21 is further provided therein with an embedded unit for fixing the external circuit board 22 inserted into the mounting groove 21, and an air injection unit for supplying driving force to the embedded unit, and the air injection unit is also capable of injecting cooling air for the cooling body 31.
The mounting groove 21 is fixedly provided with a longitudinal positioning baffle 32, the external circuit board 22 is welded with a plurality of bent conductive strip inserts 33, the main control circuit board 12 is welded with a plurality of conductive strip seats 34, the external circuit board 22 can be abutted against the positioning baffle 32 after being inserted into the mounting groove 21, and each conductive strip insert 33 can be respectively inserted into the corresponding conductive strip seat 34 so as to form conductive connection between the external circuit board 22 and the main control circuit board 12.
Wherein, the external circuit board 22 is welded with a first support plate 41 and a second support plate 42 which are consistent in height and are connected with the lower end face of the cooling body 31, the first support plate 41 is positioned at the left side of the second support plate 42, and the second support plate 42 can also play a role of dust blocking.
The embedded unit is located below the external circuit board 22, the embedded unit comprises an embedded shell 51 fixed in the mounting groove 21, a longitudinal inner cavity 52 is formed in the embedded shell 51, a longitudinal sliding rod 53 is slidably arranged in the longitudinal inner cavity 52, a fixing embedded block 54 is fixedly arranged at the upper end of the longitudinal sliding rod 53, a positioning groove 221 is formed in the lower end of the external circuit board 22, and when the external circuit board 22 is inserted into the mounting groove 21 to abut against the positioning baffle 32, the fixing embedded block 54 is located right below the positioning groove 221; the upper end of the longitudinal slide bar 53 is fixedly provided with a movable sleeve ring 55, a fixed sleeve ring 56 is fixedly arranged in the longitudinal inner cavity 52, the fixed sleeve ring 56 is positioned below the movable sleeve ring 55, a compression spring 57 is arranged between the fixed sleeve ring 56 and the movable sleeve ring 55 in a squeezing mode, and the fixed insert 54 is stably pushed upwards based on the compression spring 57; the fixed collar 56 is internally provided with a bottom insert block 58 through threads, the bottom insert block 58 can extend into the lower end part of the compression spring 57, and a first inner hole for the longitudinal sliding rod 53 to penetrate is formed in the bottom insert block 58; the lower end of the movable collar 55 is fixedly provided with an insertion section 551 inserted into the upper end of the compression spring 57.
Wherein, the right side of the movable lantern ring 55 is provided with a first step groove 61 and a second step groove 62, the right side of the upper end of the longitudinal inner cavity 52 is fixedly provided with an inner fixing block 60, and the inner fixing block 60 can prop against the first step groove 61 to limit the fixing insert 54; the second stepped groove 62 is spaced from the inner fixing block 60 to form a space 63, and a first auxiliary gas injection hole 64 communicating with the space 63 is formed on the right side of the inner housing 51.
The air injection unit is positioned on the right side of the embedded shell 51, and comprises an air injection inner shell 71, a transverse inner cavity 72 is formed in the air injection inner shell 71, a sealing seat 73 is fixedly arranged at the right end of the transverse inner cavity 72, and an air injection inlet 74 connected with the transverse inner cavity 72 is formed in the sealing seat 73; a transverse sliding rod 751 is arranged in the transverse inner cavity 72 in a sliding manner, a right end block 752 is fixedly arranged at the right end of the transverse sliding rod 751, a sealing pressing block 753 is fixedly arranged at the right end of the right end block 752, and a sealing face 731 which is attached to the sealing pressing block 753 is arranged on the sealing seat 73; a stop block 76 is fixedly arranged at the left end of the transverse inner cavity 72, and a second inner hole for the transverse slide bar 751 to penetrate is formed in the stop block 76; a return spring 77 is arranged between the stop block 76 and the right end block 752 in a pressing manner, a sealing pressing block 753 is pushed to the right based on the return spring 77, and the sealing pressing block 753 can abut against a sealing surface 731 of the sealing seat 73 to cut off the gas injection inlet 74 and the transverse inner cavity 72;
an air injection gap 78 is arranged between the right end block 752 and the inner wall of the transverse inner cavity 72, and a second air injection auxiliary hole 79 communicated with the transverse inner cavity 72 is formed at the upper end of the air injection inner shell 71.
A rubber seal 732 is provided in the seal seat 73 and contacts the seal surface 731.
Wherein, the installation groove 21 is also provided with an output conversion unit which is positioned on the right side of the embedded shell 51 and is also positioned above the gas injection inner shell 71; the output conversion unit comprises a conversion inner shell 801, a transverse insertion cavity 802 is formed among the embedded shell 51, the gas injection inner shell 71 and the box body 11, and the conversion inner shell 801 is inserted into the transverse insertion cavity 802; the inside of the conversion inner shell 801 is provided with a first through hole 81, a second through hole 82, a third through hole 83 and a fourth through hole 84 which are sequentially communicated from left to right, the first through hole 81 and the third through hole 83 are transversely arranged, the second through hole 82 and the fourth through hole 84 are longitudinally arranged, and the second through hole 82 penetrates through the upper end and the lower end of the conversion inner shell 801; converting a portion of inner shell 801 to a contact end, fourth through-hole 84 being connected to the contact end; an inner through hole 91 is formed in the box body 11, and the inner through hole 91 extends to the right end face of the conversion inner shell 801; the cooling body 31 is a square pipe fitting, a cooling inner cavity 311 is formed in the cooling body 31, and an inner through hole 91 is connected with the cooling inner cavity 311 through an outer conduit 92;
When the contact end of the conversion inner case 801 is attached to the gas injection inner case 71, the second through hole 82 is connected to the second gas injection auxiliary hole 79, the first through hole 81 is connected to the first gas injection auxiliary hole 64, and the inner through hole 91 is cut off; when the other end of the conversion inner case 801 is attached to the gas injection inner case 71 as compared with the contact end, the second through hole 82 is connected to the second gas injection auxiliary hole 79, the fourth through hole 84 is connected to the inner through hole 91, and the first gas injection auxiliary hole 64 is cut off.
The cooling body 31 is fixedly provided with a control valve 93 connected to the cooling chamber 311, and the cooling chamber 311 is exhausted by the control valve 93.
In this embodiment, two electrolytic capacitors 26 are further disposed on the external circuit board 22, and the two electrolytic capacitors 26 are also disposed with a silica gel 24 and a heat conducting fin 25; the heat conducting fin 25 on the processing chip 23 and the electrolytic capacitor 26 are attached to the cooling body 31; the model of the processing chip 23 can be a single chip microcomputer.
The working principle of the embodiment is as follows:
① Before the external circuit board 22 is mounted; first, the conversion inner shell 801 is inserted into the horizontal insertion cavity 802, the contact end of the conversion shell will be attached to the gas injection inner shell 71, at this time, the second through hole 82 is connected to the second gas injection auxiliary hole 79, the first through hole 81 is connected to the first gas injection auxiliary hole 64, and the internal through hole 91 is cut off.
② The air generated by the air-conditioning generating device is injected into the air-injecting inlet 74 by the air pump, then the air pushes the sealing pressing block 753 to be separated from the sealing seat 73, then the air is continuously injected, and is sequentially output from the second air-injecting auxiliary hole 79 after passing through the air-injecting gap 78 and the transverse inner cavity 72, then the air is injected into the spacing cavity 63 after passing through the second through hole 82, the first through hole 81 and the first air-injecting auxiliary hole 64, the air injected into the spacing cavity 63 can drive the longitudinal sliding rod 53 and the fixing embedding block 54 to synchronously move downwards, the fixing embedding block 54 is hidden in the longitudinal inner cavity 52, the external circuit board 22 is prevented from being inserted into the mounting groove 21, and the external circuit board 22 can be inserted into the position against the positioning baffle 32.
③ Pulling out the conversion inner case 801, cool air is pushed out from the first air injection auxiliary hole 64 by the urging of the compression spring 57; meanwhile, the fixing insert 54 is inserted into the positioning groove 221 of the external circuit board 22 under the pushing of the compression spring 57, so as to fix the external circuit board 22.
④ The conversion inner shell 801 is turned 180 degrees and then inserted into the transverse insertion cavity 802, at this time, the cold air output from the second air injection auxiliary hole 79 is sequentially introduced into the inner through hole 91 after passing through the second through hole 82, the third through hole 83 and the fourth through hole 84, and then is injected into the cooling inner cavity 311 through the outer conduit 92, so that the cold air in the cooling inner cavity 311 can effectively cool the processing chip 23, and high-temperature burning of the processing chip 23 is avoided.
⑤ When the temperature of the cold air in the cooling cavity 311 is increased and the cooling effect cannot be achieved, the control valve 93 is opened to discharge the cold air in the cooling cavity 311, so that the subsequent new cold air is conveniently refilled.
⑥ It should be noted that, a temperature sensor can be disposed in the cooling cavity 311 to detect the temperature of the cold air in the cooling cavity 311, so as to realize automatic control and provide a basis for subsequent intellectualization.
⑦ The external circuit board 22 is disassembled to maintain and replace the processing chip 23 or the electronic element on the external circuit board 22; extracting the conversion inner shell 801, then overturning the conversion inner shell 801 by 180 degrees again, inserting the conversion inner shell 801 into the transverse insertion cavity 802, connecting the second through hole 82 with the second gas injection auxiliary hole 79, connecting the first through hole 81 with the first gas injection auxiliary hole 64, and cutting off the inner through hole 91; at this time, the cold air injected from the air injection inlet 74 can be introduced into the space 63, and then the fixed insert 54 is pushed to move downward synchronously, so that the fixed insert 54 is separated from the positioning groove 221, and the external circuit board 22 is pulled out.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Claims (4)
1. The multimedia video television box with the integrated circuit comprises a box body (11), wherein a main control circuit board (12) is arranged in the box body (11), a plurality of interfaces (13) are fixedly arranged at the rear end of the box body (11), and each interface (13) is connected with the main control circuit board (12); the method is characterized in that:
The right side of the box body (11) is provided with a mounting groove (21), a transverse external circuit board (22) is inserted into the mounting groove (21), and the external circuit board (22) can form conductive insertion with the main control circuit board (12) after being inserted into the mounting groove (21); a cooling body (31) is fixedly arranged in the mounting groove (21), the cooling body (31) is positioned above the external circuit board (22), at least a processing chip (23) is arranged on the external circuit board (22), silica gel (24) is coated on the processing chip (23), a heat conducting sheet (25) is fixedly arranged on the silica gel (24), the heat conducting sheet (25) is in heat conducting contact with the cooling body (31), and the cooling body (31) is used for cooling the processing chip (23);
An embedded unit for fixing an external circuit board (22) inserted into the mounting groove (21) and an air injection unit for providing driving force for the embedded unit are also arranged in the mounting groove (21), and the air injection unit can also inject cooling air for the cooling body (31);
The mounting groove (21) is internally and fixedly provided with a longitudinal positioning baffle (32), a plurality of bent conductive strip inserts (33) are welded on the external circuit board (22), a plurality of conductive strip seats (34) are welded on the main control circuit board (12), the external circuit board (22) can be propped against the positioning baffle (32) after being inserted into the mounting groove (21), and the conductive strip inserts (33) can be respectively inserted into the corresponding conductive strip seats (34) to form conductive connection between the external circuit board (22) and the main control circuit board (12);
The external circuit board (22) is welded with a first supporting plate (41) and a second supporting plate (42) which are consistent in height and are connected with the lower end face of the cooling body (31), the first supporting plate (41) is positioned on the left side of the second supporting plate (42), and the second supporting plate (42) can also play a dust blocking role;
The embedded unit is located below the external circuit board (22), the embedded unit comprises an embedded shell (51) fixed in the mounting groove (21), a longitudinal inner cavity (52) is formed in the embedded shell (51), a longitudinal sliding rod (53) is arranged in the longitudinal inner cavity (52) in a sliding mode, a fixing embedded block (54) is fixedly arranged at the upper end of the longitudinal sliding rod (53), a positioning groove (221) is formed in the lower end of the external circuit board (22), and after the external circuit board (22) is inserted into the mounting groove (21) to abut against the positioning baffle (32), the fixing embedded block (54) is located right below the positioning groove (221); the upper end of the longitudinal sliding rod (53) is fixedly provided with a movable sleeve ring (55), the longitudinal inner cavity (52) is fixedly provided with a fixed sleeve ring (56), the fixed sleeve ring (56) is positioned below the movable sleeve ring (55), a compression spring (57) is arranged between the fixed sleeve ring (56) and the movable sleeve ring (55) in an extruding mode, and the fixed insert (54) is stably pushed upwards based on the compression spring (57); the fixing collar (56) is internally provided with a bottom insert block (58) through threads, the bottom insert block (58) can extend into the lower end part of the compression spring (57), and a first inner hole for the longitudinal sliding rod (53) to penetrate is formed in the bottom insert block (58); the lower end of the movable lantern ring (55) is fixedly provided with an extending section (551) extending into the upper end part of the compression spring (57);
A first step groove (61) and a second step groove (62) are formed in the right side of the movable sleeve ring (55), an inner fixing block (60) is fixedly arranged on the right side of the upper end of the longitudinal inner cavity (52), and the inner fixing block (60) can abut against the first step groove (61) to limit and fix the embedded block (54); a space is formed between the second step groove (62) and the inner fixed block (60) to form a spacing cavity (63), and a first gas injection auxiliary hole (64) communicated with the spacing cavity (63) is formed on the right side of the embedded shell (51);
The air injection unit is positioned on the right side of the embedded shell (51), the air injection unit comprises an air injection inner shell (71), a transverse inner cavity (72) is formed in the air injection inner shell (71), a sealing seat (73) is fixedly arranged at the right end of the transverse inner cavity (72), and an air injection inlet (74) connected with the transverse inner cavity (72) is formed in the sealing seat (73); a transverse sliding rod (751) is arranged in the transverse inner cavity (72) in a sliding manner, a right end block (752) is fixedly arranged at the right end of the transverse sliding rod (751), a sealing pressing block (753) is fixedly arranged at the right end of the right end block (752), and a sealing surface (731) which is adhered to the sealing pressing block (753) is arranged on the sealing seat (73); a stop block (76) is fixedly arranged at the left end of the transverse inner cavity (72), and a second inner hole for the transverse sliding rod (751) to penetrate is formed in the stop block (76); a return spring (77) is arranged between the stop block (76) and the right end block (752) in an extrusion mode, a sealing pressing block (753) is pushed to the right stably based on the return spring (77), and the sealing pressing block (753) can prop against a sealing surface (731) of the sealing seat (73) to cut off the gas injection inlet (74) and the transverse inner cavity (72);
An air injection gap (78) is formed between the right end block (752) and the inner wall of the transverse inner cavity (72), and a second air injection auxiliary hole (79) communicated with the transverse inner cavity (72) is formed in the upper end of the air injection inner shell (71).
2. A multimedia video television box with integrated circuit as claimed in claim 1, characterized in that: a rubber sealing ring (732) connected with the sealing surface (731) is arranged in the sealing seat (73).
3. A multimedia video television box with integrated circuit as claimed in claim 1, characterized in that: an output conversion unit is further arranged in the mounting groove (21), and is positioned on the right side of the embedded shell (51) and above the gas injection inner shell (71); the output conversion unit comprises a conversion inner shell (801), a transverse insertion cavity (802) is formed among the embedded shell (51), the gas injection inner shell (71) and the box body (11), and the conversion inner shell (801) is inserted into the transverse insertion cavity (802); the inside of the conversion inner shell (801) is provided with a first through hole (81), a second through hole (82), a third through hole (83) and a fourth through hole (84) which are sequentially communicated from left to right, the first through hole (81) and the third through hole (83) are transversely arranged, the second through hole (82) and the fourth through hole (84) are longitudinally arranged, and the second through hole (82) is communicated with the upper end and the lower end of the conversion inner shell (801); one part of the conversion inner shell (801) is a contact end, and the fourth through hole (84) is connected with the contact end; an inner through hole (91) is formed in the box body (11), and the inner through hole (91) extends to the right end face of the conversion inner shell (801); the cooling body (31) is a square pipe fitting, a cooling inner cavity (311) is formed in the cooling body (31), and the inner through hole (91) is connected with the cooling inner cavity (311) through an outer guide pipe (92);
When the contact end of the conversion inner shell (801) is attached to the gas injection inner shell (71), the second through hole (82) is connected with the second gas injection auxiliary hole (79), the first through hole (81) is connected with the first gas injection auxiliary hole (64), and the inner through hole (91) is cut off; when the other end of the conversion inner shell (801) is attached to the gas injection inner shell (71) compared with the other end of the contact end, the second through hole (82) is connected with the second gas injection auxiliary hole (79), the fourth through hole (84) is connected with the inner through hole (91), and the first gas injection auxiliary hole (64) is cut off.
4. A multimedia video television box with integrated circuit as claimed in claim 3, characterized in that: a control valve (93) connected with the cooling cavity (311) is fixedly arranged on the cooling body (31), and the cooling cavity (311) is exhausted through the control valve (93).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410449059.2A CN118055279B (en) | 2024-04-15 | 2024-04-15 | Multimedia video television box with integrated circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410449059.2A CN118055279B (en) | 2024-04-15 | 2024-04-15 | Multimedia video television box with integrated circuit |
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| CN118055279B true CN118055279B (en) | 2024-06-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245561A (en) * | 2018-10-17 | 2019-01-18 | 合肥凌山新能源科技有限公司 | A kind of cooling radiator structure for solar inverter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204014390U (en) * | 2014-07-30 | 2014-12-10 | 壘鑫金属（香港）有限公司 | A kind of fixed structure of Set Top Box radiator |
| KR20160015949A (en) * | 2014-08-01 | 2016-02-15 | 삼성전자주식회사 | Set-top box |
| CN208337783U (en) * | 2018-06-05 | 2019-01-04 | 宁波高新区拓维网络科技有限公司 | A kind of set-top box easy to assembly |
| CN209201243U (en) * | 2018-12-26 | 2019-08-02 | 苏州艾纽智能科技有限公司 | A kind of set-top box convenient for assembly disassembly |
| CN216057311U (en) * | 2021-07-12 | 2022-03-15 | 苏州孟钧电子有限公司 | Set top box with heat dissipation function |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245561A (en) * | 2018-10-17 | 2019-01-18 | 合肥凌山新能源科技有限公司 | A kind of cooling radiator structure for solar inverter |
Non-Patent Citations (1)
| Title |
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| 使用"封装上系统"智能器件为经济型机顶盒供电;F.Gennaro, F.Salanitri;世界电子元器件;20030801(08);全文 * |
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