Anti-interference set top box mainboard

Abstract

The utility model discloses an anti-interference set top box mainboard, which belongs to the technical field of set top boxes and comprises a mainboard main body and an anti-interference protective cover, the anti-interference protective cover is positioned above the mainboard main body, a metal isolation net is arranged between the anti-interference protective cover and the mainboard main body, a combined interface end is fixedly mounted on one side of the mainboard main body, and the combined interface end is fixedly connected with the mainboard main body. The top of the anti-interference protection cover is provided with an air exhaust heat dissipation assembly, the two sides of the mainboard body are fixedly provided with a plurality of threaded fixing blocks, the outer sides of the threaded fixing blocks are provided with protection cover connecting bottom blocks, protection cover connecting blocks are arranged above the protection cover connecting bottom blocks, one ends of the protection cover connecting blocks are fixedly connected with the anti-interference protection cover, and the other ends of the protection cover connecting blocks are fixedly connected with the anti-interference protection cover. According to the utility model, the stepped anti-interference performance is realized, the external signal output is enhanced, the offline function is realized, the stability and the heat dissipation performance are good, and the flexible and convenient use experience can be provided for a user.

Description

TECHNICAL FIELD

[0001] The utility model relates specifically to an anti-interference set top box mainboard belongs to set top box technical field. BACKGROUND

[0002] In contemporary society, with the development of electronic products and the increasing demand of people for higher use experience, simple TV and antenna can not meet people's entertainment needs early, at this time, set top box is needed to further enhance the signal receiving performance of TV. The so-called set top box is a device connecting TV and external signal source, full name is digital video converter box, which can convert compressed digital signal into TV content, so that users can watch digital TV programs on existing TV, and carry out interactive digital entertainment, education and commercial activities through network, the basic function of digital set top box is to receive digital TV, which meets the various entertainment requirements of users. However, as people's homes are now filled with various electronic products, these increasing electronic products will inevitably affect the surrounding electromagnetic signals in use, so that the electromagnetic environment around the electronic devices is in a relatively chaotic situation, which affects the operation of the set top box of TV. Therefore, an anti-interference set top box mainboard is needed to solve the problem that electronic products and devices are often disturbed by signals in electromagnetic environment.

[0003] The utility model discloses a kind of set top boxes with shielding anti-interference function, and it is related to set top box technical field, to solve the problem of poor shielding anti-interference effect of existing set top box. The inside of the set top box is provided with PCBA mainboard and hard disk, the upper end of the PCBA mainboard is provided with CPU, DDR, FLASH chip, WiFi module and high-frequency head circuit, and the outside of CPU, DDR, FLASH chip and WiFi module is provided with first shield case, the outside of the high-frequency head circuit is provided with second shield case, the upper of the PCBA mainboard is provided with first radiating fin, the lower of the PCBA mainboard is provided with second radiating fin, and first shield case and second shield case are all welded with the PCBA mainboard, the PCBA mainboard is connected with first radiating fin by first conductive sponge, the PCBA mainboard is connected with second radiating fin by second conductive sponge, first conductive sponge is glued with first shield case, and second conductive sponge is glued with the PCBA mainboard.

[0004] The utility model discloses the function is single, only can satisfy part use condition, but still have some shortcomings, for example, although the anti -interference ability basically satisfies, but lack the adjustment ability, and the anti -interference ability of too strong also inevitably bring the reduction for signal receiving ability, in addition lack offline storage capacity, not convenient for the family audio -visual entertainment under the condition of off -network, still lack certain heat dissipation capacity and stability. Utility model content

[0005] The utility model discloses to the deficiency of prior art, provide a kind of anti-interference set top box mainboard, to reach ladder anti-interference, enhance external signal output, with offline function, and the use target of better stability, provide flexible and convenient use experience for user.

[0006] The utility model discloses the following technical scheme to realize above-mentioned purpose, a kind of anti-interference set top box mainboard, including mainboard main body and anti-interference protective cover, the anti-interference protective cover is located the top of mainboard main body, be provided with metal isolation net between the anti-interference protective cover and mainboard main body, the side fixed mounting of mainboard main body has combined interface end, the top of the anti-interference protective cover is provided with exhaust heat dissipation component, the both sides fixed mounting of mainboard main body has a plurality of threaded fixing blocks, the outside of the threaded fixing block is provided with protective cover connecting bottom block, the top of the protective cover connecting bottom block is provided with protective cover connecting block, one end of the protective cover connecting block is fixedly connected with the anti-interference protective cover, and inside screw joint has fixed screw.

[0007] Preferably, in order to enhance the signal transmission capability of the anti-interference set top box mainboard, the top surface of the mainboard main body is fixedly installed with a main chip, one side of the main chip is provided with an anti-interference chip assembly, the side surface of the anti-interference chip assembly is provided with a signal amplifier, one end of the signal amplifier is fixedly installed with a telescopic signal antenna, the bottom of the anti-interference chip assembly and the signal amplifier is fixedly connected with the mainboard main body, the anti-interference chip assembly comprises a backup chip, the bottom of the backup chip is fixedly installed with a chip base, the bottom of the chip base is fixedly connected with the mainboard main body, the top of the backup chip is provided with a shielding net, and the shielding net is fixedly connected with the chip base.

[0008] Preferably, in order to stabilize the voltage stability of the anti-interference set top box mainboard, one side of the anti-interference chip assembly is provided with a resistor group, one side of the resistor group is provided with a voltage stabilizer, one side of the voltage stabilizer is provided with a data storage combination unit, and the bottom of the resistor group, the voltage stabilizer and the data storage combination unit is fixedly connected with the mainboard main body.

[0009] Preferably, in order to increase the heat dissipation capacity of the anti-interference set top box mainboard, the both ends of the mainboard body are provided with protective side plates, one side of the mainboard body is fixedly installed with a connection data plugboard, the bottom of the mainboard body is provided with a shielding rubber pad layer, a metal heat sink is arranged between the main chip and the voltage stabilizer, the bottom of the metal heat sink is fixedly connected with the mainboard body, the position of the metal heat sink corresponds to the air exhaust and heat dissipation assembly, the air exhaust and heat dissipation assembly comprises a fan protection sleeve, the both sides of the fan protection sleeve are provided with connecting plates, the connecting plates are provided with a plurality of heat dissipation assembly screws, the inside of the fan protection sleeve is fixedly installed with a connecting column, one end of the connecting column is fixedly connected with an air exhaust fan, and the top end of the fan protection sleeve is provided with a fan metal mesh.

[0010] The utility model has the advantages of:

[0011] 1. The utility model discloses an anti-interference protection cover and an anti-interference chip assembly are arranged, when signal interference is weak, can only use the anti-interference protection cover, when signal interference is strong, then can start spare chip to obtain stronger anti-interference ability, and let main chip as auxiliary chip handles signal simultaneously, realizes ladder type anti-interference, avoids the situation that signal receiving ability is poor caused by too high anti-interference mode of daily use, uses only in poor environment to obtain good use experience, and combination interface end and telescopic signal antenna are set up simultaneously, and the external signal output is enhanced.

[0012] 2. The utility model discloses an electric resistor group and a voltage stabilizer are set up, and the stability of the set top box mainboard is increased, and air exhaust and heat dissipation assembly and metal heat sink are set up simultaneously, and the heat dissipation capacity of the set top box mainboard is increased, and the use experience is optimized. ACCURACY OF DRAWINGS

[0013] Figure 1 It is the front overall structure schematic diagram of the utility model;

[0014] Figure 2 It is the back overall structure schematic diagram of the utility model;

[0015] Figure 3 It is the inside mainboard front structure schematic diagram of the utility model;

[0016] Figure 4 It is the inside mainboard back structure schematic diagram of the utility model;

[0017] Figure 5 It is the core chip anti-interference structure schematic diagram of the utility model;

[0018] Figure 6 It is the radiator exploded structure schematic diagram of the utility model.

[0019] In the figure: 1, main board main body; 2, anti-interference protective cover; 3, metal isolation net; 4, combined interface end; 5, exhaust cooling assembly; 501, fan protection sleeve; 502, connecting plate; 503, heat dissipation assembly screw; 504, connecting column; 505, exhaust fan; 506, fan metal net; 6, threaded fixing block; 7, protective cover connecting bottom block; 8, protective cover connecting block; 9, fixing screw; 10, main chip; 11, anti-interference chip assembly; 1101, backup chip; 1102, chip base; 1103, shielding net; 12, signal amplifier; 13, resistor group; 14, voltage stabilizer; 15, data storage combination unit; 16, protective side plate; 17, connecting data plugboard; 18, metal heat sink; 19, telescopic signal antenna; 20, shielding rubber pad layer. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to Figures 1-6 As shown in the figure, an anti-interference set top box main board comprises a main board main body 1 and an anti-interference protective cover 2. The anti-interference protective cover 2 is made of metal material and has the function of shielding external signal interference. The anti-interference protective cover 2 is located above the main board main body 1. A metal isolation net 3 is arranged between the anti-interference protective cover 2 and the main board main body 1. The metal isolation net 3 prevents dust and cooperates with the anti-interference protective cover 2 to shield signals. A plurality of threaded fixing blocks 6 are fixedly installed on both sides of the main board main body 1 and used to be fixedly connected with a set top box body. A protective cover connecting bottom block 7 is arranged on the outside of the threaded fixing block 6. A protective cover connecting block 8 is arranged above the protective cover connecting bottom block 7. One end of the protective cover connecting block 8 is fixedly connected with the anti-interference protective cover 2. A fixing screw 9 is screwed in the protective cover connecting block 8. The protective cover connecting block 8 and the protective cover connecting bottom block 7 are connected through the fixing screw 9. Thus, the main board main body 1 and the anti-interference protective cover 2 are fixed. A combined interface end 4 is fixedly installed on one side of the main board main body 1 and comprises data line connection and power connection. An exhaust cooling assembly 5 is arranged on the top of the anti-interference protective cover 2 and used for heat dissipation. The exhaust cooling assembly 5 comprises a fan protection sleeve 501. Connecting plates 502 are arranged on both sides of the fan protection sleeve 501. A plurality of heat dissipation assembly screws 503 are arranged on the connecting plates 502 and used to fix the exhaust cooling assembly 5. A connecting column 504 is fixedly installed in the fan protection sleeve 501. An exhaust fan 505 is fixedly connected to one end of the connecting column 504. A fan metal net 506 is arranged on the top end of the fan protection sleeve 501.

[0022] The top surface of the mainboard body 1 is fixedly installed with a main chip 10, one side of the main chip 10 is provided with an anti-interference chip assembly 11, the anti-interference chip assembly 11 comprises a standby chip 1101, when the signal interference is weak, the anti-interference protection cover 2 can be used only, when the signal interference is strong, the standby chip 1101 can be enabled, so that the main chip 10 can be used as an auxiliary chip to process signals, the bottom of the standby chip 1101 is fixedly installed with a chip base 1102, the bottom of the chip base 1102 is fixedly connected with the mainboard body 1, the upper side of the standby chip 1101 is provided with a shielding net 1103, which is used for further reducing the interference of external signals on the standby chip 1101, the shielding net 1103 is fixedly connected with the chip base 1102, the side of the anti-interference chip assembly 11 is provided with a signal amplifier 12, one end of the signal amplifier 12 is fixedly installed with a telescopic signal antenna 19, which is used for enhancing the signal transmission of external non-wired connection under the condition of signal shielding, such as Bluetooth connection or wifi connection, and the bottom of the anti-interference chip assembly 11 and the signal amplifier 12 are fixedly connected with the mainboard body 1.

[0023] One side of the anti-interference chip assembly 11 is provided with a resistor group 13, one side of the resistor group 13 is provided with a voltage stabilizer 14, and the two are matched to enhance the stability of the mainboard of the set-top box, one side of the voltage stabilizer 14 is provided with a data storage combination unit 15, which is used for storing offline data, the bottom of the resistor group 13, the voltage stabilizer 14 and the data storage combination unit 15 are fixedly connected with the mainboard body 1, both ends of the mainboard body 1 are provided with protection side plates 16, one side of the mainboard body 1 is fixedly installed with a connection data plugboard 17, which is used for being directly plugged with the set-top box, the bottom of the mainboard body 1 is provided with a shielding rubber pad layer 20, a metal heat sink 18 is arranged between the main chip 10 and the voltage stabilizer 14, the bottom of the metal heat sink 18 is fixedly connected with the mainboard body 1, the position of the metal heat sink 18 corresponds to the air cooling assembly 5, when the metal heat sink 18 can absorb internal heat and make it gather together, and the air cooling assembly 5 is used for targetedly removing heat.

[0024] It is apparent for those skilled in the art that the present application is not limited to the details of the above-mentioned exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded only as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be regarded as limiting the claims to which they relate.

[0025] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. An interference-resistant set-top box main board, characterized by, The utility model provides an anti -interference protection cover and mainboard body (1) are included, the anti -interference protection cover (2) is located the top of mainboard body (1), be provided with metal isolation net (3) between anti -interference protection cover (2) with mainboard body (1), one side of mainboard body (1) is fixedly installed with combined interface end (4), the top of anti -interference protection cover (2) is provided with exhaust heat -radiating assembly (5).

2. The tamper-resistant set-top box motherboard of claim 1, wherein: The utility model discloses a mainboard body (1) both sides fixedly installed with a plurality of threaded fixing blocks (6), the outside of threaded fixing block (6) is provided with protection cover connecting bottom block (7), the top of protection cover connecting bottom block (7) is provided with protection cover connecting block (8), one end of protection cover connecting block (8) is fixedly connected with anti -interference protection cover (2), and inside screw has fixed screw (9).

3. The anti-interference set-top box motherboard as described in claim 1, characterized in that: The utility model discloses a mainboard body (1) top fixed surface is installed with main chip (10), one side of main chip (10) is provided with anti -interference chip subassembly (11), the side of anti -interference chip subassembly (11) is provided with signal amplifier (12), one end of signal amplifier (12) is fixedly installed with telescopic signal antenna (19), and the bottom of anti -interference chip subassembly (11) and signal amplifier (12) are fixedly connected with mainboard body (1).

4. The anti-interference set-top box motherboard as described in claim 3, characterized in that: The utility model discloses an anti -interference chip subassembly (11) includes spare chip (1101), the bottom of spare chip (1101) is fixedly installed with chip base (1102), and the bottom of chip base (1102) is fixedly connected with mainboard body (1), and the top of spare chip (1101) is provided with shielding net (1103), and shielding net (1103) is fixedly connected with chip base (1102).

5. The tamper-resistant set-top box motherboard of claim 3, wherein: the first and second security chips are mounted on the motherboard in a manner that prevents access to the first and second security chips without damaging the motherboard. 5 One side of the anti-interference chip subassembly (11) is provided with a resistor group (13), one side of the resistor group (13) is provided with a voltage stabilizer (14), one side of the voltage stabilizer (14) is provided with a data storage combination unit (15), and the bottom of the resistor group (13), the voltage stabilizer (14), and the data storage combination unit (15) is fixedly connected with the mainboard body (1).

6. The tamper-resistant set-top box motherboard of claim 1, wherein: Both ends of the mainboard body (1) are provided with protection side plates (16), one side of the mainboard body (1) is fixedly installed with a connection data plug-in board (17), and the bottom of the mainboard body (1) is provided with a shielding rubber pad layer (20).

7. The tamper-resistant set-top box motherboard of claim 5, wherein: the first and second security chips are mounted on the motherboard in a manner that prevents access to the first and second security chips without damaging the motherboard. A metal heat sink (18) is arranged between the main chip (10) and the voltage stabilizer (14), the bottom of the metal heat sink (18) is fixedly connected with the mainboard body (1), and the position of the metal heat sink (18) corresponds to the exhaust heat-radiating assembly (5). ​ 8. The tamper-resistant set-top box motherboard of claim 1, wherein: the first and second security chips are mounted on the motherboard in a manner that prevents access to the first and second security chips without damaging the motherboard. The exhaust heat dissipation assembly (5) includes a fan protection cover (501), both sides of the fan protection cover (501) are provided with connecting plates (502), the connecting plates (502) are provided with a plurality of heat dissipation assembly screws (503), the inside of the fan protection cover (501) is fixedly installed with a connecting column (504), one end of the connecting column (504) is fixedly connected with an exhaust fan (505), and the top end of the fan protection cover (501) is provided with a fan metal mesh (506). ​

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