DVB (Digital Video Broadcasting) decoding deck with relatively good protection performance

Abstract

The utility model relates to the technical field of DVB (Digital Video Broadcasting) decoding decks, in particular to a DVB decoding deck with better protection performance, which comprises a DVB case, a DVB decoding deck body and a cover, and a locking assembly is arranged between the DVB case and the cover; the DVB decoding deck comprises a DVB decoding deck body, a plurality of wiring terminals are installed on the surface of the DVB decoding deck body, a plurality of wiring ports matched with the wiring terminals are formed in the surface of the DVB case, and plate placing frames are attached to the four corners of the DVB decoding deck and fixedly connected to the corners of the inner surface of the DVB case. The DVB decoding deck is convenient to install, maintain and disassemble through installation and disassembly of the machine cover, meanwhile, the surface of the DVB decoding deck can be prevented from being in contact with the inner wall of a DVB machine box as much as possible through supporting of the DVB decoding deck body of each plate placing frame, the DVB decoding deck body can better dissipate heat, and the aging speed of the DVB decoding deck is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of DVB decoder boards, in particular to a DVB decoder board with good protection performance. Background Art

[0002] A DVB decoder board is a decoding device that can output switching signals when working. It is composed of chips and sockets, etc., and is electrically connected to a circuit board. It has a good electronic signal decoding effect and a low production cost. It is widely used in the field of signal decoding and system integration.

[0003] However, the existing DVB decoder board has certain drawbacks when in use. It is usually fixedly installed in the DVB chassis 1, which makes it difficult to conveniently install, maintain and disassemble the decoding PCB board during use. In addition, the current DVB decoder board is usually directly attached to the bottom of the DVB chassis 1, so that the heat at the bottom can be conducted away in time, which makes it unable to dissipate heat better, and easily accelerates the aging speed of the DVB decoder board. Utility Model Content

[0004] The utility model aims to solve the problems in the background technology and proposes a DVB decoder board with better protection performance.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A DVB decoder board with good protection performance comprises a DVB chassis, a DVB decoder board body and a cover, wherein a locking component is arranged between the DVB chassis and the cover;

[0007] A plurality of connection terminals are installed on the surface of the DVB decoder board body, a plurality of connection ports matching the plurality of connection terminals are opened on the surface of the DVB chassis, board racks are attached to the four corners of the DVB decoder board, and the board racks are fixedly connected to the corners of the inner surface of the DVB chassis, a plurality of extrusion columns are fixedly installed on the bottom of the cover, and the extrusion columns are pressed against the top of the DVB decoder board body;

[0008] The locking assembly includes a right-angle plate that slides through the rear side of the DVB chassis, a spring is commonly connected between the inner side of the right-angle plate and the inner wall of the DVB chassis, and a positioning block is fixedly installed on one side of the right-angle plate close to the spring, a positioning plate is movably sleeved on the surface of the positioning block, and the positioning plate is fixedly installed on the bottom of the cover.

[0009] Preferably, both side walls of the DVB chassis are provided with heat dissipation openings, a dustproof filter plate is slidably penetrated through the top of the heat dissipation opening, and the dustproof filter plate is fixedly mounted on the bottom of the cover.

[0010] Preferably, each of the connection terminals is electrically connected to an electrostatic protection diode, and the electrostatic protection diode is fixedly mounted on the surface of the DVB decoder board body.

[0011] Preferably, a board placement groove is formed on the surface of each of the board placement racks, and the board placement groove is snap-fitted with a corner of the DVB decoder board body.

[0012] Preferably, a positioning hole is provided on the surface of the positioning plate, and the positioning hole is slidably connected to the positioning block.

[0013] Preferably, a plug hole is provided on the top of each heat dissipation port, and the plug hole is slidably connected to the corresponding dustproof filter plate.

[0014] Compared with the existing technology, the advantages of this DVB decoder board with better protection performance are:

[0015] 1. Through the insertion of the positioning block and the positioning hole, the cover can be limited and fixed after the cover is closed. At the same time, by using each extrusion column to squeeze the top of the DVB decoder board body, and then cooperating with each board rack to support its bottom, the DVB decoder board body can be tightly fixed in the DVB chassis, ensuring the firmness of the DVB decoder board body, and completing the installation of the DVB decoder board body, thereby facilitating the installation, maintenance and disassembly of the DVB decoder board;

[0016] 2. Through the support of the DVB decoder board body of each board rack, the surface of the DVB decoder board body can be prevented from contacting the inner wall of the DVB chassis as much as possible, so that it is suspended in the DVB chassis, and then the air circulation at the two heat dissipation ports effectively improves the circulation of its surface heat in the DVB chassis, so that the DVB decoder board body can dissipate heat better, thereby slowing down the aging speed of the DVB decoder board. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a DVB decoder board with better protection performance proposed by the utility model;

[0018] Figure 2 This is a cross-sectional view of a DVB decoder board with better protection performance proposed by the utility model;

[0019] Figure 3 This is a first-person exploded view of a DVB decoder board with good protection performance proposed by the utility model;

[0020] Figure 4 This is an exploded view from a second perspective of a DVB decoder board with better protection performance proposed by the utility model;

[0021] Figure 5The utility model provides a schematic diagram of the top view of the DVB chassis in a DVB decoder board with good protection performance.

[0022] In the figure: 1 DVB chassis, 2 DVB decoder board body, 3 cover, 4 wiring terminals, 5 wiring ports, 6 board rack, 7 board slot, 8 extrusion column, 9 right-angle plate, 10 spring, 11 positioning block, 12 positioning plate, 13 positioning hole, 14 heat dissipation port, 15 dust filter plate, 16 jack, 17 electrostatic protection diode. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-Figure 5 A DVB decoder board with good protection performance includes a DVB chassis 1, a DVB decoder board body 2 and a cover 3. A plurality of wiring terminals 4 are installed on the surface of the DVB decoder board body 2. Each wiring terminal 4 is electrically connected to an electrostatic protection diode 17, and the electrostatic protection diode 17 is fixedly installed on the surface of the DVB decoder board body 2. One terminal of the electrostatic protection diode 17 is connected to a corresponding wiring terminal 4, and the other terminal is connected to a ground interface on the DVB decoder board body 2, which can quickly discharge static electricity to the ground to protect the main circuit from damage.

[0025] The surface of the DVB chassis 1 is provided with a plurality of wiring ports 5 matching with the plurality of wiring terminals 4, and the four corners of the DVB decoder board 2 are all fitted with board racks 6, and the board racks 6 are fixedly connected to the corners of the inner surface of the DVB chassis 1, and the surface of each board rack 6 is provided with a board slot 7, and the board slot 7 is snap-fitted with the corner of the DVB decoder board body 2, so that the surface of the DVB decoder board body 2 can avoid contact with the inner wall of the DVB chassis 1 as much as possible, so that it is in a suspended state in the DVB chassis 1, so as to improve the circulation of its surface heat in the DVB chassis 1.

[0026] A plurality of squeezing columns 8 are fixedly mounted on the bottom of the cover 3, and the squeezing columns 8 are pressed against the top of the DVB decoder board body 2. After the cover 3 is closed, each squeezing column 8 squeezes the top of the DVB decoder board body 2, and each board holder 6 supports the bottom thereof, so that the DVB decoder board body 2 can be tightly fixed in the DVB chassis 1, thereby ensuring the firmness of the DVB decoder board body 2.

[0027] A locking assembly is provided between the DVB chassis 1 and the cover 3, and the locking assembly includes a right-angle plate 9 that slides through the rear side of the DVB chassis 1, a spring 10 is commonly connected between the inner side of the right-angle plate 9 and the inner wall of the DVB chassis 1, and a positioning block 11 is fixedly installed on the side of the right-angle plate 9 close to the spring 10, a positioning plate 12 is movably sleeved on the surface of the positioning block 11, and the positioning plate 12 is fixedly installed on the bottom of the cover 3, a positioning hole 13 is opened on the surface of the positioning plate 12, and the positioning hole 13 is slidably connected to the positioning block 11, and by plugging the positioning block 11 and the positioning hole 13, the cover 3 can be limited and fixed after it is closed.

[0028] Furthermore, heat dissipation ports 14 are provided on both side walls of the DVB chassis 1, and a dustproof filter plate 15 is slidably penetrated through the top of the heat dissipation port 14, and the dustproof filter plate 15 is fixedly installed at the bottom of the cover 3. A plug hole 16 is provided on the top of each heat dissipation port 14, and the plug hole 16 is slidably connected to the corresponding dustproof filter plate 15. Through the air circulation in the two heat dissipation ports 14, the heat in the DVB chassis 1 can be quickly discharged from the heat dissipation ports 14, thereby improving the heat dissipation effect of the DVB decoder board body 2. At the same time, during the air circulation process, under the filtering effect of the dustproof filter plate 15, it can also effectively prevent external dust from entering the DVB chassis 1, and after removing the cover 3, the two dustproof filter plates 15 can be pulled out together for cleaning and maintenance.

[0029] The working principle of the utility model is as follows:

[0030] When the DVB decoder board body 2 needs to be removed, the right-angle plate 9 is first pressed inward to stretch the spring 10 until the positioning block 11 is completely separated from the positioning hole 13 on the positioning plate 12. At this time, the cover 3 can be lifted up and removed. Then the staff can take the DVB decoder board body 2 out of the DVB chassis 1 for maintenance and disassembly;

[0031] After the maintenance is completed, the DVB decoder board body 2 is put back into the DVB chassis 1, and its four corners are placed in the plate slots 7 on the four plate racks 6, and then the right-angle plate 9 is pressed inward to stretch the spring 10, and then the two dust filter plates 15 on the cover 3 are aligned with the two plug holes 16, respectively, and inserted into the corresponding heat dissipation ports 14, and finally the right-angle plate 9 is released. At this time, under the action of the spring 10, the right-angle plate 9 moves outward until it drives the positioning block 11 to be inserted into the positioning hole 13 on the positioning plate 12, and the cover 3 can be fixed;

[0032] At the same time, by using each squeezing column 8 to squeeze the top of the DVB decoder board body 2, and then cooperating with each board mounting frame 6 to support its bottom, the DVB decoder board body 2 can be tightly fixed in the DVB chassis 1, ensuring the firmness of the DVB decoder board body 2, and the installation of the DVB decoder board body 2 can be completed.

[0033] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A DVB decoder board with good protection performance, characterized in that: It comprises a DVB case (1), a DVB decoder board body (2) and a cover (3), and a locking component is provided between the DVB case (1) and the cover (3); The surface of the DVB decoder board body (2) is provided with a plurality of wiring terminals (4); the surface of the DVB chassis (1) is provided with a plurality of wiring ports (5) matching the plurality of wiring terminals (4); four corners of the DVB decoder board (2) are fitted with board racks (6), and the board racks (6) are fixedly connected to the corners of the inner surface of the DVB chassis (1); a plurality of extrusion columns (8) are fixedly installed at the bottom of the cover (3), and the extrusion columns (8) are pressed against the top of the DVB decoder board body (2); The locking assembly comprises a right-angle plate (9) which slides through the rear side of the DVB chassis (1); a spring (10) is commonly connected between the inner side of the right-angle plate (9) and the inner wall of the DVB chassis (1); a positioning block (11) is fixedly mounted on one side of the right-angle plate (9) close to the spring (10); a positioning plate (12) is movably sleeved on the surface of the positioning block (11); and the positioning plate (12) is fixedly mounted on the bottom of the cover (3).

2. A DVB decoder board with good protection performance according to claim 1, characterized in that: Both side walls of the DVB case (1) are provided with heat dissipation openings (14), the top of the heat dissipation opening (14) is slidably penetrated by a dustproof filter plate (15), and the dustproof filter plate (15) is fixedly mounted on the bottom of the cover (3).

3. A DVB decoder board with good protection performance according to claim 1, characterized in that: Each of the connection terminals (4) is electrically connected to an electrostatic protection diode (17), and the electrostatic protection diode (17) is fixedly mounted on the surface of the DVB decoder board body (2).

4. A DVB decoder board with good protection performance according to claim 1, characterized in that: A board placement groove (7) is provided on the surface of each board placement frame (6), and the board placement groove (7) is snap-fitted with the corner of the DVB decoder board body (2).

5. A DVB decoder board with good protection performance according to claim 1, characterized in that: A positioning hole (13) is provided on the surface of the positioning plate (12), and the positioning hole (13) is slidably connected to the positioning block (11).

6. A DVB decoder board with good protection performance according to claim 2, characterized in that: A plug hole (16) is provided at the top of each heat dissipation port (14), and the plug hole (16) is slidably connected to the corresponding dustproof filter plate (15).

Images