PCB fixing structure of intelligent set top box

Abstract

The utility model relates to the technical field of fixing structures, and discloses a PCB fixing structure of an intelligent set top box, which comprises a shell and a PCB erected in the shell, the surface of the PCB is provided with a plurality of mounting holes, and the interiors of the plurality of mounting holes are connected with a fixing mechanism in a penetrating manner. According to the PCB fixing structure of the intelligent set top box, through the arrangement of the shell and the fixing mechanism, a mounting hole in the surface of a PCB is aligned with a first rubber pad at the top of a sleeve of the PCB, then a fixing block is held, a movable column is inserted into the sleeve, two L-shaped hook plates make contact with a disc, the fixing block is continuously pressed down after the disc is in contact, and the L-shaped hook plates rotate on the surface of an H-shaped plate; meanwhile, after the disc is contacted, one end of the L-shaped hook plate is expanded, the movable plate descends to extrude the first spring, the fixed block is loosened after the disc is clamped by the L-shaped hook plate, and the second spring is stretched, so that the fixed block is pulled by the second spring and abuts against the PCB through the second rubber pad, and the PVB board can be fixed.

Description

Technical Field

[0001] This utility model relates to the field of fixing structure technology, and in particular to a PCB fixing structure for a smart set-top box. Background Technology

[0002] As an important part of modern home entertainment, the stability and reliability of the internal structure of the set-top box are of paramount importance. Among them, the PCB (printed circuit board) fixing structure, as one of the core components inside the set-top box, undertakes the important task of fixing the PCB board and ensuring stable circuit connection.

[0003] Currently, the PCB fixing structure of smart set-top boxes on the market has the following drawbacks: the general PCB fixing structure uses screws to fasten the PCB inside the set-top box, but screwdrivers are required for fixing, which is cumbersome and affects the efficiency of PCB installation; therefore, we have designed a PCB fixing structure for smart set-top boxes. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a PCB fixing structure for a smart set-top box that is highly practical, easy to operate, and has a simple structure, thus solving the problem mentioned in the background art that the fixing process requires a screwdriver and is quite cumbersome.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a PCB fixing structure for a smart set-top box, including a shell and a PCB board mounted inside the shell, wherein a plurality of mounting holes are provided on the surface of the PCB board, and a fixing mechanism is connected through the interior of the plurality of mounting holes;

[0006] The fixing mechanism includes a sleeve fixedly connected to the inner bottom wall of the outer shell, a movable column slidably connected inside the sleeve, and a fixing block slidably connected to the surface of the movable column. A connecting column is fixedly connected to the inner bottom wall of the sleeve, and a disc is fixedly connected to one end of the connecting column. A first groove and a second groove are provided at the top and bottom of the movable column. An H-plate is fixedly connected to the inner wall of the second groove. Two L-shaped hook plates are rotatably connected to both sides of the surface of the H-plate. A protrusion is fixedly connected to the surface of the two L-shaped hook plates. A movable plate is rotatably connected to the surface of the protrusion. A first spring is fixedly connected to the bottom of the movable plate. A first buffer rod is sleeved inside the first spring. One end of the first spring is fixedly connected to the surface of the H-plate. A second spring is fixedly connected to the inner wall of the first groove. One end of the second spring is fixedly connected to the inner top wall of the fixing block. A push rod is fixedly connected to the top of the movable plate, and the push rod passes through the movable column and the fixing block.

[0007] Optionally, a first rubber pad is fixedly connected to the top of the sleeve, and the top of the first rubber pad is in contact with the bottom of the PCB board.

[0008] Optionally, a second rubber pad is fixedly connected to the bottom of the fixing block, and the bottom of the second rubber pad is in contact with the top of the PCB board.

[0009] Optionally, the inner bottom wall of the outer casing is provided with several heat dissipation grooves, and the top of the outer casing is fixedly connected to a cover plate by bolts.

[0010] Optionally, a foot pad is fixedly connected to the bottom of the housing, and an anti-slip pad is fixedly connected to the bottom of the foot pad.

[0011] This utility model provides a PCB fixing structure for a smart set-top box, which has the following advantages:

[0012] 1. The PCB fixing structure of this smart set-top box, through the setting of the outer shell and fixing mechanism, aligns the mounting holes on the surface of the PCB board with the first rubber pad on the top of the sleeve, then holds the fixing block, causing the movable column to insert into the sleeve, so that the two L-shaped hook plates contact the disc. After contacting the disc, the fixing block is continuously pressed down, causing the L-shaped hook plates to rotate on the surface of the H-plate. At the same time, after contacting the disc, one end of the L-shaped hook plate is opened, and the movable plate descends and is compressed by the first spring. After the L-shaped hook plate locks the disc, the fixing block is released, and the second spring is stretched, so that the fixing block is pulled by the second spring and abuts against the PCB board through the second rubber pad, thus completing the fixing of the PVB board. This improves the efficiency of PCB board installation and fixing, and no other auxiliary tools are needed for installation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall disassembled structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the disassembled structure of the fixing mechanism of this utility model;

[0016] Figure 4 This is a schematic diagram of the overall structure of this utility model.

[0017] In the diagram: 1. Outer shell; 2. PCB board; 3. Fixing mechanism; 301. Sleeve; 302. Movable column; 303. Fixing block; 304. Connecting column; 305. Disc; 306. First groove; 307. Second groove; 308. H-plate; 309. L-shaped hook plate; 310. Protrusion block; 311. Movable plate; 312. First spring; 313. Second spring; 314. Push rod; 4. First rubber pad; 5. Second rubber pad; 6. Cover plate; 7. Anti-slip pad. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0019] Please see Figures 1 to 4 This utility model provides a technical solution: a PCB fixing structure for a smart set-top box, including a housing 1 and a PCB board 2 mounted inside the housing 1. The surface of the PCB board 2 has several mounting holes, and a fixing mechanism 3 is connected through the interior of each mounting hole. The fixing mechanism 3 includes a sleeve 301 fixedly connected to the inner bottom wall of the housing 1, a movable column 302 slidably connected inside the sleeve 301, and a fixing block 303 slidably connected to the surface of the movable column 302. A connecting column 304 is fixedly connected to the inner bottom wall of the sleeve 301. One end of the connecting column 304 is fixedly connected to a disc 305. The top and bottom of the movable column 302 are both provided with a first groove 306 and a second groove 307. An H-plate 308 is fixedly connected to the inner wall of the second groove 307. Two L-shaped hook plates 309 are rotatably connected to both sides of the surface of the H-plate 308. A protrusion 310 is fixedly connected to the surface of the two L-shaped hook plates 309. A movable plate 311 is rotatably connected to the surface of the protrusion 310. A first spring 312 is fixedly connected to the bottom of the movable plate 311. A first buffer is sleeved inside the first spring 312. The punch rod, one end of the first spring 312 is fixedly connected to the surface of the H plate 308, the inner wall of the first groove 306 is fixedly connected to the second spring 313, one end of the second spring 313 is fixedly connected to the inner top wall of the fixing block 303, the top of the movable plate 311 is fixedly connected to the push rod 314, the push rod 314 passes through the movable column 302 and the fixing block 303, align the mounting hole on the surface of the PCB board 2 with the first rubber pad 4 on the top of the sleeve 301, and then hold the fixing block 303 to insert the movable column 302 into the sleeve 301, so that the two L-shaped hook plates 309 contacts the disc 305. After contacting the disc 305, it continuously presses down on the fixing block 303, causing the L-shaped hook plate 309 to rotate on the surface of the H plate 308. At the same time, after contacting the disc 305, one end of the L-shaped hook plate 309 is opened, and the movable plate 311 descends and is squeezed by the first spring 312. After the L-shaped hook plate 309 locks the disc 305, the fixing block 303 is released, and the second spring 313 is stretched, so that the fixing block 303 is pulled by the second spring 313 and abuts against the PCB board 2 through the second rubber pad 5, thus completing the fixation of the PVB board.

[0020] Furthermore, a first rubber pad 4 is fixedly connected to the top of the sleeve 301, and the top of the first rubber pad 4 is in contact with the bottom of the PCB board 2.

[0021] Furthermore, a second rubber pad 5 is fixedly connected to the bottom of the fixing block 303. The bottom of the second rubber pad 5 is in contact with the top of the PCB board 2. The second rubber pad 5 can prevent the fixing block 303 from directly contacting the PCB board 2 and causing damage.

[0022] Furthermore, the inner bottom wall of the outer casing 1 is provided with several heat dissipation slots, and the top of the outer casing 1 is fixedly connected to a cover plate 6 by bolts. The heat dissipation slots facilitate heat dissipation during the operation of the PCB board 2.

[0023] Furthermore, a foot pad is fixedly connected to the bottom of the outer casing 1, and an anti-slip pad 7 is fixedly connected to the bottom of the foot pad. The anti-slip pad 7 can reduce the slippage of the outer casing 1 after it is placed.

[0024] In this invention, the working steps of the device are as follows:

[0025] First step: Align the mounting holes on the surface of PCB board 2 with the first rubber pad 4 on the top of sleeve 301, then hold the fixing block 303 and insert the movable column 302 into the sleeve 301 so that the two L-shaped hook plates 309 contact the disc 305. After contacting the disc 305, continue to press down on the fixing block 303 so that the L-shaped hook plates 309 rotate on the surface of H plate 308. At the same time, after contacting the disc 305, one end of the L-shaped hook plate 309 is opened, and the movable plate 311 descends and is squeezed by the first spring 312. After the L-shaped hook plate 309 is stuck on the disc 305, release the fixing block 303. At the same time, the second spring 313 is stretched, so that the fixing block 303 is pulled by the second spring 313 and abuts against the PCB board 2 through the second rubber pad 5, thus completing the fixing of the PVB board.

[0026] The second step: Finally, place the cover plate 6 on top of the outer casing 1 and tighten the bolts. It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. The technical details of the device's power mechanism, power supply system, and control system are not fully described. However, those skilled in the art, understanding the principle of the above utility model, can clearly understand the specifics of its power mechanism, power supply system, and control system. The control method in the application document is automatic control via a controller, and the controller's control circuit can be easily implemented by those skilled in the art through simple programming.

[0027] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PCB fixing structure for a smart set-top box, characterized in that: The device includes an outer shell (1) and a PCB board (2) mounted inside the outer shell (1). The surface of the PCB board (2) is provided with several mounting holes, and a fixing mechanism (3) is connected through the interior of the mounting holes. The fixing mechanism (3) includes a sleeve (301) fixedly connected to the inner bottom wall of the outer shell (1) and a movable column (302) slidably connected to the inside of the sleeve (301), and a fixing block (303) slidably connected to the surface of the movable column (302). A connecting column (304) is fixedly connected to the inner bottom wall of the sleeve (301). A disc (305) is fixedly connected to one end of the connecting column (304). A first groove (306) and a second groove (307) are provided at the top and bottom of the movable column (302). An H plate (308) is fixedly connected to the inner wall of the second groove (307). Two L-shaped hook plates (309) are rotatably connected to both sides of the surface of the H plate (308). A protrusion (310) is fixedly connected to the surface of the protrusion (310), and a movable plate (311) is rotatably connected to the surface of the protrusion (310). A first spring (312) is fixedly connected to the bottom of the movable plate (311), and a first buffer rod is sleeved inside the first spring (312). One end of the first spring (312) is fixedly connected to the surface of the H plate (308). A second spring (313) is fixedly connected to the inner wall of the first groove (306), and one end of the second spring (313) is fixedly connected to the inner top wall of the fixed block (303). A push rod (314) is fixedly connected to the top of the movable plate (311), and the push rod (314) passes through the movable column (302) and the fixed block (303).

2. The PCB fixing structure for a smart set-top box according to claim 1, characterized in that: The top of the sleeve (301) is fixedly connected to a first rubber pad (4), and the top of the first rubber pad (4) is in contact with the bottom of the PCB board (2).

3. The PCB fixing structure for a smart set-top box according to claim 1, characterized in that: The bottom of the fixing block (303) is fixedly connected to a second rubber pad (5), and the bottom of the second rubber pad (5) is in contact with the top of the PCB board (2).

4. The PCB fixing structure for a smart set-top box according to claim 1, characterized in that: The inner bottom wall of the outer shell (1) is provided with several heat dissipation grooves, and the top of the outer shell (1) is fixedly connected with a cover plate (6) by bolts.

5. The PCB fixing structure for a smart set-top box according to claim 1, characterized in that: The bottom of the outer shell (1) is fixedly connected to a foot pad, and the bottom of the foot pad is fixedly connected to an anti-slip pad (7).

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