An anti-interference multilayer circuit board

Abstract

The utility model relates to the technical field of circuit board, concretely to an anti -interference multilayer circuit board, including the shell, the inside of shell is provided with fixing device, and fixing device includes support plate and connecting plate, and the inside of support plate is provided with mounting frame, and the inside of mounting frame is provided with locating shaft, and the inside of mounting frame is provided with through -hole, and the inside of through -hole is provided with fixed bolt, and the side of connecting plate is provided with threaded cylinder, and the inside of threaded cylinder is provided with fixed screw. The anti -interference multilayer circuit board, through the cooperation of locating hole, locating shaft and mounting frame, plays the role of clamping circuit board, through the cooperation of fixed bolt and through -hole, plays the role of splicing mounting frame, through the cooperation of baffle and support plate, plays the role of fixed mounting frame, through the cooperation of threaded cylinder, connecting hole and fixed screw, plays the role of clamping baffle.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, specifically to an anti-interference multilayer circuit board. Background Technology

[0002] Circuit boards are also known as ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, PCBs, aluminum substrates, high-frequency boards, thick copper boards, impedance boards, ultra-thin circuit boards, and printed circuit boards (copper etching technology). Circuit boards miniaturize and visualize circuits, playing a crucial role in the mass production of fixed circuits and optimizing the layout of electrical appliances. Circuit boards can be called printed circuit boards or printed circuit boards, with English names including (Printed Circuit Board) PCB, (Flexible Printed Circuit Board) FPC (also known as flexible circuit board; flexible circuit boards are made of polyimide or polyester film as a substrate, possessing high reliability and excellent flexibility, characterized by high wiring density, light weight, thinness, and good bending properties), and rigid-flex boards (soft and hard combination boards). The birth and development of FPC and PCB gave rise to a new product called rigid-flex PCB. Therefore, rigid-flex PCB is a circuit board that combines flexible circuit board and rigid circuit board through processes such as lamination and according to relevant process requirements, forming a circuit board with the characteristics of both FPC and PCB.

[0003] Currently available anti-interference multilayer circuit boards have complex installation structures, which makes maintenance difficult and they lack heat dissipation devices, resulting in a reduced service life. Therefore, there is an urgent need for an anti-interference multilayer circuit board to improve these problems. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to propose an anti-interference multilayer circuit board to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.

[0006] To achieve the above objectives, one embodiment of the present invention provides an anti-interference multilayer circuit board, including a housing, a fixing device disposed inside the housing, the fixing device including a support plate and a connecting plate, a mounting frame disposed inside the support plate, a positioning shaft disposed inside the mounting frame, a through hole disposed inside the mounting frame, a fixing bolt disposed inside the through hole, a threaded cylinder disposed on one side of the connecting plate, a fixing screw disposed inside the threaded cylinder, a baffle disposed on one side of the fixing screw, and a connecting hole disposed inside the baffle.

[0007] Preferably, a circuit board is provided on the outer side of the positioning shaft, and a positioning hole is provided inside the circuit board. The positioning shaft is adapted to the positioning hole, and the mounting frame is slidably connected to the inside of the support plate.

[0008] By adopting the above technical solution, the positioning shaft and the positioning hole are matched, which facilitates the fixing of the circuit board.

[0009] Preferably, the support plate and the connecting plate are both fixedly connected to the inside of the outer shell, the threaded cylinder is fixedly connected to one side of the connecting plate, the fixing screw is adapted to the threaded cylinder, and the baffle is snapped onto the outside of the fixing screw.

[0010] By adopting the above technical solution, the fixing screw is adapted to the threaded cylinder, thus serving to fix the baffle.

[0011] Preferably, a heat dissipation device is provided on one side of the outer casing. The heat dissipation device includes a through groove and a mounting cylinder. A mesh plate is provided inside the through groove. A fixing frame is provided inside the mounting cylinder. A connecting cylinder is provided on one side of the fixing frame. A high-speed motor is provided inside the connecting cylinder. A fan blade is provided on the output shaft of the high-speed motor. A mounting plate is provided on one side of the fan blade. An air outlet is provided inside the mounting plate.

[0012] By adopting the above technical solution, the output shaft of the high-speed motor is equipped with fan blades, which play a role in driving airflow.

[0013] Preferably, the through groove is formed inside the outer shell, the mesh plate is fixedly connected inside the through groove, the mounting cylinder is fixedly connected to one side of the outer shell, and the outer shell communicates with the mounting cylinder.

[0014] By adopting the above technical solution, the mesh plate is fixedly connected inside the through groove, which facilitates airflow.

[0015] Preferably, the fixing frame and the mounting plate are both fixedly connected to the inside of the mounting cylinder, the connecting cylinder is fixedly connected to one side of the fixing frame, and the high-speed motor is fixedly connected to the inside of the connecting cylinder.

[0016] By adopting the above technical solution, the high-speed motor is fixedly connected inside the connecting cylinder, which drives the fan blades to rotate.

[0017] In summary, the beneficial technical effects of this utility model are as follows:

[0018] 1. This anti-interference multilayer circuit board uses positioning holes, positioning shafts and mounting frames to clamp the circuit board; uses fixing bolts and through holes to splice the mounting frame; uses baffles and support plates to fix the mounting frame; and uses threaded cylinders, connecting holes and fixing screws to clamp the baffles. By using the above structure, the circuit board can be quickly disassembled and assembled, thus facilitating maintenance.

[0019] 2. This anti-interference multilayer circuit board, through the use of through slots and mesh plates, facilitates the entry of air into the interior of the casing. Through the use of mounting cylinders, fixing brackets, and connecting cylinders, it secures the high-speed motor. Through the use of the high-speed motor and fan blades, it drives airflow. By opening air outlets inside the mounting plate, it facilitates the discharge of hot air. By using the above structure, the internal temperature of the casing can be effectively controlled, thereby extending its service life. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a structural schematic diagram of the fixing device of this utility model;

[0022] Figure 3 This is a schematic diagram of the installation frame of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the threaded cylinder of this utility model;

[0024] Figure 5 This is a schematic diagram of the heat dissipation device of this utility model;

[0025] Figure 6 This is a schematic diagram of the internal structure of the mounting cylinder of this utility model.

[0026] In the diagram: 1. Outer shell; 2. Fixing device; 3. Support plate; 4. Connecting plate; 5. Mounting frame; 6. Positioning shaft; 7. Through hole; 8. Fixing bolt; 9. Threaded cylinder; 10. Fixing screw; 11. Baffle; 12. Connecting hole; 13. Circuit board; 14. Positioning hole; 15. Heat dissipation device; 16. Through slot; 17. Mounting cylinder; 18. Mesh plate; 19. Fixing bracket; 20. Connecting cylinder; 21. High-speed motor; 22. Fan blade; 23. Mounting plate; 24. Air outlet. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all 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 protection scope of the present utility model.

[0028] Reference Figures 1 to 4 This utility model discloses an anti-interference multilayer circuit board, including a housing 1. A fixing device 2 is disposed inside the housing 1. The fixing device 2 includes a support plate 3 and a connecting plate 4. A mounting frame 5 is disposed inside the support plate 3. A positioning shaft 6 is disposed inside the mounting frame 5. A through hole 7 is opened inside the mounting frame 5. A fixing bolt 8 is disposed inside the through hole 7. A threaded cylinder 9 is disposed on one side of the connecting plate 4. A fixing screw 10 is disposed inside the threaded cylinder 9. A baffle 11 is disposed on one side of the fixing screw 10. A connecting hole 12 is opened inside the baffle 11. In this embodiment, the housing 1 serves to protect the internal structure, the support plate 3 serves to support the mounting frame 3, and the connecting plate 3 serves to fix the threaded cylinder 9.

[0029] Reference Figure 2 and Figure 3 A circuit board 13 is provided on the outside of the positioning shaft 6. A positioning hole 14 is provided inside the circuit board 13. The positioning shaft 6 is adapted to the positioning hole 14. The mounting frame 5 is slidably connected to the inside of the support plate 3. In this embodiment, the positioning shaft 6 plays the role of snapping the circuit board 13, the positioning hole 14 plays the role of facilitating the snapping of the positioning shaft 6, and the mounting frame 5 plays the role of fixing the circuit board 13.

[0030] Reference Figure 2 , Figure 3 and Figure 4 The support plate 3 and the connecting plate 4 are both fixedly connected to the inside of the outer shell 1. The threaded cylinder 9 is fixedly connected to one side of the connecting plate 4. The fixing screw 10 is adapted to the threaded cylinder 9. The baffle 11 is snapped onto the outside of the fixing screw 10. In this embodiment, the threaded cylinder 9 serves to connect the fixing screw 10, the fixing screw 10 serves to fix the baffle 11, and the baffle 11 serves to fix the mounting frame 5.

[0031] Reference Figure 5 and Figure 6A heat dissipation device 15 is provided on one side of the outer casing 1. The heat dissipation device 15 includes a through groove 16 and a mounting cylinder 17. A mesh plate 18 is provided inside the through groove 16. A fixing frame 19 is provided inside the mounting cylinder 17. A connecting cylinder 20 is provided on one side of the fixing frame 19. A high-speed motor 21 is provided inside the connecting cylinder 20. A fan blade 22 is provided on the output shaft of the high-speed motor 21. A mounting plate 23 is provided on one side of the fan blade 22. An air outlet 24 is opened inside the mounting plate 23. In this embodiment, the through groove 16 facilitates the entry of air, the mesh plate 17 blocks debris, and the fixing frame 19 securely mounts the connecting cylinder 20.

[0032] Reference Figure 5 and Figure 6 The through groove 16 is opened inside the outer shell 1, the mesh plate 18 is fixedly connected to the inside of the through groove 16, and the mounting cylinder 17 is fixedly connected to one side of the outer shell 1. The outer shell 1 communicates with the mounting cylinder 17. In this embodiment, the mounting cylinder 17 serves as a mounting bracket 19.

[0033] Reference Figure 5 and Figure 6 The fixing frame 19 and the mounting plate 23 are both fixedly connected to the inside of the mounting cylinder 17. The connecting cylinder 20 is fixedly connected to one side of the fixing frame 19. The high-speed motor 21 is fixedly connected to the inside of the connecting cylinder 20. In this embodiment, the connecting cylinder 20 serves to fix the high-speed motor 21, and the high-speed motor 21 serves to drive the fan blade 22 to rotate.

[0034] The principle of this utility model is as follows:

[0035] When the circuit board 13 needs to be repaired, first use a tool to rotate the fixing screw 10 to separate the fixing screw 10 from the threaded cylinder 9, and pull the fixing screw 10 out from the inside of the connecting hole 12. Then the baffle 11 can be removed. After the baffle 11 is separated from the outer shell 1, the mounting frame 5 is pulled out. The mounting frame 5 will slide inside the support plate 3 until the mounting frame 5 is completely pulled out from the inside of the support plate 3. Then use a tool again to remove the fixing bolt 8 from the inside of the through hole 7, so that the mounting frame 5 is separated from the outside. During the separation of the fixing frame, the positioning shaft 6 will be pulled out from the inside of the positioning hole 14. After the mounting frame 5 is separated from the outside, the circuit board 13 can be taken out from the inside of the mounting frame 5, and then the circuit board 13 can be repaired.

[0036] After the circuit board 13 is repaired, align the positioning hole 14 with the positioning shaft 6 and insert the positioning shaft 6 into the positioning hole 14. Then, assemble the mounting frame 5. After the mounting frame 5 is assembled, the through hole 7 is concentric. The fixing bolt 8 can be installed into the through hole 7 and tightened with a tool. Then, insert the tightened mounting frame 5 into the support plate 3. The support plate 3 fixes the mounting frame 5 and the circuit board 13 into the housing 1. Finally, install the baffle 11 on one side of the housing 1 and use the fixing screw 10 to pass through the connecting hole 12. After the fixing screw 10 passes through the connecting hole 12, it enters the threaded cylinder 9. Use a tool to thread the fixing screw 10 and the threaded cylinder 9 to fix the baffle 11. The repair of the circuit board 13 is now complete.

[0037] During the operation of circuit board 13, high-speed motor 21 starts working and drives fan blade 22 to rotate rapidly. The rapidly rotating fan blade 22 can draw out the hot air generated inside the outer casing 1 and discharge it from the air outlet 24. During the process of hot air discharge, the air outside the outer casing 1 will enter the interior of the outer casing 1 through the mesh plate 18 to achieve internal and external air circulation, discharge the high-temperature air inside the outer casing 1, and allow the cooler air outside to enter the interior of the outer casing 1. While removing the heat generated by circuit board 13, it can reduce the temperature of circuit board 13 and thus extend the service life of circuit board 13.

[0038] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A multilayer circuit board with anti-interference capability, characterized in that: The device includes an outer shell (1), and a fixing device (2) is provided inside the outer shell (1). The fixing device (2) includes a support plate (3) and a connecting plate (4). A mounting frame (5) is provided inside the support plate (3). A positioning shaft (6) is provided inside the mounting frame (5). A through hole (7) is provided inside the mounting frame (5). A fixing bolt (8) is provided inside the through hole (7). A threaded cylinder (9) is provided on one side of the connecting plate (4). A fixing screw (10) is provided inside the threaded cylinder (9). A baffle (11) is provided on one side of the fixing screw (10). A connecting hole (12) is provided inside the baffle (11).

2. The anti-interference multilayer circuit board according to claim 1, characterized in that: A circuit board (13) is provided on the outside of the positioning shaft (6), and a positioning hole (14) is provided inside the circuit board (13). The positioning shaft (6) is adapted to the positioning hole (14), and the mounting frame (5) is slidably connected to the inside of the support plate (3).

3. The anti-interference multilayer circuit board according to claim 1, characterized in that: The support plate (3) and the connecting plate (4) are both fixedly connected to the inside of the outer shell (1). The threaded cylinder (9) is fixedly connected to one side of the connecting plate (4). The fixing screw (10) is adapted to the threaded cylinder (9). The baffle (11) is snapped onto the outside of the fixing screw (10).

4. The anti-interference multilayer circuit board according to claim 1, characterized in that: A heat dissipation device (15) is provided on one side of the outer casing (1). The heat dissipation device (15) includes a through groove (16) and a mounting cylinder (17). A mesh plate (18) is provided inside the through groove (16). A fixing frame (19) is provided inside the mounting cylinder (17). A connecting cylinder (20) is provided on one side of the fixing frame (19). A high-speed motor (21) is provided inside the connecting cylinder (20). A fan blade (22) is provided on the output shaft of the high-speed motor (21). A mounting plate (23) is provided on one side of the fan blade (22). An air outlet (24) is opened inside the mounting plate (23).

5. The anti-interference multilayer circuit board according to claim 4, characterized in that: The through groove (16) is opened inside the outer shell (1), the mesh plate (18) is fixedly connected inside the through groove (16), the mounting cylinder (17) is fixedly connected to one side of the outer shell (1), and the outer shell (1) communicates with the mounting cylinder (17).

6. The anti-interference multilayer circuit board according to claim 4, characterized in that: The fixing frame (19) and the mounting plate (23) are both fixedly connected to the inside of the mounting cylinder (17), the connecting cylinder (20) is fixedly connected to one side of the fixing frame (19), and the high-speed motor (21) is fixedly connected to the inside of the connecting cylinder (20).

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