Printed circuit board (PCB) with multi-layer assembly structure

Abstract

The utility model relates to the technical field of PCBs (printed circuit boards), and discloses a PCB with a multilayer assembly structure, which comprises a bottom layer board, a top layer board is arranged at the top end of the bottom layer board, and a connecting PCB is arranged between the top layer board and the bottom layer board. According to the PCB with the multi-layer assembly structure, the movable sleeve, the rotating handle, the limiting groove, the limiting plate, the lead screw and the side plate are arranged, so that the top layer plate, the connecting PCB and the bottom layer plate are aligned, the rotating handle is rotated after alignment, the rotating handle drives the lead screw to rotate, the movable sleeve outside the lead screw is matched with the lead screw, the limiting plate is fixedly connected to one side of the movable sleeve, and therefore the top layer plate, the connecting PCB and the bottom layer plate are fixed. The screw rod rotates to enable the movable sleeve to drive the limiting plate to descend, so that the limiting plate can extrude the top end of the top layer plate, the top layer plate, the connecting PCB and the bottom layer plate are fixed, splicing of the bottom layer plate, the top layer plate and the connecting PCB is completed, and the problems that it is inconvenient to splice multiple layers of PCBs according to needs, and use is easily affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB boards, in particular to a PCB board with a multi-layer assembly structure. Background Art

[0002] Circuit board is an important electronic component. It is the support of electronic components and the provider of electrical connections for electronic components. Circuit boards can be divided into three major categories according to the number of layers: single-sided board, double-sided board, and multi-layer circuit board. Multi-layer board is a multi-layer wiring layer with a dielectric layer between every two layers. The dielectric layer can be made very thin.

[0003] There are still some problems with common multi-layer PCBs. For example, when assembling multi-layer PCBs, press assembly is usually used. Excessive pressure can easily damage the components on the PCBs, and it is inconvenient to disassemble the multi-layer PCBs, which can easily affect their use.

[0004] Therefore, we propose a PCB board with a multi-layer assembly structure to improve the above problems. Utility Model Content

[0005] The utility model aims to provide a PCB board with a multi-layer assembly structure to solve the problem in the above background technology that it is inconvenient to assemble the multi-layer PCB board according to the demand, which easily affects the use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PCB board with a multi-layer assembly structure, comprising a bottom board, a top board is arranged on the top of the bottom board, a connecting PCB board is arranged between the top board and the bottom board, fixing boards are arranged on both sides of the bottom end of the bottom board, and an assembly structure for facilitating the assembly of PCB boards is arranged on the top of the fixing board;

[0007] The assembly structure includes a movable sleeve, a limit plate and a screw rod. The top of the fixed plate is fixedly connected to a protective shell, the inside of the protective shell is movably connected to a screw rod, the top of the screw rod is fixedly connected to a turning handle, a limit groove is provided on the side of the protective shell close to the middle, a movable sleeve is provided on the outside of the screw rod, the side of the movable sleeve close to the middle is fixedly connected to the limit plate, and the two ends of the bottom of the limit plate are fixedly connected to side plates.

[0008] Preferably, the connecting PCB boards are provided in multiple groups, and the bottom board and the top board are PCB boards.

[0009] Preferably, the limiting plates are arranged on both sides of the top of the top plate, and the movable sleeve slides up and down inside the limiting groove.

[0010] Preferably, the outside of the screw rod is processed with an external thread, and the inside of the movable sleeve is processed with an internal thread matching the external thread.

[0011] Preferably, a connecting plate is fixedly connected between the fixed plates, frames are installed on both sides of the connecting plate, a micro fan is installed inside the frame, ventilation holes are respectively provided at the bottom and top ends of the frame, and a buffer pad is provided at the bottom end of the fixed plate.

[0012] Preferably, two groups of the frames are provided, and the frames are symmetrically distributed about the vertical center line of the connecting plate.

[0013] Preferably, the bottom end of the outside of the screw rod is fixedly connected to a fixing block, the outer wall of the fixing block is provided with a groove, the bottom end of the outer side of the protective shell is provided with a fixing bolt, and a rubber pad is provided between the fixing bolt and the fixing block.

[0014] Preferably, the grooves are provided in multiple groups, and the fixing bolts are embedded in the grooves on one side close to the middle.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the PCB board with a multi-layer assembly structure not only facilitates the splicing of multi-layer PCB boards and facilitates the cooling of the PCB boards, but also prevents the screw rod from rotating accidentally;

[0016] (1) By providing a movable sleeve, a turning handle, a limiting groove, a limiting plate, a screw rod and a side plate, the top plate, the connecting PCB board and the bottom plate are aligned. After alignment, the turning handle is turned to drive the screw rod to rotate. Since the movable sleeve outside the screw rod and the screw rod cooperate with each other, and the limiting plate is fixedly connected to one side of the movable sleeve, the rotation of the screw rod can cause the movable sleeve to drive the limiting plate to descend, so that the limiting plate can squeeze the top of the top plate, fix the top plate, the connecting PCB board and the bottom plate, and complete the assembly of the bottom plate, the top plate and the connecting PCB board;

[0017] (2) By providing a frame, a connecting plate, a buffer pad, a micro fan and ventilation holes, the micro fan inside the frame is started, and the micro fan blows air to the bottom end of the bottom plate, so that the PCB board can be cooled as a whole, and the temperature of the PCB board as a whole is prevented from being too high, which causes the PCB board as a whole to be damaged during use. The ventilation holes at the bottom and top of the frame can facilitate the internal ventilation of the frame, and the buffer pad can buffer the bottom end of the fixed plate;

[0018] (3) By providing a fixing block, a fixing bolt and a rubber pad, when the limit plate is lowered to a suitable position, the fixing bolt is rotated so that one side of the fixing bolt is embedded in the groove, so that the screw rod can be limited and fixed by the fixing bolt and the groove, preventing the screw rod from accidentally rotating and causing the limit plate to rise and fall, affecting the overall operation of the PCB board. The grooves are distributed in a circular shape with equal spacing outside the fixing block. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the side panel structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the enlarged structure of the framework of the utility model;

[0022] Figure 4 For the utility model Figure 1 Schematic diagram of the enlarged cross-section structure at point A in the middle.

[0023] In the figure: 1. bottom plate; 2. frame; 3. connecting plate; 4. fixing plate; 5. buffer pad; 6. protective shell; 7. fixing block; 8. movable sleeve; 9. turning handle; 10. limiting groove; 11. top plate; 12. connecting PCB board; 13. limiting plate; 14. screw rod; 15. side plate; 16. micro fan; 17. ventilation hole; 18. fixing bolt; 19. rubber pad. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: Please refer to Figure 1-4 A PCB board with a multi-layer assembly structure includes a bottom board 1, a top board 11 is arranged on the top of the bottom board 1, a connecting PCB board 12 is arranged between the top board 11 and the bottom board 1, and fixing boards 4 are arranged on both sides of the bottom end of the bottom board 1, and an assembly structure for facilitating the assembly of the PCB boards is arranged on the top of the fixing board 4;

[0026] The assembly structure includes a movable sleeve 8, a limit plate 13 and a screw rod 14. The top of the fixed plate 4 is fixedly connected to the protective shell 6, the inner part of the protective shell 6 is movably connected to the screw rod 14, the top of the screw rod 14 is fixedly connected to the turning handle 9, the protective shell 6 is provided with a limit groove 10 on one side near the middle, the outer part of the screw rod 14 is provided with a movable sleeve 8, the movable sleeve 8 is fixedly connected to the limit plate 13 on one side near the middle, and the two ends of the bottom of the limit plate 13 are fixedly connected to the side plates 15;

[0027] The connecting PCB board 12 is provided with multiple groups, the bottom board 1 and the top board 11 are PCB boards, the limiting plates 13 are provided on both sides of the top of the top board 11, the movable sleeve 8 slides up and down inside the limiting groove 10, the outer surface of the screw rod 14 is processed with an external thread, and the inner surface of the movable sleeve 8 is processed with an internal thread matching the external thread;

[0028] Specifically, Figure 1 and Figure 2 As shown, the top plate 11, the connecting PCB board 12 and the bottom plate 1 are aligned, and the handle 9 is turned after alignment, and the handle 9 drives the screw rod 14 to rotate. Since the movable sleeve 8 outside the screw rod 14 cooperates with the screw rod 14, and the limit plate 13 is fixedly connected to one side of the movable sleeve 8, the rotation of the screw rod 14 can make the movable sleeve 8 drive the limit plate 13 to descend, so that the limit plate 13 can squeeze the top of the top plate 11, fix the top plate 11, the connecting PCB board 12 and the bottom plate 1, and complete the assembly of the bottom plate 1, the top plate 11 and the connecting PCB board 12.

[0029] Embodiment 2: A connecting plate 3 is fixedly connected between the fixing plates 4, frames 2 are installed on both sides of the connecting plate 3, a micro fan 16 is installed inside the frame 2, ventilation holes 17 are respectively provided at the bottom and top of the frame 2, a buffer pad 5 is provided at the bottom of the fixing plate 4, two groups of frames 2 are provided, and the frames 2 are symmetrically distributed about the vertical center line of the connecting plate 3;

[0030] Specifically, Figure 1 and Figure 3 As shown, the micro fan 16 inside the frame 2 is started, and the micro fan 16 blows air to the bottom end of the bottom plate 1, so that the PCB board can be cooled as a whole to prevent the temperature of the PCB board from being too high, which may cause the PCB board as a whole to be damaged during use. The ventilation holes 17 at the bottom and top ends of the frame 2 can facilitate the internal ventilation of the frame 2, and the buffer pad 5 can buffer the bottom end of the fixed plate 4.

[0031] Embodiment 3: The bottom end of the outer side of the screw rod 14 is fixedly connected with a fixing block 7, and a groove is provided on the outer side wall of the fixing block 7. A fixing bolt 18 is provided at the bottom end of the outer side of the protective shell 6, and a rubber pad 19 is provided between the fixing bolt 18 and the fixing block 7. There are multiple groups of grooves, and the fixing bolt 18 is embedded in the inner side of the groove near the middle.

[0032] Specifically, Figure 1 and Figure 4 As shown, when the limit plate 13 is lowered to a suitable position, the fixing bolt 18 is rotated so that one side of the fixing bolt 18 is embedded in the groove, so that the screw rod 14 can be limited and fixed by the fixing bolt 18 and the groove to prevent the screw rod 14 from accidentally rotating and causing the limit plate 13 to rise and fall, affecting the overall operation of the PCB board. The grooves are distributed in a circular shape with equal spacing on the outside of the fixed block 7.

[0033] Working principle: When splicing, the utility model aligns the top plate 11, the connecting PCB board 12 and the bottom plate 1. After the alignment, the turning handle 9 is turned, and the turning handle 9 drives the screw rod 14 to rotate. Since the movable sleeve 8 outside the screw rod 14 cooperates with the screw rod 14, and the limit plate 13 is fixedly connected to one side of the movable sleeve 8, the rotation of the screw rod 14 can make the movable sleeve 8 drive the limit plate 13 to descend, so that the limit plate 13 can squeeze the top of the top plate 11, fix the top plate 11, the connecting PCB board 12 and the bottom plate 1, so that the assembly can be completed. After the assembly, the fixing bolt 18 is rotated to make one side of the fixing bolt 18 embedded in the inside of the groove, so that the screw rod 14 can be limited and fixed by the fixing bolt 18 and the groove, to prevent the screw rod 14 from accidentally rotating to cause the limit plate 13 to rise and fall, affecting the overall work of the PCB board, and starting the micro fan 16. The micro fan 16 blows air to the bottom end of the bottom plate 1, so that the PCB board can be cooled as a whole, and the temperature of the PCB board as a whole is prevented from being too high, which causes the PCB board as a whole to be damaged during use.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A PCB board with a multi-layer assembly structure, comprising a bottom board (1), characterized in that: A top plate (11) is arranged at the top of the bottom plate (1), a connecting PCB board (12) is arranged between the top plate (11) and the bottom plate (1), fixing plates (4) are arranged on both sides of the bottom end of the bottom plate (1), and an assembly structure for facilitating the assembly of PCB boards is arranged at the top of the fixing plates (4); The assembly structure comprises a movable sleeve (8), a limiting plate (13) and a screw rod (14); the top end of the fixed plate (4) is fixedly connected to a protective shell (6); the inside of the protective shell (6) is movably connected to the screw rod (14); the top end of the screw rod (14) is fixedly connected to a turning handle (9); a limiting groove (10) is provided on a side close to the middle of the protective shell (6); a movable sleeve (8) is arranged on the outside of the screw rod (14); the side of the movable sleeve (8) close to the middle is fixedly connected to the limiting plate (13); and the two ends of the bottom of the limiting plate (13) are fixedly connected to side plates (15).

2. The PCB board with a multi-layer assembly structure according to claim 1, characterized in that: The connecting PCB boards (12) are provided in multiple groups, and the bottom board (1) and the top board (11) are PCB boards.

3. The PCB board with a multi-layer assembly structure according to claim 1, characterized in that: The limiting plates (13) are arranged on both sides of the top end of the top plate (11), and the movable sleeve (8) slides up and down inside the limiting groove (10).

4. The PCB board with a multi-layer assembly structure according to claim 1, characterized in that: The outside of the screw rod (14) is processed with an external thread, and the inside of the movable sleeve (8) is processed with an internal thread matching the external thread.

5. The PCB board with a multi-layer assembly structure according to claim 1, characterized in that: A connecting plate (3) is fixedly connected between the fixing plates (4), a frame (2) is installed on both sides of the connecting plate (3), a micro fan (16) is installed inside the frame (2), ventilation holes (17) are respectively provided at the bottom and top of the frame (2), and a buffer pad (5) is provided at the bottom end of the fixing plate (4).

6. The PCB board with a multi-layer assembly structure according to claim 5, characterized in that: The frames (2) are provided in two groups, and the frames (2) are symmetrically distributed about the vertical center line of the connecting plate (3).

7. The PCB board with a multi-layer assembly structure according to claim 1, characterized in that: The bottom end of the outside of the screw rod (14) is fixedly connected to a fixing block (7), the outer wall of the fixing block (7) is provided with a groove, the bottom end of the outer side of the protective shell (6) is provided with a fixing bolt (18), and a rubber pad (19) is provided between the fixing bolt (18) and the fixing block (7).

8. The PCB board with a multi-layer assembly structure according to claim 7, characterized in that: The grooves are provided in multiple groups, and the fixing bolts (18) are embedded in the grooves on one side close to the middle.

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