Anti-static fpga flexible circuit board

Abstract

The utility model relates to flexible circuit board technical field especially a kind of FPCA flexible circuit board of antistatic, including insulating bottom plate, the top side of insulating bottom plate is provided with flexible circuit board body, the side of flexible circuit board body is equipped with a plurality of first positioning perforation, the top side of insulating bottom plate is fixedly connected with a plurality of positioning rod, the top side of insulating bottom plate is fixedly installed with two support frame.The utility model has the advantages of: through the cooperation setting of insulating bottom plate, flexible circuit board body, first positioning perforation, positioning rod, support frame, compression screw rod, guide rod, first compression plate, second compression plate, protective pad, second positioning perforation, positioning block, electrostatic shield net and ground wire, flexible circuit board body can be fixedly compressed at the same time to carry out comprehensive antistatic shielding operation to flexible circuit board body, so that it is more convenient to carry out antistatic operation to flexible circuit board body.

Description

Technical Field

[0001] This utility model relates to the field of flexible circuit board technology, and in particular to an anti-static FPCA flexible circuit board. Background Technology

[0002] Flexible printed circuit boards (FPCs) are highly reliable and extremely flexible printed circuit boards made with polyimide or polyester film as the substrate. They are characterized by high wiring density, light weight, thinness, and good bendability. FPCA is short for Flexible Printed Circuit Assembly, meaning the soldering or assembly of FPC components. FPCA uses flexible circuit boards for assembly, and the boards are bendable. They are used in high-end products such as mobile phones, where the assembly density is high, but the processing is difficult and the production cost is high. To avoid the influence of static electricity on FPCA flexible circuit boards, anti-static structures are usually added to the FPCA flexible circuit boards.

[0003] Patent document CN216291880U discloses an antistatic FPCA flexible circuit board. This antistatic FPCA flexible circuit board uses metal wires to intercept floating objects such as wool in the air to a certain extent, preventing the wool from entangled in the circuit board and causing frictional static electricity. At the same time, the metal wires can guide static electricity through metal rods, and through the conical discharge tip at the lower end of the metal rods, it is transferred to the grounded shell for release. The first and second insulating layers can prevent static charge from contacting the circuit board, avoiding the circuit board from being broken down. However, to achieve comprehensive antistatic operation on the flexible circuit board, this antistatic FPCA flexible circuit board requires a large number of metal rods and many circular holes to be made on the flexible circuit board. Flexible circuit boards are generally thin, which makes the process of making circular holes quite complicated. Furthermore, the process of connecting multiple metal rods with iron wires inside the circular holes is also quite complicated, making the operation of installing antistatic structures on the flexible circuit board quite troublesome. Therefore, an antistatic FPCA flexible circuit board is needed to solve the above 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-static FPCA flexible circuit board to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0006] To achieve the above objectives, one embodiment of this utility model provides an anti-static FPCA flexible circuit board, including an insulating base plate. A flexible circuit board body is disposed on the top side of the insulating base plate. A plurality of first positioning through holes are formed on one side of the flexible circuit board body. A plurality of positioning rods are fixedly connected to the top side of the insulating base plate. Two support frames are fixedly installed on the top side of the insulating base plate. A clamping threaded rod is threadedly connected to one side of one support frame, and a T-shaped guide rod is slidably connected to one side of the other support frame. A first clamping plate is fixedly connected to the bottom end of the guide rod. The bottom end of the threaded rod is rotatably connected to a second clamping plate via a bearing. Protective pads are fixedly installed on the bottom sides of both the first and second clamping plates. A second positioning through hole is opened on one side of each of the first and second clamping plates and the two protective pads. Two positioning slots are opened on one side of each of the first and second clamping plates. Positioning blocks are engaged with the inner walls of each of the four positioning slots. A U-shaped electrostatic shielding mesh is fixedly connected to one side of each of the four positioning blocks. A ground wire is provided on the electrostatic shielding mesh. A fixing structure for fixing the positioning blocks is provided on both the first and second clamping plates.

[0007] Preferably, one side of the positioning block has a fixing hole, and the fixing structure includes a fixing spring, a movable block and a fixing rod. The first pressing plate and the second pressing plate are both fixedly connected to one side of the fixing spring, one end of the fixing spring is fixedly connected to the movable block, and one side of the movable block is fixedly connected to the fixing rod.

[0008] Preferably, in any of the above solutions, the sizes of the first positioning hole and the second positioning hole are matched, and the positioning rod is matched with the size of the first positioning hole.

[0009] Preferably, in any of the above solutions, both the positioning slot and the positioning block are dovetail-shaped, and the size of the positioning block is adapted to the size of the positioning slot.

[0010] Preferably, in any of the above embodiments, the flexible circuit board body is located inside the U-shaped electrostatic shielding mesh, and the bottom end of the U-shaped electrostatic shielding mesh is in contact with the insulating base plate.

[0011] Preferably, in any of the above embodiments, a portion of the fixing rod is located inside the fixing spring, a portion of the fixing rod is located inside the positioning slot, the fixing rod is slidably connected to the first pressing plate, the fixing rod is slidably connected to the second pressing plate, and the size of the fixing rod is adapted to the fixing hole.

[0012] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0013] 1. Through the coordinated arrangement of an insulating base plate, a flexible circuit board body, a first positioning through hole, a positioning rod, a support frame, a clamping threaded rod, a guide rod, a first clamping plate, a second clamping plate, a protective pad, a second positioning through hole, a positioning block, an electrostatic shielding mesh, and a grounding wire, the flexible circuit board body can be clamped and fixed while undergoing comprehensive anti-static shielding, making the anti-static operation of the flexible circuit board body relatively simple.

[0014] 2. The combination of positioning slots, positioning blocks, fixing holes, fixing springs, movable blocks, and fixing rods makes the installation and disassembly of the U-shaped electrostatic shielding mesh relatively simple, and facilitates replacement when the U-shaped electrostatic shielding mesh is damaged. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model without the U-shaped electrostatic shielding mesh;

[0017] Figure 3 This is a structural schematic diagram of the U-shaped electrostatic shielding mesh and its connecting components of this utility model;

[0018] Figure 4 This is a structural schematic diagram of the threaded clamping rod and its connecting components of this utility model;

[0019] Figure 5 This is a structural schematic diagram of the guide rod and its connecting components of this utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the flexible circuit board body of this utility model.

[0021] In the diagram: 1-Insulating base plate, 2-Flexible circuit board body, 3-First positioning perforation, 4-Positioning rod, 5-Support frame, 6-Pressure threaded rod, 7-Guide rod, 8-First pressing plate, 9-Second pressing plate, 10-Protective pad, 11-Second positioning perforation, 12-Positioning slot, 13-Positioning block, 14-U-shaped electrostatic shielding mesh, 15-Ground wire, 16-Fixing structure, 1601-Fixing spring, 1602-Moving block, 1603-Fixing insert rod, 17-Fixing insertion hole. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0023] like Figures 1 to 6As shown, an anti-static FPCA flexible circuit board includes an insulating base plate 1. A flexible circuit board body 2 is disposed on the top side of the insulating base plate 1. The flexible circuit board body 2 is an FPCA flexible circuit board. Several first positioning through holes 3 are opened on one side of the flexible circuit board body 2. Several positioning rods 4 are fixedly connected to the top side of the insulating base plate 1. Two support frames 5 are fixedly installed on the top side of the insulating base plate 1. The support frames 5 are inverted L-shaped. A clamping threaded rod 6 is threadedly connected to one side of one support frame 5, and a guide with a cross-sectional shape of T is slidably connected to one side of the other support frame 5. Rod 7, guide rod 7 has a first clamping plate 8 fixedly connected to its bottom end, and a second clamping plate 9 is rotatably connected to the bottom end of the clamping threaded rod 6 via a bearing. The second clamping plate 9 corresponds to the position of the first clamping plate 8 and is sized to match the first clamping plate 8. Protective pads 10 are fixedly installed on the bottom sides of both the first clamping plate 8 and the second clamping plate 9. The protective pads 10 are made of rubber. A second positioning through hole 11 is provided on one side of the first clamping plate 8, the second clamping plate 9, and the two protective pads 10. Two positioning slots 12 are provided on one side of both the first clamping plate 8 and the second clamping plate 9. Each positioning slot 12 has a positioning block 13 attached to its inner wall. A U-shaped electrostatic shielding mesh 14 is fixedly connected to one side of each of the four positioning blocks 13. A grounding wire 15 is provided on the U-shaped electrostatic shielding mesh 14, allowing static electricity to be conducted to the ground. Both the first pressing plate 8 and the second pressing plate 9 have fixing structures 16 for securing the positioning blocks 13. When electrostatically shielding the flexible circuit board body 2, the flexible circuit board body 2 is first placed on the insulating base plate 1, and the positioning rod 4 passes through the first positioning through hole 3. Rotating the threaded rod 6 causes the second clamping plate 9 to move downwards. At this time, the first clamping plate 8 and the guide rod 7 move accordingly. The U-shaped electrostatic shielding mesh 14 moves downwards and its bottom side comes into contact with the insulating base plate 1. The flexible circuit board body 2 is located inside the U-shaped electrostatic shielding mesh 14. Electrostatic shielding is performed through the U-shaped electrostatic shielding mesh 14 and the ground wire 15. At this time, the positioning rod 4 is inserted into the second positioning through hole 11, and the protective pad 10 is tightly attached to the flexible circuit board body 2, thereby pressing and fixing the flexible circuit board body 2.

[0024] As an optional technical solution of this utility model, a fixing hole 17 is provided on one side of the positioning block 13. The fixing structure 16 includes a fixing spring 1601, a movable block 1602, and a fixing rod 1603. The fixing spring 1601 is fixedly connected to one side of both the first pressing plate 8 and the second pressing plate 9. The movable block 1602 is fixedly connected to one end of the fixing spring 1601. The fixing rod 1603 is fixedly connected to one side of the movable block 1602. When installing the U-shaped electrostatic shielding net 14, the movable block 1602 is first pulled to make it move. The fixing rod 1603 is moved out of the positioning slot 12. At this time, the fixing spring 1601 is in a stretched state. Then, the positioning block 13 is inserted into the positioning slot 12. At this time, the fixing rod 1603 corresponds to the fixing hole 17. Under the reaction force of the fixing spring 1601, the fixing rod 1603 is inserted into the fixing hole 17, thereby completing the installation of the U-shaped electrostatic shielding net 14. This makes the installation of the U-shaped electrostatic shielding net 14 relatively simple, and it is also easy to disassemble the U-shaped electrostatic shielding net 14.

[0025] As an optional technical solution of this utility model, the first positioning hole 3 and the second positioning hole 11 are matched in size, and the positioning rod 4 is matched in size with the first positioning hole 3, so that the positioning rod 4 can be smoothly connected with the first positioning hole 3 and the second positioning hole 11.

[0026] As an optional technical solution of this utility model, both the positioning slot 12 and the positioning block 13 are dovetail-shaped, and the size of the positioning block 13 is adapted to the positioning slot 12, so that the connection between the positioning block 13 and the positioning slot 12 is more secure.

[0027] As an optional technical solution of this utility model, the flexible circuit board body 2 is located inside the U-shaped electrostatic shielding mesh 4, and the bottom end of the U-shaped electrostatic shielding mesh 4 is in contact with the insulating base plate 1, which can perform a more comprehensive anti-static operation on the flexible circuit board body 2.

[0028] As an optional technical solution of this utility model, a part of the fixed insertion rod 1603 is located inside the fixed spring 1601, a part of the fixed insertion rod 1603 is located inside the positioning slot 12, the fixed insertion rod 1603 is slidably connected to the first pressing plate 8, the fixed insertion rod 1603 is slidably connected to the second pressing plate 9, and the size of the fixed insertion rod 1603 is adapted to the fixed insertion hole 17, so that the fixed insertion rod 1603 can move smoothly and be inserted into the fixed insertion hole 17.

[0029] An anti-static FPCA flexible circuit board works as follows:

[0030] The flexible circuit board body 2 is placed on the insulating base plate 1, and the positioning rod 4 passes through the inside of the first positioning through hole 3. Then, the clamping threaded rod 6 is rotated to move the second clamping plate 9 downward. At this time, the first clamping plate 8 and the guide rod 7 move accordingly. At this time, the U-shaped electrostatic shielding mesh 14 moves downward and the bottom side of the U-shaped electrostatic shielding mesh 14 is attached to the insulating base plate 1. At this time, the positioning rod 4 is inserted into the inside of the second positioning through hole 11, and the protective pad 10 is tightly attached to the flexible circuit board body 2, thereby pressing and fixing the flexible circuit board body 2. At this time, the flexible circuit board body 2 is located inside the U-shaped electrostatic shielding mesh 14, and electrostatic shielding is performed through the U-shaped electrostatic shielding mesh 14 and the ground wire 15.

[0031] In summary, this anti-static FPCA flexible circuit board, through the coordinated arrangement of the insulating base plate 1, flexible circuit board body 2, first positioning through hole 3, positioning rod 4, support frame 5, clamping threaded rod 6, guide rod 7, first clamping plate 8, second clamping plate 9, protective pad 10, second positioning through hole 11, positioning block 13, electrostatic shielding mesh 14, and ground wire 15, can perform comprehensive anti-static shielding operation on the flexible circuit board body 2 while clamping and fixing it, making the anti-static operation of the flexible circuit board body 2 relatively simple. Through the coordinated arrangement of the positioning slot 12, positioning block 13, fixing hole 17, fixing spring 1601, movable block 1602, and fixing rod 1603, the installation and removal of the U-shaped electrostatic shielding mesh 14 is relatively simple, and the replacement operation is convenient when the U-shaped electrostatic shielding mesh 14 is damaged.

Claims

1. An anti-static FPCA flexible circuit board, characterized in that: Includes an insulating base plate (1), on the top side of which a flexible circuit board body (2) is provided, and on one side of the flexible circuit board body (2) are several first positioning through holes (3). Several positioning rods (4) are fixedly connected to the top side of the insulating base plate (1). Two support frames (5) are fixedly installed on the top side of the insulating base plate (1). One side of one support frame (5) is threadedly connected to a clamping thread rod (6), and the other side of the support frame (5) is slidably connected to a guide rod (7) with a T-shaped cross-section. The bottom end of the guide rod (7) is fixedly connected to a first clamping plate (8), and the bottom end of the clamping thread rod (6) is rotatably connected to a second clamping plate (9) through a bearing. The first clamping plate (8) is rotatably connected to the second clamping plate (9). 8) Protective pads (10) are fixedly installed on the bottom side of the first pressing plate (8), the second pressing plate (9) and the two protective pads (10) are provided with second positioning through holes (11) on one side. Two positioning slots (12) are provided on one side of the first pressing plate (8) and the second pressing plate (9). Positioning blocks (13) are snapped into the inner walls of the four positioning slots (12). A U-shaped electrostatic shielding mesh (14) is fixedly connected to one side of the four positioning blocks (13). A ground wire (15) is provided on the U-shaped electrostatic shielding mesh (14). A fixing structure (16) for fixing the positioning blocks (13) is provided on the first pressing plate (8) and the second pressing plate (9).

2. The anti-static FPCA flexible circuit board according to claim 1, characterized in that: The positioning block (13) has a fixed insertion hole (17) on one side. The fixing structure (16) includes a fixed spring (1601), a movable block (1602) and a fixed insertion rod (1603). The first pressing plate (8) and the second pressing plate (9) are both fixedly connected to a fixed spring (1601). One end of the fixed spring (1601) is fixedly connected to a movable block (1602). One side of the movable block (1602) is fixedly connected to a fixed insertion rod (1603).

3. The antistatic FPCA flexible circuit board according to claim 2, characterized in that: The first positioning hole (3) and the second positioning hole (11) are matched in size, and the positioning rod (4) is matched in size with the first positioning hole (3).

4. The antistatic FPCA flexible circuit board according to claim 3, characterized in that: The positioning slot (12) and the positioning block (13) are both dovetail-shaped, and the positioning block (13) is adapted to the size of the positioning slot (12).

5. The anti-static FPCA flexible circuit board according to claim 4, characterized in that: The flexible circuit board body (2) is located inside the U-shaped electrostatic shielding mesh (14), and the bottom end of the U-shaped electrostatic shielding mesh (14) is in contact with the insulating base plate (1).

6. The antistatic FPCA flexible circuit board according to claim 5, characterized in that: A portion of the fixed insert (1603) is located inside the fixed spring (1601), a portion of the fixed insert (1603) is located inside the positioning slot (12), the fixed insert (1603) is slidably connected to the first pressing plate (8), the fixed insert (1603) is slidably connected to the second pressing plate (9), and the size of the fixed insert (1603) is adapted to the fixed insertion hole (17).

Images