Flexible connection structure of FPC circuit board

Abstract

The utility model belongs to the technical field of FPC circuit board flexible connection, and especially relates to an FPC circuit board flexible connection structure comprising a flexible circuit board body, the right side of the flexible circuit board body is provided with a housing, the left side surface of the housing is provided with two through holes, the flexible circuit board body passes through each through hole, the inner wall of each through hole is fixedly provided with a protection pad, and the protection pad is fixedly connected with the housing. The inner wall of each protective pad is in contact with the outer surface of the flexible circuit board body, two baffles are fixedly installed on the inner side wall of the shell, and a lifting sliding block is slidably connected to the interior of each baffle; by arranging the flexible circuit board body, the shell, the through opening, the protective pad, the baffle, the lifting sliding block, the matched nut, the screw rod, the synchronous wheel, the synchronous belt, the fixing plate, the first pressing roller, the second pressing roller and the rotating shaft, the lifting sliding block is lifted through the screw rod and the matched nut, and the first pressing roller can be driven to wind the flexible circuit board body; and a second compression roller is matched to ensure that the flexible circuit board body is wound to a bearable angle.

Description

Technical Field

[0001] This utility model belongs to the field of flexible connection technology of FPC circuit boards, and specifically relates to a flexible connection structure for FPC circuit boards. Background Technology

[0002] FPC circuit boards, or flexible printed circuit boards, play a crucial role in electronic devices due to their flexible connections. FPC circuit boards possess excellent flexibility, allowing them to be bent, folded, and rolled, adapting to various complex spatial layouts and mechanical movement requirements. Because of their flexibility, FPC circuit boards can absorb energy through deformation when subjected to vibration and impact, reducing the possibility of damage and improving device reliability. With their unique advantages, the flexible connections of FPC circuit boards play an indispensable role in modern electronic devices.

[0003] The flexible connection of FPC circuit board generally has a certain length. When connecting other circuit boards or connectors, the excess length is inconvenient to roll up and will be directly placed on the circuit board or connector, making it difficult to control the length and causing some of the flexible structure of the FPC circuit board to be easily damaged.

[0004] To address the aforementioned issues, this application proposes a flexible connection structure for FPC circuit boards. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides a flexible connection structure for FPC circuit boards, which features convenient control over the length of the flexible portion of the FPC circuit board.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flexible connection structure for an FPC circuit board, comprising a flexible circuit board body, a housing on the right side of the flexible circuit board body, two openings on the left side of the housing, the flexible circuit board body passing through each opening, a protective pad fixedly installed on the inner wall of each opening, the inner wall of each protective pad contacting the outer surface of the flexible circuit board body, two baffles fixedly installed on the inner side wall of the housing, a lifting slider slidably connected inside each baffle, a matching nut fixedly installed on the inner wall of each lifting slider, a screw threadedly connected to the inner wall of each matching nut, a synchronous pulley fixedly installed on the outer surface of each screw, a synchronous belt drivingly connected to the outer surfaces of the two synchronous pulleys, a fixing plate fixedly installed on the outer surface of each lifting slider, the inner wall of each fixing plate contacting the outer surface of the baffle, a first pressure roller fixedly installed on one side of the two fixing plates close to each other, a second pressure roller disposed below the first pressure roller, and a rotating shaft fixedly installed on the inner wall of the second pressure roller.

[0007] As a preferred technical solution of the flexible connection structure of FPC circuit board of this utility model, a connector is inserted into the outer surface of the flexible circuit board, and the circuit board body is fixedly installed on the bottom surface of the connector.

[0008] As a preferred technical solution of the flexible connection structure of FPC circuit board of this utility model, a transparent plate is fixedly installed on the inner wall of the shell, and two guide plates are fixedly installed on the left side of the shell. Two mounting plates are provided on the outer side of each guide plate, and the outer surface of each mounting plate is in contact with the outer surface of the circuit board.

[0009] As a preferred technical solution of the flexible connection structure of FPC circuit board of this utility model, the upper surfaces of the two mounting plates are provided with slots, and the interior of each slot is engaged with the outer surface of the mounting plate.

[0010] As a preferred technical solution of the flexible connection structure of FPC circuit board of this utility model, the inner wall of the circuit board body is threaded with two connecting bolts, and the outer surface of each connecting bolt is threaded to the inner wall of the mounting plate.

[0011] As a preferred technical solution of the flexible connection structure of FPC circuit board of this utility model, each of the connecting bolts has a locking nut threaded on its outer surface, and the bottom surface of each locking nut is in contact with the upper surface of the mounting plate.

[0012] As a preferred technical solution of the flexible connection structure of FPC circuit board of this utility model, two first bearings are fixedly installed on the inner wall of the shell, and the inner wall of each first bearing is fixedly connected to the outer surface of the rotating shaft.

[0013] As a preferred technical solution of the flexible connection structure of FPC circuit board of this utility model, two second bearings are fixedly installed on the inner wall of the shell, and the inner wall of each second bearing is fixedly connected to the outer surface of the screw. A handwheel is fixedly installed on the outer surface of one of the screws.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting up a flexible circuit board body, outer shell, through-hole, protective pad, baffle, lifting slider, matching nut, screw, synchronous pulley, synchronous belt, fixing plate, first pressure roller, second pressure roller and rotating shaft, the lifting slider is raised and lowered by the screw and matching nut, which can drive the first pressure roller to roll up the flexible circuit board body. In addition, the second pressure roller ensures that the flexible circuit board body is rolled up to a bearable angle, avoiding damage to the flexible circuit board body. This achieves the purpose of controlling the length of the flexible circuit board body and protecting it, so as to avoid the problem of the flexible circuit board body length being inconvenient to control. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the circuit board body in this utility model;

[0018] Figure 3 This is a schematic diagram of the outer shell structure in this utility model;

[0019] Figure 4 This is a schematic diagram showing the disassembled mounting plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the first pressure roller in this utility model;

[0021] Figure 6 This is a schematic diagram of the lifting slider in this utility model;

[0022] In the diagram: 1. Flexible circuit board body; 2. Circuit board body; 3. Connecting bolt; 4. Housing; 5. Synchronous pulley; 6. Connector; 7. Transparent plate; 8. Screw; 9. Locking nut; 10. Protective pad; 11. Through port; 12. Mounting plate; 13. Second bearing; 14. Guide plate; 15. Slot; 16. First bearing; 17. Rotating shaft; 18. Second pressure roller; 19. Fixing plate; 20. First pressure roller; 21. Synchronous belt; 22. Handwheel; 23. Baffle; 24. Matching nut; 25. Lifting slider. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example

[0025] Please see Figure 1-6This utility model provides the following technical solution: a flexible connection structure for an FPC circuit board, including a flexible circuit board body 1, a housing 4 on the right side of the flexible circuit board body 1, and two openings 11 on the left side of the housing 4. The flexible circuit board body 1 passes through each opening 11, and a protective pad 10 is fixedly installed on the inner wall of each opening 11. The inner wall of each protective pad 10 is in contact with the outer surface of the flexible circuit board body 1. Two baffles 23 are fixedly installed on the inner side wall of the housing 4. A lifting slider 25 is slidably connected inside each baffle 23. A matching nut 24 is fixedly installed on the inner wall of each lifting slider 25. A screw 8 is threadedly connected to the inner wall of each matching nut 24. Synchronous pulleys 5 are fixedly installed on the outer surfaces of the two synchronous pulleys 5. The outer surfaces of the two synchronous pulleys 5 are connected to the synchronous belt 21 for transmission. A fixed plate 19 is fixedly installed on the outer surface of each lifting slider 25. The inner wall of each fixed plate 19 is in contact with the outer surface of the baffle 23. A first pressure roller 20 is fixedly installed on one side of the two fixed plates 19 that are close to each other. A second pressure roller 18 is provided below the first pressure roller 20. A rotating shaft 17 is fixedly installed on the inner wall of the second pressure roller 18. In this embodiment, the flexible circuit board 1 is passed through the through-hole 11 and the protective pad 10. The through-hole 11 allows the flexible circuit board 1 to pass through. Since the flexible circuit board 1 will move in the through-hole 11, the protective pad 10 provides protection during the movement of the flexible circuit board 1.

[0026] Specifically, a connector 6 is inserted into the outer surface of the flexible circuit board 1, and a circuit board 2 is fixedly installed on the bottom surface of the connector 6. In this embodiment, the connector 6 is used to connect the circuit board 2 and the flexible circuit board 1 by setting the connector 6 and the circuit board 2.

[0027] Specifically, a transparent plate 7 is fixedly installed on the inner wall of the outer shell 4, and two guide plates 14 are fixedly installed on the left side of the outer shell 4. Two mounting plates 12 are provided on the outer side of each guide plate 14, and the outer surface of each mounting plate 12 is in contact with the outer surface of the circuit board body 2. In this embodiment, by providing a transparent plate 7, the winding state of the flexible circuit board body 1 can be easily observed.

[0028] Specifically, the upper surfaces of the two mounting plates 12 are provided with slots 15, and the interior of each slot 15 is engaged with the outer surface of the mounting plate 12. In this embodiment, by providing slots 15 and guide plates 14, the lower mounting plate 12 does not have slots 15, but is used to support the guide plate 14. The guide plate 14 is inserted into the slots 15 to fix the outer shell 4.

[0029] Specifically, the inner wall of the circuit board body 2 is threaded with two connecting bolts 3, and the outer surface of each connecting bolt 3 is threaded to the inner wall of the mounting plate 12. In this embodiment, the connecting bolts 3 are mainly used to fix the mounting plate 12, and can also connect the mounting plate 12 to fix it.

[0030] Specifically, each connecting bolt 3 has a locking nut 9 threaded onto its outer surface, and the bottom surface of each locking nut 9 is in contact with the upper surface of the mounting plate 12. In this embodiment, the locking nut 9 is used to lock the connecting bolt 3 and stabilize the mounting plate 12.

[0031] Specifically, two first bearings 16 are fixedly installed on the inner wall of the outer casing 4. The inner wall of each first bearing 16 is fixedly connected to the outer surface of the rotating shaft 17. In this embodiment, the first bearings 16 support the rotation of the rotating shaft 17 and ensure the stable rotation of the rotating shaft 17.

[0032] Specifically, two second bearings 13 are fixedly installed on the inner wall of the outer casing 4. The inner wall of each second bearing 13 is fixedly connected to the outer surface of the screw 8. A handwheel 22 is fixedly installed on the outer surface of one of the screws 8. In this embodiment, the second bearing 13 can support the rotation of the screw 8 through the outer casing 4 so that the screw 8 can rotate inside the outer casing 4.

[0033] The working principle and usage process of this utility model are as follows: When using the flexible circuit board 1, it is generally necessary to insert the flexible circuit board 1 into the connector 6 or the circuit board 2. The excess part will be directly exposed and easily damaged. At this time, the outer shell 4 can be inserted into the mounting plate 12 to fix the outer shell 4. The mounting plate 12 can be adjusted according to the thickness of the circuit board 2. Then, the mounting plate 12 is fixed with the connecting bolt 3. Furthermore, the handwheel 22 can be manually turned to make the screw 8 rotate, which, together with the matching nut 24, performs helical transmission, converting the rotational motion into linear motion. The matching nut 24 drives the lifting slider 25 to descend, which drives the first pressure roller 20 to descend through the fixing plate 19. The first pressure roller 20 presses down on the flexible circuit board 1. The first pressure roller 20 and the second pressure roller 18 form a certain angle, which is controlled within the range that the flexible circuit board 1 can withstand. The amount of winding of the flexible circuit board 1 is determined by the height of the descent of the first pressure roller 20 and is controlled manually. When the appropriate connection length is reached, the screw 8 is stopped.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flexible connection structure for an FPC circuit board, characterized in that: The system includes a flexible circuit board body (1), with a housing (4) on the right side of the flexible circuit board body (1). Two openings (11) are opened on the left side of the housing (4). The flexible circuit board body (1) passes through each opening (11). A protective pad (10) is fixedly installed on the inner wall of each opening (11). The inner wall of each protective pad (10) is in contact with the outer surface of the flexible circuit board body (1). Two baffles (23) are fixedly installed on the inner side wall of the housing (4). A lifting slider (25) is slidably connected inside each baffle (23). A matching nut (24) is fixedly installed on the inner wall of each lifting slider (25). The inner wall of each matching nut (24) is threaded with a screw (8), and a synchronous pulley (5) is fixedly installed on the outer surface of each screw (8). The outer surfaces of the two synchronous pulleys (5) are connected to a synchronous belt (21) for transmission. The outer surface of each lifting slider (25) is fixedly installed with a fixing plate (19). The inner wall of each fixing plate (19) is in contact with the outer surface of the baffle (23). The two fixing plates (19) are fixedly installed with a first pressure roller (20) on their adjacent sides. A second pressure roller (18) is provided below the first pressure roller (20). A rotating shaft (17) is fixedly installed on the inner wall of the second pressure roller (18).

2. The flexible connection structure for an FPC circuit board according to claim 1, characterized in that: A connector (6) is inserted into the outer surface of the flexible circuit board (1), and a circuit board body (2) is fixedly installed on the bottom surface of the connector (6).

3. The flexible connection structure for an FPC circuit board according to claim 2, characterized in that: A transparent plate (7) is fixedly installed on the inner wall of the outer shell (4). Two guide plates (14) are fixedly installed on the left side of the outer shell (4). Two mounting plates (12) are provided on the outer side of each guide plate (14). The outer surface of each mounting plate (12) is in contact with the outer surface of the circuit board body (2).

4. The flexible connection structure for an FPC circuit board according to claim 3, characterized in that: Two of the mounting plates (12) have slots (15) on their upper surfaces, and the interior of each slot (15) is engaged with the outer surface of the mounting plate (12).

5. The flexible connection structure for an FPC circuit board according to claim 4, characterized in that: The inner wall of the circuit board body (2) is threaded with two connecting bolts (3), and the outer surface of each connecting bolt (3) is threaded to the inner wall of the mounting plate (12).

6. The flexible connection structure of an FPC circuit board according to claim 5, characterized in that: Each of the connecting bolts (3) has a locking nut (9) threaded onto its outer surface, and the bottom surface of each locking nut (9) is in contact with the upper surface of the mounting plate (12).

7. The flexible connection structure for an FPC circuit board according to claim 1, characterized in that: Two first bearings (16) are fixedly installed on the inner wall of the outer shell (4), and the inner wall of each first bearing (16) is fixedly connected to the outer surface of the rotating shaft (17).

8. The flexible connection structure for an FPC circuit board according to claim 1, characterized in that: Two second bearings (13) are fixedly installed on the inner wall of the outer casing (4). The inner wall of each second bearing (13) is fixedly connected to the outer surface of the screw (8). A handwheel (22) is fixedly installed on the outer surface of one of the screws (8).

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