A flexible circuit board with improved mounting stability

Abstract

The utility model relates to circuit board technical field especially is a kind of flexible circuit board of stable installation, including circuit board main part, the side fixedly connected with covering film of circuit board main part, the top fixedly connected with rotating shaft of circuit board main part, the top contact of circuit board main part has pressing rod, circuit board main part fixedly connected with rotating sleeve, the bottom contact of circuit board main part has rotating block, the below of circuit board main part is provided with fixed block, and fixed block and rotating block slidingly connect, the utility model is rotated by the mode of rotating knob and is driven connecting shaft, and this is driven rotating block and the fixed block of rotating block is fixed card block synchronous rotation, and this makes card block align the sliding slot of fixed block side edge being set, so that card block can be entered into the inside of rotary groove by sliding slot, and by the resilience of torsion spring card block is driven and separates sliding slot, and then circuit board main part is fixed, it is convenient to install and disassemble, and reduce the possibility of fixed structure damage.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, and in particular to a flexible circuit board that is stable to install. Background Technology

[0002] Flexible printed circuit boards (FPCs) are printed circuit boards made of flexible substrates. They are flexible, foldable, and twistable, and can adapt to complex three-dimensional spatial layouts.

[0003] Flexible circuit boards (PCBs) are characterized by their bendability, thinness, and high-temperature resistance. They support high-density wiring and dynamic bending, significantly saving space and weight. Widely used in consumer electronics, automotive, medical, and aerospace fields, they replace traditional wire harnesses, improve equipment reliability and design flexibility, and are a core component of miniaturized electronic products.

[0004] However, the following problems were found in the implementation of the relevant technology: Generally, flexible circuit boards are fixed by micro screws, but these micro screws require special disassembly tools to disassemble. Moreover, during the disassembly process, the user may use too much force, causing the slot that matches the screw tip to wear out and making the screw impossible to disassemble. In view of this, a flexible circuit board with stable installation is provided to overcome the above defects. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a flexible circuit board with stable installation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a stable flexible circuit board, comprising a circuit board body, a covering film fixedly connected to one side of the circuit board body, a rotating shaft fixedly connected to the top of the circuit board body, a pressure rod contacting the top of the circuit board body, a rotating sleeve fixedly connected to the circuit board body, a rotating block contacting the bottom of the circuit board body, a fixing block provided below the circuit board body, the fixing block and the rotating block being slidably connected, a torsion spring provided inside the rotating sleeve, a connecting shaft rotatably connected to the rotating sleeve, a stop block provided inside the rotating sleeve, and a knob fixedly connected to the top of the connecting shaft.

[0007] As a further description of the above technical solution: the top of the knob is provided with a slot, the number of knobs is four, and the pressure rod is rotatably connected to the rotating shaft, which facilitates the connection of the pressure rod through the rotating shaft.

[0008] As a further description of the above technical solution: the number of rotating sleeves is four, the side of the stop block is in contact with the side of the inner side of the rotating sleeve, and the stop block is slidably connected to the rotating sleeve, so as to fix the connecting shaft by the stop block and prevent the connecting shaft from falling off.

[0009] As a further description of the above technical solution: the stop block is fixedly connected to the connecting shaft, the inner side of the torsion spring is in contact with the surface of the connecting shaft, and the other end of the connecting shaft is fixedly connected to the top of the rotating block, so as to facilitate the fixing of the torsion spring through the connecting shaft.

[0010] As a further description of the above technical solution: one end of the torsion spring is fixedly connected to the top end of the inner side of the rotating sleeve, the other end of the torsion spring is fixedly connected to the top end of the stop block, and a locking block is fixedly connected to the inner side of the bottom of the rotating block, so as to fix the locking block by rotating the block.

[0011] As a further description of the above technical solution: the number of the locking blocks is two, the side of the fixing block is provided with a sliding groove, the side of the fixing block is provided with a rotating groove, the sliding groove and the rotating groove are connected to each other, so as to fix the locking blocks through the rotating groove.

[0012] As a further description of the above technical solution: the card block is slidably connected to the sliding groove, and the card block is rotatably connected to the rotating groove, so as to facilitate the connection of the card block through the sliding groove.

[0013] This utility model has the following beneficial effects: This utility model designs a stable flexible circuit board that combines components such as a rotating sleeve, a rotating block, and a fixing block. The user rotates the connecting shaft by turning a knob, which in turn rotates the rotating block and the locking block fixed to it. This causes the locking block to align with the sliding groove on the side of the fixing block, allowing it to enter the inner side of the rotating groove. The rebound action of the torsion spring causes the locking block to disengage from the sliding groove, thus fixing the main body of the circuit board. This facilitates installation and disassembly and reduces the possibility of damage to the fixing structure. The flexible circuit board designed in this utility model provides stable installation. By combining the circuit board body, cover film, pressure rod, and other components, the pressure rod can swing freely according to the user's needs through rotation with the rotating shaft. This allows the user to press down the cover film by rotating the pressure rod, thereby preventing problems caused by the cover film falling off. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded structural diagram of the main body of the circuit board of this utility model; Figure 3 This is an exploded view of the rotating sleeve of this utility model; Figure 4 This is a schematic diagram of the rotating block of this utility model.

[0015] Legend: 1. Circuit board body; 2. Covering film; 3. Knob; 4. Slot; 5. Pressure rod; 6. Rotating shaft; 7. Rotating sleeve; 8. Rotating block; 9. Connecting shaft; 10. Torsion spring; 11. Stop block; 12. Locking block; 13. Sliding groove; 14. Rotating groove; 15. Fixing block. Detailed Implementation

[0016] Reference Figures 1 to 4 This utility model provides a stable flexible circuit board, comprising a circuit board body 1, a cover film 2 glued to one side of the circuit board body 1, a rotating shaft 6 welded to the top of the circuit board body 1, a pressure rod 5 contacting the top of the circuit board body 1, a rotating sleeve 7 welded to the circuit board body 1, a rotating block 8 contacting the bottom of the circuit board body 1, a fixing block 15 disposed below the circuit board body 1, the fixing block 15 sliding with the rotating block 8, a torsion spring 10 disposed inside the rotating sleeve 7, a connecting shaft 9 rotating the rotating sleeve 7, and a stop block 11 disposed inside the rotating sleeve 7. A knob 3 is welded to the top of the connecting shaft 9. This utility model drives the connecting shaft 9 to rotate by rotating the knob 3, which in turn drives the rotating block 8 and the locking block 12 fixed to the rotating block 8 to rotate synchronously. This causes the locking block 12 to align with the sliding groove 13 opened on the side of the fixing block 15, so that the locking block 12 can enter the inner side of the rotating groove 14 through the sliding groove 13. Then, the rebound action of the torsion spring 10 drives the locking block 12 to disengage from the sliding groove 13, thereby fixing the circuit board body 1, which is convenient for installation and disassembly and reduces the possibility of damage to the fixing structure.

[0017] As a further implementation of the above technical solution: the top of the knob 3 is provided with a slot 4, there are four knobs 3, and the pressure rod 5 is rotatably connected to the rotating shaft 6, so as to facilitate the connection of the pressure rod 5 through the rotating shaft 6.

[0018] As a further implementation of the above technical solution: the number of rotating sleeves 7 is four, the side of the stop 11 is in contact with the side of the inner side of the rotating sleeve 7, and the stop 11 is slidably connected to the rotating sleeve 7, so as to fix the connecting shaft 9 through the stop 11 and prevent the connecting shaft 9 from falling off.

[0019] As a further implementation of the above technical solution: the stop block 11 is fixedly connected to the connecting shaft 9, the inner side of the torsion spring 10 is in contact with the surface of the connecting shaft 9, and the other end of the connecting shaft 9 is fixedly connected to the top of the rotating block 8, so as to fix the torsion spring 10 through the connecting shaft 9.

[0020] As a further implementation of the above technical solution: one end of the torsion spring 10 is fixedly connected to the top end of the inner side of the rotating sleeve 7, the other end of the torsion spring 10 is fixedly connected to the top end of the stop block 11, and a locking block 12 is fixedly connected to the inner side of the bottom of the rotating block 8, so as to fix the locking block 12 by rotating the block 8.

[0021] As a further implementation of the above technical solution: there are two locking blocks 12, a sliding groove 13 is provided on the side of the fixing block 15, and a rotating groove 14 is provided on the side of the fixing block 15. The sliding groove 13 and the rotating groove 14 are connected to each other, so as to fix the locking block 12 through the rotating groove 14.

[0022] As a further implementation of the above technical solution: the card block 12 is slidably connected to the sliding groove 13, and the card block 12 is rotatably connected to the rotating groove 14, so that the card block 12 can be connected through the sliding groove 13.

[0023] Working principle: When using this utility model, the user should first rotate the knob located on the main body 1 of the circuit board. Using a tool, the user inserts the tool into the slot 4 at the top of the knob 3 and rotates it, causing the knob 3 and the connecting shaft 9 fixed inside the knob 3 to rotate. The rotation of the knob 3 causes the connecting shaft 9 to rotate synchronously, which in turn causes the rotating block 8 fixed to the other end of the connecting shaft 9 to rotate synchronously. The connecting shaft 9 is fixed with a stop block 11, which is located inside the rotating sleeve 7. A torsion spring 10 is also provided inside the rotating sleeve 7. Rotating the connecting shaft 9 causes the torsion spring 10 to twist. At this time, the locking block 12 fixed to the rotating block 8 will align with the sliding groove 13 opened on the side of the fixing block 15. The locking block 12 is moved to the inside of the rotating groove 14 by sliding the sliding groove 13 downwards. Then, the rotating block 8 is reset by the rebound action of the torsion spring 10. The reset of the rotating block 8 causes the locking block 12 to move along the rotating groove 14, thereby moving the locking block 12 away from the connection between the sliding groove 13 and the rotating groove 14, thus fixing the entire circuit board body 1. Then, the user rotates the pressure rod 5 to make the bottom end of the pressure rod 5 contact the surface of the cover film 2, and fixes the surface of the cover film 2 by the pressure rod 5 to prevent the cover film 2 from falling off due to the failure of the fixing adhesive. The rotating shaft 6 fixed at the top of the circuit board body 1 is used to connect the pressure rod 5.

[0024] In this utility model, the torsion spring 10, the pressure rod 5, the knob 3 and other components are all existing technologies, and their working principle is consistent with that of similar products on the market, so they will not be described in detail here.

[0025] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flexible circuit board with stable mounting, comprising a circuit board body (1), characterized in that: A cover film (2) is fixedly connected to one side of the circuit board body (1), a rotating shaft (6) is fixedly connected to the top of the circuit board body (1), a pressure rod (5) is in contact with the top of the circuit board body (1), a rotating sleeve (7) is fixedly connected to the circuit board body (1), a rotating block (8) is in contact with the bottom of the circuit board body (1), a fixing block (15) is provided below the circuit board body (1), the fixing block (15) is slidably connected to the rotating block (8), a torsion spring (10) is provided on the inner side of the rotating sleeve (7), a connecting shaft (9) is rotatably connected to the rotating sleeve (7), a stop block (11) is provided on the inner side of the rotating sleeve (7), and a knob (3) is fixedly connected to the top of the connecting shaft (9).

2. The flexible circuit board with stable installation according to claim 1, characterized in that: The top of the knob (3) is provided with a slot (4), and there are four knobs (3). The pressure rod (5) is rotatably connected to the rotating shaft (6).

3. The flexible circuit board with stable installation according to claim 1, characterized in that: The number of rotating sleeves (7) is four. The side of the stop block (11) is in contact with the side of the inner side of the rotating sleeve (7). The stop block (11) is slidably connected to the rotating sleeve (7).

4. A flexible circuit board with stable mounting according to claim 1, characterized in that: The stop block (11) is fixedly connected to the connecting shaft (9), the inner side of the torsion spring (10) is in contact with the surface of the connecting shaft (9), and the other end of the connecting shaft (9) is fixedly connected to the top of the rotating block (8).

5. A flexible circuit board with stable mounting according to claim 1, characterized in that: One end of the torsion spring (10) is fixedly connected to the top end of the inner side of the rotating sleeve (7), and the other end of the torsion spring (10) is fixedly connected to the top end of the stop block (11). A locking block (12) is fixedly connected to the inner side of the bottom of the rotating block (8).

6. A flexible circuit board with stable mounting according to claim 5, characterized in that: The number of the card blocks (12) is two. The side of the fixed block (15) is provided with a sliding groove (13) and a rotating groove (14). The sliding groove (13) and the rotating groove (14) are connected.

7. A stable flexible circuit board according to claim 6, characterized in that: The card block (12) is slidably connected to the sliding groove (13), and the card block (12) is rotatably connected to the rotating groove (14).

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