A flexible circuit board that is easy to wire

Abstract

This utility model discloses a flexible circuit board that facilitates wiring, belonging to the field of flexible circuit board technology. It includes a flexible substrate, a fixing block at the input end of the flexible substrate, a flexible support component on the side of the fixing block away from the input end, and a docking block at the output end of the flexible substrate. This utility model utilizes a flexible support component, employing double-disc soft steel wires arranged on the upper and lower surfaces of the flexible substrate. This combination of flexibility and support allows the soft steel wires to bend freely with the flexible substrate, while also supporting and protecting the substrate during use. This significantly reduces swaying and suppresses vibration, preventing damage from frequent collisions with the device housing and avoiding micro-cracks in the internal circuitry caused by prolonged large-amplitude vibration. It achieves the function of supporting and protecting the flexible substrate in various postures.

Description

Technical Field

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

[0002] Flexible circuit boards are printed circuit boards made of flexible insulating substrates. Due to their lightness, thinness and flexibility, they are widely used in electronic products to meet the design needs of smaller and higher density installations. They include flexible connecting boards that connect two conventional circuit boards. In order to facilitate wiring, these flexible circuit boards do not have any rigid structure at the terminals, only "gold fingers".

[0003] Existing flexible circuit boards that are easy to wire have a lack of rigid support in their interface areas. When used in environments with repeated bending or vibration, fatigue accumulation is likely to occur at the circuit connection points, which can cause micro-cracks in the internal circuits and eventually lead to open circuits.

[0004] Meanwhile, because the flexible circuit board is lightweight, it will shake synchronously with the equipment during the shaking process. If it frequently collides with the equipment housing during the process, it may be damaged. Utility Model Content

[0005] The purpose of this invention is to solve the problem that in the prior art, when flexible circuit boards are used in repeated bending or vibration environments, micro-cracks will appear in the internal circuits, and the flexible circuit boards will be damaged due to collisions with the equipment housing when the equipment shakes. Therefore, this invention proposes a flexible circuit board that is easy to wire.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A flexible circuit board for easy wiring includes a flexible substrate, a fixing block is provided at the input end of the flexible substrate, a flexible support component is provided on the side of the fixing block away from the input end of the flexible substrate, and a docking block is provided at the output end of the flexible substrate.

[0008] The flexible support assembly includes two soft steel wires arranged in a disc shape. One end of each soft steel wire is fixedly connected to a fixed block, and the other end of each soft steel wire is fixedly connected to a sliding insert.

[0009] Preferably, the soft steel wires are disposed opposite to each other on the upper and lower surfaces of the flexible substrate, with the upper soft steel wire and the lower soft steel wire having opposite folding directions.

[0010] Preferably, the sliding plug has a through hole at its center that matches the flexible substrate, and a plurality of plugs are fixedly connected to the side of the sliding plug facing the docking block, and an arc-shaped groove is formed on the opposite side of the plugs.

[0011] Preferably, the mating block has a matching plug hole on the side facing the sliding plug, and a mounting groove is provided on the side of the matching arc-shaped slot inside the plug hole.

[0012] Preferably, a spring is fixedly connected to one end of the mounting groove away from the arc-shaped slot, and an arc-shaped locking block is fixedly connected to the other end of the spring away from the mounting groove, with the arc-shaped locking block slidably connected to the mounting groove.

[0013] Preferably, the arc-shaped card block has limiting ears fixedly connected to both sides in the horizontal direction, and the size of the limiting ears matches the mounting groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model sets up a flexible support component, which uses double-disc soft steel wires as the flexible support component, respectively arranged on the upper and lower surfaces of the flexible substrate. It has both plasticity and support, and can bend arbitrarily with the flexible substrate. It can also support and protect the flexible substrate during use, greatly reducing the shaking amplitude and suppressing vibration, avoiding damage caused by frequent collisions of the flexible substrate with the equipment housing, and avoiding micro-cracks in the internal circuitry caused by long-term large-amplitude vibration. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a flexible circuit board that facilitates wiring, as proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the flexible support component in the unfolded state of a flexible circuit board that facilitates wiring, as proposed in this utility model.

[0018] Figure 3 This is a structural assembly diagram of a flexible circuit board that facilitates wiring, as proposed in this utility model.

[0019] Figure 4 This is a cross-sectional view of the connecting block and sliding plug in a flexible circuit board that facilitates wiring, as proposed in this utility model.

[0020] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0021] Figure 6 This is a schematic diagram of the arc-shaped card block in a flexible circuit board that facilitates wiring, as proposed in this utility model.

[0022] In the diagram: 1. Flexible substrate; 2. Fixing block; 3. Connecting block; 4. Soft steel wire; 5. Sliding insert; 6. Through hole; 7. Insertion bolt; 8. Arc-shaped slot; 9. Insertion hole; 10. Mounting groove; 11. Spring; 12. Arc-shaped block; 13. Limiting ear. 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 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.

[0024] Reference Figure 1-6 A flexible circuit board that facilitates wiring includes a flexible substrate 1, a fixing block 2 at the input end of the flexible substrate 1, a flexible support component at the side of the fixing block 2 away from the input end of the flexible substrate 1, and a docking block 3 at the output end of the flexible substrate 1.

[0025] The flexible support assembly includes two disc-shaped soft steel wires 4, one end of which is fixedly connected to the fixing block 2, and the other end of which is fixedly connected to a sliding insert block 5.

[0026] Furthermore, the soft steel wires 4 are disposed opposite to each other on the upper and lower surfaces of the flexible substrate 1, with the upper soft steel wire 4 and the lower soft steel wire 4 having opposite folding directions.

[0027] It should be noted that the material of the mild steel wire 4 is low carbon steel, which is the existing process.

[0028] A further advantage of the above approach is that by setting the soft steel wires 4 with opposite folding directions, the effective support area can be increased when the soft steel wires 4 are unfolded as follows: Figure 2 After reaching the indicated state, the flexible steel wire 4, with its high plasticity, can be bent arbitrarily with the flexible substrate 1, thereby achieving the function of supporting and protecting the flexible substrate 1 in various postures. At the same time, although the flexible steel wire 4 has high plasticity, its flexibility is much lower than that of the flexible substrate 1. Therefore, during use, the support of the flexible steel wire 4 can effectively reduce the swaying amplitude of the flexible substrate 1 when subjected to vibration, thereby avoiding damage caused by frequent collisions of the flexible substrate 1 with the equipment housing, and avoiding micro-cracks in the internal circuitry caused by long-term large-amplitude vibration.

[0029] Furthermore, the sliding plug 5 has a through hole 6 at its center that matches the flexible substrate 1, and multiple plugs 7 are fixedly connected to the side of the sliding plug 5 facing the docking block 3. An arc-shaped slot 8 is opened on the opposite side of the plug 7.

[0030] Furthermore, the mating block 3 has a matching plug 7 insertion hole 9 on the side facing the sliding plug 5. The insertion hole 9 has a mounting groove 10 on the side matching the arc-shaped slot 8. A spring 11 is fixedly connected to the end of the mounting groove 10 away from the arc-shaped slot 8. An arc-shaped block 12 is fixedly connected to the end of the spring 11 away from the mounting groove 10. The arc-shaped block 12 is slidably connected to the mounting groove 10. Limiting ears 13 are fixedly connected to both sides of the arc-shaped block 12 in the horizontal direction. The size of the limiting ears 13 matches the mounting groove 10.

[0031] A further advantage of the above approach is that after the connecting block 3 and the sliding insert block 5 are inserted, they are fixed by the engagement of the arc-shaped locking block 12 and the arc-shaped locking groove 8, thus preventing the soft steel wire 4 from retracting.

[0032] When using this invention, the two ends of the flexible substrate 1 are soldered to the two rigid circuit boards that need to be connected. Because the flexible support component is set at the input end of the flexible substrate 1, it will not prevent the operator from bending the flexible substrate 1 when wiring.

[0033] After welding is completed, the staff pulls the sliding block 5 to move it along the flexible substrate 1 and inserts the mating block 3 into the sliding block 5.

[0034] During the movement, the through hole 6 prevents friction with the flexible substrate 1, thus preventing damage to the flexible substrate 1 due to friction. At the same time, the soft steel wires 4 on the upper and lower surfaces of the flexible substrate 1 unfold and bend under the action of tension through their own flexibility.

[0035] During the insertion process, the plug 7 presses the arc-shaped locking block 12 to retract it into the mounting groove 10. When the plug 7 moves to the state where the arc-shaped locking groove 8 is aligned with the arc-shaped locking block 12, the arc-shaped locking block 12 extends under the elastic force of the spring 11 and engages with the arc-shaped locking groove 8 to achieve fixation, thus preventing the soft steel wire 4 from retracting.

[0036] After the insertion is completed, the staff squeezes the soft steel wire 4 by hand to make it fit the flexible substrate 1, thereby achieving the function of supporting and protecting the flexible substrate 1 in various postures.

[0037] During use, the soft steel wire 4 has strong plasticity but much lower flexibility than the flexible substrate 1. The support of the soft steel wire 4 can effectively reduce the swaying amplitude of the flexible substrate 1 when it is subjected to vibration, thereby avoiding damage caused by frequent collisions of the flexible substrate 1 with the equipment housing, and avoiding micro-cracks in the internal circuitry caused by long-term large-amplitude vibration.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A flexible wiring board facilitating wiring, comprising a flexible substrate (1), characterized by, The input end of the flexible substrate (1) is provided with a fixing block (2), and a flexible support component is provided on the side of the fixing block (2) away from the input end of the flexible substrate (1). The output end of the flexible substrate (1) is provided with a docking block (3). The flexible support assembly includes two soft steel wires (4) arranged in a disc shape. One end of the soft steel wire (4) is fixedly connected to the fixing block (2), and the other end of the soft steel wire (4) is fixedly connected to a sliding plug (5).

2. The flexible wiring board according to claim 1, wherein: The soft steel wires (4) are arranged opposite to each other on the upper and lower surfaces of the flexible substrate (1), with the upper soft steel wire (4) and the lower soft steel wire (4) having opposite folding directions.

3. The flexible wiring board according to claim 1, wherein: The sliding plug (5) has a through hole (6) at its center that matches the flexible substrate (1). The sliding plug (5) has multiple plugs (7) fixedly connected to the side facing the docking block (3). The opposite side of the plugs (7) has an arc-shaped slot (8).

4. The flexible wiring board according to claim 3, wherein: The docking block (3) has a matching plug hole (9) on the side facing the sliding plug (5), and an installation groove (10) is provided on the side of the matching arc-shaped slot (8) in the plug hole (9).

5. The flexible wiring board according to claim 4, wherein: A spring (11) is fixedly connected to one end of the mounting groove (10) away from the arc-shaped slot (8), and an arc-shaped block (12) is fixedly connected to one end of the spring (11) away from the mounting groove (10). The arc-shaped block (12) is slidably connected to the mounting groove (10).

6. The flexible wiring board according to claim 5, wherein: The arc-shaped card block (12) is fixedly connected to the two sides of the horizontal direction with limiting ears (13), and the size of the limiting ears (13) matches the mounting groove (10).

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