Tin-plated flexible circuit board

Abstract

The utility model discloses a tinned flexible circuit board, which comprises a circuit board body and a film-coated copper foil body, the side part of the circuit board body is provided with a positioning mechanism, and an adjusting mechanism is arranged above the positioning mechanism; the positioning mechanism comprises a positioning plate, a positioning groove is formed in the bottom of the positioning plate, a positioning spring is fixedly connected to the top of the inner wall of the positioning groove, a positioning strip is fixedly connected to the bottom of the positioning spring and located on the film-coated copper foil body, and the bottom of the positioning strip is of an arc-shaped structure. According to the tin-plated flexible circuit board, the protrusions can be clamped into the grooves through downward movement of the screw positioning plate, at the moment, the contact face of the film-coated copper foil body and the positioning strip is an arc face, when the film-coated copper foil body is bent, the film-coated copper foil body can be prevented from being scratched by edges and corners, and therefore the tin-plated flexible circuit board can be used for bending the film-coated copper foil body. And the effect of protecting the product can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, specifically a tin-plated flexible circuit board. Background Technology

[0002] Flexible printed circuit boards (FPCs), also known as flexible boards or simply "flexible boards," are printed circuit boards made of flexible insulating substrates. They possess many advantages that rigid printed circuit boards lack. For example, they can be freely bent, coiled, and folded. Using flexible circuit boards can significantly reduce the size of electronic products, meeting the needs of electronic products moving towards higher density, miniaturization, and higher reliability. Therefore, flexible circuit boards have been widely used in aerospace, military, mobile communications, laptops, computer peripherals, PDAs, digital cameras, and other fields and products.

[0003] In the prior art, a tin-plated flexible circuit board generally includes a circuit board body, and a conductive multilayer flexible coated copper foil is connected to the top of the circuit board body. The flexible coated copper foil can be flexibly bent. When fixed, the flexible coated copper foil is fixed to the circuit board by several bolts.

[0004] However, when the above device is in use, the coated copper foil will bend, and at this time, it tends to separate from the circuit board body. The bolt connection will cause some sliding damage to the coated copper foil, resulting in product damage.

[0005] Therefore, this utility model provides a tin-plated flexible circuit board. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a tin-plated flexible circuit board to solve the aforementioned problems.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a tin-plated flexible circuit board, comprising a circuit board body and a coated copper foil body, wherein a positioning mechanism is provided on the side of the circuit board body, and an adjustment mechanism is provided above the positioning mechanism;

[0008] The positioning mechanism includes a positioning plate, a positioning groove is provided at the bottom of the positioning plate, a positioning spring is fixedly connected to the top of the inner wall of the positioning groove, a positioning strip is fixedly connected to the bottom of the positioning spring, and the positioning strip is located on the coated copper foil body.

[0009] As a preferred technical solution of this utility model, the bottom of the positioning strip has an arc-shaped structure, the center of the arc surface of the positioning strip is far away from the coated copper foil body, and the arc surface of the positioning strip is in contact with the top surface of the coated copper foil body, which can achieve the effect of protecting the product.

[0010] As a preferred embodiment of the present invention, the coated copper foil body includes a copper foil layer, and the bottom of the copper foil layer is bonded with a coating layer by adhesive.

[0011] As a preferred technical solution of this utility model, the top of both the copper foil layer and the coating layer are engraved with grooves, and the bottom of the positioning strip is fixedly connected with a protrusion. The protrusion is integrally formed with the positioning strip, and the protrusion and the groove are slidably fitted and matched. The protrusion can fix the coated copper foil body.

[0012] As a preferred technical solution of this utility model, the adjustment mechanism includes two connecting plates that are fixedly connected to the side of the circuit board body respectively. Each of the two connecting plates has a connecting groove on its opposite side. A connecting block is slidably connected to the inner wall of the connecting groove. The connecting block is fixedly connected to the positioning plate. The setting of the connecting block can make the positioning strip press the coated copper foil body tightly.

[0013] As a preferred technical solution of this utility model, the bottom inner wall of the connecting groove is rotatably connected to a threaded rod through a bearing, and the connecting block and the threaded rod are connected by a thread. The threaded rod allows the positioning strip to press the coated copper foil body tightly.

[0014] As a preferred technical solution of this utility model, a rotating block is fixedly connected to the top of the threaded rod. The top of the rotating block has an internal hexagonal structure. The rotating block allows the connecting block to slide in the inner wall of the connecting groove.

[0015] As a preferred embodiment of this utility model, the top outer wall of the connecting plate is provided with a rotating groove, and the rotating block is located in the rotating groove. The rotating groove facilitates the installation of the circuit board at relevant positions.

[0016] Beneficial effects

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] (1) The tin-plated flexible circuit board can be moved down by the screw positioning plate so that the protrusion can be locked into the groove. At this time, the contact surface between the coated copper foil body and the positioning strip is an arc surface. When the coated copper foil body is bent, the sharp corners can be avoided to scratch the coated copper foil body. Therefore, the product protection effect can be achieved.

[0019] (2) The tin-plated flexible circuit board can rotate the threaded rod when the rotating block rotates. At this time, the connecting block slides in the inner wall of the connecting groove. The rotating groove can reduce the protrusion of the rotating block, which can facilitate the installation operation of the circuit board in relevant positions. Attached Figure Description

[0020] Figure 1This is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the copper foil layer structure of this utility model;

[0022] Figure 3 yes Figure 2 Enlarged structural diagram at point A;

[0023] Figure 4 This is a schematic diagram of the protruding structure of this utility model.

[0024] In the diagram: 1. Circuit board body; 2. Coated copper foil body; 3. Positioning plate; 4. Positioning groove; 5. Positioning spring; 6. Positioning strip; 7. Connecting plate; 8. Connecting groove; 9. Connecting block; 10. Threaded rod; 11. Rotating groove; 12. Rotating block; 13. Copper foil layer; 14. Coated layer; 15. Protrusion; 16. Groove. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-4 A tin-plated flexible circuit board includes a circuit board body 1 and a coated copper foil body 2. A positioning mechanism is provided on the side of the circuit board body 1, and an adjustment mechanism is provided above the positioning mechanism.

[0027] The positioning mechanism includes a positioning plate 3, a positioning groove 4 is provided at the bottom of the positioning plate 3, a positioning spring 5 is fixedly connected to the top of the inner wall of the positioning groove 4, a positioning strip 6 is fixedly connected to the bottom of the positioning spring 5, and the positioning strip 6 is located on the coated copper foil body 2.

[0028] As a preferred technical solution of this utility model, the bottom of the positioning strip 6 is an arc-shaped structure, the center of the arc surface of the positioning strip 6 is far away from the coated copper foil body 2, and the arc surface of the positioning strip 6 is in contact with the top surface of the coated copper foil body 2.

[0029] Specifically, by setting a positioning strip 6 with an arc-shaped structure, the sharp edges of the coated copper foil body 2 can be prevented from scratching the coated copper foil body 2 when it is bent.

[0030] As a further improvement of this utility model, the coated copper foil body 2 includes a copper foil layer 13, and a coating layer 14 is glued to the bottom of the copper foil layer 13.

[0031] As a further improvement of this utility model, the top of the copper foil layer 13 and the film layer 14 are both engraved with grooves 16, and the bottom of the positioning strip 6 is fixedly connected with a protrusion 15. The protrusion 15 and the positioning strip 6 are integrally formed, and the protrusion 15 and the groove 16 form a sliding fit and are compatible with each other.

[0032] Specifically, the protrusion 15 can be inserted into the groove 16, and the two form a mutual limiting relationship, which allows the coated copper foil body 2 to be fixed.

[0033] As a further improvement of this utility model, the adjustment mechanism includes two connecting plates 7 that are fixedly connected to the side of the circuit board body 1 respectively. Each of the two connecting plates 7 has a connecting groove 8 on its opposite side. A connecting block 9 is slidably connected to the inner wall of the connecting groove 8. The connecting block 9 is fixedly connected to the positioning plate 3.

[0034] Specifically, the connecting block 9 can slide in the inner wall of the connecting groove 8, which allows the position of the positioning plate 3 to be adjusted, and the positioning strip 6 to press the coated copper foil body 2 tightly.

[0035] As a further improvement of this utility model, the bottom inner wall of the connecting groove 8 is rotatably connected to a threaded rod 10 via a bearing, and the connecting block 9 is connected to the threaded rod 10 via a thread.

[0036] Specifically, the threaded rod 10 can apply force to the connecting block 9 when it rotates, at which time the connecting block 9 slides in the inner wall of the connecting groove 8, which allows the positioning strip 6 to press the coated copper foil body 2 tightly.

[0037] As a further improvement of this utility model, a rotating block 12 is fixedly connected to the top of the threaded rod 10, and the top of the rotating block 12 is provided with an internal hexagonal structure.

[0038] The threaded rod 10 can be rotated by rotating the rotating block 12, and the connecting block 9 slides in the inner wall of the connecting groove 8.

[0039] As a further improvement of this utility model, a rotating groove 11 is provided on the top outer wall of the connecting plate 7, and the rotating block 12 is located in the rotating groove 11.

[0040] Specifically, the rotating groove 11 reduces the protrusion 15 of the rotating block 12, making it easier to install the circuit board at relevant positions.

[0041] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0042] The working principle of this utility model is as follows: In use, after the coated copper foil body 2 is fixed to the circuit board body 1, the protrusion 15 is aligned with the groove 16. Rotating the rotating block 12 allows the rotating block 12 to rotate in the inner wall of the rotating groove 11. At this time, the threaded rod 10 can rotate. The rotation of the threaded rod 10 allows the connecting block 9 to slide in the inner wall of the connecting groove 8, which allows the positioning plate 3 to move down, so that the protrusion 15 can be locked into the groove 16. As the threaded rod 10 rotates, the elastic force of the positioning spring 5 can make the protrusion 15 on the positioning strip 6 stable in the groove 16. At this time, the contact surface between the coated copper foil body 2 and the positioning strip 6 is an arc surface. When the coated copper foil body 2 is bent, the sharp corners can be avoided from scratching the coated copper foil body 2. Therefore, the product protection effect can be achieved.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tin-plated flexible circuit board, comprising a circuit board body (1) and a coated copper foil body (2), characterized in that: A positioning mechanism is provided on the side of the circuit board body (1), and an adjustment mechanism is provided above the positioning mechanism. The positioning mechanism includes a positioning plate (3), a positioning groove (4) is provided at the bottom of the positioning plate (3), a positioning spring (5) is fixedly connected to the top of the inner wall of the positioning groove (4), a positioning strip (6) is fixedly connected to the bottom of the positioning spring (5), and the positioning strip (6) is located on the coated copper foil body (2).

2. The tin-plated flexible circuit board according to claim 1, characterized in that: The bottom of the positioning strip (6) has an arc-shaped structure, the center of the arc surface of the positioning strip (6) is far away from the copper foil body (2), and the arc surface of the positioning strip (6) is in contact with the top surface of the copper foil body (2).

3. The tin-plated flexible circuit board according to claim 1, characterized in that: The coated copper foil body (2) includes a copper foil layer (13), and a coating layer (14) is glued to the bottom of the copper foil layer (13).

4. The tin-plated flexible circuit board according to claim 3, characterized in that: The top of the copper foil layer (13) and the film layer (14) are both engraved with grooves (16), and the bottom of the positioning strip (6) is fixedly connected with a protrusion (15). The protrusion (15) and the positioning strip (6) are integrally formed, and the protrusion (15) and the groove (16) form a sliding fit and are compatible with each other.

5. A tin-plated flexible circuit board according to claim 1, characterized in that: The adjustment mechanism includes two connecting plates (7) that are fixedly connected to the side of the circuit board body (1) respectively. Each of the two connecting plates (7) has a connecting groove (8) on its opposite side. A connecting block (9) is slidably connected to the inner wall of the connecting groove (8). The connecting block (9) is fixedly connected to the positioning plate (3).

6. A tin-plated flexible circuit board according to claim 5, characterized in that: The bottom inner wall of the connecting groove (8) is rotatably connected to a threaded rod (10) via a bearing, and the connecting block (9) is connected to the threaded rod (10) via a thread.

7. A tin-plated flexible circuit board according to claim 6, characterized in that: The top of the threaded rod (10) is fixedly connected to a rotating block (12), and the top of the rotating block (12) is provided with an internal hexagonal structure.

8. A tin-plated flexible circuit board according to claim 7, characterized in that: The top outer wall of the connecting plate (7) is provided with a rotating groove (11), and the rotating block (12) is located in the rotating groove (11).

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