Firmly-assembled FPC circuit board

Abstract

The utility model belongs to the technical field of FPC circuit boards, in particular to a stably assembled FPC circuit board, which comprises an FPC circuit board body and a connecting plate, and further comprises a clamping mechanism arranged on the connecting plate and used for clamping the FPC circuit board body; a T-shaped groove allowing the I-shaped connecting block to be embedded therein is formed in the connecting plate, and the outer wall of the I-shaped connecting block is tightly attached to the inner wall of the T-shaped groove; according to the utility model, the connecting plates are fixed at the end parts of the FPC circuit board bodies through the arranged clamping mechanisms, and then the I-shaped connecting blocks are matched with the T-shaped grooves to enable the connecting plates to be in butt joint, so that the assembly of the two FPC circuit board bodies can be realized, the stability is higher, and meanwhile, the folding use of the FPC circuit board bodies is not influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of FPC circuit boards, and particularly relates to an FPC circuit board with stable assembly. Background Art

[0002] An FPC circuit board, that is, a flexible circuit board, also known as a "flexible board", is a printed circuit made of a flexible insulating substrate. The flexible circuit provides excellent electrical performance, can meet the design requirements of smaller and higher-density installations, and also helps to reduce the assembly process and enhance reliability. The flexible circuit board can be freely bent, wound, and folded, can withstand millions of dynamic bends without damaging the wires, can be arranged arbitrarily according to the spatial layout requirements, and can move and stretch arbitrarily in three-dimensional space, so as to achieve the integration of component assembly and wire connection. The flexible circuit board can greatly reduce the volume and weight of electronic products and meet the needs of the development of electronic products towards high density, miniaturization, and high reliability.

[0003] The cost of flexible circuit boards is relatively high, and the commonly used circuit boards on the market are all small pieces. It is necessary to assemble the flexible circuit boards according to the specific product requirements. At present, most of them are assembled with bolts, which are easily damaged during installation and disassembly.

[0004] Based on the above technical problems, it is found that in the prior art, the Chinese utility model patent with the authorization announcement number CN219351997U discloses "a flexible circuit board convenient for assembly", including a flexible panel. Both the right and rear ends of the flexible panel are fixedly connected with a plurality of sliding boxes. Openings are arranged at both the left and right ends of the sliding box. Baffles are arranged at the front and rear ends on the right side of the top of the sliding box. A slider is slidably connected to the inner wall of the sliding box. A winding wire is fixedly connected to the right end of the slider. Fixing wires are fixedly connected to the front and rear sides of the other end of the winding wire. A spring piece is arranged at the other end of the fixing wire. A reel is arranged on the outer wall of the spring piece.

[0005] For the flexible circuit boards in the prior art including the above, although they have the feature of being easy to assemble, in actual use, the assembly interval requirements for the flexible circuit boards are relatively high. Because when the assembly interval of the flexible circuit board is too small, the spring piece is not stressed and cannot tighten the slider, so the stability of the assembly cannot be guaranteed. In addition, to ensure stability, the spring piece needs to be in a state of always tightening the slider, and the flexible circuit board cannot be folded for use.

[0006] To solve the above problems, a stable-assembled FPC circuit board is proposed in this application. Utility Model Content

[0007] To solve the above problems existing in the prior art, the utility model provides a stable-assembled FPC circuit board, which has the characteristics of convenient use and stable assembly.

[0008] To achieve the above object, the present utility model provides the following technical solutions: A firmly assembled FPC circuit board, including an FPC circuit board body and a connecting plate, further comprising:

[0009] A clamping mechanism, which is arranged on the connecting plate and is used for clamping the FPC circuit board body;

[0010] An I-shaped connecting block, there is a T-shaped groove on the connecting plate for the I-shaped connecting block to be embedded, and the outer wall of the I-shaped connecting block closely fits the inner wall of the T-shaped groove.

[0011] As a preferred technical solution of the present utility model, the clamping mechanism includes:

[0012] A fixed clamping plate, there is a connecting groove on the connecting plate, and the fixed clamping plate is fixed on the inner bottom surface of the connecting groove;

[0013] A movable clamping plate, the movable clamping plate is distributed relative to the fixed clamping plate, and the movable clamping plate is located above the fixed clamping plate;

[0014] A second screw, which is installed on the connecting plate by means of thread screwing, and the lower end of the second screw is embedded in the connecting groove.

[0015] As a preferred technical solution of the present utility model, there is a V-shaped groove on the fixed clamping plate, and the cross section of the movable clamping plate is an inverted triangular structure and fits with the V-shaped groove.

[0016] As a preferred technical solution of the present utility model, the fixed clamping plate is a rubber member.

[0017] As a preferred technical solution of the present utility model, the I-shaped connecting block includes:

[0018] A T-shaped block, two T-shaped blocks are symmetrically distributed, and adjustment cavities are provided on the opposite surfaces of the two T-shaped blocks;

[0019] An adjustment block, the adjustment block is located inside the two T-shaped blocks, and both ends of the adjustment block are respectively embedded in the corresponding adjustment cavities to form a telescopic structure;

[0020] A first screw, which is installed on the T-shaped block by means of thread screwing.

[0021] As a preferred technical solution of the present utility model, the outer wall of the adjustment block closely fits the inner wall of the adjustment cavity.

[0022] As a preferred technical solution of the present utility model, it further includes:

[0023] The flexible clamping block, which has a semi-cylindrical structure, is fixed on the outer wall of the T-shaped block, and a limiting clamping groove for the flexible clamping block to be embedded is provided on the inner wall of the T-shaped groove.

[0024] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0025] In the present utility model, the connecting plate is fixed to the end of the FPC circuit board body through the provided clamping mechanism, and then the connecting plate is docked by using the I-shaped connecting block and the T-shaped groove, so that the assembly of two FPC circuit board bodies can be realized, with higher stability, and at the same time, it does not affect the folding use of the FPC circuit board body.

[0026] Some additional advantages and beneficial effects of this application will be given in part in the following description, some will become obvious from the following description, or will be understood through the practice of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0028] Figure 1 is a schematic structural diagram of the present utility model;

[0029] Figure 2 is an axonometric structural diagram of the connecting plate in the present utility model;

[0030] Figure 3 is the present utility model Figure 1 an enlarged structural diagram of the clamping mechanism therein;

[0031] Figure 4 is the present utility model Figure 2 an enlarged structural diagram of part A therein.

[0032] In the figure: 1, FPC circuit board body; 2, connecting plate; 21, connecting groove; 22, T-shaped groove; 23, limiting clamping groove; 3, I-shaped connecting block; 31, T-shaped block; 311, adjustment cavity; 32, adjustment block; 33, first screw; 34, flexible clamping block; 4, clamping mechanism; 41, fixed clamping plate; 411, V-shaped groove; 42, movable clamping plate; 43, second screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the protection scope of the present utility model.

[0034] Please refer to Figures 1 - 4 , the present utility model provides the following technical solutions: A stably assembled FPC circuit board, including an FPC circuit board body 1 and a connecting plate 2, further including: a clamping mechanism 4 and an I-shaped connecting block 3.

[0035] Furthermore, as shown in Figure 1 , Figure 2 and Figure 4 , in this embodiment, the clamping mechanism 4 is arranged on the connecting plate 2 for clamping the FPC circuit board body 1. There is a T-shaped groove 22 on the connecting plate 2 for the I-shaped connecting block 3 to be embedded, and the outer wall of the I-shaped connecting block 3 closely fits the inner wall of the T-shaped groove 22. After adopting the above solution, during use, the connecting plate 2 is fixed to the end of the FPC circuit board body 1 through the arranged clamping mechanism 4, and then the connecting plate 2 is docked by using the I-shaped connecting block 3 in cooperation with the T-shaped groove 22, so that the assembly of two FPC circuit board bodies 1 can be realized, with higher stability, and at the same time, it does not affect the folding use of the FPC circuit board body 1.

[0036] Optionally, as shown in Figure 1 and Figure 3 , in this embodiment, the clamping mechanism 4 includes: a fixed clamping plate 41, a movable clamping plate 42 and a second screw 43. There is a connecting groove 21 on the connecting plate 2. The fixed clamping plate 41 is fixed to the inner bottom surface of the connecting groove 21. The movable clamping plate 42 is distributed relative to the fixed clamping plate 41, and the movable clamping plate 42 is located above the fixed clamping plate 41. The second screw 43 is installed on the connecting plate 2 by means of screw thread engagement, and the lower end of the second screw 43 is embedded in the connecting groove 21. After adopting the above solution, when installing the connecting plate 2, first insert the end of the FPC circuit board body 1 into the inner space between the movable clamping plate 42 and the fixed clamping plate 41, and then tighten the second screw 43, so that the second screw 43 pushes the movable clamping plate 42 to move downward under the screw thread engagement, and cooperate with the fixed clamping plate 41 to clamp the FPC circuit board body 1, so as to realize the stable connection between the connecting plate 2 and the FPC circuit board body 1.

[0037] It should be noted that the second screw 43 is rotatably connected to the movable clamping plate 42 by conventional means, including but not limited to using a bearing for the rotatable connection of the movable clamping plate 42. Additionally, the second screw 43 can also achieve this solution without using any structure to connect to the movable clamping plate 42. After tightening the second screw 43, by pressing down the movable clamping plate 42 with the second screw 43, the FPC circuit board body 1 can also be clamped by the movable clamping plate 42 and the fixed clamping plate 41.

[0038] Preferably, as shown by Figure 1 and Figure 3 in this embodiment, the fixed clamping plate 41 has a V-shaped groove 411, and the cross-section of the movable clamping plate 42 is an inverted triangular structure that fits with the V-shaped groove 411. After adopting the above solution, after the movable clamping plate 42 and the fixed clamping plate 41 clamp the FPC circuit board body 1, the clamped part of the FPC circuit board body 1 will be bent, further improving the connection stability between the connecting plate 2 and the FPC circuit board body 1.

[0039] Preferably, as shown by Figure 1 and Figure 3 in this embodiment, the fixed clamping plate 41 is a rubber member. Therefore, the fixed clamping plate 41 has flexibility. After the movable clamping plate 42 and the fixed clamping plate 41 clamp the FPC circuit board body 1, the fixed clamping plate 41 will be bent, ensuring the connection stability between the connecting plate 2 and the FPC circuit board body 1 and also improving the safety of the FPC circuit board body 1.

[0040] It should be noted that the fixed clamping plate 41 is preferably fixed to the inner bottom surface of the connection groove 21 by adhesive bonding.

[0041] Preferably, as shown by Figure 1 , Figure 2 and Figure 4 in this embodiment, the I-shaped connection block 3 includes: a T-shaped block 31, an adjustment block 32, and a first screw 33. The two T-shaped blocks 31 are symmetrically distributed, and adjustment cavities 311 are formed on the opposing surfaces of the two T-shaped blocks 31. The adjustment block 32 is located inside the two T-shaped blocks 31, and both ends of the adjustment block 32 are respectively embedded into the corresponding adjustment cavities 311 to form a telescopic structure. The first screw 33 is installed on the T-shaped block 31 by means of screw thread engagement. After adopting the above solution, when necessary, the first screw 33 can be loosened first, the embedding amount of the adjustment block 32 can be adjusted, and the assembly spacing between the two FPC circuit board bodies 1 can be adjusted. After the adjustment is completed, the first screw 33 is tightened again for locking.

[0042] Preferably, as shown by Figure 1 , Figure 2 and Figure 4As shown, in this embodiment, the outer wall of the adjustment block 32 is closely attached to the inner wall of the adjustment cavity 311 to ensure the stability of the adjustment block 32 and prevent the adjustment block 32 from jittering.

[0043] Preferably, Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, it further includes: a flexible clamping block 34. The flexible clamping block 34 with a semi-cylindrical structure is fixed on the outer wall of the T-shaped block 31. There is a limit clamping groove 23 on the inner wall of the T-shaped groove 22 for the flexible clamping block 34 to be embedded. After adopting the above solution, after the T-shaped block 31 is embedded in the T-shaped groove 22, the flexible clamping block 34 is embedded in the limit clamping groove 23 to further limit the T-shaped block 31 and prevent the T-shaped block 31 from loosening accidentally, further improving the stability of the assembly of the two FPC circuit board bodies 1.

[0044] It should be noted that the flexible clamping block 34 is preferably a rubber component, which has flexibility, facilitating the embedding of the T-shaped block 31 into the T-shaped groove 22 and also facilitating the flexible clamping block 34 to be embedded into the limit clamping groove 23 to form a clamping.

[0045] The components not described in detail in this article are prior art.

[0046] The working principle and usage process of the present utility model: For the FPC circuit board body 1 of the present utility model, during use, the connecting plate 2 is fixed to the end of the FPC circuit board body 1 through the provided clamping mechanism 4. The end of the FPC circuit board body 1 is inserted into the inner space between the movable clamping plate 42 and the fixed clamping plate 41. Then, the second screw 43 is tightened, and the second screw 43 pushes the movable clamping plate 42 downward under the action of screw thread engagement, cooperating with the fixed clamping plate 41 to clamp the FPC circuit board body 1, thereby realizing the stable connection between the connecting plate 2 and the FPC circuit board body 1;

[0047] Then, the connecting plate 2 is docked by using the I-shaped connecting block 3 and the T-shaped groove 22. The T-shaped block 31 is embedded in the T-shaped groove 22. At this time, the flexible clamping block 34 is embedded in the limit clamping groove 23 to further limit the T-shaped block 31, thus realizing the assembly of the two FPC circuit board bodies 1, with higher stability and not affecting the folding use of the FPC circuit board body 1 at the same time.

[0048] Finally, it should be noted that: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A firmly assembled FPC circuit board, comprising an FPC circuit board body (1) and a connecting board (2), characterized in that, Further included are: A clamping mechanism (4) which is arranged on the connecting plate (2) and is used for clamping the FPC circuit board body (1); An I-shaped connecting block (3), wherein a T-shaped groove (22) for the I-shaped connecting block (3) to be embedded is formed on the connecting plate (2), and the outer wall of the I-shaped connecting block (3) is in close fit with the inner wall of the T-shaped groove (22).

2. The firmly assembled FPC circuit board according to claim 1, wherein: The clamping mechanism (4) includes: A fixed clamping plate (41), wherein a connecting groove (21) is formed on the connecting plate (2), and the fixed clamping plate (41) is fixed to the inner bottom surface of the connecting groove (21); A movable clamping plate (42) which is distributed relative to the fixed clamping plate (41), and the movable clamping plate (42) is located above the fixed clamping plate (41); A second screw (43) which is installed on the connecting plate (2) by means of screw thread engagement, and the lower end of the second screw (43) is embedded in the connecting groove (21).

3. The firmly assembled FPC circuit board according to claim 2, wherein: A V-shaped groove (411) is formed on the fixed clamping plate (41), and the cross section of the movable clamping plate (42) is an inverted triangular structure and is fitted with the V-shaped groove (411).

4. The firmly assembled FPC circuit board according to claim 3, characterized in that: The fixed clamping plate (41) is a rubber member.

5. A firmly assembled FPC circuit board according to claim 1, characterized in that: The I-shaped connecting block (3) includes: T-shaped blocks (31), two of the T-shaped blocks (31) are symmetrically distributed, and adjustment cavities (311) are formed on the opposite surfaces of the two T-shaped blocks (31); An adjustment block (32) which is located inside the two T-shaped blocks (31), and the two ends of the adjustment block (32) are respectively embedded in the corresponding adjustment cavities (311) to form a telescopic structure; A first screw (33) which is installed on the T-shaped block (31) by means of screw thread engagement.

6. The firmly assembled FPC circuit board according to claim 5, wherein: The outer wall of the adjustment block (32) is in close fit with the inner wall of the adjustment cavity (311).

7. A firmly assembled FPC circuit board according to claim 5, characterized in that: Further included is: A flexible block (34), the flexible block (34) with a semi-cylindrical structure is fixed on the outer wall of the T-shaped block (31), and a limit card slot (23) for the flexible block (34) to be embedded is formed on the inner wall of the T-shaped groove (22).

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