A flexible circuit board capable of being spliced and expanded

Abstract

The utility model discloses a flexible circuit board of splicing extension, including circuit board main part, be equipped with soft area and conductive gold finger on circuit board main part, be equipped with the conductive connecting groove of connecting with conductive gold finger on circuit board main part, the one side of circuit board main part close to conductive connecting groove is equipped with fixed sleeve, and the socket is equipped in fixed sleeve, and the both ends of fixed sleeve's inner chamber are equipped with reinforcing component, and reinforcing component, reinforcing component includes the moving link of sliding connection in fixed sleeve, and the one side of moving link close to socket is equipped with the clamping strip, and the both ends of conductive gold finger all are equipped with the clamping groove of connecting with clamping strip. The utility model discloses through the connection of conductive gold finger and conductive connecting groove on soft pad, has facilitated the splicing extension of adjacent flexible circuit board, has realized the fixed of conductive gold finger through reinforcing component, has improved the stability of adjacent flexible circuit board after splicing extension, has avoided the flexible circuit board splicing extension and has used the stress loose after.

Description

Technical Field

[0001] This utility model belongs to the field of flexible circuit board technology, and in particular relates to a flexible circuit board that can be spliced ​​and expanded. Background Technology

[0002] Flexible printed circuit boards (FPCs) are printed circuit boards made from flexible substrates. They possess unique advantages such as being thin, light, flexible, and foldable, allowing them to adapt to three-dimensional spatial layouts and making them widely used inside portable electronic devices. Expandable FPCs, built upon this foundation, allow multiple FPCs to be modularly connected through standardized interfaces or specific splicing processes. This design enables flexible functional expansion and free extension of length, significantly improving the freedom of circuit design and assembly efficiency.

[0003] Most existing flexible circuit boards that can be spliced ​​and expanded connect the conductive gold fingers on the flexible circuit board directly to the conductive grooves opened on the adjacent flexible circuit boards during splicing and expansion. However, no reinforcement structure is used to fix the connection part. The splicing and expansion of adjacent flexible circuit boards is not stable enough and they are easy to loosen under stress during use, resulting in poor performance. Therefore, based on actual usage, we have improved the above-mentioned existing technology. Utility Model Content

[0004] This invention overcomes the shortcomings of the prior art by providing a flexible circuit board that can be spliced ​​and expanded, thereby solving the problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a flexible circuit board that can be spliced ​​and expanded, comprising a circuit board body, a soft strip and conductive gold fingers on the circuit board body, a conductive connection groove for connecting with the conductive gold fingers on the circuit board body, a fixing sleeve installed on the side of the circuit board body near the conductive connection groove, an insertion port for the conductive gold fingers to pass through, and reinforcement components at both ends of the inner cavity of the fixing sleeve.

[0006] The reinforcement component includes a movable rod that is slidably connected within the fixed sleeve. A retaining strip is installed on the side of the movable rod near the socket, and slots for connecting to the retaining strip are provided at both ends of the conductive gold fingers.

[0007] In a preferred embodiment of the present invention, the reinforcement component further includes a handheld component fixed to the movable rod, the handheld component being located on the outside of the fixed sleeve.

[0008] In a preferred embodiment of this utility model, two sets of connecting rods are fixedly connected to the inner wall of the fixed sleeve. A U-shaped frame is fixedly connected to one end of each set of connecting rods near the moving rod. A roller is rotatably connected to the inner wall of each set of U-shaped frames.

[0009] In a preferred embodiment of this utility model, guide grooves are provided on both sides of the moving rod, and rollers are rotatably disposed in the guide grooves.

[0010] In a preferred embodiment of this utility model, a spring is fitted on the outer wall of the moving rod, and the spring is located between the U-shaped frame and the locking strip.

[0011] In a preferred embodiment of this invention, the size of the socket is larger than the size of the conductive gold finger, and insulating pads are provided on both sides of the inner wall of the socket.

[0012] In a preferred embodiment of this invention, the thickness and length of the conductive gold finger are equal to the thickness and length of the conductive connection groove, and the width of the conductive gold finger is greater than the width of the fixing sleeve.

[0013] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0014] This invention facilitates the splicing and expansion of adjacent flexible circuit boards by connecting the conductive gold fingers on the soft pad with the conductive connection groove. The pulling of the handpiece on the reinforcing component can drive the moving rod and the locking strip to move. With the rolling of the roller and the guide groove, the movement of the moving rod is guided. With the elasticity of the spring, the locking strip can connect or disconnect from the locking groove on the conductive gold fingers, thereby fixing the conductive gold fingers and improving the stability of adjacent flexible circuit boards after splicing and expansion, preventing the flexible circuit boards from loosening under force after splicing and expansion. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

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

[0017] Figure 2 This is a partial structural schematic diagram of a preferred embodiment of the present utility model;

[0018] Figure 3 This is a preferred embodiment of the present utility model. Figure 2 Enlarged structural diagram at point A in the middle;

[0019] Figure 4 This is a top view of the connection structure of the reinforcing component, fixing sleeve, and conductive gold finger, which is a preferred embodiment of the present invention.

[0020] In the diagram: 10. Circuit board body; 11. Flexible strip; 12. Conductive gold finger; 13. Fixing sleeve; 14. Conductive connection groove; 15. Socket; 16. Insulating pad; 20. Reinforcing component; 201. Handheld part; 202. Moving rod; 203. Locking strip; 204. Locking slot; 205. Guide groove; 206. Connecting rod; 207. U-shaped frame; 208. Roller; 209. Spring. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0022] This embodiment provides a flexible circuit board that can be spliced ​​and expanded. The flexible circuit board is connected to the conductive gold fingers 12 on the soft pad and the conductive connection groove 14, which facilitates the splicing and expansion of adjacent flexible circuit boards. By pulling the hand-held part 201 on the reinforcing component 20, the moving rod 202 and the locking strip 203 can be moved. With the rolling of the roller 208 and the guide groove 205, the movement of the moving rod 202 is guided. With the elasticity of the spring 209, the locking strip 203 can be connected or disconnected from the locking groove 204 opened on the conductive gold fingers 12, which realizes the fixation of the conductive gold fingers 12, improves the stability of adjacent flexible circuit boards after splicing and expansion, and prevents the flexible circuit boards from loosening under force after splicing and expansion.

[0023] Combination Figures 1 to 4 As shown, this embodiment of a splicable and expandable flexible circuit board includes a circuit board body 10, a flexible strip 11 and conductive gold fingers 12 on the circuit board body 10, a conductive connection groove 14 connected to the conductive gold fingers 12 on the circuit board body 10, a fixing sleeve 13 installed on the side of the circuit board body 10 near the conductive connection groove 14, an insertion port 15 is provided in the fixing sleeve 13 for the conductive gold fingers 12 to pass through, and a reinforcing component 20 is provided at both ends of the inner cavity of the fixing sleeve 13.

[0024] In this embodiment, the circuit board body 10 is an existing part. The soft strip 11 on the circuit board body 10 is flexible, and the conductive gold finger 12 can be connected to the conductive connection groove 14 opened on the adjacent circuit board body 10 to realize the splicing and expansion of adjacent circuit board bodies 10.

[0025] Specifically, the reinforcement component 20 in this embodiment includes a movable rod 202 slidably connected within the fixed sleeve 13. A retaining strip 203 is installed on the side of the movable rod 202 near the insertion port 15. Both ends of the conductive gold finger 12 are provided with slots 204 that connect with the retaining strip 203. When the retaining strip 203 is connected to the slot 204, it provides insulation and does not affect the splicing expansion and connection of adjacent circuit board bodies 10. When the conductive gold finger 12 is connected to the conductive connection groove 14 through the insertion port 15 in the fixed sleeve 13, the movable rod 202 of the reinforcement component 20 moves, and the retaining strip 203 connects with the slots 204 on the conductive gold finger 12, thereby reinforcing the conductive gold finger 12 in the fixed sleeve 13. This improves the stability of the reinforcement of adjacent flexible circuit boards after splicing expansion and prevents the flexible circuit boards from loosening under force after splicing expansion.

[0026] Furthermore, the reinforcement component 20 also includes a handheld component 201 fixed to the movable rod 202, the handheld component 201 being located on the outside of the fixed sleeve 13; the handheld component 201 facilitates the movement of the movable rod 202 by pulling with the fingers.

[0027] Combination Figure 1 and Figure 4 As shown, in this embodiment, the inner wall of the fixed sleeve 13 is fixedly connected to two sets of connecting rods 206. Each set of connecting rods 206 is fixedly connected to a U-shaped frame 207 at one end near the moving rod 202. Each set of U-shaped frames 207 has a roller 208 rotatably connected to its inner wall. Guide grooves 205 are provided on both sides of the moving rod 202, and the rollers 208 are rolled in the guide grooves 205. The rolling of the two sets of rollers 208 in the guide grooves 205 on the moving rod 202 guides the movement of the moving rod 202 and the locking strip 203.

[0028] In this embodiment, a spring 209 is sleeved on the outer wall of the moving rod 202. The spring 209 is located between the U-shaped frame 207 and the locking strip 203. Due to the elasticity of the spring 209, the spring 209 can always move towards one end of the insertion port 15. When the handpiece 201 is pulled outward, the moving rod 202 and the locking strip 203 are stored in the inner cavity of the fixed sleeve 13. At this time, the spring 209 is in a compressed state. When the conductive gold finger 12 is installed in the conductive connection groove 14, the groove 204 is aligned with the locking strip 203. After the handpiece 201 is released, the compressed spring 209 automatically resets, causing the locking strip 203 to move and connect with the groove 204, thus fixing the position of the conductive gold finger 12.

[0029] Furthermore, in this embodiment, the size of the socket 15 is larger than the size of the conductive gold finger 12, and insulating pads 16 are provided on both inner walls of the socket 15. The insulating pads 16 provide insulation and ensure the stability of the conductive gold finger 12 when it is installed in the conductive connection groove 14 through the fixing sleeve 13. The thickness and length of the conductive gold finger 12 are equal to the thickness and length of the conductive connection groove 14, and the width of the conductive gold finger 12 is greater than the width of the fixing sleeve 13.

[0030] In practical use, when adjacent circuit board bodies 10 need to be spliced ​​together, the two sets of handles 201 of the reinforcing component 20 are pulled outward, and the moving rod 202 and the locking strip 203 are stored in the inner cavity of the fixing sleeve 13. At this time, the spring 209 is in a compressed state, and the conductive gold fingers 12 on the other set of circuit board bodies 10 are connected to the conductive connection groove 14 through the insertion port 15 in the fixing sleeve 13. At this time, the locking groove 204 is aligned with the locking strip 203. Finally, after releasing the handles 201, the compressed spring 209 automatically resets, causing the locking strip 203 to move and connect with the locking groove 204, thus fixing the position of the conductive gold fingers 12. This improves the stability of the reinforcement of adjacent flexible circuit boards after splicing and expansion, and prevents the flexible circuit boards from loosening under force after splicing and expansion.

[0031] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A flexible circuit board that can be spliced ​​and expanded, comprising a circuit board body (10), wherein the circuit board body (10) is provided with a flexible strip (11) and conductive gold fingers (12), and the circuit board body (10) is provided with conductive connection grooves (14) for connecting to the conductive gold fingers (12), characterized in that, A fixing sleeve (13) is installed on the side of the circuit board body (10) near the conductive connection groove (14). An insertion port (15) is provided in the fixing sleeve (13) for the passage of the conductive gold finger (12). Reinforcing components (20) are provided at both ends of the inner cavity of the fixing sleeve (13). The reinforcement component (20) includes a movable rod (202) slidably connected in the fixed sleeve (13). A retaining strip (203) is installed on the side of the movable rod (202) near the socket (15). Both ends of the conductive gold finger (12) are provided with a retaining groove (204) that connects to the retaining strip (203).

2. The flexible circuit board that can be spliced ​​and expanded according to claim 1, characterized in that, The reinforcement assembly (20) also includes a handpiece (201) fixed to the moving rod (202), the handpiece (201) being located outside the fixed sleeve (13).

3. The flexible circuit board that can be spliced ​​and expanded according to claim 1, characterized in that, The inner wall of the fixed sleeve (13) is fixedly connected to two sets of connecting rods (206). Each set of connecting rods (206) is fixedly connected to a U-shaped frame (207) at one end near the moving rod (202). Each set of U-shaped frames (207) is rotatably connected to a roller (208) on its inner wall.

4. The flexible circuit board that can be spliced ​​and expanded according to claim 3, characterized in that, The two side walls of the movable rod (202) are provided with guide grooves (205), and the roller (208) is rolled in the guide grooves (205).

5. The flexible circuit board that can be spliced ​​and expanded according to claim 3, characterized in that, The outer wall of the movable rod (202) is fitted with a spring (209), which is located between the U-shaped frame (207) and the locking strip (203).

6. The flexible circuit board that can be spliced ​​and expanded according to claim 1, characterized in that, The size of the socket (15) is larger than the size of the conductive gold finger (12), and insulating pads (16) are provided on both sides of the inner wall of the socket (15).

7. The flexible circuit board that can be spliced ​​and expanded according to claim 1, characterized in that, The thickness and length of the conductive gold finger (12) are equal to the thickness and length of the conductive connection groove (14), and the width of the conductive gold finger (12) is greater than the width of the fixing sleeve (13).

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