Silver-plated ring-coated FFC flat cable
Patent Information
- Application Number
- CN202522220033.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-21
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-10-21
AI Technical Summary
[0003]基于上述，本发明人发现存在以下问题：现在的 FFC排线在实际使用中缺乏防损保护，FFC排线多应用于需频繁弯折的场景，如折叠屏手机铰链、汽车仪表盘与主机的连接部位，FFC排线仅依赖上下绝缘层保护线材，弯折时线材易因局部应力集中出现断裂，或绝缘层因反复弯折产生裂纹，导致线材暴露氧化，影响信号传输
[0009]采用上述进一步方案的有益效果是，可根据不同场景使用环境选择不同的材质，PTFE材质的顶波纹管和底波纹管耐高温且耐化学腐蚀，能在高温工况中稳定使用，使用寿命长；PP材质的顶波纹管和底波纹管轻便、成本较低，且绝缘性能良好，适合常温低压场景，电子内部布线，可根据不同使用环境灵活选择；顶波纹管和底波纹管最大拉伸长度大于排线本体，能覆盖排线本体全长度的弯折与拉伸需求，预留充足的伸缩空间，确保排线本体在频繁弯折、拉伸后仍能恢复原状。
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Figure CN224745489U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of FFC cable technology, specifically to a silver-plated ring-wrapped FFC cable. Background Technology
[0002] FFC (Flexible Flat Cable) is a flexible connector element that uses an insulating film as the substrate, with parallel metal wires sandwiched between upper and lower insulating layers. Due to its high flexibility, small wiring space, and stable signal transmission, it is widely used in consumer electronics, automotive electronics, and industrial control. The silver-plated ring-wrap FFC cable is an optimized design based on the traditional FFC cable. Its core feature is the addition of a silver-plated layer within the slots at both ends of the cable body. The excellent conductivity of the silver plating layer reduces the contact resistance between the cable and external interfaces, enhancing signal transmission stability. At the same time, it retains the flexibility of the FFC cable, adapting to complex internal wiring environments and meeting the flexible connection needs between different components. It is particularly suitable for scenarios with high signal transmission accuracy requirements, such as 5G equipment, precision sensors, and automotive central control systems.
[0003] Based on the above, the inventors have discovered the following problems: current FFC cables lack damage protection in actual use. FFC cables are mostly used in scenarios that require frequent bending, such as hinges of foldable screen phones and the connection between car dashboards and main units. FFC cables rely solely on upper and lower insulation layers to protect the wires. When bent, the wires are prone to breakage due to local stress concentration, or the insulation layers may crack due to repeated bending, leading to exposure and oxidation of the wires, which affects signal transmission.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a silver-plated ring-wrapped FFC cable in order to achieve a more practical value. Utility Model Content
[0005] The purpose of this invention is to provide a silver-plated ring-wrapped FFC cable to solve the problems mentioned in the background art.
[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:
[0007] A silver-plated ring-wrapped FFC ribbon cable includes a ribbon cable body and a damage prevention component. The ribbon cable body includes an upper insulation layer, a lower insulation layer below the upper insulation layer, and a wire installed between the upper and lower insulation layers. Grooves are formed inside both ends of the upper and lower insulation layers, and a silver-plated layer is disposed inside each of the four grooves. The damage prevention component includes a top corrugated tube and a bottom corrugated tube. The top corrugated tube is disposed on the top surface of the upper insulation layer, and the bottom corrugated tube is disposed on the bottom surface of the lower insulation layer. Both the top and bottom corrugated tubes are accordion-shaped.
[0008] Furthermore, the top corrugated tube and the bottom corrugated tube are made of PTFE or PP material, and the maximum tensile length of the top corrugated tube and the bottom corrugated tube is greater than the length of the ribbon cable body.
[0009] The advantages of adopting the above-mentioned further solutions are that different materials can be selected according to different usage environments. PTFE top and bottom corrugated pipes are resistant to high temperatures and chemical corrosion, can be used stably in high-temperature conditions, and have a long service life. PP top and bottom corrugated pipes are lightweight, low-cost, and have good insulation performance, making them suitable for normal temperature and low-voltage scenarios and internal electronic wiring. They can be flexibly selected according to different usage environments. The maximum tensile length of the top and bottom corrugated pipes is greater than that of the ribbon cable body, which can cover the bending and stretching requirements of the entire length of the ribbon cable body, and reserve sufficient expansion space to ensure that the ribbon cable body can still return to its original shape after frequent bending and stretching.
[0010] Furthermore, the upper insulating layer has a pair of first connecting seats installed on the top surface near both ends of the top corrugated pipe, and the first connecting seats are provided with a first connecting strip inside. The lower insulating layer has a pair of second connecting seats installed on the bottom surface near both ends of the bottom corrugated pipe, and the second connecting seats are provided with a second connecting strip inside. The first connecting seats and the second connecting seats are provided with slots on the outer wall side away from the top corrugated pipe and the bottom corrugated pipe. The first connecting strip and the second connecting strip are provided with wedge-shaped blocks on the outer wall side away from the top corrugated pipe and the bottom corrugated pipe. The wedge-shaped blocks are located in the slots, and adjacent wedge-shaped blocks and slots are hooked together.
[0011] The beneficial effect of adopting the above-mentioned further solution is that the hook-and-loop engagement of the wedge-shaped locking block and the slot can firmly fix the top corrugated tube and the bottom corrugated tube to the surface of the ribbon cable body, preventing the top corrugated tube and the bottom corrugated tube from shifting when the ribbon cable is bent, ensuring the continuous effectiveness of the bending protection, and at the same time achieving a stable connection between the damage prevention component and the ribbon cable body; when the top corrugated tube (bottom corrugated tube) is damaged, by squeezing the side of the first connecting strip (second connecting strip) where the wedge-shaped locking block is installed towards the top corrugated tube (bottom corrugated tube), the wedge-shaped locking block is separated from the slot, and then the top corrugated tube (bottom corrugated tube) is pulled, and the first connecting strip (second connecting strip) will be taken out from the inside of the first connecting seat (second connecting seat) through the perforation, thus completing the replacement of the top corrugated tube (bottom corrugated tube).
[0012] Furthermore, the outer walls of the opposite ends of the first connecting seat and the second connecting seat are provided with perforations, and the first connecting strip and the second connecting strip extend to the outside of the first connecting seat and the second connecting seat respectively through the perforations.
[0013] The beneficial effect of adopting the above-mentioned further solution is that, through the perforation, it is convenient for the first connecting strip (second connecting strip) to enter and exit the first connecting seat (second connecting seat); the first connecting strip (second connecting strip) enters the first connecting seat (second connecting seat) through the perforation, and the inner wall of the first connecting seat (second connecting seat) will squeeze the wedge-shaped block, so that the side of the first connecting strip (second connecting strip) with the wedge-shaped block installed is squeezed. Under the action of the first connecting strip (second connecting strip) continuously entering the first connecting seat (second connecting seat), the wedge-shaped block located in the slot is no longer squeezed by the inner wall of the first connecting seat (second connecting seat), and the side of the first connecting strip (second connecting strip) with the wedge-shaped block installed is reset under the elastic action, sending the wedge-shaped block into the slot.
[0014] Furthermore, both the first connecting strip and the second connecting strip are U-shaped, the first connecting strip and the second connecting strip are made of spring steel, and the first connecting seat and the second connecting seat are made of polypropylene.
[0015] The beneficial effects of adopting the above-mentioned further solution are that the first and second connecting strips of the U-shaped structure are made of spring steel, which has good elastic deformation ability; the first and second connecting seats made of polypropylene are lightweight and have high hardness. When the wedge-shaped block is placed in the slot, it does not affect the connection between the first connecting seat and the first connecting strip, or between the second connecting seat and the second connecting strip, and the first and second connecting seats made of polypropylene have excellent insulation performance.
[0016] Furthermore, the bottom surface of the first connecting seat is fixedly connected to the top surface of the upper insulating layer, the first connecting strip is fixedly connected to the outer wall of the top corrugated pipe on the side away from the wedge block, the top surface of the second connecting seat is fixedly connected to the bottom surface of the upper insulating layer, and the second connecting strip is fixedly connected to the outer wall of the bottom corrugated pipe on the side away from the wedge block.
[0017] The beneficial effect of adopting the above-mentioned further solution is that the fixed connection between the first connecting seat and the upper insulating layer (the second connecting seat and the lower insulating layer), and the first connecting strip and the top corrugated tube (the second connecting strip and the bottom corrugated tube) enables the top corrugated tube and the bottom corrugated tube to bend synchronously with the cable body, ensuring that the stress is evenly distributed during bending.
[0018] Furthermore, the length of the wire is greater than the length of the upper insulation layer, the length of the upper insulation layer is the same as the length of the lower insulation layer, the wire is made of copper or copper alloy, and the silver plating layer is an electroplated pure silver layer.
[0019] The advantages of adopting the above-mentioned further solution are that, since the length of the upper insulation layer is the same as the length of the lower insulation layer, and the length of the wire is greater than the lengths of the upper and lower insulation layers, sufficient length can be reserved for soldering or plugging with external interfaces, avoiding poor connection due to the wire being too short; the wire made of copper or copper alloy has excellent conductivity, which can reduce signal transmission loss; the electroplated pure silver layer has low contact resistance, which can strengthen the conductive connection between the ribbon cable and the interface, avoiding signal interruption due to poor contact, especially suitable for low voltage and low current signal transmission scenarios.
[0020] Compared with the prior art, the beneficial effects of this utility model are: the silver-plated ring-wrapped FFC cable has upper and lower insulation layers that tightly wrap the wire, isolating it from external dust and moisture, preventing wire oxidation or short circuits, and ensuring that signal transmission is not affected by external interference; the silver plating layer in the grooves at both ends of the upper and lower insulation layers has excellent conductivity and low contact resistance, which can strengthen the conductive connection between the cable body and the external interface, reduce signal loss during transmission, and is especially suitable for high-frequency signal transmission requirements; the accordion-style top and bottom corrugated tubes can be used with... The bending of the ribbon cable body evenly distributes the stress generated during bending, preventing the cable from breaking due to localized stress concentration. Furthermore, when installing the top and bottom corrugated tubes onto the upper and lower insulation layers respectively, the tubes can be stretched according to the length of the ribbon cable body. This allows the first connecting strips at both ends of the corrugated tubes to be close to the first connecting seats at both ends of the upper insulation layer (and the second connecting strips at both ends of the bottom corrugated tubes to be close to the second connecting seats at both ends of the lower insulation layer), facilitating subsequent installation of the top and bottom corrugated tubes onto the ribbon cable body. Attached Figure Description
[0021] Figure 1 A three-dimensional structural diagram of a silver-plated ring-wrapped FFC cable provided for this utility model;
[0022] Figure 2 An exploded three-dimensional structural diagram of the cable body of a silver-plated ring-wrapped FFC cable provided by this utility model;
[0023] Figure 3 A partial side cross-sectional view of the cable body of a silver-plated ring-wrapped FFC cable provided by this utility model;
[0024] Figure 4 A three-dimensional structural schematic diagram of a damage prevention component for a silver-plated ring-encased FFC cable provided by this utility model;
[0025] Figure 5 A cross-sectional perspective view of a damage prevention component for a silver-plated ring-encased FFC cable provided by this utility model.
[0026] In the diagram: 1. Cable body; 11. Upper insulation layer; 12. Wire; 13. Lower insulation layer; 14. Groove; 15. Silver plating layer; 2. Damage protection component; 21. Top corrugated tube; 22. Bottom corrugated tube; 23. First connecting strip; 24. Second connecting strip; 25. Wedge-shaped locking block; 26. First connecting seat; 27. Second connecting seat; 28. Perforation; 29. Slot. Detailed Implementation
[0027] 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.
[0028] Please see Figures 1-5 This utility model provides a technical solution: a silver-plated ring-wrapped FFC cable, including a cable body 1 and a damage prevention component 2. The cable body 1 includes an upper insulation layer 11, a lower insulation layer 13 below the upper insulation layer 11, and a wire 12 installed between the upper insulation layer 11 and the lower insulation layer 13. Grooves 14 are formed inside both ends of the upper insulation layer 11 and the lower insulation layer 13, and a silver-plated layer 15 is formed inside each of the four grooves 14. The damage prevention component 2 includes a top corrugated tube 21 and a bottom corrugated tube 22. The top corrugated tube 21 is located on the top surface of the upper insulation layer 11, and the bottom corrugated tube 22 is located on the bottom surface of the lower insulation layer 13. Both the top corrugated tube 21 and the bottom corrugated tube 22 are accordion-shaped and are made of PTFE or PP material. The maximum tensile length of the top corrugated tube 21 and the bottom corrugated tube 22 is greater than the length of the cable body 1. The insulation layer 11 and the lower insulation layer 13 tightly wrap the wire 12, isolating it from external dust and moisture, preventing oxidation or short circuits, and ensuring that signal transmission is not affected by external interference. The silver-plated layer 15 in the slots 14 at both ends of the upper insulation layer 11 and the lower insulation layer 13 has excellent conductivity and low contact resistance, which can strengthen the conductive connection between the ribbon cable body 1 and the external interface, reduce signal loss during transmission, and is especially suitable for high-frequency signal transmission. The accordion-style top corrugated tube 21 and bottom corrugated tube 22 can bend along with the ribbon cable body 1, evenly dispersing the stress generated during bending, and preventing the wire 12 from breaking due to localized stress concentration. The maximum tensile length of the top corrugated tube 21 and the bottom corrugated tube 22 is greater than that of the ribbon cable body 1, which can cover the bending and stretching requirements of the entire length of the ribbon cable body 1, and reserve sufficient expansion space to ensure that the ribbon cable body 1 can still return to its original shape after frequent bending and stretching.
[0029] 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.
[0030] Please see Figures 1-5This utility model provides a technical solution: A pair of first connecting seats 26 are installed on the top surface of the upper insulating layer 11 near both ends of the top corrugated pipe 21, and a first connecting strip 23 is provided inside the first connecting seat 26. A pair of second connecting seats 27 are installed on the bottom surface of the lower insulating layer 13 near both ends of the bottom corrugated pipe 22, and a second connecting strip 24 is provided inside the second connecting seat 27. The first connecting seats 26 and the second connecting seats 27 each have a slot 29 on the side away from the outer wall of the top corrugated pipe 21 and the bottom corrugated pipe 22. The first connecting strip 23 and the second connecting strip 24 each have a wedge-shaped... The wedge-shaped locking blocks 25 are located within the locking slots 29, and adjacent wedge-shaped locking blocks 25 and locking slots 29 are hooked together. The outer walls of the opposite ends of the first connecting seat 26 and the second connecting seat 27 are each provided with a through hole 28. The first connecting strip 23 and the second connecting strip 24 extend through the through holes 28 to the outside of the first connecting seat 26 and the second connecting seat 27, respectively. Both the first connecting strip 23 and the second connecting strip 24 are U-shaped and made of spring steel. The first connecting seat 26 and the second connecting seat 27 are made of polypropylene. The bottom surface of the first connecting seat 26 is fixedly connected to the top surface of the upper insulating layer 11. The first connecting strip 23 is located at the far... The outer wall of the wedge-shaped block is fixedly connected to the outer wall of the top corrugated pipe 21, the top surface of the second connecting seat 27 is fixedly connected to the bottom surface of the upper insulating layer 11, and the second connecting strip 24 is fixedly connected to the outer wall of the bottom corrugated pipe 22 on the side away from the wedge-shaped block. The first connecting strip 23 and the second connecting strip 24 of the U-shaped structure are made of spring steel and have good elastic deformation ability. The first connecting strip 23 enters the first connecting seat 26 through the through hole 28. The inner wall of the first connecting seat 26 will squeeze the wedge-shaped block 25, so that the side of the first connecting strip 23 with the wedge-shaped block 25 is squeezed. As the first connecting strip 23 continuously enters the first connecting seat 26... When the wedge-shaped locking block 25 is located in the slot 29, it is no longer squeezed by the inner wall of the first connecting seat 26. The side of the first connecting strip 23 where the wedge-shaped locking block 25 is installed is reset under the elastic action, and the wedge-shaped locking block 25 is sent into the slot 29, thereby completing the installation of the top corrugated tube 21. Similarly, the bottom corrugated tube 22 can be installed by repeating the operation. The hook-and-loop engagement between the wedge-shaped locking block 25 and the slot 29 can firmly fix the top corrugated tube 21 and the bottom corrugated tube 22 to the surface of the ribbon cable body 1, preventing the top corrugated tube 21 and the bottom corrugated tube 22 from shifting when the ribbon cable is bent, ensuring that the anti-bending protection is continuously effective, and at the same time achieving a stable connection between the anti-damage component 2 and the ribbon cable body 1.
[0031] 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.
[0032] Please see Figures 1-5 This utility model provides a technical solution: the length of the wire 12 is greater than the length of the upper insulation layer 11, the length of the upper insulation layer 11 is the same as the length of the lower insulation layer 13, the wire 12 is made of copper or copper alloy, and the silver plating layer 15 is an electroplated pure silver layer; the length of the wire 12 is greater than the lengths of the upper insulation layer 11 and the lower insulation layer 13, which can reserve sufficient length for soldering or plugging with external interfaces, avoiding poor connection due to the wire 12 being too short; the copper or copper alloy wire 12 has excellent conductivity, which can reduce signal transmission loss; the electroplated pure silver layer has low contact resistance, which can strengthen the conductive connection between the ribbon cable and the interface, avoiding signal interruption due to poor contact, especially suitable for low voltage and low current signal transmission scenarios.
[0033] Specifically, the working principle of this silver-plated ring-wrapped FFC cable is as follows: During use, the first connecting strip 23 and the second connecting strip 24 of the U-shaped structure are made of spring steel, possessing excellent elastic deformation capability. The first connecting strip 23 enters the first connecting seat 26 through the through hole 28. The inner wall of the first connecting seat 26 presses against the wedge-shaped locking block 25, causing the side of the first connecting strip 23 with the wedge-shaped locking block 25 to be compressed. As the first connecting strip 23 continuously enters the first connecting seat 26, the wedge-shaped locking block 25, located in the slot 29, is no longer compressed by the inner wall of the first connecting seat 26. The side of the first connecting strip 23 with the wedge-shaped locking block 25 returns to its original position under elastic action, sending the wedge-shaped locking block 25 into the slot 29, thus completing the installation of the top corrugated tube 21. The same operation can be repeated to complete the installation of the bottom corrugated tube 22. The hook-and-loop engagement between the wedge-shaped locking block 25 and the slot 29 allows the top corrugated tube 21 to be installed. The top and bottom corrugated tubes 21 and 22 are firmly fixed to the surface of the ribbon cable body 1 to prevent displacement of the top and bottom corrugated tubes 21 and 22 when the ribbon cable is bent, ensuring continuous and effective bending protection, and at the same time achieving a stable connection between the anti-damage component 2 and the ribbon cable body 1; the upper insulation layer 11 and the lower insulation layer 13 tightly wrap the wire 12, isolating it from external dust and moisture, preventing the wire 12 from oxidizing or short-circuiting, and ensuring that the signal transmission is not affected by external interference; the silver-plated layer 15 in the slots 14 at both ends of the upper insulation layer 11 and the lower insulation layer 13 has excellent conductivity and low contact resistance, which can strengthen the conductive connection between the ribbon cable body 1 and the external interface, reduce the loss during signal transmission, and is especially suitable for high-frequency signal transmission requirements; the accordion-style top corrugated tube 21 and bottom corrugated tube 22 can bend with the ribbon cable body 1, evenly dispersing the stress generated during bending, preventing the wire 12 from breaking due to local stress concentration, and preventing damage to the wire core.
[0034] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. Furthermore, since this application is mainly used to protect mechanical devices, the control methods and circuit connections will not be explained in detail in this application.
Claims
1. A silver-plated ring-wrapped FFC cable, characterized in that, The cable includes a ribbon cable body (1) and a damage prevention component (2). The ribbon cable body (1) includes an upper insulation layer (11) and a lower insulation layer (13) below the upper insulation layer (11). A wire (12) is installed between the upper insulation layer (11) and the lower insulation layer (13). The upper insulation layer (11) and the lower insulation layer (13) have slots (14) inside both ends. The four slots (14) are all provided with silver plating (15). The damage prevention component (2) includes a top corrugated tube (21) and a bottom corrugated tube (22). The top corrugated tube (21) is located on the top surface of the upper insulation layer (11), and the bottom corrugated tube (22) is located on the bottom surface of the lower insulation layer (13). Both the top corrugated tube (21) and the bottom corrugated tube (22) are accordion-shaped.
2. The silver-plated ring-wrapped FFC cable according to claim 1, characterized in that, The top corrugated tube (21) and the bottom corrugated tube (22) are made of PTFE or PP material, and the maximum tensile length of the top corrugated tube (21) and the bottom corrugated tube (22) is greater than the length of the ribbon cable body (1).
3. The silver-plated ring-wrapped FFC cable according to claim 1, characterized in that, The upper insulating layer (11) has a pair of first connecting seats (26) installed on the top surface near both ends of the top corrugated pipe (21). The first connecting seat (26) has a first connecting strip (23) inside. The lower insulating layer (13) has a pair of second connecting seats (27) installed on the bottom surface near both ends of the bottom corrugated pipe (22). The second connecting seat (27) has a second connecting strip (24) inside. The first connecting seat (26) and the second connecting seat (27) each have a slot (29) on the side away from the outer wall of the top corrugated pipe (21) and the bottom corrugated pipe (22). The first connecting strip (23) and the second connecting strip (24) each have a wedge-shaped block (25) installed on the side away from the outer wall of the top corrugated pipe (21) and the bottom corrugated pipe (22). The wedge-shaped block (25) is located in the slot (29), and the adjacent wedge-shaped blocks (25) and the slot (29) are hooked together.
4. The silver-plated ring-wrapped FFC cable according to claim 3, characterized in that, The outer walls of the opposite ends of the first connecting seat (26) and the second connecting seat (27) are provided with perforations (28), and the first connecting strip (23) and the second connecting strip (24) extend to the outside of the first connecting seat (26) and the second connecting seat (27) respectively through the perforations (28).
5. The silver-plated ring-wrapped FFC cable according to claim 4, characterized in that, The first connecting strip (23) and the second connecting strip (24) are both U-shaped. The first connecting strip (23) and the second connecting strip (24) are made of spring steel, and the first connecting seat (26) and the second connecting seat (27) are made of polypropylene.
6. The silver-plated ring-wrapped FFC cable according to claim 5, characterized in that, The bottom surface of the first connecting seat (26) is fixedly connected to the top surface of the upper insulating layer (11), the first connecting strip (23) is fixedly connected to the outer wall of the top corrugated pipe (21) on the side away from the outer wall of the wedge block, the top surface of the second connecting seat (27) is fixedly connected to the bottom surface of the upper insulating layer (11), and the second connecting strip (24) is fixedly connected to the outer wall of the bottom corrugated pipe (22) on the side away from the outer wall of the wedge block.
7. The silver-plated ring-wrapped FFC cable according to claim 1, characterized in that, The length of the wire (12) is greater than the length of the upper insulation layer (11), the length of the upper insulation layer (11) is the same as the length of the lower insulation layer (13), the wire (12) is made of copper or copper alloy, and the silver plating layer (15) is an electroplated pure silver layer.