Double-conductor FFC connecting line
By designing the lower conductor grounding and upper conductor in the FFC connection line and using the folded connection shielding layer, the problem of poor connection between the shielding layer and the system grounding line in the prior art is solved, and better shielding effect and high-speed signal transmission are achieved.
Patent Information
- Application Number
- CN202420603400.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-03-27
AI Technical Summary
The existing dual conductor FFC connection lines are difficult to effectively connect the shielding layer to the system ground wire, resulting in poor shielding effect and reduced high-speed signal transmission rate.
A two-conductor FFC connection line is designed, and the lower conductor ground and upper conductor are provided on the FFC main body, and the shielding layer is connected by folding the shielding layer to realize the connection between the shielding layer and the system ground line.
Through the folding connection of the double-layer conductor, the shielding effect is improved, the transmission capacity of FFC high-speed signal is improved, the processing technology is simplified, and the manufacturing difficulty and cost are reduced.
Smart Images

Figure CN222940312U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of communication, and particularly relates to a double-conductor FFC connecting wire. Background Art
[0002] The FFC connecting wire is a flexible flat cable, which can arbitrarily select the number of conductors and the spacing, making the connection more convenient, greatly reducing the volume of electronic products, reducing production costs, and improving production efficiency. It is most suitable for between moving parts and the main board.
[0003] When the existing double-conductor FFC connecting wire is in use, it is not convenient to connect the shielding layer to the system ground wire, thereby resulting in poor shielding effect of the device. In addition, to a certain extent, the high-speed signal transmission rate of the FFC is reduced.
[0004] Therefore, we propose a double-conductor FFC connecting wire to solve the problems raised above. Content of the Utility Model
[0005] The purpose of the utility model is to provide a double-conductor FFC connecting wire to solve the problems raised in the above background art.
[0006] To achieve the above purpose, the utility model provides the following technical solution: A double-conductor FFC connecting wire, including an FFC main body, an FFC flexible flat cable socket main body, and a socket switch main body. A lower conductor ground connection is provided near one side of the front side of the FFC main body. A low-speed signal is installed near the middle position on one side of the FFC main body. High-speed signals are installed near the top and bottom on the other side of the FFC main body. Shielding layers are provided on both the front and back sides of the FFC main body. Two FFC films are provided on the opposite side of the shielding layer. The FFC films are arranged front and back. Upper conductors are provided near the top and bottom of the front side of the lower conductor ground connection. The upper conductors are respectively arranged in a fitting manner with the adjacent lower conductor ground connections.
[0007] Preferably, both ends of the upper conductor are bent and are located at the bottom of the adjacent shielding layer.
[0008] Preferably, the FFC film wraps around the outer periphery of the lower conductor ground connection and the upper conductor.
[0009] Preferably, a groove is provided on the front side of the FFC flexible flat cable socket main body. Moving shafts are rotatably connected to both the top and bottom near one side of the inner cavity of the groove. The opposite ends of the moving shafts are fixedly connected to the socket switch main body together.
[0010] Preferably, fixing blocks are fixedly installed near the top and bottom of the front side of the FFC flexible flat cable socket main body. Pull rods movably penetrate through the opposite sides of the fixing blocks. Handles are fixedly installed at the opposite ends of the pull rods. Arc-shaped blocks are fixedly installed at the opposite ends of the pull rods.
[0011] Preferably, springs are movably sleeved on opposite ends of the outer periphery of the pull rod, and two ends of each spring are fixedly connected to the adjacent arc-shaped block and the adjacent fixed block respectively.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] 1. A double-layer conductor is used at the grounding position, with one layer grounded and the other layer folded to connect to the shielding layer, so as to connect the shielding layer to the system ground wire.
[0014] 2. The shielding effect is improved at the head and tail connection points, making it possible to transmit FFC high-speed signals.
[0015] 3. The connection between the conductor and the shield can be achieved by folding, with high reliability, reduced manufacturing difficulty and cost, and a simple processing technology.
[0016] 4. Under the action of the arc-shaped block and the spring, the socket switch body can be limited, so that the rear side of the socket switch body is stably connected to the FFC body, improving the stability of information transmission. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a three-dimensional schematic diagram of the overall structure of the present utility model;
[0018] Figure 2 is another three-dimensional schematic diagram of the overall structure of the present utility model from a different perspective;
[0019] Figure 3 is a partial cross-sectional view of the present utility model;
[0020] Figure 4 is of the present utility model Figure 1 Schematic diagram of the enlarged view at A;
[0021] Figure 5 is of the present utility model Figure 2 Schematic diagram of the enlarged view at B;
[0022] Figure 6 is a partial overall three-dimensional structural schematic diagram of the FFC flexible cable socket body and the FFC body of the present utility model;
[0023] Figure 7 is an unfolded three-dimensional structural schematic diagram of the FFC flexible cable socket body and the socket switch body of the present utility model;
[0024] Figure 8 is of the present utility model Figure 7 Enlarged view at C.
[0025] In the figure: 1. FFC main body; 2. Lower conductor grounding; 3. Upper conductor; 4. Shielding layer; 5. FFC film; 6. Low-speed signal; 7. High-speed signal; 8. FFC flexible cable socket body; 9. Movable shaft; 10. Socket switch body; 11. Fixed block; 12. Pull rod; 13. Handle; 14. Spring; 15. Arc-shaped block. Specific implementation mode
[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0027] Embodiment 1: Please refer to Figures 1-8 , a double-conductor FFC connecting wire, including an FFC main body 1, an FFC flexible cable socket body 8 and a socket switch body 10. A lower conductor grounding 2 is provided near one side of the front side of the FFC main body 1. A low-speed signal 6 is installed near the middle position on one side of the FFC main body 1. High-speed signals 7 are installed near the top and bottom on the other side of the FFC main body 1. Shielding layers 4 are provided on both the front and rear sides of the FFC main body 1. Two FFC films 5 are provided on the opposite side of the shielding layer 4. The FFC films 5 are arranged front and rear. Upper conductors 3 are provided near the top and bottom of the front side of the lower conductor grounding 2. The upper conductors 3 are respectively arranged in contact with the adjacent lower conductor grounding 2. By using a double-layer conductor at the grounding position, one layer is grounded and the other layer is folded to connect to the shielding layer 4, so as to connect the shielding layer 4 to the system ground wire. The shielding effect is improved at the two connection points at the head and tail, making it possible to transmit the FFC high-speed signal 7. The processing technology is simple. The connection between the conductor and the shield can be realized by folding, with high reliability and reduced manufacturing difficulty and cost.
[0028] Both ends of the upper conductor 3 are bent and are located at the bottom of the adjacent shielding layer 4.
[0029] The FFC film 5 wraps around the outer periphery of the lower conductor grounding 2 and the upper conductor 3. By providing the FFC film 5, it mainly plays the roles of flame resistance, heat resistance and insulation.
[0030] Embodiment 2: This embodiment is an improvement made on the basis of Embodiment 1. Specifically, please refer to Figures 6-8 , a groove is provided on the front side of the FFC flexible cable socket body 8. Movable shafts 9 are rotatably connected to both the top and bottom near one side of the inner cavity of the groove. The opposite ends of the movable shafts 9 are jointly fixed to the socket switch body 10. The socket switch body 10 is rotatably connected to the inner cavity of the groove through the movable shafts 9.
[0031] On the front side of the FFC flexible flat cable socket body 8, fixing blocks 11 are fixedly installed near the top and bottom. One end of each of the opposite sides of the fixing blocks is movably penetrated by a pull rod 12. Handles 13 are fixedly installed at the opposite ends of the pull rods 12. Arc-shaped blocks 15 are fixedly installed at the opposite ends of the pull rods 12. Under the action of the arc-shaped blocks 15 and the springs 14, the socket switch body 10 can be limited, improving the stability of information transmission.
[0032] Spring 14 is movably sleeved on the outer periphery of the pull rod 12 at the opposite ends. The two ends of the spring 14 are fixedly connected to the adjacent arc-shaped block 15 and the adjacent fixing block 11 respectively. By setting the spring 14, the rear side of the socket switch body 10 can be stably connected to the FFC main body 1.
[0033] Working principle: When the device is in use, for the double-layer conductor, the lower conductor is grounded 2 and connected to the system ground wire. The upper conductor 3 is folded and pressed under the shielding layer 4 to ground the shielding. The grounding position uses a double-layer conductor, one layer is grounded and the other layer is folded and connected to the shielding layer 4, realizing the connection between the shielding layer 4 and the system ground wire. The shielding effect is improved at the head and tail two connection points, making it possible to transmit the FFC high-speed signal 7. The processing technology is simple, and the connection between the conductor and the shielding can be realized by folding. It has high reliability, reduces the manufacturing difficulty and cost. When connecting the FFC flexible flat cable socket body 8 to the FFC main body, the socket switch body 10 is flipped and connected to the end of the FFC main body 1. When the socket switch body 10 is flipped backward, since the rear side of the socket switch body 10 is arc-shaped at the top and bottom, when the socket switch body 10 is flipped, the two arc-shaped blocks 15 can move away from each other, and finally the rear sides of the two arc-shaped blocks 15 can be mutually attached to the front side of the socket switch body 10. In this state, the connection stability between the FFC main body 1 and the FFC flexible flat cable socket body 8 can be improved, and the information transmission stability is also improved.
[0034] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.
[0035] Although the present invention 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 invention shall be included in the protection scope of the present invention.
Claims
1. A dual-conductor FFC connecting cable, comprising an FFC body (1), an FFC flexible flat cable socket body (8) and a socket switch body (10), characterized in that: A lower conductor grounding (2) is provided near one side of the front side of the FFC body (1); a low-speed signal (6) is installed near the middle position of one side of the FFC body (1); a high-speed signal (7) is installed near the top and the bottom of the other side of the FFC body (1); a shielding layer (4) is provided on both the front and rear sides of the FFC body (1); two FFC membranes (5) are provided on the opposite side of the shielding layer (4); the FFC membranes (5) are arranged front and back; an upper conductor (3) is provided near the top and the bottom of the front side of the lower conductor grounding (2); and the upper conductors (3) are respectively arranged to fit each other with the adjacent lower conductor grounding (2).
2. A dual-conductor FFC connecting wire according to claim 1, characterized in that: Both ends of the upper conductor (3) are bent and located at the bottom of the adjacent shielding layer (4).
3. A dual-conductor FFC connecting wire according to claim 1, characterized in that: The FFC film (5) is wrapped around the outer periphery of the lower conductor grounding (2) and the upper conductor (3).
4. A dual-conductor FFC connecting wire according to claim 1, characterized in that: A groove is provided on the front side of the FFC flexible cable socket body (8), and a movable shaft (9) is rotatably connected to the top and bottom of the inner cavity of the groove near one side, and the opposite end of the movable shaft (9) is fixedly connected to the socket switch body (10).
5. A dual-conductor FFC connecting wire according to claim 1, characterized in that: A fixing block (11) is fixedly installed on the front side of the FFC flexible cable socket body (8) near the top and the bottom, a pull rod (12) is movably penetrated on the opposite side of the fixing block, a handle (13) is fixedly installed on the end away from the pull rod (12), and an arc block (15) is fixedly installed on the opposite end of the pull rod (12).
6. A dual-conductor FFC connecting wire according to claim 5, characterized in that: A spring (14) is movably sleeved at one opposite end of the outer circumference of the pull rod (12), and two ends of the spring (14) are respectively fixedly connected to an adjacent arc block (15) and an adjacent fixed block (11).