Flat cable structure with shielding layer
By introducing a double-layer shielding layer of metal foil and copper wire braid in the ribbon cable structure, combined with a plug and fixing bolt structure, the problems of difficult disassembly and electromagnetic interference of traditional ribbon cables are solved, achieving stable connection and efficient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO YINGXING OPTOELECTRONICS TECH CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional flexible circuit cables cannot be disassembled and replaced, resulting in low maintenance efficiency and an inability to effectively prevent external electromagnetic interference from affecting signal transmission.
The design incorporates a shielded cabling structure with a double-layer shielding layer consisting of a metal foil shielding layer and a copper wire braided mesh. Combined with plug, base plate, top plate, and wing assembly, the cabling is quickly positioned and secured using fixing bolts, facilitating disassembly and maintenance. The metal foil shielding layer also allows for rapid electromagnetic interference discharge.
It achieves stable cable connection, prevents slippage damage, improves maintenance efficiency, and effectively shields electromagnetic interference to ensure stable equipment operation.
Smart Images

Figure CN224417543U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit wiring technology, specifically a wiring structure with a shielding layer. Background Technology
[0002] Ribbon cables, also known as flexible printed circuit boards (FPCs), are a new type of data cable made by laminating PET or other insulating materials and extremely thin tin-plated flat copper wires using high-tech automated production lines. They offer advantages such as flexibility, easy bending and folding, thinness, small size, simple connection, convenient disassembly, and easy electromagnetic interference (EMI) shielding. However, traditional flexible ribbon cables consist of parallel conductors covered with insulating material, with the conductor ends exposed and in contact with the connector's connection points. Since most flexible ribbon cables are fixed with plugs and cannot be disassembled, problems or damage require the complete removal and replacement of both the plug and the cable. This disassembly and assembly method reduces the efficiency of troubleshooting and repair. Furthermore, existing flexible ribbon cables cannot effectively prevent external electromagnetic interference, causing noise in signal transmission between systems and affecting circuit communication. Utility Model Content
[0003] The purpose of this invention is to provide a cable structure with a shielding layer to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a cable structure with a shielding layer, comprising a cable body, a plug installed at one end of the cable body, a fixing plate provided at the top of the plug, a wing plate provided at the top of the fixing plate, and fixing bolts installed on the side of the wing plate.
[0005] Preferably, the top of the plug is fixedly provided with a fixing groove, the fixing groove is provided with a threaded hole, the threaded hole can be connected with a fixing bolt, the side of the plug is provided with an installation groove, and the side of the installation groove is provided with a sliding groove, the sliding groove is provided with a clamping structure.
[0006] Preferably, the clamping structure includes a base plate, a slider is fixedly provided on the side of the base plate, the slider is slidably disposed inside the slide groove, a docking hole is provided on the top of the base plate, a top plate is inserted and installed on the top of the base plate, a slot is provided on the bottom of the base plate, and the slot is engaged with the ribbon cable body, and a second wing plate is provided on the side of the top plate, and the second wing plate is also engaged with the first wing plate in the fixed groove.
[0007] Preferably, the bottom of the top plate is fixedly provided with multiple docking posts, which are inserted into docking holes. The bottom of the top plate is also provided with a slot, through which the top plate is connected to the cable body.
[0008] Preferably, the two ends of the ribbon cable body are provided with a magnetic coating layer, and the magnetic coating layer is snapped into the slot. The side of the ribbon cable body is provided with a protective layer, and a metal foil shielding layer is provided on the inner side of the protective layer. A copper wire braided mesh is provided on the inner side of the metal foil shielding layer. An insulating layer is provided on the inner side of the copper wire braided mesh, and a parallel inner core is provided on the inner side of the insulating layer.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: Through the double-layer shielding structure design of metal foil shielding layer and metal braided mesh shielding layer, it has good conductivity and shielding effect. Its high conductivity can quickly conduct away the induced electromagnetic interference current, ensuring both good shielding performance and meeting the flexibility requirements of the ribbon cable, thus ensuring the stable operation of the equipment. Through the plug, base plate, top plate, fixing plate and wing plate assembly, it can not only protect the ribbon cable and prevent it from being damaged, but also prevent the ribbon cable from slipping and affecting the connection and communication effect. Furthermore, through the snap-fit structure of fixing bolts, docking holes and docking grooves, it can achieve a quick positioning and fastening effect while facilitating disassembly and maintenance. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0011] Figure 2 This is a schematic diagram of the plug structure of this utility model;
[0012] Figure 3 This is a schematic cross-sectional view of the structure of this utility model.
[0013] In the diagram: 1. Main body of the ribbon cable; 2. Plug; 3. Fixing plate; 4. First wing plate; 5. Fixing bolt; 6. Fixing groove; 7. Threaded hole; 8. Mounting groove; 9. Slide groove; 10. Base plate; 11. Slider; 12. Connecting hole; 13. Top plate; 14. Card slot; 15. Connecting post; 16. Second wing plate; 17. Magnetic coating layer; 18. Protective layer; 19. Metal foil shielding layer; 20. Copper wire braided mesh; 21. Insulation layer; 22. Inner core. Detailed Implementation
[0014] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0015] Example 1: Please refer to Figures 1-3 This utility model provides a technical solution: a cable structure with a shielding layer, including a cable body 1, a plug 2 installed at one end of the cable body 1, a fixing plate 3 for rotating the plug 2, a first wing plate 4 on the top of the fixing plate 3, and fixing bolts 5 installed on the side of the first wing plate 4.
[0016] The top of the plug 2 is fixedly provided with a fixing groove 6, and a threaded hole 7 is provided in the fixing groove 6. The threaded hole 7 can be connected with the fixing bolt 5. The side of the plug 2 is provided with an installation groove 8, and the side of the installation groove 8 is provided with a sliding groove 9. A clamping structure is slidably engaged in the sliding groove 9.
[0017] The clamping structure includes a base plate 10, a slider 11 fixedly mounted on the side of the base plate 10, the slider 11 being slidably mounted inside the slide groove 9, a mating hole 12 opening on the top of the base plate 10, a top plate 13 being inserted and installed on the top of the base plate 10, and a slot 14 opening on the bottom of the base plate 10, which is engaged with the ribbon cable body 1. The plug 2, base plate 10, top plate 13, fixing plate 3, and wing assembly not only protect the ribbon cable from damage but also prevent the ribbon cable from slipping.
[0018] Multiple docking posts 15 are fixedly installed at the bottom of the top plate 13. The docking posts 15 are inserted into the docking holes 12. The bottom of the top plate 13 is also provided with a slot 14. The top plate 13 is connected to the cable body 1 through the slot 14. A second wing plate 16 is provided on the side of the top plate 13. The second wing plate 16 is also connected to the first wing plate 4 in the fixing groove 6. The fixing bolts 5, docking holes 12 and docking posts 15 are connected in a snap-fit structure to achieve a quick positioning and fastening effect while facilitating disassembly and maintenance.
[0019] The main body 1 of the ribbon cable has magnetic coating layers 17 at both ends, and the magnetic coating layers 17 are snapped into the slots 14. The side of the main body 1 of the ribbon cable is provided with a protective layer 18. The inner side of the protective layer 18 is provided with a metal foil shielding layer 19. The inner side of the metal foil shielding layer 19 is provided with a copper wire braided mesh 20. The inner side of the copper wire braided mesh 20 is provided with an insulating layer 21, and the inner side of the insulating layer 21 is provided with parallel inner cores 22. The double-layer shielding structure of the metal foil shielding layer 19 and the copper wire braided mesh 20 has good conductivity and shielding effect. Its high conductivity can quickly conduct the induced electromagnetic interference current away, which can not only ensure good shielding performance, but also meet the flexibility requirements of the ribbon cable and ensure the stable operation of the equipment.
[0020] In use, by loosening the fixing bolts 5, the fixing plate 3 is rotated open, and the top plate 13 and the bottom plate 10 are separated by the mating holes 12 and mating posts 15, the fixing groove 6 and the second wing 16. The top plate 13 and the bottom plate 10 are then slid out of the mounting groove. The main body of the cable and the magnetic coating layer 17 are then placed directly into the gradient slot 14. Finally, the operation is reversed, and the top 13 is pressed down to cooperate with the bottom plate 10 to fix the main body of the cable. The cable is then slid into the mounting groove 8. Finally, the fixing bolts 5 on the side of the fixing plate 3 are used to fix and lock the first wing 4 and the second wing 16. During the operation of the cable, the double-layer shielding structure of the metal foil shielding layer 19 and the copper wire braided mesh shielding layer 20 can quickly conduct away the induced electromagnetic interference current, thus ensuring good shielding performance.
[0021] 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 shielded flat cable structure, characterized by: The device includes a ribbon cable body (1), one end of which is equipped with a plug (2). A fixing plate (3) is provided for the rotation of the plug (2). A first wing plate (4) is provided on the top of the fixing plate (3), and a fixing bolt (5) is fitted on the side of the first wing plate (4). A fixing groove (6) is fixedly provided on the top of the plug (2), and a threaded hole (7) is provided in the fixing groove (6). The threaded hole (7) can be connected to the fixing bolt (5). An installation groove (8) is provided on the side of the plug (2). The mounting slot (8) has a sliding groove (9) on its side. A clamping structure is slidably engaged in the sliding groove (9). The clamping structure includes a base plate (10). A slider (11) is fixedly provided on the side of the base plate (10). The slider (11) is slidably disposed inside the sliding groove (9). A docking hole (12) is provided on the top of the base plate (10). A top plate (13) is inserted and installed on the top of the base plate (10). A slot (14) is provided on the bottom of the base plate (10), and the slot (14) is engaged with the ribbon cable body (1).
2. The flat cable structure with a shielding layer according to claim 1, characterized in that: The bottom of the top plate (13) is fixedly provided with multiple docking posts (15), which are inserted into the docking holes (12). The bottom of the top plate (13) is also provided with a slot (14), which is connected to the cable body (1) through the slot (14). The side of the top plate (13) is provided with a second wing plate (16), which is also connected to the first wing plate (4) in the fixed groove (6).
3. The flat cable structure with a shielding layer according to claim 2, characterized in that: The two ends of the main body (1) of the cable are provided with a magnetic coating layer (17), and the magnetic coating layer (17) is engaged with the slot (14). The side of the main body (1) of the cable is provided with a protective layer (18). The inner side of the protective layer (18) is provided with a metal foil shielding layer (19). The inner side of the metal foil shielding layer (19) is provided with a copper wire braided mesh (20). The inner side of the copper wire braided mesh (20) is provided with an insulating layer (21), and the inner side of the insulating layer (21) is provided with parallel inner cores (22).