Data transmission line group, intelligent equipment and line group manufacturing method

Abstract

The invention relates to the technical field of wires, in particular to a data transmission line set, intelligent equipment and a line set manufacturing method. The data transmission line group comprises a power supply cable and a signal transmission cable, wherein the power supply cable is used for charging intelligent equipment; the signal transmission cable is used for transmitting signals, and the power supply cable and the signal transmission cable are arranged in parallel; the signal transmission cable comprises a first outer protection layer, a first shielding layer, a wrapping tape layer and a core body assembly which are sequentially arranged from outside to inside. The core assembly comprises a plurality of high-speed signal transmission lines, a plurality of first signal transmission lines and a center line group, the high-speed signal transmission lines are arranged in the circumferential direction of the belting layer and define a center channel, and the center line group accommodates and limits the center channel. The plurality of high-speed signal transmission lines are arranged and are uniformly distributed along the circumferential direction of the belting layer, and the central channel is formed by enclosing, so that the high-speed signal transmission lines are ensured to be installed stably and arranged in a central symmetry manner, and the high-speed signal transmission efficiency and the anti-interference capability are improved.

Description

Technical Field

[0001] This application relates to the field of wire technology, and in particular to a data transmission cable assembly, a smart device, and a method for manufacturing the cable assembly. Background Technology

[0002] Data transmission cables are used to transmit digital or analog signals and are widely used in computers, communications, and consumer electronics. They are classified according to the type of signal transmitted (digital or analog), the transmission medium (copper wire or fiber optic), and the application scenario (computers, video and audio, network communications, etc.). The structure of a data transmission cable includes a conductor, an insulation layer, a shielding layer, and a sheath. Its performance indicators, such as transmission rate, bandwidth, interference immunity, and transmission distance, are crucial to signal transmission quality. Choosing the right cable requires considering factors such as the application scenario, transmission speed, length, and quality to ensure the stability and reliability of data transmission.

[0003] Currently, there are many high-speed, multi-functional interfaces on the market. These interfaces enable 40Gbps high-speed data transmission, multi-device connectivity, high-power charging, high-resolution video output, and peripheral expansion. Conventional data transmission cables cannot achieve high-speed signal transmission, which may lead to signal attenuation, distortion, and electromagnetic interference. This reduces signal quality, affects the reliability and stability of data transmission, and may even interfere with other devices. Summary of the Invention

[0004] This application provides a data transmission line assembly, a smart device, and a method for manufacturing the line assembly, in order to solve the problems that conventional data transmission line assemblies cannot achieve high-speed signal transmission and may cause signal attenuation, distortion, and electromagnetic interference.

[0005] This application provides a data transmission line assembly, including: A power cable for charging smart devices; A signal transmission cable, wherein the signal transmission cable is used to transmit signals, and a power supply cable is arranged in parallel with the signal transmission cable; The signal transmission cable includes a first outer sheath, a first shielding layer, a wrapping layer, and a core assembly arranged sequentially from the outside to the inside. The wrapping layer covers the outside of the core assembly, the first shielding layer covers the outside of the wrapping layer, and the first outer sheath covers the outside of the first shielding layer. The core assembly includes several high-speed signal transmission lines, several first signal transmission lines, and a center line group. Each of the high-speed signal transmission lines is arranged circumferentially along the wrapping layer and surrounds a central channel. Each of the first signal transmission lines is spaced apart between the high-speed signal transmission lines. The center line group accommodates and limits the central channel.

[0006] Optionally, the outer periphery of the high-speed signal transmission line has a first insulating layer and a tinned copper wire layer wrapped in sequence, wherein the tinned copper wire layer consists of multiple tinned copper wires wound around the first insulating layer, and the tinned copper wire layer has a first winding direction.

[0007] Optionally, a copper foil is wound around the outer periphery of the tin-plated copper wire layer, and the copper foil has a second winding direction.

[0008] Optionally, an insulating tape is wound around the outer periphery of the copper foil, and the winding direction of the insulating tape is the same as the winding direction of the tin-plated copper wire layer.

[0009] Optionally, the center line group includes several low-speed signal transmission lines and hot-melt aluminum foil, the several low-speed signal transmission lines are twisted together, and the hot-melt aluminum foil is sleeved on the several low-speed signal transmission lines.

[0010] Optionally, the center line group further includes a first power transmission line, cotton thread, and cotton paper. The first power transmission line, the two low-speed signal transmission lines, and the cotton thread are twisted together to form a cylindrical structure, and the cotton paper is wound around the cylindrical structure.

[0011] Optionally, the power supply cable includes a connector, wherein the power supply cable has a second outer sheath, the connector connects the first outer sheath and the second outer sheath, and the first outer sheath, the second outer sheath, and the connector are integrally formed.

[0012] This application also proposes a smart device, including a data transmission line assembly.

[0013] This application also proposes a method for manufacturing a data transmission cable assembly, comprising the following steps: The high-speed signal transmission line, the first signal transmission line, the low-speed signal transmission line, the first power transmission line, the second signal transmission line, and the second power transmission line are selected and twisted together with copper wires. A barrier layer and a second shielding layer are respectively wrapped around the outer periphery of the high-speed signal transmission line, the first signal transmission line, the first low-speed signal transmission line, the first power transmission line, the second signal transmission line, and the second power transmission line. After twisting the two low-speed signal transmission lines together, they are twisted together with the first power transmission line and the cotton thread to form the center line group. With the center line group as the center, eight high-speed signal transmission lines and four first signal transmission lines are arranged around it and twisted together to form the core assembly. The signal transmission cable is formed by wrapping the wrapping layer and the first shielding layer around the outer periphery of the core assembly; One second signal transmission line, two second power transmission lines, and cotton thread are twisted together to form the power supply cable; An outer sheath is integrally wrapped around the outer periphery of the signal transmission cable and the power supply cable.

[0014] Optionally, before selecting copper wires to strand the high-speed signal transmission line, the first signal transmission line, the first low-speed signal transmission line, the first power transmission line, the second signal transmission line, and the second power transmission line in the step of selecting copper wires to strand the high-speed signal transmission line, 7 silver-plated copper wires with a diameter of 0.103±0.003 mm are selected to strand the high-speed signal transmission line, 19 tin-plated copper wires with a diameter of 0.04±0.003 mm are selected to strand the first signal transmission line, 7 tin-plated copper wires with a diameter of 0.071±0.003 mm are selected to strand the first low-speed signal transmission line, 37 tin-plated copper wires with a diameter of 0.1±0.005 mm are selected to strand the first power transmission line; 7 tin-plated copper wires with a diameter of 0.10±0.003 mm are selected to strand the second signal transmission line, and 72 tin-plated copper wires with a diameter of 0.12±0.005 mm are selected to strand the second power transmission line.

[0015] Optionally, before selecting copper wires to strand the high-speed signal transmission line, the first signal transmission line, the first low-speed signal transmission line, the first power transmission line, the second signal line, and the second power transmission line, the method further includes: Eight high-speed signal transmission lines were selected, and 51 strands of 0.05±0.003 mm tin-plated copper were wound to the right on the surface of each of the eight high-speed signal transmission lines. Then, a layer of copper foil with a width of 3.5 mm was wound to the left on the surface. Finally, an insulating tape with a width of 3.5 mm was wound to the right on the surface of the copper foil.

[0016] The technical solutions provided in this application have the following advantages compared with the prior art: The data transmission line assembly of this application achieves stable high-speed signal transmission by setting a core assembly. The core assembly consists of several high-speed signal transmission lines, several first signal transmission lines, and a center line group. Specifically, eight high-speed signal transmission lines are evenly distributed circumferentially along the wrapping layer and form a central channel to ensure the stability and symmetrical arrangement of the high-speed signal transmission lines, thereby improving the efficiency and anti-interference capability of high-speed signal transmission. Four first signal transmission lines are spaced apart between the high-speed signal transmission lines to transmit auxiliary signals, further optimizing the integrity of signal transmission. The center line group is housed within the central channel and serves to synchronize signals and transmit power. In addition, the structure of the signal transmission cable also includes a wrapping layer, a first shielding layer, and a first outer sheath, which are sequentially wrapped around the core assembly. The first shielding layer effectively isolates external electromagnetic interference, ensuring the purity of signal transmission; the wrapping layer mainly provides additional insulation, mechanical protection, and electromagnetic shielding, enhancing the overall performance and reliability of the cable; the first outer sheath mainly protects the core assembly from environmental factors such as mechanical damage, chemical corrosion, and moisture intrusion, while also providing electrical insulation and signal shielding to ensure the safety and performance of the core assembly. The data transmission line assembly of this application significantly improves the performance and reliability of signal transmission through its unique structural design. The even distribution of eight high-speed signal transmission lines and the support provided by the center line group for the high-speed signal transmission lines effectively reduce signal attenuation and crosstalk between signals, thereby improving the stability and anti-interference capability of signal transmission. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0020] Figure 1 This is a schematic diagram of the structure of the data transmission line assembly provided in an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the centerline group provided in an embodiment of this application; Figure 3This is a schematic diagram of the structure of a high-speed signal transmission line provided in an embodiment of this application.

[0021] Explanation of reference numerals in the attached figures: 1. Power supply cable; 11. Second outer sheath; 12. Second signal transmission line; 13. Second power transmission line; 2. Signal transmission cable; 21. First outer sheath; 22. First shielding layer; 23. Wrapping tape layer; 24. Core assembly; 241. High-speed signal transmission line; 242. First signal transmission line; 25. Center wire group; 24a. Center channel; 26. Tinned copper wire layer; 27. Copper foil; 28. Insulating tape; 29. ​​First insulating layer; 251. First low-speed signal transmission line; 252. Hot melt aluminum foil; 253. First power transmission line; 254. Cotton thread; 255. Cotton paper; 3. Connectors. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0024] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0025] To address the issues of conventional data transmission line assemblies failing to achieve high-speed signal transmission, which may lead to signal attenuation, distortion, and electromagnetic interference, this application provides a data transmission line assembly. This assembly comprises eight high-speed signal transmission lines 241 evenly distributed circumferentially along the wrapping layer 23, forming a central channel 24a. This ensures stable installation and symmetrical arrangement of the high-speed signal transmission lines 241, thereby improving the efficiency and anti-interference capability of high-speed signal transmission.

[0026] This application provides a data transmission cable assembly, including a power supply cable 1 and a signal transmission cable 2. The power supply cable 1 is used to charge a smart device; the signal transmission cable 2 is used to transmit signals. The power supply cable 1 and the signal transmission cable 2 are arranged side by side. The signal transmission cable 2 includes a first outer sheath 21, a first shielding layer 22, a wrapping layer 23, and a core assembly 24 arranged sequentially from the outside to the inside. The wrapping layer 23 covers the outside of the core assembly 24, the first shielding layer 22 covers the outside of the wrapping layer 23, and the first outer sheath 21 covers the outside of the first shielding layer 22. The core assembly 24 includes a plurality of high-speed signal transmission lines 241, a plurality of first signal transmission lines 242, and a center line group 25. Each high-speed signal transmission line 241 is arranged circumferentially along the wrapping layer 23 and surrounds to form a central channel 24a. Each first signal transmission line 242 is spaced between the high-speed signal transmission lines 241, and the center line group 25 accommodates and limits the central channel 24a.

[0027] In this embodiment, the power supply cable 1 and the signal transmission cable 2 are arranged side by side. The power supply cable 1 uses a standard USB-C interface, which can provide fast charging capability for smart devices. The core assembly 24 of the signal transmission cable 2 consists of eight high-speed signal transmission lines 241, four first signal transmission lines 242, and a center line group 25. The eight high-speed signal transmission lines 241 are made of silver-plated copper wire and are evenly distributed around the wrapping layer 23 to form a central channel 24a, ensuring high efficiency and anti-interference capability of signal transmission. The transmission frequency of the high-speed signal transmission lines 241 can reach above 10 GHz, which is greater than the transmission frequency of the first signal transmission lines 242, which are generally between 50 and 100 MHz. In a specific embodiment, the number of high-speed signal transmission lines 241 is also greater than the number of first signal transmission lines 242. The four first signal transmission lines 242 are made of multi-strand twisted copper wire and are spaced apart between the high-speed signal transmission lines 241 for transmitting auxiliary signals, such as audio or low-speed data signals. The center wire assembly 25 includes structures such as low-speed signal transmission lines and power lines, housed within the center channel 24a, serving the functions of signal synchronization and power transmission. The external structure of the signal transmission cable 2 includes a wrapping layer 23, a first shielding layer 22, and a first outer sheath 21, sequentially covering the core assembly 24. The first shielding layer 22 uses a braided copper mesh to effectively isolate external electromagnetic interference; the wrapping layer 23 uses polyester fiber material to provide additional insulation and mechanical protection; the first outer sheath 21 uses FEP insulation material (fluorinated ethylene propylene copolymer) to protect the cable from mechanical damage and chemical corrosion.

[0028] The uniform distribution of the eight high-speed signal transmission lines 241 and the design of the central channel 24a in this application's data transmission line effectively reduce signal attenuation and crosstalk, improving signal transmission stability and anti-interference capability. The spacing of the four first signal transmission lines 242 further optimizes signal transmission integrity, supporting simultaneous transmission of multiple signals. The center line group 25 ensures signal synchronization and power transmission stability. The dual protection of the first shielding layer 22 and the wrapping layer 23 effectively isolates external electromagnetic interference, ensuring the purity of signal transmission. The material selection of the first outer sheath 21 provides comprehensive mechanical protection and electrical insulation, ensuring the stability and reliability of the cable in complex environments. For example, in practical applications, this data transmission line can be used to connect high-performance laptops to external monitors, high-speed hard drives, and other devices, enabling high-speed data transmission, high-resolution video output, and fast charging of devices, significantly improving the user experience.

[0029] Please see Figure 3 The high-speed signal transmission line 241 has a first insulating layer 29 and a tin-plated copper wire layer 26 wrapped around its outer periphery. The tin-plated copper wire layer 26 consists of multiple tin-plated copper wires wound around the first insulating layer and has a first winding direction.

[0030] In one embodiment, the high-speed signal transmission line 241 of this application incorporates a first insulation layer 29 and a tinned copper wire layer 26 in its structural design to enhance the stability and anti-interference capability of signal transmission. Specifically, a tinned copper wire layer 26 is wound around the outer periphery of the high-speed signal transmission line 241. This tinned copper wire layer 26 consists of multiple tinned copper wires with a diameter of 0.05±0.003mm, which are closely arranged and wound around the first insulation layer 29. The winding direction is right-hand (clockwise), forming the first winding direction. This winding method can effectively reduce electromagnetic interference during signal transmission while improving the mechanical strength and flexibility of the cable. The first insulation layer 29 is made of insulating plastic, such as polyvinyl chloride (PVC) or polyethylene (PE). In a specific embodiment, 51 tinned copper wires can be wound around the outer periphery of the high-speed signal transmission line 241 to form a uniform shielding layer, ensuring the high efficiency and stability of signal transmission. Furthermore, the thickness of the tin-plated copper wire layer 26 can be precisely controlled by adjusting the number of turns and the diameter of the copper wire to meet different signal transmission requirements.

[0031] The high-speed signal transmission line 241 of this application significantly improves the performance and reliability of signal transmission by wrapping a tin-plated copper wire layer 26 around its exterior. The introduction of the tin-plated copper wire layer 26 effectively reduces electromagnetic interference and improves the purity and stability of signal transmission. By using multiple tin-plated copper wires to form a uniform shielding layer, signal attenuation and crosstalk can be effectively reduced, ensuring the integrity of high-speed signals during transmission. Furthermore, the mechanical strength and flexibility of the tin-plated copper wire layer 26 improve the cable's durability, enabling it to maintain good performance in complex operating environments. For example, in practical applications, this high-speed signal transmission line 241 can be used to connect a high-performance computer to an external monitor, achieving 40Gbps high-speed data transmission and high-resolution video output, significantly improving the user experience.

[0032] Please see Figure 3 A copper foil 27 is wound around the outer periphery of the tin-plated copper wire layer 26, and the copper foil 27 has a second winding direction.

[0033] In the high-speed signal transmission line 241 structure of this application, a copper foil 27 is further wound around the outer periphery of the tin-plated copper wire layer 26 to enhance the shielding effect and the stability of signal transmission. In a specific embodiment, the copper foil 27 is a thin copper strip with a width of 3.5 mm, wound in a left-hand (counterclockwise) direction, forming a second winding direction. This left-hand wound copper foil 27 layer and the right-hand wound tin-plated copper wire layer 26 form an interlocking structure, effectively reducing electromagnetic interference and signal attenuation during signal transmission. For example, in a specific embodiment, the copper foil 27 layer can be tightly wound around the outer periphery of the tin-plated copper wire layer 26 to ensure that each turn of copper foil 27 is tightly attached to the tin-plated copper wire layer 26, forming a uniform and stable shielding layer. In addition, the thickness of the copper foil 27 layer can be adjusted according to actual needs to achieve the best shielding effect.

[0034] By wrapping copper foil 27 around the outer periphery of the tinned copper wire layer 26, the high-speed signal transmission line 241 of this application significantly improves the stability and anti-interference capability of signal transmission. The leftward winding direction of the copper foil layer 27 and the rightward winding direction of the tinned copper wire layer 26 form an interlocking structure, effectively reducing electromagnetic interference, signal attenuation, and crosstalk, ensuring the integrity and stability of high-speed signals during transmission. Furthermore, the introduction of the copper foil layer 27 also enhances the mechanical strength and flexibility of the cable, enabling it to maintain good performance in complex operating environments.

[0035] Please see Figure 3 An insulating strip 28 is wrapped around the outer periphery of the copper foil 27, and the winding direction of the insulating strip 28 is the same as the winding direction of the tin-plated copper wire layer 26.

[0036] In this embodiment, an insulating tape 28 is further wound around the outer periphery of the copper foil 27 to provide additional mechanical protection, insulation performance, and isolation of functional signals from the outside world. Specifically, the insulating tape 28 is a 3.5mm wide polyester film tape, wound in the same direction as the tinned copper wire layer 26, i.e., clockwise. This design ensures that the insulating tape 28 is tightly bonded to the copper foil 27 layer, forming a stable protective layer. In a specific embodiment, the insulating tape 28 can be tightly wound around the outer periphery of the copper foil 27, ensuring that each turn of the insulating tape 28 is tightly bonded to the copper foil 27 layer, forming a uniform and stable protective layer. Furthermore, the thickness of the insulating tape 28 can be adjusted according to actual needs to achieve the best protective effect. During the winding process, automated equipment can be used for precise control to ensure the uniformity and stability of the winding.

[0037] By wrapping an insulating tape 28 around the outer periphery of the copper foil 27, the high-speed signal transmission line 241 of this application significantly improves the mechanical strength and insulation performance of the cable. The rightward winding direction of the insulating tape 28 is opposite to the winding direction of the copper foil 27, forming a stable protective structure that effectively reduces damage to the cable caused by mechanical stress during use, while providing good insulation and further reducing electromagnetic interference. The tin-plated copper wire layer 26, copper foil 27, and insulating tape 28 adopt a right-left-right interlocking structure process to prevent deformation when the wire is bent under stress. This solves the problem of uneven wrapping and insulation during finished product processing, improving the stability of product characteristics and ensuring stable high-frequency transmission quality. This structural design not only enhances the durability of the cable but also ensures the stability and reliability of signal transmission.

[0038] Please see Figure 2 The center line group 25 includes several low-speed signal transmission lines 251 and hot-melt aluminum foil 252. The several low-speed signal transmission lines 251 are twisted together, and the hot-melt aluminum foil 252 is sleeved on the several low-speed signal transmission lines 251.

[0039] In one embodiment, the center wire group 25 is designed to optimize signal transmission stability and structural compactness. The center wire group 25 includes two low-speed signal transmission lines 251 and a layer of hot-melt aluminum foil 252. The two low-speed signal transmission lines 251 are twisted together to reduce signal interference and improve transmission stability. A layer of hot-melt aluminum foil 252 is wrapped around the outer periphery of the twisted low-speed signal transmission lines. This aluminum foil is melted by heating and tightly wrapped around the twisted cables to form a robust protective layer. The transmission frequency of the low-speed signal transmission lines 251 is at least 300MHz; the low-speed signal transmission lines 251 can be made of tinned copper wire with a diameter of 0.071±0.003mm, and the twist pitch is controlled within the range of 70±10mm to ensure the uniformity and stability of signal transmission. The thickness of the hot-melt aluminum foil 252 can be adjusted according to actual needs, typically around 0.05mm, to provide sufficient mechanical protection and electromagnetic shielding.

[0040] By employing a combination of stranded low-speed signal transmission lines 251 and thermoplastic aluminum foil 252 in the centerline group 25, the data transmission line group of this application significantly improves the stability of signal transmission and the mechanical strength of the cable. The stranded low-speed signal transmission lines 251 reduce crosstalk between signals, improving the clarity and reliability of signal transmission. The use of thermoplastic aluminum foil 252 not only enhances the physical protection of the cable but also provides additional electromagnetic shielding, further reducing the impact of external electromagnetic interference on signal transmission. This structural design enables the centerline group 25 to achieve efficient and stable signal transmission within a compact space, while improving the overall durability of the cable. For example, in practical applications, this design can be used to connect a laptop to an external monitor, enabling stable transmission of low-speed signals, such as USB 2.0 signals, while ensuring that the cable maintains good performance and structural integrity during frequent use.

[0041] Please see Figure 2 The center line group 25 also includes a first power transmission line 253, a cotton thread 254 and a cotton paper 255. The first power transmission line 253 is twisted together with two low-speed signal transmission lines 251 and the cotton thread 254 to form a cylindrical structure, and the cotton paper 255 is wound around the cylindrical structure.

[0042] In one embodiment of this application, the center wire group 25 further includes a first power transmission line 253, a cotton thread 254, and a cotton paper 255. The first power transmission line 253 provides power transmission and is twisted together with two low-speed signal transmission lines 251 and the cotton thread 254 to form a stable cylindrical structure. The addition of the cotton thread 254 helps fill the gaps inside the cable, ensuring the cable's roundness and flexibility. Finally, the cotton paper 255 is wound around the outer periphery of the cylindrical structure, providing additional insulation and protection. For example, the first power transmission line 253 can be made of tinned copper wire with a diameter of 0.1±0.005mm, with a twist pitch controlled within the range of 70±10mm. The cotton thread 254 can be of 10S*4 specification to ensure filling effect. The thickness of the cotton paper 255 can be adjusted according to actual needs, typically around 0.1mm, to provide sufficient insulation protection.

[0043] By adding a first power transmission line 253, cotton thread 254, and cotton paper 255 to the center wire assembly 25, the data transmission line assembly of this application not only enhances the functionality of the cable but also improves its overall stability and durability. The addition of the first power transmission line 253 enables the cable to transmit power and signals simultaneously, increasing its versatility. The filling effect of the cotton thread 254 ensures the cable's roundness and flexibility, making it less prone to damage during bending and stretching. The wrapping of the cotton paper 255 provides additional insulation protection, further reducing the risk of signal interference and electromagnetic leakage. This structural design allows the center wire assembly 25 to achieve efficient and stable signal and power transmission within a compact space, while improving the overall durability and reliability of the cable. For example, in practical applications, this design can be used to connect a laptop to an external monitor, enabling high-speed data transmission, low-speed signal transmission, and power supply, significantly improving the user experience while ensuring the cable's stability and durability in complex operating environments.

[0044] Please see Figure 1 The data transmission line group includes a connector 3, the power supply cable 1 has a second outer sheath 11, the connector 3 connects the first outer sheath 21 and the second outer sheath 11, and the first outer sheath 21, the second outer sheath 11 and the connector 3 are integrally formed.

[0045] In this embodiment, the power supply cable 1 has a second outer sheath 11, while the signal transmission cable 2 has a first outer sheath 21. A connector 3 connects the first outer sheath 21 and the second outer sheath 11, and the first outer sheath 21, the second outer sheath 11, and the connector 3 are integrally formed. This integrally formed structure can be achieved using a 70mm extruder, ensuring a seamless connection between the connector 3 and the outer sheath, improving overall mechanical strength and sealing. For example, in a specific embodiment, the connector 3 can use the same FEP insulation material as the first and second outer sheaths 21, forming an integral structure with the first and second outer sheaths 11 using a 70mm extruder. This design not only enhances the overall integrity of the cable but also reduces the risk of signal transmission interruption due to loosening or detachment of the connector 3. The integrally formed structure eliminates the signal transmission interruption problem caused by loosening or detachment of the connector 3 in traditional connection methods, ensuring the stability and durability of the cable in complex operating environments. Furthermore, this design improves the cable's waterproof and dustproof performance, further enhancing its protective capabilities. For example, in practical applications, this type of data transmission cable can be used to connect laptops to external monitors, maintaining stable signal transmission and power supply even with frequent plugging and unplugging and movement, significantly improving the user experience while extending the cable's lifespan.

[0046] This application also proposes a smart device, including a data transmission line assembly.

[0047] In one embodiment, the smart device includes, but is not limited to, laptops, tablets, smartphones, and smart displays. These devices connect to external devices via a data transmission cable assembly to achieve high-speed data transmission, video signal transmission, and power supply. For example, a laptop can connect to an external display via the data transmission cable assembly to achieve high-speed data transmission of 40Gbps and high-resolution video output; a tablet can connect to a charger via the data transmission cable assembly for fast charging; a smartphone can connect to a computer via the data transmission cable assembly for data synchronization and charging; and a smart display can connect to a computer or other devices via the data transmission cable assembly for high-definition video signal transmission and power supply. This integrated design allows smart devices to perform multiple functions with a single cable, improving portability and ease of use.

[0048] This application also proposes a method for manufacturing a data transmission cable assembly, comprising the following steps: Step S100: Select copper wire stranded high-speed signal transmission line 241, first signal transmission line 242, low-speed signal transmission line 251, first power transmission line 253, second signal transmission line 12 and second power transmission line 13. In step S200, a barrier layer and a second shielding layer are respectively wrapped around the outer periphery of the high-speed signal transmission line 241, the first signal transmission line 242, the low-speed signal transmission line 251, the first power transmission line 253, the second signal transmission line 12, and the second power transmission line 13. The barrier layer is typically made of polymers such as polyimide film, polyacetylene, or polyaniline. These materials possess properties such as high temperature resistance, high insulation, and chemical corrosion resistance, making them suitable for fabricating barrier layers that effectively block electromagnetic signals and prevent signal interference. The second shielding layer is typically made of aluminum foil, copper foil, or a copper-aluminum composite layer. These materials have good conductivity and electromagnetic shielding performance, effectively shielding external electromagnetic waves and reducing signal interference.

[0049] In step S300, two low-speed signal transmission lines 251 are twisted together and then twisted together with the first power transmission line 253 and the cotton thread 254 to form a center line group 25. With the center line group 25 as the center, eight high-speed signal transmission lines 241 and four first signal transmission lines 242 are arranged around it and twisted together to form a core assembly 24. Step S400: After wrapping the core assembly 24 with the wrapping tape layer 23 and the first shielding layer 22, a signal transmission cable 2 is formed. In step S500, a second signal transmission line 12, two second power transmission lines 13, and cotton thread 254 are twisted together to form a power supply cable 1. Step S600: The outer sheath is integrally wrapped around the outer periphery of the signal transmission cable 2 and the power supply cable 1.

[0050] Before step S100, seven silver-plated copper strands with a diameter of 0.103±0.003 mm are selected and stranded together to form a high-speed signal transmission line 241; nineteen tin-plated copper strands with a diameter of 0.04±0.003 mm are selected and stranded together to form a first signal transmission line 242; seven tin-plated copper strands with a diameter of 0.071±0.003 mm are selected and stranded together to form a low-speed signal transmission line 251; thirty-seven tin-plated copper strands with a diameter of 0.1±0.005 mm are selected and stranded together to form a first power transmission line 253; seven tin-plated copper strands with a diameter of 0.10±0.003 mm are selected and stranded together to form a second signal transmission line 12; and seventy-two tin-plated copper strands with a diameter of 0.12±0.005 mm are selected and stranded together to form a second power transmission line 13.

[0051] Before step S100, eight high-speed signal transmission lines 241 are selected, and 51 tin-plated copper strips of 0.05±0.003 mm are wound to the right on the surface of the eight high-speed signal transmission lines 241 respectively. Then, a copper foil 27 with a width of 3.5 mm is wound to the left on the surface. Finally, an insulating tape 28 with a width of 3.5 mm is wound to the right on the surface of the copper foil 27.

[0052] In this embodiment, the insulation tape 28 of the eight high-speed signal transmission lines 241 are yellow, purple, brown, orange, blue, black, green, and white, respectively. A horizontal winding machine is used, and a wire breakage alarm is installed to ensure that each wire surface is uniformly wrapped with 51 copper wires. A bump tester is used to detect the location of bumps and dips in the wires, ensuring a smooth and uniform wrapping surface. Finally, high-frequency testing was performed on the finished eight high-speed signal transmission lines 241 (1M length, USB 4.0, Gen3 standard). High-frequency characteristics were tested using high-frequency testing software, and the results are as follows: 1. Test Item: Single-ended impedance

[0053] 2. Test Item: Differential Impedance

[0054] 3. Test content: Internal latency difference

[0055] 4. Test content: Differential to common mode conversion

[0056] 5. Test content: Attenuation

[0057] In one embodiment, two low-speed signal transmission lines 251 are surrounded by an FEP insulation layer of high-quality material with a dielectric constant ε2.1, forming a wire outer diameter of 0.47±0.02mm. A 50mm ultra-fine extruder is used to form green and white low-speed signal transmission lines 251. During extrusion, a non-contact laser diameter gauge is used to measure the outer diameter; a bump tester is used to detect the location of bumps and depressions on the wire to ensure a smooth and uniform surface; and a spark tester is used to detect surface damage to ensure the quality of the sheath layer (its accuracy is achieved through 100% online wire diameter monitoring equipment, an automatic wire diameter control system, and core wire diameter tolerance control within ±0.02mm). Finally, the two finished low-speed signal transmission lines 251 are tested according to the USB 2.0 standard, and the results are as follows: 1. Test content: Impedance

[0058] 2.2. Test Content: Differential Delay

[0059] 2.3. Test Content: Internal Delay Time Difference

[0060] 2.4. Test Content: Attenuation

[0061] The eight high-speed signal transmission lines 241 meet high-frequency characteristic testing standards, enabling high-speed data transmission, such as the 40Gbps Thunderbolt 4 interface requirement. Simultaneously, the two low-speed signal transmission lines 251 meet USB 2.0 standard testing, ensuring stable transmission of low-speed signals. This design not only meets the demands of high-speed data transmission but also ensures compatibility with low-speed signals, allowing the data transmission cable assembly to be widely used in various smart devices, such as laptops, tablets, and smartphones, significantly enhancing the device's versatility and user experience.

[0062] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0063] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0064] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A data transmission line set, characterized in that, The utility model provides a data transmission line group, which comprises: a power supply cable (1) for charging a smart device; a signal transmission cable (2) for transmitting signals, the power supply cable (1) and the signal transmission cable (2) being arranged side by side; the signal transmission cable (2) comprises, from outside to inside, a first outer sheath (21), a first shielding layer (22), a wrapping layer (23) and a core assembly (24), the wrapping layer (23) being wrapped on the outside of the core assembly (24), the first shielding layer (22) being wrapped on the outside of the wrapping layer (23), and the first outer sheath (21) being wrapped on the outside of the first shielding layer (22); the core assembly (24) comprises a plurality of high-speed signal transmission lines (241), a plurality of first signal transmission lines (242) and a center line group (25), each high-speed signal transmission line (241) being arranged circumferentially along the wrapping layer (23) and enclosing a central passage (24a), each first signal transmission line (242) being arranged between the high-speed signal transmission lines (241), and the center line group (25) being accommodated in the central passage (24a) and being limited in position.

2. The data transmission line set according to claim 1, characterized in that, The outer periphery of the high-speed signal transmission line (241) has a first insulating layer (29) and a tinned copper wire layer (26) wrapped in sequence, the tinned copper wire layer (26) being a plurality of tinned coppers wound on the first insulating layer (29), and the tinned copper wire layer (26) having a first winding direction.

3. The data transmission line set according to claim 2, characterized in that The outer periphery of the tinned copper wire layer (26) is wound with a copper foil (27), and the copper foil (27) has a second winding direction.

4. The data transmission line set according to claim 3, characterized in that, The outer periphery of the copper foil (27) is wound with an insulating tape (28), and the winding direction of the insulating tape (28) is the same as that of the tinned copper wire layer (26).

5. The data transmission line set according to any one of claims 1 to 4, characterized in that, The center line group (25) comprises a plurality of low-speed signal transmission lines (251) and a hot-melt aluminum foil (252), and the plurality of low-speed signal transmission lines (251) are twisted, and the hot-melt aluminum foil (252) is sleeved on the plurality of low-speed signal transmission lines (251).

6. The data transmission line set according to claim 5, characterized in that The center line group (25) further comprises a first power supply transmission line (253), a cotton thread (254) and a flannel paper (255), the first power supply transmission line (253) being twisted with two low-speed signal transmission lines (251) and the cotton thread (254) to form a cylindrical structure, and the flannel paper (255) being wound on the cylindrical structure.

7. The data transmission line set according to any one of claims 1 to 4, characterized in that, The utility model provides a data transmission line group, which comprises:

8. A smart device, comprising: a connecting piece (3), the power supply cable (1) having a second outer sheath (11), the connecting piece (3) connecting the first outer sheath (21) and the second outer sheath (11), and the first outer sheath (21), the second outer sheath (11) and the connecting piece (3) being integrally formed.

9. A method of manufacturing a cable assembly for making a data transmission cable assembly according to any one of claims 1-7, characterized in that, The utility model provides a data transmission line group, which comprises: the steps of: Selecting copper wire to twist the high-speed signal transmission line (241), the first signal transmission line (242), the low-speed signal transmission line (251), the first power transmission line (253), the second signal transmission line (12) and the second power transmission line (13); The outer periphery of the high-speed signal transmission line (241), the first signal transmission line (242), the low-speed signal transmission line (251), the first power transmission line (253), the second signal transmission line (12) and the second power transmission line (13) are respectively covered with a barrier layer and a second shielding layer; Twist two low-speed signal transmission lines (251) together with the first power transmission line (253) and the cotton thread (254) to form the center line group (25), and arrange eight high-speed signal transmission lines (241) and four first signal transmission lines (242) around the center line group (25) to form the core assembly (24); After winding the braid layer (23) and the first shielding layer (22) around the outer periphery of the core assembly (24), the signal transmission cable (2) is formed; Twist one second signal transmission line (12), two second power transmission lines (13) and a cotton thread (254) together to form the power supply cable (1); Integrally coat an outer protective layer on the outer wall of the signal transmission cable (2) and the power supply cable (1).

10. The method of claim 9, wherein the wire group is formed by a process comprising: Before the step of selecting copper wire to twist the high-speed signal transmission line (241), the first signal transmission line (242), the low-speed signal transmission line (251), the first power transmission line (253), the second signal transmission line (12) and the second power transmission line (13), select seven silver-plated copper wires with a diameter of 0.103±0.003 mm to twist the high-speed signal transmission line (241), select nineteen tin-plated copper wires with a diameter of 0.04±0.003 mm to twist the first signal transmission line (242), select seven tin-plated copper wires with a diameter of 0.071±0.003 mm to twist the low-speed signal transmission line (251), select thirty-seven tin-plated copper wires with a diameter of 0.1±0.005 mm to twist the first power transmission line (253), select seven tin-plated copper wires with a diameter of 0.10±0.003 mm to twist the second signal transmission line (12), and select seventy-two tin-plated copper wires with a diameter of 0.12±0.005 mm to twist the second power transmission line (13). ​ 11. The method of claim 10, wherein the wire group is formed by a process comprising: Before the step of selecting copper wire to twist the high-speed signal transmission line (241), the first signal transmission line (242), the low-speed signal transmission line (251), the first power transmission line (253), the second signal transmission line (12) and the second power transmission line (13), it also includes: ​ Eight of the high-speed signal transmission lines (241) are selected, and 51 pieces of 0.05±0.003 mm tinned copper are right-wound on the surfaces of the eight high-speed signal transmission lines (241) respectively, then a copper foil (27) with a width of 3.5 mm is left-wound on the surfaces, and finally an insulating tape (28) with a width of 3.5 mm is right-wound on the surfaces of the copper foil (27).

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