A cable having a flat ground

Abstract

The utility model provides a kind of cable with flat ground wire, comprising: cable core, the cable core outside is sequentially equipped with drag package aluminum foil layer and around package hot melt milar layer from inside to outside, the drag package aluminum foil layer drags into flat tinned copper ground wire;It aims to optimize assembly welding structure by introducing flat ground wire, improve the grounding effect of cable, and enhance the performance of cable in reliability test;This cable structure not only simplifies the assembly process, improves production efficiency, but also significantly improves the electrical performance and stability of cable, provides strong guarantee for the normal operation of complex electronic equipment and system.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a cable with a flat ground wire. Background Technology

[0002] In the field of wires and cables, the structural design of cables directly affects their electrical performance, mechanical strength, and ease of assembly. Traditional cable structures, especially those used in complex electronic equipment and systems, often face problems such as cumbersome assembly processes, poor grounding, and insufficient reliability.

[0003] Traditional cable structures typically lack dedicated grounding designs or have inadequate grounding designs, leading to complex and inefficient soldering processes during assembly. Furthermore, the absence or improper design of the grounding wire makes it difficult to guarantee the effective grounding of the cable within components, potentially impacting the overall electrical performance and stability of the system. This is particularly critical in fields such as automotive electronics, aerospace, and communication equipment, where the requirements for cable grounding and reliability are extremely high, and traditional cable structures often fall short of meeting these demands.

[0004] Furthermore, traditional cable structures do not perform satisfactorily in reliability tests. For example, in cables without a ground wire, solder joints are prone to variation during double 85 testing (testing cable performance in an environment of 85°C high temperature and 85% high humidity) and temperature cycling testing, leading to poor contact or failure. This is because the lack of a ground wire to provide additional electrical connection and support makes the cable susceptible to damage in harsh environments.

[0005] The above background information is provided only to assist in understanding the utility model concept and technical solution of this utility model. It does not necessarily belong to the prior art of this patent application, nor does it necessarily provide technical teaching. In the absence of clear evidence that the above information was disclosed before the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content

[0006] To address the technical problems of traditional cable structures, which often lack dedicated grounding designs or have inadequate grounding designs, leading to complex and inefficient welding processes during assembly and unsatisfactory performance in reliability tests, this invention proposes a cable with a flat grounding wire. The aim is to optimize the assembly and welding structure by introducing a flat grounding wire, improve the cable's grounding effect, and enhance its performance in reliability tests. This cable structure not only simplifies the assembly process and improves production efficiency but also significantly enhances the cable's electrical performance and stability, providing strong support for the normal operation of complex electronic equipment and systems.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] On the one hand, this utility model provides a cable with a flat ground wire, including: a cable core, wherein the outer side of the cable core is provided with a drag-wrapped aluminum foil layer and a wrapping hot-melt Mylar layer from the inside to the outside, and the drag-wrapped aluminum foil layer is dragged into a flat tin-plated copper ground wire.

[0009] This invention proposes a cable with a flat ground wire, which aims to optimize the assembly and welding structure, improve the grounding effect of the cable, and enhance the performance of the cable in reliability tests by introducing a flat ground wire. This cable structure not only simplifies the assembly process and improves production efficiency, but also significantly improves the electrical performance and stability of the cable, providing a strong guarantee for the normal operation of complex electronic equipment and systems.

[0010] As a preferred technical solution, at least two flat tin-plated copper ground wires are provided, and these two flat tin-plated copper ground wires are correspondingly arranged at both ends of the cable core.

[0011] As a preferred technical solution, the aluminum surface on the aluminum foil layer is disposed on the side close to the wrapping hot melt Mylar layer.

[0012] As a preferred technical solution, the coverage of the aluminum foil layer in the package is ≥100%.

[0013] As a preferred technical solution, the coverage of the wrapping hot-melt Mylar layer is ≥100%.

[0014] As a preferred technical solution, the cable core includes at least two single-core wires, which are twisted together to form the cable core.

[0015] As a preferred technical solution, the single-core wire includes: a silver-plated copper conductor and a fluorinated ethylene propylene insulation layer disposed on the outside of the silver-plated copper conductor.

[0016] As a preferred technical solution, a polytetrafluoroethylene (PTFE) wrapping layer is further provided between the cable core and the aluminum foil layer.

[0017] As a preferred technical solution, the wrapped polytetrafluoroethylene tape layer includes: a polytetrafluoroethylene tape, which is wrapped around the outside of the cable core with an overlap rate of ≥25% to form a wrapped polytetrafluoroethylene tape layer.

[0018] The cable with a flat ground wire provided by this utility model has the following beneficial effects:

[0019] 1) The present invention provides a cable with a flat ground wire, which aims to optimize the assembly and welding structure by introducing a flat ground wire, improve the grounding effect of the cable, and enhance the performance of the cable in reliability tests. This cable structure not only simplifies the assembly process and improves production efficiency, but also significantly improves the electrical performance and stability of the cable, providing a strong guarantee for the normal operation of complex electronic equipment and systems.

[0020] 2) The present invention provides a cable with a flat ground wire. Compared with the traditional round ground wire, the flat ground wire has a larger grounding area and can form a closer contact with the ground or other grounding bodies, thereby improving the stability and reliability of grounding. The introduction of the flat ground wire helps to reduce the grounding resistance, so that the grounding current can flow into the ground more smoothly, thereby enhancing the grounding effect of the cable.

[0021] The flat tin-plated copper ground wire is tin-plated, and the tin layer can protect the internal copper wire from oxidation and corrosion, thereby improving the conductivity of the wire. The aluminum foil layer and the flat ground wire together form an electromagnetic shielding structure, which can effectively block external electromagnetic interference and protect the internal signal transmission of the cable from being affected.

[0022] Flat ground wires have a stable structure and are not easily deformed or broken by external forces, thus ensuring the stability of the cable during long-term use. Tin plating can enhance the corrosion resistance and oxidation resistance of the ground wire, extending the service life of the cable. At the same time, wrapping with a hot melt Mylar layer can also provide additional protection to prevent the cable from being mechanically damaged.

[0023] The hot-melt Mylar wrapping layer has excellent insulation properties, preventing current leakage between the cable core and the external environment and ensuring the safe use of the cable. The hot-melt Mylar wrapping layer also has good heat resistance and fire resistance, maintaining stable performance in high-temperature environments and preventing safety accidents such as fires caused by overheating of the cable. The hot-melt Mylar wrapping layer also enhances the durability of the cable, enabling it to maintain good performance and service life in various harsh environments.

[0024] 3) The present invention provides a cable with a flat ground wire, wherein the aluminum foil layer is dragged into the flat tinned copper ground wire, which greatly optimizes the convenience of assembly and welding without affecting the width, ensures the good grounding of the cable in the component, and greatly optimizes the reliability test results. Attached Figure Description

[0025] Figure 1 A schematic diagram of the structure of a cable with a flat ground wire provided by this utility model;

[0026] Figure 2 A structural schematic diagram of a cable with a flat ground wire provided by this utility model from another perspective;

[0027] Among them, 1-aluminum foil layer; 2-flat tinned copper ground wire; 3-single core wire; 4-silver-plated copper conductor; 5-insulation layer; 6-hot melt Mylar layer; 7-polytetrafluoroethylene tape layer. Detailed Implementation

[0028] The preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0029] like Figure 1-2 As shown, this utility model provides a cable with a flat ground wire, including: a cable core, wherein the outer side of the cable core is provided with a drag-wrapped aluminum foil layer 1 and a wrapping hot-melt Mylar layer 6 from the inside to the outside, and the drag-wrapped aluminum foil layer 1 is dragged into a flat tin-plated copper ground wire 2.

[0030] This utility model provides a cable with a flat ground wire, which aims to optimize the assembly and welding structure by introducing a flat ground wire, improve the grounding effect of the cable, and enhance the performance of the cable in reliability tests. This cable structure not only simplifies the assembly process and improves production efficiency, but also significantly improves the electrical performance and stability of the cable, providing a strong guarantee for the normal operation of complex electronic equipment and systems.

[0031] Compared to traditional round ground wires, flat ground wires have a larger grounding area, enabling them to form a closer contact with the ground or other grounding bodies, thereby improving the stability and reliability of grounding. The introduction of flat ground wires helps to reduce grounding resistance, allowing grounding current to flow more smoothly into the earth, thus enhancing the grounding effect of the cable.

[0032] The flat tin-plated copper ground wire 2 is tin-plated. The tin layer can protect the internal copper wire from oxidation and corrosion, thereby improving the conductivity of the wire. The aluminum foil layer and the flat ground wire together form an electromagnetic shielding structure, which can effectively block external electromagnetic interference and protect the signal transmission inside the cable from being affected.

[0033] The flat tin-plated copper ground wire 2 has a stable structure and is not easily deformed or broken by external forces, thus ensuring the stability of the cable during long-term use. Tin plating can enhance the corrosion resistance and oxidation resistance of the ground wire and extend the service life of the cable. At the same time, the wrapping hot melt Mylar layer can also provide additional protection to prevent the cable from being mechanically damaged.

[0034] The hot-melt Mylar layer 6 has excellent insulation properties, which can prevent current leakage between the cable core and the external environment and ensure the safe use of the cable. The hot-melt Mylar layer has good heat resistance and fire resistance, and can maintain stable performance in high-temperature environments, preventing safety accidents such as fires caused by overheating of the cable. The hot-melt Mylar layer can also enhance the durability of the cable, so that it can maintain good performance and service life in various harsh environments.

[0035] Specifications of the hot-melt Mylar layer 6: 2±0.005mm, thickness 0.017±0.005mm, preferably (2×0.021)mm. Due to space limitations and for the sake of brevity, this invention will not exhaustively list the specific point values ​​included in the range.

[0036] The finished dimensions of the cable with a flat ground wire are (0.82±0.05)×(1.21±0.07)mm, and the preferred finished dimensions of the cable with a flat ground wire are 0.81×1.21mm. Due to space limitations and for the sake of brevity, the present invention will not exhaustively list the specific point values ​​included in the range.

[0037] Preferably, such as Figure 1-2 As shown, at least two flat tinned copper ground wires 2 are provided, and these two flat tinned copper ground wires 2 are correspondingly arranged at both ends of the cable core;

[0038] The flat tin-plated copper ground wire 2 has the following specifications: (5.0±0.005)×(0.025±0.005)mm, and preferably (0.5×0.028)mm. Due to space limitations and for the sake of brevity, this invention will not exhaustively list the specific point values ​​included in the range.

[0039] The double-ended grounding design ensures that the cable can form a good grounding connection at both ends, thereby enhancing the grounding stability of the cable. This design is particularly suitable for applications that require high-stability grounding, such as precision electronic equipment and communication systems. By setting flat tin-plated copper ground wires 2 at both ends of the cable core, the grounding resistance can be effectively reduced, allowing the grounding current to flow into the ground more smoothly, thereby improving the grounding efficiency of the cable.

[0040] Flat tinned copper ground wires 2 are placed at both ends of the cable core, which can enhance the tensile strength of the cable. When the cable is stretched by external force, the ground wires can share part of the tensile force, thereby protecting the cable core from damage. The double-end grounding design increases the redundancy of the cable. Even if one ground wire fails or is damaged, the other ground wire can still continue to function, ensuring that the grounding and shielding performance of the cable is not affected.

[0041] The double-ended grounding design makes the grounding connection more convenient and reliable. When maintenance or replacement of the ground wire is required, the double-ended grounding design makes the operation simpler. You only need to make the corresponding connection or disconnection operation at both ends, without having to disassemble the entire cable structure.

[0042] Preferably, such as Figure 1-2 As shown, the aluminum surface on the aluminum foil layer 1 is disposed on the side close to the wrapping hot melt Mylar layer 6;

[0043] As a high-quality conductive material, the aluminum foil layer 1 has excellent electromagnetic shielding performance. Placing the aluminum surface on the side close to the hot-melt Mylar layer 6 can more effectively block external electromagnetic waves from interfering with the internal signals of the cable, ensuring stable signal transmission.

[0044] The aluminum foil layer 1 not only has electromagnetic shielding function, but also helps the cable dissipate heat to a certain extent. When the cable is working, it will generate a certain amount of heat. By placing the aluminum surface close to the hot melt Mylar layer 6, the thermal conductivity of the aluminum foil can be used to conduct the heat away more effectively, preventing the cable from overheating and thus extending the cable's service life and stability.

[0045] The aluminum foil layer 1 has a certain degree of rigidity and toughness, which can enhance the overall structural strength of the cable. Placing the aluminum surface on the side close to the hot-melt Mylar layer 6 can improve the cable's tensile and bending mechanical properties to a certain extent. By enhancing the structural strength of the cable, it can maintain good performance and service life in various harsh environments, which is especially important for application scenarios that require long-term stable operation.

[0046] Preferably, such as Figure 1-2 As shown, the coverage of the aluminum foil layer 1 in the tow bag is ≥100%;

[0047] Preferably, the specifications of the aluminum foil layer 1 of the towing package are 3±0.005mm and the thickness is 0.05±0.005mm. The preferred specifications of the aluminum foil layer 1 of the towing package are 3.995mm, 4mm or 4.005mm and the preferred thickness is 0.022mm, 0.030mm or 0.032mm. Due to space limitations and for the sake of brevity, the present invention will not exhaustively list the specific point values ​​included in the range.

[0048] When the coverage of the aluminum foil layer 1 reaches 100%, it can ensure that there are no unshielded areas on the outside of the cable. This helps to prevent external electromagnetic waves from entering the inside of the cable and interfering with signal transmission. The fully covered aluminum foil layer 1 can more effectively block the propagation of electromagnetic waves, thereby improving the electromagnetic shielding performance of the cable. This is crucial for protecting sensitive signals, reducing signal attenuation, and ensuring signal integrity.

[0049] When the aluminum foil layer 1 itself has a certain rigidity and toughness, it can enhance the overall structural strength of the cable. When the coverage reaches 100%, this enhancement effect is more obvious, making the cable less susceptible to damage when subjected to external forces. The aluminum foil layer 1 can also effectively block the intrusion of moisture and corrosive substances, thereby extending the service life of the cable, which is especially important for cables used in humid or corrosive environments.

[0050] When the aluminum foil layer 1 has good thermal conductivity, it can help the cable dissipate heat more effectively. When the coverage reaches 100%, it can ensure that the heat on the cable surface can be conducted away evenly and quickly, preventing the cable from overheating.

[0051] Preferably, such as Figure 1-2 As shown, the coverage of the wrapped hot-melt Mylar layer 6 is ≥100%;

[0052] The hot-melt Mylar layer 6 has excellent insulation properties. When the coverage reaches 100%, it can ensure that every part of the cable is effectively insulated, preventing current leakage or short circuit, thereby ensuring the safe operation of the cable.

[0053] The hot-melt Mylar layer 6 has a certain strength and toughness. When the coverage reaches 100%, it can significantly enhance the tensile strength of the cable and prevent the cable from breaking due to excessive force during use.

[0054] The hot-melt Mylar layer 6 has a certain electromagnetic shielding performance. When the coverage reaches 100%, it can more effectively block the interference of external electromagnetic waves and protect the stable transmission of signals inside the cable.

[0055] In summary, the coverage of the hot-melt Mylar layer 6 reaches or exceeds 100%, which can fully protect the cable, enhance mechanical strength, optimize thermal management, and improve electromagnetic shielding performance, thereby ensuring the stable operation and long-term reliability of the cable in various complex environments.

[0056] Preferably, such as Figure 1-2 As shown, the cable core includes at least two single-core wires 3, which are twisted together to form the cable core. The design of the cable core being formed by twisting together at least two single-core wires 3 can significantly improve the flexibility and mechanical strength of the cable, improve electrical performance, enhance durability and reliability, and adapt to various application scenarios. These effects together ensure the stable operation and long-term reliability of the cable in various complex environments.

[0057] Preferably, such as Figure 1-2 As shown, the single-core wire 3 includes: a silver-plated copper conductor 4 and a fluorinated ethylene propylene insulation layer 5 disposed on the outside of the silver-plated copper conductor 4.

[0058] Preferably, such as Figure 1-2 As shown, the specification of the silver-plated copper conductor 4 is 0.22±0.008mm. The preferred specifications of the silver-plated copper conductor 4 are 0.212mm, 0.221mm or 0.228mm. Due to space limitations and for the sake of brevity, the present invention will not exhaustively list the specific point values ​​included in the range.

[0059] The silver-plated copper conductor 4 significantly reduces the surface resistance of the conductor through silver plating, thereby improving the overall conductivity. Silver is a material with excellent conductivity, and its conductivity is better than that of copper. Therefore, the silver-plated copper conductor 4 can transmit current or signals more effectively and reduce energy loss.

[0060] The silver plating layer protects the copper conductor from oxidation and corrosion, thus extending the cable's lifespan. It also isolates the copper conductor from direct contact with oxygen and moisture in the air, preventing oxide formation on the surface and maintaining its good conductivity. Silver-plated copper conductors are easier to weld with other metals, improving the reliability and stability of cable connections. The silver plating layer has good wettability and flowability, facilitating rapid fusion of metals during welding. Furthermore, the silver plating layer has a certain degree of hardness, increasing the copper conductor's wear resistance and reducing wear caused by friction during use.

[0061] The main function of the fluorinated ethylene propylene insulation layer 5 is to provide electrical insulation, prevent current leakage between the silver-plated copper conductors 4 or between the silver-plated copper conductors 4 and the external environment, and ensure the safe operation of the cable. The insulation layer 5 can protect the silver-plated copper conductors 4 from adverse factors such as mechanical damage, chemical corrosion and moisture, and extend the service life of the cable.

[0062] Preferably, such as Figure 1-2 As shown, a polytetrafluoroethylene (PTFE) tape layer 7 is also provided between the cable core and the aluminum foil layer 1. The PTFE tape layer 7, located outside the fluorinated ethylene propylene insulation layer 5, can significantly enhance the cable's insulation performance, heat resistance, low temperature resistance, chemical corrosion resistance, and mechanical protection capabilities, while also improving the cable's flexibility, enabling it to maintain stable performance in various complex environments.

[0063] Preferably, such as Figure 1-2 As shown, the PTFE wrapping layer 7 includes a PTFE tape wrapped around the outside of the cable core with an overlap rate of ≥25% to form a PTFE wrapping layer. This PTFE wrapping layer, with an overlap rate of ≥25%, provides strong support for the stable operation of the cable by enhancing insulation performance, improving heat and low-temperature resistance, enhancing chemical corrosion resistance, providing additional mechanical protection, and improving cable flexibility. The ≥25% overlap rate of the PTFE wrapping layer means a larger contact area and tighter connection between the layers. This not only increases the mechanical strength of the wrapping layer but also improves the cable's sealing performance, preventing external moisture, dust, and other harmful substances from entering the cable.

[0064] Preferably, such as Figure 1-2As shown, the polytetrafluoroethylene (PTFE) tape has a diameter of 3 ± 0.005 mm and a thickness of 0.05 ± 0.005 mm. The preferred diameter of the PTFE tape is 2.995 mm, 3 mm, or 3.005 mm, and the preferred thickness is 0.045 mm, 0.049 mm, or 0.055 mm. Due to space limitations and for the sake of brevity, this invention will not exhaustively list the specific values ​​included in the range.

[0065] like Figure 1-2 As shown, this utility model provides a cable with a flat ground wire, comprising: a silver-plated copper conductor 4, the silver-plated copper conductor 4 having, from the inside out, a fluorinated ethylene propylene insulation layer 5, a wrapped polytetrafluoroethylene tape layer 7, a drag-wrapped aluminum foil layer 1, and a wrapped hot-melt Mylar layer 6, the drag-wrapped aluminum foil layer 1 being dragged into a flat tin-plated copper ground wire 2, the flat tin-plated copper ground wire 2 being arranged vertically and vertically; this not only improves the grounding effect of the cable, but also enhances the cable's performance in reliability tests. This cable structure not only simplifies the assembly process and improves production efficiency, but also significantly improves the electrical performance and stability of the cable, providing a strong guarantee for the normal operation of complex electronic equipment and systems.

[0066] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are protected by this utility model.

Claims

1. A cable with a flat ground wire, characterized in that, include: The cable core has an aluminum foil layer and a hot-melt Mylar layer arranged sequentially from the inside to the outside on its outer side. The aluminum foil layer is then pulled into a flat tinned copper ground wire. At least two flat tinned copper ground wires are provided, and these two flat tinned copper ground wires are respectively arranged at both ends of the cable core.

2. The cable with a flat ground wire according to claim 1, characterized in that, The aluminum surface of the drag-wrapped aluminum foil layer is located on the side close to the wrapping hot-melt Mylar layer.

3. The cable with a flat ground wire according to claim 1, characterized in that, The coverage of the aluminum foil layer in the tow bag is ≥100%.

4. The cable with a flat ground wire according to claim 1, characterized in that, The coverage of the wrapped hot-melt Mylar layer is ≥100%.

5. The cable with a flat ground wire according to claim 1, characterized in that, The cable core includes at least two single-core wires, which are twisted together to form the cable core.

6. The cable with a flat ground wire according to claim 5, characterized in that, The single-core wire includes: a silver-plated copper conductor and a fluorinated ethylene propylene insulation layer disposed on the outside of the silver-plated copper conductor.

7. The cable with a flat ground wire according to claim 6, characterized in that, A polytetrafluoroethylene (PTFE) wrapping layer is also provided between the cable core and the aluminum foil layer.

8. The cable with a flat ground wire according to claim 7, characterized in that, The wrapped polytetrafluoroethylene tape layer includes: a polytetrafluoroethylene tape, which is wrapped around the outside of the cable core with an overlap rate of ≥25% to form a wrapped polytetrafluoroethylene tape layer.

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