STP cable for high-flexibility vehicle

Abstract

The utility model provides a high-flexibility STP cable for a vehicle. The high-flexibility STP cable sequentially comprises twisted-pair wire cores, a metal shielding layer, a shielding braid layer and a sheath from inside to outside, and the shielding braid layer is formed by weaving an Alu Coat aluminum coating basalt fiber shielding braid layer on the surface of the metal shielding layer, and adopts 24 ingots and 10 Alu Coat aluminum coating basalt fiber conductors with the monofilament diameter of 0.23 [mu] m to be uniformly attached to the surface of the metal shielding layer. The wire core is composed of seven tinned copper conductors and a foamed PP insulating layer, wherein the maximum diameter of each tinned copper conductor is 0.16 mm, and the outer diameter of each tinned copper conductor is 1.3-2.6 mm. And the sheath is made of a TPU (Thermoplastic Polyurethane) material. The utility model provides the high-flexibility STP cable for the vehicle, which is light in weight, low in cost and stable in structure.

Description

Technical Field

[0001] This utility model belongs to the technical field of cables, specifically referring to a highly flexible STP cable for automotive applications. Background Technology

[0002] With the development of intelligent and connected vehicles, the data volume and transmission rate requirements of in-vehicle networks are constantly increasing. As autonomous driving functions become more and more popular, the demand for in-vehicle STP shielded Ethernet is rapidly developing in the direction of higher bandwidth and higher transmission rate.

[0003] Automotive STP shielded cables feature a metallic shielding layer that effectively blocks external electromagnetic interference from entering the cable and prevents electromagnetic radiation from transmitted signals, ensuring stable and reliable data transmission. This makes them particularly suitable for the complex electromagnetic environments within automobiles. They support high data transmission rates, such as symmetrical transmission rates of 2.5Gbit / s, 5Gbit / s, and 10Gbit / s under the 10GBase-T1 standard, meeting the bandwidth requirements of applications like intelligent driving and high-definition video transmission. STP shielded cables enable low-latency data transmission, crucial for control systems requiring real-time response, such as autonomous driving systems and Advanced Driver Assistance Systems (ADAS), ensuring vehicles respond quickly and accurately to environmental changes. They are used in various scenarios including autonomous driving systems, ADAS, multimedia entertainment systems, vehicle networks, and information systems.

[0004] The structure of automotive STP shielded cables generally uses stranded copper as the inner conductor, with an insulating medium wrapped around the inner conductor. A metal tape is first wrapped around the insulating medium, and a non-magnetic metal wire braided layer is wrapped around the metal tape to serve as the outer conductor and shield. Finally, a sheath material is covered on the outer braided shielding structure.

[0005] Traditional STP shielded cables suffer from low overall cable flexibility and relatively stiff wires. In certain applications, frequent bending, repeated bending, and twisting can easily lead to conductor breakage. Furthermore, in the complex environment of vehicles, they are difficult to bend or the bending angle is too small, resulting in communication failures. These situations pose a significant challenge to communication reliability. In addition, in the current era of rapidly rising copper prices, the high cost of copper hinders OEMs from installing STP shielded cables in vehicles, placing considerable cost pressure on them. Summary of the Invention

[0006] The technical problem to be solved by this utility model is to provide a lightweight and highly flexible STP cable for vehicles.

[0007] This utility model is implemented as follows:

[0008] A highly flexible automotive STP cable comprises, from the inside out: twisted pair cores, a metal shielding layer, a shielding braided layer, and a sheath.

[0009] The shielding braided layer is an aluminum-coated basalt fiber shielding braided layer woven onto the surface of the metal shielding layer.

[0010] Each of the aforementioned wire cores consists of a tin-plated copper conductor and an insulating layer surrounding it;

[0011] The protective sleeve is made of TPU material.

[0012] Furthermore, the aluminum-coated basalt fiber shielding braided layer is made by uniformly attaching 24 spindles of 10 single-filament aluminum-coated basalt fiber conductors with a diameter of 0.23μm to the surface of the metal shielding layer.

[0013] Furthermore, each of the aforementioned wire cores consists of 7 tinned copper conductors with a maximum single filament diameter of 0.16 mm and a foamed PP insulation layer, with an outer diameter of 1.3 to 2.6 mm.

[0014] The advantages of this utility model are:

[0015] This utility model provides a highly flexible automotive STP cable structure that solves the problem of shielding layer breakage in traditional automotive STP cables under high-intensity bending, cyclic bending, and compound torsion conditions. It overcomes the high cost and heavy copper usage of traditional automotive STP shielded cables; avoids the difficulties in bending and laying traditional automotive STP shielded cables; and achieves the following advantages:

[0016] 1. Lighter cable

[0017] Traditional automotive STP shielded cables use a metal tape + tinned copper braided shielding structure to increase shielding effectiveness. The density of a single 0.10TD tinned copper wire is 8.89 g / cm³, while the density of AluCoat aluminum-coated basalt fiber shielding is 2.7 g / cm³. At the same braiding density, this invention uses an AluCoat aluminum-coated basalt fiber shielding structure to achieve the same shielding effect as tinned copper shielding, while reducing copper weight by 80%, making the cable lighter and aligning with the lightweight development path of new energy vehicles.

[0018] 2. Reduce costs

[0019] The high-flexibility STP shielded cable structure of this utility model adopts AluCoat aluminum-coated basalt fiber shielding, which reduces the cost by 87.5%, thereby achieving a more competitive cost advantage.

[0020] 3. Improved the structural stability of the cable

[0021] This utility model, AluCoat aluminum-coated basalt fiber shielding, offers higher tensile strength compared to tin-plated copper braided wire, increasing the overall tensile strength of the cable. Simultaneously, the use of a TPU sheath protects the cable from physical damage and chemical corrosion, enhancing its stability and reliability. It meets the demands of more demanding application scenarios and solves problems such as small bending radii and difficulty in laying cables in confined spaces like vehicle interiors, thus improving the product's application versatility.

[0022] In summary, the high-flexibility automotive STP shielded cable structure of this utility model replaces the original tin-plated copper braided structure with AluCoat aluminum-coated basalt fiber shielding, and is combined with metal shielding layers and extruded TPU sheaths to improve signal transmission quality and application reliability. Attached Figure Description

[0023] The present invention will now be further described with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a schematic diagram of the cross-section of the STP cable of this utility model.

[0025] Figure 2 This is a structural diagram of the braided shielding layer of a traditional STP cable.

[0026] Figure 3 This is a structural diagram of the AluCoat aluminum-coated basalt fiber braided shielding layer of this utility model.

[0027] Reference numerals: 1. Core; 11. Conductor; 12. Insulation layer; 2. Aluminum foil shielding layer; 3. Shielding braided layer; 4. Sheath. Detailed Implementation

[0028] like Figure 1 As shown, this embodiment provides a highly flexible automotive STP cable, which includes, from the inside out: a twisted pair core 1, an aluminum foil shielding layer 2, a shielding braided layer 3, and a sheath 4.

[0029] Each core 1 consists of 7 tinned copper conductors 11 with a maximum single wire diameter of 0.16 mm and a foamed PP insulation layer 12, with an outer diameter of 1.3 to 2.6 mm.

[0030] The shielding braided layer 3 is an Alu Coat aluminum-coated basalt fiber shielding braided layer 3 woven onto the surface of the aluminum foil shielding layer 2. It uses 24 spindles of 10 single filaments of Alu Coat aluminum-coated basalt fiber conductors 11 with a diameter of 0.23μm to be uniformly attached to the surface of the aluminum foil shielding layer 2.

[0031] Sheath 4 is made of TPU material.

[0032] Traditional automotive STP shielded cables use a metal tape + tinned copper braided shielding structure (such as...). Figure 2 (As shown). This is used to increase shielding effectiveness. The density of a single 0.10TD tin-plated copper wire is 8.89 g / cm³, while the density of AluCoat aluminum-coated basalt fiber shielding is 2.7 g / cm³, under the same weaving density; this utility model uses an AluCoat aluminum-coated basalt fiber shielding structure (such as...). Figure 3 As shown, it achieves the same shielding effect as tin-plated copper shielding, but reduces copper weight by 80%, making the wire lighter and conforming to the lightweight development path of new energy vehicles.

[0033] This invention proposes a highly flexible automotive STP cable structure, replacing the original tinned copper braided wire with ALucoat aluminum-coated basalt fiber material to increase the overall tensile strength of the cable. Simultaneously, a TPU sheath is employed to protect the cable from physical damage and chemical corrosion, increasing its stability and reliability. Combined with a metal shielding layer and extruded TPU sheath, these technologies improve signal transmission quality and application reliability. It also features high tensile strength.

[0034] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A high-flexibility automotive STP cable, characterized by: From inside to outside, it includes twisted core, metal shielding layer, shielding braid layer and sheath; The shielding braid layer is an aluminum-coated basalt fiber shielding braid layer which is braided on the surface of the metal shielding layer; Each of the core is composed of a tinned copper conductor and an insulating layer wrapped outside the conductor; The sheath is made of TPU material.

2. A high flexible STP cable for automotive use as claimed in claim 1, wherein: The aluminum-coated basalt fiber shielding braid layer adopts 24 spindles of 10 single-filament aluminum-coated basalt fiber conductors with a diameter of 0.23μm which are uniformly attached to the surface of the metal shielding layer.

3. The highly flexible automotive STP cable as described in claim 1, characterized in that: Each of the core is composed of 7 single-filament tinned copper conductors with a maximum diameter of 0.16mm and a foamed PP insulating layer, and the outer diameter of the core is 1.3-2.6mm.

Images