Low-temperature-resistant high-flexible industrial network cable

Abstract

The utility model discloses a kind of low-temperature-resistant high-soft industrial network lines, including multiple wire pairs, the wire pair is made of two conductors and is twisted, the outside of each wire pair is covered with shielding layer, multiple wire pairs are covered by braiding layer, the outside of braiding layer is covered with outer sheath;The conductor is composed of conductor and insulating layer, the outside of the conductor is covered with insulating layer, the insulating layer is made of low-temperature-resistant thermoplastic elastomer.The utility model, using low-temperature-resistant insulating material and sheath material, can work normally under the low-temperature environment of-40 ℃, each material can still maintain good flexibility and physical properties under low temperature, effectively avoid the problem such as material embrittlement, fracture caused by low temperature.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically a low-temperature resistant and highly flexible industrial network cable. Background Technology

[0002] In industrial environments, especially in low-temperature applications such as cold storage and outdoor industrial facilities in cold regions, network cables need to have good low-temperature resistance and fatigue resistance.

[0003] Existing Cat.6 network cables exhibit a significant decrease in flexibility and brittleness at low temperatures. Under frequent bending and stretching, they are prone to insulation cracking and conductor breakage, leading to decreased network transmission performance or even interruption, thus affecting the stability of communication connections and data transmission between industrial devices. Therefore, we propose a low-temperature resistant, highly flexible industrial network cable. Utility Model Content

[0004] The purpose of this invention is to provide a low-temperature resistant and highly flexible industrial network cable to solve the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-temperature resistant and highly flexible industrial network cable, comprising multiple wire pairs, wherein each wire pair is formed by twisting two conductors together, each wire pair is covered with a shielding layer, and the multiple wire pairs are covered by a braided layer, the braided layer being covered with an outer sheath; the conductor is composed of a conductor and an insulating layer, the conductor being covered with an insulating layer, and the insulating layer is made of a low-temperature resistant thermoplastic elastomer.

[0006] Preferably, the conductor is made of multiple strands of fine copper wire twisted together, and the diameter of the fine copper wire is 0.08-0.12 mm.

[0007] Preferably, the shielding layer is made of aluminum foil Mylar, and the thickness of the aluminum foil Mylar is 0.02-0.05mm.

[0008] Preferably, the braided layer is made of tin-plated copper wire, the density of the tin-plated copper wire braid is not less than 85%, and the diameter of the tin-plated copper wire is 0.1-0.15mm.

[0009] Preferably, the outer sheath is a modified polyurethane sheath with a thickness of 1.0-1.5 mm.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. Low temperature resistance: The insulation and sheath materials are made of low temperature resistant materials, which can work normally in a low temperature environment of -40℃. Each material can still maintain good flexibility and physical properties at low temperature, effectively avoiding problems such as material brittleness and breakage caused by low temperature.

[0012] 2. Fatigue Resistance: The conductor uses multi-strand fine copper wire bundles, combined with low-temperature resistant insulation and sheath materials, giving the cable excellent flexibility and bending resistance. After repeated bending tests in a -40℃ environment, including: 1. 10 million bending cycles with a bending radius of + / -90° (10XOD); 2. 10 million torsion cycles with a bending radius of + / -180° (10XOD); 3. 10 million drag chain cycles with a bending radius of 10XOD, the electrical performance of the cable changes by no more than ±5%, meeting the requirements of frequent bending and stretching in industrial environments.

[0013] 3. Shielding performance: The composite shielding structure (aluminum foil and braided layer) can effectively shield external electromagnetic interference, ensure stable transmission of network signals, and improve the anti-interference ability and communication quality of the cable. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] In the diagram: 1. Conductor; 2. Insulation layer; 3. Shielding layer; 4. Braided layer; 5. Outer sheath. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0018] Please see Figure 1In this embodiment of the present invention, a low-temperature resistant and highly flexible industrial network cable includes multiple wire pairs. Each wire pair is formed by twisting two conductors together. Each wire pair is covered with a shielding layer 3 on the outside. The multiple wire pairs are covered by a braided layer 4, and the braided layer 4 is covered with an outer sheath 5. The conductor is composed of a conductor 1 and an insulation layer 2. The conductor 1 is covered with an insulation layer 2. The insulation layer 2 is made of a low-temperature resistant thermoplastic elastomer, such as styrene-ethylene-butene-styrene block copolymer (SEBS). This material has good low-temperature flexibility and can remain flexible even at -40°C. Its elongation at break is not less than 300%, and it has excellent electrical insulation properties with an insulation resistance of not less than 10^12 Ω·cm.

[0019] The conductor 1 is made of multiple strands of fine copper wires twisted together. The diameter of the fine copper wires is 0.08-0.12mm. The multiple strands of fine copper wires increase the flexibility and bending resistance of the conductor.

[0020] The shielding layer 3 is made of aluminum foil Mylar with a thickness of 0.02-0.05mm, which can effectively shield electromagnetic interference.

[0021] The braided layer 4 is made of tin-plated copper wire with a braiding density of not less than 85% and a diameter of 0.1-0.15mm. The braiding structure further enhances the shielding effect and improves the cable's tensile and bending resistance.

[0022] The outer sheath 5 is made of modified polyurethane and has a thickness of 1.0-1.5 mm. At -40℃, its elongation at break is not less than 300%, and its hardness variation does not exceed ±5 Shore A. The 1.0-1.5 mm thickness of the outer sheath provides reliable mechanical protection and waterproof / dustproof functions for the cable.

[0023] Copper rods with a purity of no less than 99.9% are selected and drawn into fine copper wires with a diameter of 0.1-0.2 mm using a wire drawing process. Multiple strands of these fine copper wires are then bundled together to form a conductor. Next, a low-temperature resistant SEBS material is extruded and coated onto the conductor surface using an extrusion process to form an insulation layer. The thickness of the insulation layer is controlled according to Cat.6 standards, typically 0.2-0.3 mm. Two insulated conductors are then twisted together with a specific twist pitch to form a wire pair. The twist pitch is adjusted according to Cat.6 standards to ensure that electrical properties such as crosstalk between wire pairs meet the standards.

[0024] The working principle of this invention is as follows: A copper rod with a purity of not less than 99.9% is selected and drawn into fine copper wires with a diameter of 0.1-0.2 mm using a wire drawing process. Multiple strands of these fine copper wires are then bundled together to form a conductor. Next, a low-temperature resistant SEBS material is extruded and coated onto the conductor surface using an extrusion process to form an insulation layer. The thickness of the insulation layer is controlled according to Cat.6 standards, typically 0.2-0.3 mm. Two insulated conductors are then twisted together with a specific twist pitch to form a wire pair. The twist pitch is adjusted according to Cat.6 standards to ensure that electrical properties such as crosstalk between the wire pairs meet the standards.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A low-temperature resistant, high-flexibility industrial network cable, comprising multiple wire pairs, characterized in that: The wire pair is formed by twisting two wires together. Each wire pair is covered with a shielding layer (3). Multiple wire pairs are covered by a braided layer (4). The braided layer (4) is covered with an outer sheath (5). The wire is composed of a conductor (1) and an insulating layer (2). The conductor (1) is covered with an insulating layer (2). The insulating layer (2) is made of a low-temperature resistant thermoplastic elastomer.

2. The low-temperature resistant, high-flexibility industrial network cable according to claim 1, characterized in that: The conductor (1) is made of multiple strands of fine copper wires twisted together, and the diameter of the fine copper wires is 0.08-0.12 mm.

3. The low-temperature resistant, high-flexibility industrial network cable according to claim 1, characterized in that: The shielding layer (3) is made of aluminum foil Mylar, and the thickness of the aluminum foil Mylar is 0.02-0.05mm.

4. The low-temperature resistant, high-flexibility industrial network cable according to claim 1, characterized in that: The braided layer (4) is woven with tin-plated copper wire, the density of the tin-plated copper wire is not less than 85%, and the diameter of the tin-plated copper wire is 0.1-0.15mm.

5. The low-temperature resistant, high-flexibility industrial network cable according to claim 1, characterized in that: The outer sheath (5) is made of modified polyurethane and has a thickness of 1.0-1.5 mm.

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