High-strength cable

Abstract

The utility model discloses a high-strength cable, and relates to the technical field of cables. The high-strength cable comprises an outer sheath arranged on the outermost layer, a reinforced braid layer is arranged in the outer sheath, a first shielding layer is arranged in the reinforced braid layer, a first insulating layer is arranged in the first shielding layer, a filling layer is arranged in the first insulating layer, a core frame is arranged in the filling layer, and the core frame is arranged in the core frame. A plurality of groups of conductor main bodies are embedded in the core frame, and the outer sheath is made of a thermoplastic elastomer material. According to the high-strength cable, the brittle fracture risk of the cable in a low-temperature environment is effectively reduced, stable supporting and positioning are provided for the conductor main body through the overall structural design of the cable, particularly the use of the core frame, meanwhile, good flexibility is kept, the mechanical strength of the cable is remarkably improved through the use of the braid layer, and the service life of the cable is prolonged. The external force action in a low-temperature environment can be resisted.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a high-strength cable. Background Technology

[0002] As an important carrier of power transmission, the stability and reliability of cables are directly related to the operating efficiency and safety of power systems. In particular, infrastructure construction, oil extraction, wind power generation and other fields in cold regions such as Northeast and Northwest China require cables that can withstand low-temperature environments to ensure the normal operation of the system.

[0003] In existing technologies, cables tend to become brittle and hard in low-temperature environments, making them prone to breakage under external forces. This not only affects the normal use of the cable but may also pose safety hazards. Low temperatures also weaken the overall mechanical strength of the cable, making it more susceptible to damage from the external environment, such as wear and tear, thus reducing its durability and stability. In low-temperature environments, the flexibility of the cable material decreases significantly, making installation, bending, or stretching difficult and potentially damaging the cable structure, affecting its reliability and service life. To address the shortcomings of existing technologies, this invention provides a high-strength cable to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a high-strength cable. The outer sheath is made of thermoplastic elastomer material, which maintains a certain degree of elasticity and toughness at low temperatures, effectively reducing the risk of cable brittleness in low-temperature environments. The overall structural design of the cable, especially the use of the core frame, provides stable support and positioning for the conductor body while maintaining good flexibility. The use of the braided layer significantly improves the mechanical strength of the cable, enabling it to resist external forces in low-temperature environments. Therefore, it ensures convenient cable installation without damaging the cable structure, and improves the reliability and service life of the cable.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a high-strength cable, including an outermost outer sheath, an inner reinforcing braided layer, an inner first shielding layer, and an inner first insulating layer.

[0006] The first insulating layer has a filling layer inside, the filling layer has a core frame inside, and multiple sets of conductor bodies are embedded inside the core frame;

[0007] Each of the multiple sets of conductor bodies has a second insulating layer on its outer side, and a second shielding layer is provided outside the second insulating layer;

[0008] The outer sheath is made of thermoplastic elastomer material.

[0009] Preferably, the filling layer comprises PP filling rope and aramid filling rope, which are intertwined and twisted to form the filling layer.

[0010] Preferably, the first and second shielding layers are made of copper wire and aramid braid.

[0011] Preferably, the first insulating layer and the second insulating layer are made of cross-linked polyethylene material.

[0012] Preferably, the core frame includes a central column and a flexible frame disposed outside the central column, and the conductor body is snapped into the gap formed by the central column and the flexible frame.

[0013] Preferably, the conductor body is an oxygen-free fifth-type annealed soft-structure copper conductor.

[0014] This utility model discloses a high-strength cable, which has the following beneficial effects:

[0015] This high-strength cable features an outer sheath made of thermoplastic elastomer material. This material retains a certain degree of elasticity and toughness at low temperatures, effectively reducing the risk of cable brittleness in low-temperature environments. The overall structural design of the cable, especially the use of the core frame, provides stable support and positioning for the conductor body while maintaining good flexibility. The use of the braided layer significantly improves the mechanical strength of the cable, enabling it to resist external forces in low-temperature environments. Therefore, it ensures convenient cable installation without damaging the cable structure, and enhances the reliability and service life of the cable. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] In the diagram: 1. Conductor body; 2. Second insulation layer; 3. Second shielding layer; 4. Outer sheath; 5. Reinforcing braided layer; 6. First shielding layer; 7. First insulation layer; 8. Filling layer; 81. PP filler rope; 82. Aramid filler rope; 9. Core frame; 91. Central column; 92. Flexible frame. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] This application provides a high-strength cable that solves the problem that in the prior art, cables become brittle and hard in low-temperature environments, making them prone to breakage under external forces. This not only affects the normal use of the cable but may also cause safety hazards. Low temperatures also weaken the overall mechanical strength of the cable, making it more susceptible to damage from the external environment, reducing the cable's durability and stability. In low-temperature environments, the flexibility of the cable material decreases significantly, making the cable difficult to install, bend, or stretch, and may even damage the cable structure, affecting the cable's reliability and service life.

[0021] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0022] This utility model discloses a high-strength cable, according to the attached... Figure 1 As shown, the cable includes an outermost sheath 4, an inner reinforcing braided layer 5, an inner first shielding layer 6, and an inner first insulating layer 7. The outer sheath 4, as the outermost layer of the cable, is made of thermoplastic elastomer material. This material selection gives the outer sheath 4 high strength, wear resistance, corrosion resistance, and excellent elasticity, enabling it to withstand mechanical stress in extreme environments. This provides the cable with excellent low-temperature resistance, environmental resistance, and mechanical properties under harsh conditions such as extreme cold and snow; effectively protecting the internal structure of the cable from damage by the external environment.

[0023] The first insulation layer 7 has a filling layer 8 inside, and the filling layer 8 has a core frame 9 inside. Multiple conductor bodies 1 are embedded inside the core frame 9. The core frame 9 includes a central post 91 and a flexible frame 92 set outside the central post 91. The conductor body 1 is snapped into the gap formed by the central post 91 and the flexible frame 92. This structural design enables the conductor body 1 to be stably supported and positioned inside the cable, effectively preventing the conductor body 1 from shifting and loosening during transmission.

[0024] Each of the multiple conductor bodies 1 has a second insulation layer 2 on its outer side, and a second shielding layer 3 is provided outside the second insulation layer 2. The conductor body 1 uses oxygen-free fifth-type annealed soft-structure copper conductor. This copper conductor has excellent conductivity and transmission efficiency, and can maintain stable transmission performance in low-temperature environments. At the same time, its soft-structure characteristics give the conductor body 1 better flexibility and durability when bent and stretched, extending the service life of the cable.

[0025] The filler layer 8 includes PP filler rope 81 and aramid filler rope 82, which are twisted and formed by intertwining. PP filler rope 81 provides good filling effect and certain mechanical strength, while aramid filler rope 82 further enhances the tensile strength and wear resistance of the cable. The combination of the two makes the filler layer 8 meet the structural requirements and improve the overall performance of the cable, making the cable lightweight, flexible and excellent low temperature resistance.

[0026] The first shielding layer 6 and the second shielding layer 3 are made of copper wire and aramid braid. The copper wire provides good conductivity and can effectively shield external electromagnetic interference, while the addition of aramid enhances the mechanical strength and wear resistance of the shielding layer, so that the cable can maintain stable transmission performance in complex environments and ensure that the cable shielding effect, flexibility and tensile strength meet the design requirements.

[0027] The first insulation layer 7 and the second insulation layer 2 are made of cross-linked polyethylene material. Cross-linked polyethylene material has excellent insulation performance, heat resistance and mechanical strength, which can effectively isolate the conductor body 1 from the external environment and prevent current leakage and short circuit. The material also has excellent low temperature resistance and will not become brittle or crack due to low temperature. It maintains voltage resistance, wear resistance and corrosion resistance in low temperature environment to ensure the safety and reliability of the cable during long-term use.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high strength cable comprising an outer sheath (4) arranged as an outermost layer, characterized in that, The outer sheath (4) has an internal reinforcing braided layer (5), the internal reinforcing braided layer (5) has a first shielding layer (6), and the internal first shielding layer (6) has a first insulating layer (7). The first insulating layer (7) has a filling layer (8) inside, the filling layer (8) has a core frame (9) inside, and multiple sets of conductor bodies (1) are embedded inside the core frame (9). The outer sides of the multiple sets of conductor bodies (1) are respectively provided with a second insulating layer (2), and the outer side of the second insulating layer (2) is provided with a second shielding layer (3); The outer sheath (4) is made of thermoplastic elastomer material.

2. A high strength cable according to claim 1, characterized in that The filling layer (8) includes PP filling rope (81) and aramid filling rope (82), which are twisted and entangled together.

3. A high strength cable according to claim 1, characterized in that The first shielding layer (6) and the second shielding layer (3) are made of copper wire and aramid braiding.

4. A high strength cable according to claim 3, characterized in that The first insulating layer (7) and the second insulating layer (2) are made of cross-linked polyethylene material.

5. A high strength cable according to claim 1, wherein, The core frame (9) includes a central column (91) and a flexible frame (92) disposed outside the central column (91), and the conductor body (1) is snapped into the gap formed by the central column (91) and the flexible frame (92).

6. A high strength electrical cable according to claim 5, wherein, The conductor body (1) is an oxygen-free fifth-type annealed soft-structure copper conductor.

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