Tensile cable core structure

Abstract

The utility model discloses a kind of tensile cable core structures, which comprises: heart frame and a plurality of conductors, a plurality of conductors extend along the length direction of center frame, and each conductor is arranged on the adjacent side of center frame, so that the center frame is axially limited and strengthened for each conductor, to strengthen the tensile performance of each conductor;Center frame includes main stem, a plurality of first branches and a plurality of second branches;Main stem is arranged along the length direction of cable isosceles extension;Main stem is arranged with a plurality of first fractal nodes at intervals with a preset distance, and a plurality of first branches are arranged in a plurality of branch nodes respectively;A plurality of second branches are arranged at the end of a plurality of first branches respectively, so as to form a multi-level fractal support frame;A plurality of conductors are arranged between adjacent two first branches and adjacent two second branches, thereby, while supporting a plurality of conductors, the tensile capacity of the cable core structure is effectively strengthened;Each branch node is provided with four first branches, and the included angle of adjacent first branches based on the same branch node is 90°;The end of each first branch is provided with two second branches, and the included angle of adjacent second branches is 90°.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a tensile-resistant cable core structure. Background Technology

[0002] Cables are carriers of electrical energy or signals, with a conductor at their core and a multi-layered protective structure. Their basic structure includes a conductor (metallic materials such as copper / aluminum), an insulation layer (polymers such as PVC / XLPE), a shielding layer (metal braided tape or foil), and an outer sheath (flame-retardant and weather-resistant material). The core functions of cables mainly include: power transmission (transmitting electrical energy, such as household cables and high-voltage transmission lines); signal transmission (transmitting data / optical signals, such as network cables, optical fibers, and coaxial cables); and composite functions (simultaneously transmitting power and signals, such as robot drag chain cables). Taking power cables as an example, their layered structure from the inside out includes a conductor, a shielding layer, an insulation layer, an optional insulating shielding layer, a metallic shielding layer, a filler layer, an inner sheath, an optional armor layer, and an outer sheath, thus forming the basic structure of a power cable.

[0003] However, the tensile strength of the existing cable core is insufficient. When the outer sheath is damaged or broken, the conductor lacks a secondary tensile structure, which makes the conductor easy to break. Utility Model Content

[0004] Therefore, it is necessary to provide a tensile-resistant cable core structure to address the technical problem of insufficient tensile strength of existing cable cores.

[0005] A tensile cable core structure includes a central skeleton and several conductors. The conductors extend along the length of the central skeleton and each conductor is disposed adjacent to the central skeleton, thereby enabling the central skeleton to axially limit and reinforce each conductor, thus enhancing the tensile performance of each conductor.

[0006] The central frame includes a main trunk, several primary branches, and several secondary branches. The main trunk extends at equal lengths along the length of the cable. The main trunk is spaced at preset intervals to form several first fractal nodes, and the primary branches are respectively set at several branch nodes. The secondary branches are respectively set at the ends of the primary branches, thus forming a multi-level fractal support frame. Several conductors are respectively erected between two adjacent primary branches and two adjacent secondary branches. Thus, the central frame effectively strengthens the tensile strength of the cable core structure while supporting several conductors.

[0007] Each branch node has four primary branches, and the angle between adjacent primary branches is set to 90° based on the same branch node; each primary branch has two secondary branches at its end, and the angle between adjacent secondary branches is set to 90°.

[0008] In one embodiment, the spacing between adjacent first fractal nodes is set to 6-10 times the trunk diameter.

[0009] In one embodiment, the diameter of each of the above-mentioned first-level branches is set to 0.6-1 times the diameter of the main trunk.

[0010] In one embodiment, the length of each of the first-level branches is set to be 2-3 times its diameter.

[0011] In one embodiment, the diameter of each of the secondary branches is set to 0.4-0.5 times the diameter of the main trunk.

[0012] In one embodiment, the length of each of the above-mentioned secondary branches is set to be 2-3 times its diameter.

[0013] In one embodiment, the first fractal node is provided with a spherical reinforcement to strengthen the connection between the primary branch and the main trunk.

[0014] In one embodiment, each of the above-mentioned secondary branches and the corresponding primary branches are provided with a second fractal node.

[0015] In one embodiment, the second fractal node is provided with a spherical reinforcement to strengthen the connection between the secondary branch and the primary branch.

[0016] In one embodiment, the surface of the spherical reinforcement portion is provided with a textured groove.

[0017] In one embodiment, each of the above-mentioned conductors is formed by winding a predetermined number of copper wires in a predetermined winding direction to form a conductor structure of a predetermined diameter.

[0018] In one embodiment, the conductor is a bundle of 72 copper wires with a diameter of 0.2 mm wound counterclockwise.

[0019] The aforementioned tensile core structure distributes the axial pressure acting on the cable step by step to the first fractal node, primary branch, secondary branch, conductor support point, and finally to each conductor through a multi-level fractal central skeleton structure. Specifically, the conductors mounted on adjacent branches can form a spatial truss structure, thereby improving the tensile strength of the conductors; setting the branch angle to 90° can provide lateral constraints to the conductors to suppress radial instability; based on the multi-level support of several conductors by the central skeleton, the connection stability between several conductors and the central skeleton can be effectively strengthened, effectively avoiding relative slippage between the conductors and the central skeleton during bending, thereby reducing the wear of the insulation layer filling the space between the central skeleton and the conductors. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the tensile cable core structure in one embodiment; Figure 2 This is a schematic diagram of the tensile cable core structure in one embodiment. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0026] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0027] Please see Figure 1 , 2This utility model discloses a tensile cable core structure 1, which includes a central skeleton 10 and several conductors 20. The conductors 20 extend along the length of the central skeleton 10, and each conductor 20 is abutted against the adjacent side of the central skeleton 10, thereby allowing the central skeleton 10 to axially limit and reinforce each conductor 20, thus enhancing the tensile strength of each conductor 20. Specifically, the central skeleton 10 includes a main trunk 11, several primary branches 12, and several secondary branches 13. The main trunk 11 extends at equal lengths along the length of the cable. The main trunk 11 is set with several first fractal nodes 14 at predetermined intervals, and the several primary branches 12 are respectively set at the several first fractal nodes 14. The several secondary branches 13 are respectively set at the ends of the several primary branches 12, thus forming a multi-level fractal support skeleton. The several conductors 20 are respectively erected between two adjacent primary branches 12 and two adjacent secondary branches 13. Thus, the central skeleton 10 effectively enhances the tensile strength of the cable core structure while supporting the several conductors 20. More specifically, each first fractal node 14 is provided with four primary branches 12, and the included angle between adjacent primary branches 12 is set to 90° based on the same first fractal node 14; each primary branch 12 has two secondary branches 13 at its end, and the included angle between adjacent secondary branches 13 is set to 90°. In summary, the tensile cable core structure 1, by setting a multi-level fractal central skeleton 10 structure, distributes the axial pressure acting on the cable step by step to the first fractal node 14, primary branches 12, secondary branches 13, conductor 20 support points, and finally disperses it to each conductor 20. Specifically, the conductor 20 can form a spatial truss structure by being mounted on adjacent branches, thereby improving the tensile strength of the conductor 20; setting the branch angle to 90° can provide lateral constraints to the conductor 20 to suppress radial instability of the conductor 20; based on the multi-level support of the central frame 10 for several conductors 20, the connection stability between several conductors 20 and the central frame 10 can be effectively strengthened, effectively avoiding relative sliding between the conductor 20 and the central frame 10 when bending, thereby reducing the wear of the insulation layer 30 filled between the central frame 10 and the conductor 20.

[0028] Furthermore, in one embodiment, the spacing between adjacent first fractal nodes 14 is set to 6-10 times the diameter of the trunk 11.

[0029] Furthermore, in one embodiment, the diameter of each primary branch 12 is set to 0.6-1 times the diameter of the main trunk 11; in another embodiment, the length of each primary branch 12 is set to 2-3 times its diameter.

[0030] Furthermore, in one embodiment, the diameter of each secondary branch 13 is set to 0.4-0.5 times the diameter of the main trunk 11; in another embodiment, the length of each secondary branch 13 is set to 2-3 times its diameter.

[0031] Furthermore, the first fractal node 14 is provided with a spherical reinforcement (not shown) to strengthen the connection between the primary branch 12 and the main trunk 11.

[0032] Furthermore, each secondary branch 13 and its corresponding primary branch 12 are provided with a second fractal node 15. Similarly, the second fractal node 15 is provided with a spherical reinforcement part to strengthen the connection strength between the secondary branch 13 and the primary branch 12.

[0033] Furthermore, in one embodiment, the surface of the spherical reinforcement is provided with a textured groove (not shown) to improve the surface roughness of the spherical reinforcement. When the conductor 20 abuts against the adjacent side of the primary branch 12 and the secondary branch 13, the side surface of the conductor 20 abuts against the spherical reinforcement, thereby enhancing the axial anti-slip performance between the conductor 20 and the central support.

[0034] Furthermore, each conductor 20 is formed by winding a predetermined number of copper wires in a predetermined winding direction to create a conductor 20 structure of a predetermined diameter. When the conductor 20 abuts against the corresponding spherical reinforcing part, the copper wires can be fitted into the textured grooves on the surface of the spherical reinforcing part, thereby further enhancing the axial stability of the conductor 20. Specifically, in one embodiment, the conductor 20 is formed by bundling 72 copper wires with a diameter of 0.2 mm in a counterclockwise direction.

[0035] In summary, the tensile core structure disclosed in this invention distributes the axial pressure acting on the cable step by step to the first fractal node, primary branch, secondary branch, conductor support point, and finally to each conductor by setting a multi-level fractal central skeleton structure. Specifically, the conductors mounted on adjacent branches can form a spatial truss structure, thereby improving the tensile strength of the conductors; setting the branch angle to 90° can provide lateral constraints to the conductors to suppress radial instability; based on the multi-level support of several conductors by the central skeleton, the connection stability between several conductors and the central skeleton can be effectively strengthened, effectively avoiding relative slippage between the conductors and the central skeleton during bending, thereby reducing the wear of the insulation layer filling the space between the central skeleton and the conductors.

[0036] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A tensile-resistant cable core structure, characterized in that, include: A central frame and several conductors are provided. The conductors extend along the length of the central frame and each conductor is abutted against the adjacent side of the central frame, thereby allowing the central frame to axially limit and reinforce each conductor, thus enhancing the tensile strength of each conductor. The central frame includes a main trunk, several primary branches, and several secondary branches. The main trunk extends at equal lengths along the length of the cable. The main trunk is spaced at preset intervals to form several first fractal nodes, and the primary branches are respectively set at several branch nodes. The secondary branches are respectively set at the ends of the primary branches, thus forming a multi-level fractal support frame. Several conductors are respectively erected between two adjacent primary branches and two adjacent secondary branches. Thus, the central frame effectively strengthens the tensile strength of the cable core structure while supporting the conductors. Each branch node has four primary branches, and the angle between adjacent primary branches is set to 90° based on the same branch node; each primary branch has two secondary branches at its end, and the angle between adjacent secondary branches is set to 90°.

2. The tensile cable core structure according to claim 1, characterized in that, The spacing between adjacent first fractal nodes is set to 6-10 times the trunk diameter.

3. The tensile cable core structure according to claim 2, characterized in that, The diameter of each first-level branch is set to 0.6-1 times the diameter of the main trunk.

4. The tensile cable core structure according to claim 3, characterized in that, The length of each first-level branch is set to 2-3 times its diameter.

5. The tensile cable core structure according to claim 4, characterized in that, The diameter of each secondary branch is set to 0.4-0.5 times the diameter of the main trunk.

6. The tensile cable core structure according to claim 5, characterized in that, The length of each secondary branch is set to 2-3 times its diameter.

7. The tensile cable core structure according to claim 6, characterized in that, The first fractal node is equipped with a spherical reinforcement to strengthen the connection between the primary branch and the main trunk.

8. The tensile cable core structure according to claim 7, characterized in that, Each second-level branch and its corresponding first-level branch are assigned a second fractal node.

9. The tensile cable core structure according to claim 8, characterized in that, The second fractal node is equipped with a spherical reinforcement to strengthen the connection between the secondary branch and the primary branch.

10. The tensile cable core structure according to claim 9, characterized in that, The surface of the spherical reinforcement part is provided with a textured groove.

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