A composite cable

Abstract

This utility model relates to the technical field of cables and discloses a composite cable, including a sheath. The sheath has a flat cross-section and multiple functional cores arranged parallel to each other along its width. Each functional core includes at least one power core and one signal core. The sheath also contains tensile elements made of high-strength fiber material. This composite cable, by incorporating tensile filler ropes made of aramid fiber bundles, effectively bears most of the tensile force borne by the cable during movement, protecting the internal cores from tensile stress.

Description

Technical Field

[0001] This utility model relates to the technical field of cables, and more particularly to a composite cable. Background Technology

[0002] With the continuous development of science and technology and society, composite cables are gradually emerging in the market. This new type of cable cleverly combines traditional communication cables and power transmission cables into one, forming an efficient and convenient integrated solution for power and data transmission by integrating the transmission cable core and the communication cable core within the same cable. Although most composite cables on the market currently simply place these two different types of cable cores together in a common rubber sheath, this design has simplified the complexity of construction and installation to a certain extent, reduced the space requirements for line laying, and helped improve overall installation efficiency and reduce costs.

[0003] A search revealed an existing patent (publication number: CN222365417U) that discloses a composite cable. The composite cable includes multiple vertically spaced support plates, each with a central hole and multiple horizontally extending through holes. An air inlet is inserted through the central hole, and communication and conductive cables are respectively inserted through the multiple through holes. A support frame is vertically fixed to the outer end face of the support plate, and an exhaust pipe is horizontally inserted through the support frame. This invention overcomes the problem that existing composite cables lack a heat dissipation structure, causing heat generated by the cable core to accumulate within the composite cable and hindering rapid heat dissipation, thus affecting the cable's heat dissipation performance.

[0004] In the existing technology, round cables are prone to twisting, which makes them unsuitable for environments that require frequent bending and movement, as twisting will affect the normal service life and performance of the cable. In addition, ordinary flat cables have low tensile strength and are prone to damage or breakage when subjected to large tensile forces, especially when used for a long time or when bearing heavy weights, their stability and durability are poor. Utility Model Content

[0005] In view of the problem that the existing cables have low tensile strength and are prone to damage or breakage when subjected to large tensile forces, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a composite cable, the purpose of which is to: by setting a tensile filling rope made of aramid fiber bundles, the aramid fibers have an extremely high strength-to-weight ratio, which can effectively bear most of the tensile force borne by the cable during movement, and protect the internal core from the influence of tensile force.

[0007] To solve the above technical problems, this utility model provides the following technical solution: a composite cable, including a sheath, the cross-section of which is a flat structure, and multiple functional cores are arranged parallel to each other along the width direction inside the sheath, the functional cores including at least one power core and one signal core; The sheath also contains tensile elements made of high-strength fiber material.

[0008] In a preferred embodiment of the composite cable of this utility model, the functional core further includes an optical cable, and the power core, signal core and optical cable are arranged in a straight line.

[0009] In a preferred embodiment of the composite cable of this utility model, the tensile element is a tensile filler rope disposed in the gap between the functional cores, and the number of tensile filler ropes is at least one.

[0010] In a preferred embodiment of the composite cable of this utility model, the high-strength fiber material is aramid fiber or glass fiber.

[0011] In a preferred embodiment of the composite cable of this utility model, a shielding layer is provided on the outer periphery of the signal core.

[0012] In a preferred embodiment of the composite cable described in this utility model, the shielding layer is an aluminum-plastic composite tape overlapping and wrapping structure or a braided wire mesh shielding structure.

[0013] In a preferred embodiment of the composite cable of this utility model, at least one anti-torsion rib is provided on the inner wall of the sheath along its length.

[0014] In a preferred embodiment of the composite cable of this utility model, there are two anti-torsion ribs, which are respectively located at the center of the wide side of the flat sheath; the material of the sheath is thermoplastic polyurethane elastomer or polyvinyl chloride.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This utility model adopts a flat structure, which arranges the power line, signal line and optical cable in parallel. The structure is compact and thin, making it particularly suitable for installation environments with limited space.

[0016] 2. This utility model uses a tensile filling rope made of aramid fiber bundles. Because aramid fibers have an extremely high strength-to-weight ratio, they can effectively bear most of the tensile force borne by the cable during movement, protecting the internal core from the effects of tensile force.

[0017] 3. In this utility model, the flat structure itself has good anti-torsion characteristics. Combined with the anti-torsion ribs set on the inner wall of the sheath, it further enhances the cable's ability to resist lateral torsion and prevents damage to the core structure.

[0018] 4. In this utility model, the independent shielding layer of the signal control wire core effectively prevents electromagnetic interference from the power wire core; at the same time, the parallel arrangement structure in the "I" shape avoids relative rotational friction between the internal wire cores, reducing internal wear.

[0019] 5. This utility model uses polyurethane as the sheath material, which gives the cable excellent wear resistance, oil resistance and bending fatigue resistance, making it suitable for high-frequency moving applications such as industrial cable chains. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the composite cable of this utility model; Figure 2 This is a schematic diagram of the functional core (planar) structure of the composite cable of this utility model; Figure 3 This is a schematic diagram of the signal core and shielding layer structure of the composite cable of this utility model; Figure 4 This is a schematic diagram of the sheath and anti-torsion reinforcement structure of the composite cable of this utility model; Figure 5 This is a schematic diagram of the overall external structure of the composite cable of this utility model.

[0021] Explanation of reference numerals in the attached figures: 1. Sheath; 11. Anti-torsion rib; 2. Power core; 3. Signal core; 31. Shielding layer; 4. Optical cable; 5. Tensile element. Detailed Implementation

[0022] To make the above-mentioned objectives, 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. Example

[0023] Reference Figures 1-3 This is the first embodiment of the present invention, which provides a composite cable.

[0024] Includes a sheath 1, the cross-section of which is a flat structure, and multiple functional wire cores are arranged parallel to each other along the width direction inside the sheath 1. The functional wire cores include at least one power wire core 2 and one signal wire core 3. The flat structure makes it easier to route and secure cables in narrow spaces, avoiding the rolling and twisting that may occur when round cables are bent, thus improving the convenience and stability of installation. Integrating power transmission and signal transmission into a single cable reduces the number of cables and simplifies the internal structure of the equipment. Compared to stranded structures, parallel-arranged wires have gaps between them, which is more conducive to heat dissipation. The sheath 1 is also equipped with a tensile element 5 made of high-strength fiber material; It is specifically designed to withstand the tensile force that cables bear during laying and use, effectively preventing the functional core from being stretched or even broken due to tension. Separating mechanical stress from electrical or optical functional components ensures long-term reliability of power and signal transmission.

[0025] The functional core also includes an optical cable 4, and the power core 2, signal core 3 and optical cable 4 are arranged in a straight line; The addition of high-speed data communication or sensing capabilities makes the cable suitable for more complex application scenarios; The "I"-shaped arrangement makes the cable structure compact and symmetrical, ensuring the consistency and stability of the cable's performance when bent, and avoiding uneven stress on different cores due to their different positions.

[0026] Tensile element 5 is a tensile filler rope disposed in the gap between the functional wire cores, and the number of tensile filler ropes is at least one; By cleverly utilizing the natural gaps between the conductors to place tensile elements, the overall size of the cable is not increased, thus maintaining the compactness of the structure. The filler rope can act as a "cable filler", making the cable core more rounded, thereby making the outer sheath thickness uniform and improving the overall quality of the cable.

[0027] High-strength fiber materials are aramid fibers or glass fibers; Aramid fibers have extremely high strength and flexibility, and are lightweight; glass fibers have high strength and low cost, ensuring that tensile components can function effectively.

[0028] A shielding layer 31 is provided on the outer periphery of the signal core 3; It effectively prevents the high-intensity electromagnetic field generated by the power conductor from interfering with the transmission of sensitive weak electrical signals, ensuring the accuracy and stability of data transmission.

[0029] Shielding layer 31 is an aluminum-plastic composite tape overlapping and wrapping structure or a woven wire mesh shielding structure; Aluminum-plastic composite tape wrapping provides 100% shielding coverage and excellent high-frequency shielding performance; The woven mesh is flexible and resistant to bending fatigue. Example

[0030] Reference Figures 1-5This is the second embodiment of the present utility model. The difference between this embodiment and the first embodiment is that: at least one anti-torsion rib 11 is provided on the inner wall of the sheath 1 along its length direction. When the cable is subjected to torsion, the anti-torsion ribs can provide greater recovery stiffness, effectively resisting the spiral torsional deformation of the cable and maintaining its flat shape; The anti-torsion ribs separate the internal functional conductors from the inner wall of the outer sheath, forming a linear support channel. This reduces the contact area and friction between the conductors and the outer sheath, significantly reducing internal wear during bending and extending cable life.

[0031] There are two anti-torsion ribs 11, located at the center of the flat structure sheath 1 corresponding to its wide side; the material of the sheath 1 is thermoplastic polyurethane elastomer or polyvinyl chloride. Two anti-torsion ribs are symmetrically set at the center of the wide side to provide the most effective support, ensure that the cable is subjected to symmetrical and balanced forces when bending, prevent stress concentration on one side, and further improve mechanical stability. Thermoplastic polyurethane has excellent abrasion resistance, oil resistance and high elasticity, making it ideal for harsh environments with high-frequency bending and movement. Polyvinyl chloride (PVC) offers good cost-effectiveness, flexibility, and flame retardancy.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A composite cable comprising a sheath (1), characterized in that: The sheath (1) has a flat cross-section and multiple functional wires are arranged parallel to each other along the width direction inside it. The functional wires include at least one power wire (2) and one signal wire (3). The sheath (1) is also provided with a tensile element (5) made of high-strength fiber material.

2. The composite cable of claim 1, wherein: The functional core also includes an optical cable (4), and the power core (2), signal core (3) and optical cable (4) are arranged in a straight line.

3. The composite cable according to claim 1, characterized in that: The tensile element (5) is a tensile filler rope disposed in the gap between the functional cores, and the number of tensile filler ropes is at least one.

4. The composite cable according to claim 3, characterized in that: The high-strength fiber material is aramid fiber or glass fiber.

5. The composite cable according to claim 2, characterized in that: The outer periphery of the signal core (3) is provided with a shielding layer (31).

6. The composite cable according to claim 5, characterized in that: The shielding layer (31) is an aluminum-plastic composite tape overlapping and wrapping structure or a woven wire mesh shielding structure.

7. The composite cable according to claim 1, characterized in that: The inner wall of the sheath (1) is provided with at least one anti-torsion rib (11) protruding along its length.

8. The composite cable according to claim 7, characterized in that: There are two anti-torsion ribs (11), which are located at the center of the flat structure sheath (1) corresponding to its wide side; the material of the sheath (1) is thermoplastic polyurethane elastomer or polyvinyl chloride.

Images