High-tensile waterproof cable

Abstract

The utility model relates to the technical field of cables, and discloses a high tensile waterproof cable comprising an outer sheath, the outer sheath wraps a tensile layer, the tensile layer is located at the outer side of a waterproof layer, the waterproof layer wraps an insulating layer, the insulating layer is combined with a filling layer, the filling layer is arranged between a shielding layer and the waterproof layer, and the shielding layer is arranged between the shielding layer and the waterproof layer. The shielding layer wraps the conductor, the outer sheath is made of a high-performance polyurethane or modified polyolefin material, the outer surface of the outer sheath is coated with a nanoscale waterproof coating, and the outer sheath is firmly combined with the tensile layer through an extrusion process, so that the waterproof performance and the wear resistance are improved. According to the utility model, through the layered structure design, the durability of the outer sheath, the high strength of the tensile layer, the dual protection of the waterproof layer and the multi-layer anti-interference design of the shielding layer, the cable has excellent tensile, waterproof and anti-interference performance, and overcomes the defects of easy damage, poor waterproof performance and unstable signal transmission in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a high tensile strength waterproof cable. Background Technology

[0002] Cables, as an important medium for transmitting electrical energy and signals, are widely used in power, communications, transportation, construction and other fields. With the rapid development of industrialization and urbanization, the application requirements of cables have gradually expanded from ordinary environments to complex and harsh scenarios, such as environments with high humidity, high tensile force, and strong electromagnetic interference.

[0003] Cables transmit electrical energy or signals through conductors and are protected and supported by other structures. The conductor, as the core component, achieves efficient conduction of electrical energy or signals through low-resistance materials (such as copper or aluminum); the insulation layer covers the conductor, which isolates current and prevents leakage. The multi-layered structural design needs to work in coordination to meet the long-term use requirements in complex environments.

[0004] High-tensile waterproof cables cannot withstand high-strength tensile forces or repeated bending conditions, making them prone to damage or breakage. Furthermore, existing waterproof technologies often employ a single water-blocking material design, such as water-blocking tape or filler adhesive, which cannot cope with long-term water immersion or water vapor penetration, making it difficult to guarantee waterproof performance. Therefore, a high-tensile waterproof cable is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high tensile strength waterproof cable, which aims to improve the existing tensile strength waterproof cables that are difficult to adapt to high-strength tensile or repeated bending conditions, are easily damaged or broken, and the existing single water-blocking material design cannot cope with long-term water immersion or water vapor penetration, resulting in insufficient waterproof performance.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high tensile strength waterproof cable, comprising an outer sheath, wherein the outer sheath is covered with a tensile layer, the tensile layer is located outside the waterproof layer, the waterproof layer is covered with an insulation layer, the insulation layer is combined with a filling layer, and the filling layer is disposed between a shielding layer and a waterproof layer, and the shielding layer covers a conductor;

[0007] As a further description of the above technical solution: the outer sheath is made of high-performance polyurethane or modified polyolefin material, and the outer surface of the outer sheath is coated with a nano-level waterproof coating. The outer sheath is firmly bonded to the tensile layer through an extrusion process to improve waterproof performance and wear resistance.

[0008] As a further description of the above technical solution: the tensile layer includes a first aramid fiber braided layer, a second galvanized steel wire armor layer and a third carbon fiber reinforced composite material layer. The three-layer tensile structure of the tensile layer is arranged by a layered bonding method, and the carbon fiber reinforced composite material layer is in direct contact with the waterproof layer.

[0009] As a further description of the above technical solution: the waterproof layer includes a high-density expansion water-blocking tape and a waterproof filler adhesive, the water-blocking tape is wrapped around the inner side of the tensile layer, and the waterproof filler adhesive is used to fill the gap between the waterproof layer and the insulation layer;

[0010] As a further description of the above technical solution: the insulating layer is made of cross-linked polyethylene or ethylene propylene rubber, and the insulating layer is coated with the filler layer and conductor by an extrusion process and is firmly bonded to the waterproof layer, which has excellent high temperature resistance and electrical insulation properties;

[0011] As a further description of the above technical solution: the filling layer is made of a flexible waterproof material, which is filled between the insulation layer and the shielding layer to reduce mechanical stress and improve the overall waterproof performance;

[0012] As a further description of the above technical solution: the shielding layer includes an aluminum foil shielding layer and a tin-plated copper mesh braided layer. The aluminum foil shielding layer covers the inner side of the filling layer, and the tin-plated copper mesh braided layer is closely attached to the outer side of the conductor to reduce external electromagnetic interference.

[0013] As a further description of the above technical solution: the conductor is made of high-purity annealed copper or tin-plated copper, and the conductor is covered by a shielding layer, which can maintain high conductivity and corrosion resistance in high humidity or harsh environments.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, a technical solution is adopted with an outer sheath, a tensile layer, a waterproof layer, an insulation layer, a filling layer, a shielding layer, and a conductor layer structure. Through the synergistic effect of the wear-resistant, waterproof, and corrosion-resistant properties of the outer sheath and the three-layer composite reinforcement structure of the tensile layer, the technical effect of high tensile strength, waterproof performance, and durability in harsh environments is achieved. Compared with the existing technical solutions with simple cable structure, insufficient tensile strength, and poor mechanical protection performance, this solution solves the shortcomings of cable that is easily damaged and broken in high-tensile or frequent motion scenarios.

[0016] 2. In this utility model, a technical solution is adopted, which uses a double-protection structure of waterproof layer and a multi-layer anti-interference design of shielding layer. The high-density expansion water-blocking tape and waterproof filler effectively prevent water penetration. At the same time, the aluminum foil shielding layer and tin-plated copper mesh braiding layer reduce electromagnetic interference, achieving the technical effect of stable operation for a long time in humid or complex electromagnetic environments. Compared with the existing technology, which has a single waterproof capability and insufficient anti-electromagnetic interference performance, this solution solves the shortcomings of being easily damaged by water vapor in humid environments and unstable signal or power transmission under electromagnetic interference. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of a high tensile strength waterproof cable proposed in this utility model;

[0018] Figure 2 This is a cross-sectional view of a high tensile strength waterproof cable proposed in this utility model.

[0019] Legend:

[0020] 1. Outer sheath; 2. Tensile layer; 3. Waterproof layer; 4. Insulation layer; 5. Filler layer; 6. Shielding layer; 7. Conductor. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figures 1-2 The present invention provides an embodiment of a high tensile strength waterproof cable, comprising an outer sheath 1, an outer sheath 1 covering a tensile layer 2, the tensile layer 2 being located outside a waterproof layer 3, a waterproof layer 3 covering an insulation layer 4, the insulation layer 4 being combined with a filling layer 5, and the filling layer 5 being disposed between a shielding layer 6 and a waterproof layer 3, and a shielding layer 6 covering a conductor 7. Through the above structure, a layer-by-layer protection from the outside to the inside is formed, improving the mechanical strength and electrical performance of the cable.

[0023] The outer sheath 1 is made of high-performance polyurethane or modified polyolefin material, which has wear-resistant, waterproof and corrosion-resistant properties, and can protect the cable from damage from the external environment. The outer surface of the outer sheath 1 is coated with a nano-level waterproof coating to further enhance the waterproof ability, and the tensile layer 2 is firmly bonded by the extrusion process to ensure the overall firmness of the outer sheath 1 and the cable.

[0024] The tensile layer 2 includes a first aramid fiber braided layer, a second galvanized steel wire armor layer, and a third carbon fiber reinforced composite material layer. The three-layer structure is arranged by layering and bonding. The aramid fiber provides flexible tensile properties, the galvanized steel wire armor layer enhances impact resistance, and the carbon fiber reinforced composite material layer is in direct contact with the waterproof layer 3, further improving the overall tensile strength and durability of the cable.

[0025] The waterproof layer 3 includes a high-density expansion water-blocking tape and a waterproof filler. The water-blocking tape can expand rapidly in a humid environment and block water penetration. The waterproof filler fills the gap between the waterproof layer 3 and the insulation layer 4. Through the synergistic effect of the two, water can be effectively prevented from entering the cable, ensuring the stable operation of the cable in a humid or underwater environment.

[0026] The insulation layer 4 is made of cross-linked polyethylene or ethylene propylene rubber, which has excellent electrical insulation properties and can isolate the conductor 7 from other parts to prevent current leakage. At the same time, its high temperature resistance ensures that the cable works stably in high temperature environments. The insulation layer 4 is wrapped with the filler layer 5 and the conductor 7 through an extrusion process and is firmly bonded to the waterproof layer 3 to ensure the overall stability of the structure.

[0027] The filling layer 5 is made of flexible waterproof material and is filled between the insulation layer 4 and the shielding layer 6. It can absorb the mechanical stress that may be generated inside, while enhancing the tightness and waterproof performance of the cable structure and further improving the service life of the cable.

[0028] The shielding layer 6 includes an aluminum foil shielding layer and a tinned copper mesh braided layer. The aluminum foil shielding layer is used to reduce electromagnetic interference during cable operation. The tinned copper mesh braided layer is close to the outside of the conductor 7 to further shield external electromagnetic waves and ensure the stability of signal transmission or power delivery of the cable in complex electromagnetic environments.

[0029] Conductor 7 is made of high-purity annealed copper or tin-plated copper, which has excellent conductivity and corrosion resistance, and can operate stably for a long time in high humidity or harsh environments. It is also protected by shielding layer 6, which further improves the durability and electrical performance of the cable.

[0030] Working principle: During operation, the outer sheath 1 of the high tensile waterproof cable provides external protection for the entire cable through its wear-resistant, corrosion-resistant and waterproof properties, enabling it to adapt to various harsh environments, reduce external mechanical damage and extend its service life.

[0031] The tensile layer 2 consists of an aramid fiber braided layer, a galvanized steel wire armor layer, and a carbon fiber reinforced composite material layer. These three layers work together to evenly distribute stress and effectively improve tensile strength when the cable is subjected to external tensile force or impact, thereby ensuring the stability and integrity of the cable structure.

[0032] Waterproof layer 3 effectively prevents moisture from penetrating into the cable through the expansion and sealing effect of high-density expansion water-blocking tape and the sealing performance of waterproof filler, and provides reliable waterproof protection in humid or immersion environments, ensuring the functionality of the internal structure.

[0033] The insulation layer 4 is made of cross-linked polyethylene or ethylene propylene rubber. Its excellent electrical insulation properties effectively isolate the conductor 7 from other parts and prevent current leakage. At the same time, its high temperature resistance allows the cable to maintain stable operation in high temperature environments.

[0034] The filling layer 5 is made of flexible waterproof material and is filled between the insulation layer 4 and the shielding layer 6. It can absorb the mechanical stress that may be generated inside the cable, while enhancing the tightness of the structure and further improving the overall waterproof performance.

[0035] The shielding layer 6 consists of an aluminum foil shielding layer and a tinned copper mesh braided layer. The aluminum foil shielding layer can effectively reduce electromagnetic interference during cable operation, while the tinned copper mesh braided layer further shields external electromagnetic waves, ensuring the stability and anti-interference performance of signal transmission or power transmission.

[0036] Conductor 7 is made of high-purity annealed copper or tin-plated copper, which has low resistance, high conductivity and corrosion resistance. Under the protection of shielding layer 6, it can operate stably for a long time and ensure that the cable has excellent performance even in high humidity or harsh environments.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high tensile waterproof cable comprising an outer sheath (1), characterised in that: The outer sheath (1) covers the tensile layer (2), the tensile layer (2) is located outside the waterproof layer (3), the waterproof layer (3) covers the insulation layer (4), the insulation layer (4) is combined with the filling layer (5), and the filling layer (5) is arranged between the shielding layer (6) and the waterproof layer (3), and the shielding layer (6) covers the conductor (7).

2. A high tensile waterproof cable as claimed in claim 1, wherein: The outer sheath (1) is made of high-performance polyurethane or modified polyolefin material, and the outer surface of the outer sheath (1) is coated with a nanoscale waterproof coating, and the outer sheath (1) is firmly combined with the tensile layer (2) through an extrusion process to improve waterproof performance and wear resistance.

3. A high tensile waterproof cable as claimed in claim 1, wherein: The tensile layer (2) includes a first layer of aramid fiber woven layer, a second layer of galvanized steel wire armor layer and a third layer of carbon fiber reinforced composite material layer, the three-layer tensile structure of the tensile layer (2) is arranged in a layered manner, and the carbon fiber reinforced composite material layer is in direct contact with the waterproof layer (3).

4. A high tensile waterproof cable as claimed in claim 1, wherein: The waterproof layer (3) includes a high-density water-blocking tape and a waterproof filling glue, the water-blocking tape is covered on the inner side of the tensile layer (2), and the waterproof filling glue is used to fill the gap between the waterproof layer (3) and the insulation layer (4).

5. A high tensile waterproof cable as claimed in claim 1, wherein: The insulation layer (4) is made of cross-linked polyethylene or ethylene propylene rubber, the insulation layer (4) covers the filling layer (5) and the conductor (7) through an extrusion process, and is firmly combined with the waterproof layer (3), and has excellent high-temperature resistance and electrical insulation performance.

6. A high tensile waterproof cable as claimed in claim 1, wherein: The filling layer (5) is made of flexible waterproof material, the flexible waterproof material is filled between the insulation layer (4) and the shielding layer (6), and is used to reduce mechanical stress and improve overall waterproof performance.

7. A high tensile waterproof cable as claimed in claim 1, wherein: The shielding layer (6) includes an aluminum foil shielding layer and a tinned copper mesh woven layer, the aluminum foil shielding layer is covered on the inner side of the filling layer (5), and the tinned copper mesh woven layer is tightly attached to the outer side of the conductor (7), and is used to reduce external electromagnetic interference.

8. A high tensile waterproof cable as claimed in claim 1, wherein: The conductor (7) is made of high-purity annealed copper or tinned copper, the conductor (7) is covered by the shielding layer (6), and can maintain high conductivity and corrosion resistance in high humidity or harsh environments.

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