High-tensile steel-cored aluminum stranded conductor cable

Abstract

The utility model discloses a high tensile steel-cored aluminum stranded conductor cable, which comprises a cable body, the cable body comprises a cable core and an outer functional layer, the cable core comprises a wire core, a protective layer and a high-strength alloy armor layer, the protective layer is arranged on the outer side of the wire core, the high-strength alloy armor layer is arranged on the outer side of the protective layer, and the outer functional layer is arranged on the outer side of the high-strength alloy armor layer. The protective layer comprises a wire core sheath layer, an inner insulating layer, a shielding layer and a high-strength tensile fiber layer. The tensile capacity of the steel-cored aluminum stranded conductor cable is enhanced, the operation stability of a power system is improved, and therefore the problems that although a traditional steel-cored aluminum stranded conductor cable has a certain tensile capacity, the tensile performance of the traditional steel-cored aluminum stranded conductor cable can be reduced under extreme weather conditions, external force damage or long-term heavy-load operation and other extreme conditions, and the service life of the cable is prolonged are solved. And the risk of cable breakage is increased.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a high-tensile steel-core aluminum stranded cable. Background Technology

[0002] Cable is a combination of conductors used to transmit electrical energy or signals. It is widely used in various power systems and communication networks. Among the many types of cables, steel-cored aluminum stranded cable is favored for its unique structure and excellent performance. Steel-cored aluminum stranded cable is a power transmission cable made of aluminum wire and steel wire twisted together. It has a steel core inside and aluminum wire wrapped around the steel core by twisting.

[0003] For example, the authorized patent with announcement number CN220605080U (a steel-cored aluminum stranded cable) includes an insulating protective layer, a steel core wire, aluminum stranded wire, a connecting sleeve, and a connecting ring. The aluminum stranded wire is arranged on the outer wall of the steel core wire in a spiral shape, and there are multiple aluminum stranded wires. The multiple aluminum stranded wires are evenly distributed in a ring along the axis of the steel core wire. The insulating protective layer is arranged on the outside of the aluminum stranded wire. The connecting sleeve is detachably installed on the outer wall of the insulating protective layer. The connecting ring is rotatably installed on the outer wall of the connecting sleeve. An electromagnetic shielding layer is fixedly bonded to the inner wall of the insulating protective layer. A flame-retardant layer is arranged on the side of the electromagnetic shielding layer away from the insulating protective layer. The inner wall of the flame-retardant layer is attached to the outer wall of the aluminum stranded wire.

[0004] While the aforementioned existing technologies can effectively improve wiring efficiency, traditional steel-cored aluminum stranded cables, although possessing a certain tensile strength, will experience a decrease in tensile performance under extreme weather conditions, external force damage, or long-term heavy-load operation, increasing the risk of cable breakage and affecting the stable operation of the power system. Therefore, the market urgently needs to develop a high-tensile steel-cored aluminum stranded cable to help people solve the existing problems. Utility Model Content

[0005] The purpose of this utility model is to provide a high tensile strength steel-cored aluminum stranded cable to solve the problem mentioned in the background art that although traditional steel-cored aluminum stranded cables have a certain tensile strength, their tensile performance will decrease when encountering extreme weather conditions, external force damage, or long-term heavy-load operation, which increases the risk of cable breakage and affects the stable operation of the power system.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high tensile strength steel-core aluminum stranded cable, comprising a cable body, the cable body comprising a cable core and an outer functional layer, the cable core comprising a conductor, a protective layer and a high-strength alloy armor layer, the protective layer being disposed on the outside of the conductor, the high-strength alloy armor layer being disposed on the outside of the protective layer, the protective layer comprising a conductor sheath layer, an inner insulation layer, a shielding layer and a high-strength tensile fiber layer.

[0007] Preferably, the high-strength tensile fiber layer is disposed on the outside of the wire core, the shielding layer is disposed on the outside of the high-strength tensile fiber layer, the inner insulation layer is disposed on the outside of the shielding layer, and the wire core sheath layer is disposed on the outside of the inner insulation layer.

[0008] Preferably, the high-strength tensile fiber layer is made of a mixture of various high-strength fiber materials, including carbon fiber, aramid fiber, and glass fiber.

[0009] Preferably, the high-strength alloy armor layer is made of lightweight titanium alloy material.

[0010] Preferably, a high-strength fiber tape layer is provided between the protective layer and the high-strength alloy armor layer, and the high-strength fiber tape layer is wound around the outside of the protective layer in a spiral winding manner.

[0011] Preferably, the wire core includes a steel core wire and aluminum stranded wire, wherein multiple aluminum stranded wires are provided, and the aluminum stranded wires are wound around the outside of the steel core wire by twisting.

[0012] Preferably, the outer functional layer includes an outer sheath layer, a flame-retardant layer, a heat insulation layer, and an outer insulation layer. The outer insulation layer is disposed outside the high-strength alloy armor layer, the heat insulation layer is disposed outside the outer insulation layer, the flame-retardant layer is disposed outside the heat insulation layer, and the outer sheath layer is disposed outside the flame-retardant layer.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) By setting a high-strength tensile fiber layer, this utility model can significantly improve the tensile strength of the cable. Even under extreme weather conditions, such as strong winds and snow cover, the high-strength tensile fiber layer can effectively resist external stress and prevent the cable from breaking due to excessive stretching. The high-strength alloy armor layer provides another solid line of defense for the cable, which can resist external damage, thereby improving the tensile performance and stability of the cable, reducing the risk of cable breakage, and thus ensuring the safe and stable operation of the power system and improving the reliability and safety of the cable.

[0015] (2) The utility model has a protective layer including a core sheath layer, an inner insulation layer, a shielding layer and a high-strength tensile fiber layer. The core sheath layer not only provides preliminary mechanical protection, but also ensures effective isolation between the core and the external environment. The inner insulation layer provides electrical insulation and effectively prevents current leakage and short circuits. The shielding layer further enhances the electromagnetic compatibility of the cable and reduces the impact of external electromagnetic interference on the cable performance.

[0016] (3) The utility model includes an outer sheath layer, a flame retardant layer, a heat insulation layer and an outer insulation layer in the outer functional layer. The outer insulation layer provides necessary electrical insulation to prevent current leakage and short circuit risk. The heat insulation layer reduces the impact of external temperature fluctuations on the inside of the cable and maintains the stability of the internal temperature of the cable. The flame retardant layer enhances the fire resistance of the cable and helps to ensure the stable use of the cable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a high tensile strength steel core aluminum stranded cable according to the present invention;

[0018] Figure 2 This is a side sectional view of a high tensile strength steel-core aluminum stranded cable according to the present invention.

[0019] Figure 3 This is a schematic diagram of the internal structure of the protective layer of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the outer functional layer of this utility model.

[0021] In the diagram: 1. Cable core; 101. Wire core; 1011. Steel core wire; 1012. Aluminum stranded wire; 102. Protective layer; 1021. Wire core sheath layer; 1022. Inner insulation layer; 1023. Shielding layer; 1024. High-strength tensile fiber layer; 103. High-strength alloy armor layer; 2. Outer functional layer; 201. Outer sheath layer; 202. Flame retardant layer; 203. Thermal insulation layer; 204. Outer insulation layer; 3. High-strength fiber tape layer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4 The present invention provides an embodiment of a high tensile strength steel-cored aluminum stranded cable, comprising a cable body, the cable body comprising a cable core 1 and an outer functional layer 2, the cable core 1 comprising a conductor 101, a protective layer 102 and a high-strength alloy armor layer 103, the protective layer 102 being disposed on the outside of the conductor 101, the high-strength alloy armor layer 103 being disposed on the outside of the protective layer 102, and the protective layer 102 comprising a conductor sheath layer 1021, an inner insulation layer 1022, a shielding layer 1023 and a high-strength tensile fiber layer 1024.

[0024] By incorporating a high-strength tensile fiber layer 1024 outside the shielding layer 1023, the tensile strength of the cable is significantly enhanced. Even under extreme weather conditions, such as strong winds and snow cover, the high-strength tensile fiber layer can effectively resist external stress and prevent the cable from breaking due to excessive stretching. The high-strength alloy armor layer 103 provides another solid line of defense for the cable, resisting external damage such as construction accidents and vehicle impacts, extending the cable's service life, and thus improving the cable's tensile performance and stability. In the face of complex environments such as extreme weather conditions, external damage, or long-term heavy-load operation, it can maintain excellent performance, greatly reducing the risk of cable breakage, thereby ensuring the safe and stable operation of the power system and improving the reliability and safety of the cable.

[0025] Please see Figure 3 A high-strength tensile fiber layer 1024 is disposed on the outside of the core 101, a shielding layer 1023 is disposed on the outside of the high-strength tensile fiber layer 1024, an inner insulation layer 1022 is disposed on the outside of the shielding layer 1023, and a core sheath layer 1021 is disposed on the outside of the inner insulation layer 1022.

[0026] The sheath layer 1021 not only provides initial mechanical protection but also ensures effective isolation between the conductor and the external environment. The inner insulation layer 1022 provides electrical insulation, effectively preventing current leakage and short circuits. The shielding layer 1023 further enhances the electromagnetic compatibility of the cable and reduces the impact of external electromagnetic interference on cable performance.

[0027] Please see Figure 3 The high-strength tensile fiber layer 1024 is made of a mixture of various high-strength fiber materials, including carbon fiber, aramid fiber and glass fiber.

[0028] Carbon fiber, aramid fiber, and glass fiber materials not only have excellent tensile strength and wear resistance, but also have low density, which helps to reduce the overall weight of the cable, making it easier to install and transport, reducing the burden on the supporting structure, while maintaining good mechanical properties.

[0029] Please see Figure 2 The high-strength alloy armor layer 103 is made of lightweight titanium alloy material.

[0030] Titanium alloys, with their high strength, low density, and good corrosion resistance, provide robust physical protection for cables, effectively resisting damage from external forces such as construction accidents and vehicle collisions. At the same time, they reduce the weight of the cables and improve their flexibility and deployability.

[0031] Please see Figure 2A high-strength fiber tape layer 3 is provided between the protective layer 102 and the high-strength alloy armor layer 103. The high-strength fiber tape layer 3 is wound around the outside of the protective layer 102 in a spiral winding manner.

[0032] The high-strength fiber tape layer 3 is tightly bonded to the outside of the protective layer 102 by spiral winding, which not only enhances the overall structural stability of the cable and improves its ability to resist external impact and compression, but also effectively absorbs and disperses the vibration and stress of the cable in the dynamic environment through the elastic properties of the fiber tape, further extending the service life of the cable.

[0033] Please see Figure 2 The wire core 101 includes a steel core wire 1011 and an aluminum stranded wire 1012. Multiple aluminum stranded wires 1012 are provided, and the aluminum stranded wires 1012 are wound around the outside of the steel core wire 1011 by twisting.

[0034] Aluminum stranded wire 1012 has excellent conductivity and light weight, ensuring efficient power transmission and lightweight design of the cable.

[0035] Please see Figure 4 The outer functional layer 2 includes an outer sheath layer 201, a flame retardant layer 202, a heat insulation layer 203, and an outer insulation layer 204. The outer insulation layer 204 is disposed on the outside of the high-strength alloy armor layer 103, the heat insulation layer 203 is disposed on the outside of the outer insulation layer 204, the flame retardant layer 202 is disposed on the outside of the heat insulation layer 203, and the outer sheath layer 201 is disposed on the outside of the flame retardant layer 202.

[0036] The outer insulation layer 204 provides the necessary electrical insulation, preventing current leakage and short circuit risks. The thermal insulation layer 203 reduces the impact of external temperature fluctuations on the inside of the cable, maintaining the stability of the internal temperature of the cable. The flame retardant layer 202 enhances the fire resistance of the cable, which helps to ensure the stable use of the cable.

[0037] Working principle: In use, the cable body consists of a cable core 1 and an outer functional layer 2. The cable core 1 contains a wire core 101 composed of a steel core wire 1011 and an aluminum stranded wire 1012. The wire core 101 is wrapped with a wire core sheath layer 1021, an inner insulation layer 1022, a shielding layer 1023, and a high-strength tensile fiber layer 1024 in sequence, forming multiple protections. The high-strength tensile fiber layer 1024 is made of a mixture of carbon fiber, aramid fiber, and glass fiber, which improves the tensile strength and wear resistance of the cable, effectively resists external stress under extreme weather conditions, and prevents the cable from breaking. The high-strength alloy armor layer 103 is made of lightweight titanium alloy material, providing solid physical protection for the cable to resist external damage, such as construction accidents and vehicle impacts. At the same time, it reduces the weight of the cable and enhances its flexibility and deployability. The high-strength fiber tape layer 3 added between the protective layer 102 and the high-strength alloy armor layer 103 enhances the structural stability of the cable through a spiral winding method, absorbs and disperses vibrations and stresses in the dynamic environment, which is conducive to the stable and safe transmission of electrical energy in complex environments, and improves the reliability and safety of the cable.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-tensile steel-cored aluminum stranded cable, comprising a cable body, characterized in that: The cable body includes a cable core (1) and an outer functional layer (2). The cable core (1) includes a conductor (101), a protective layer (102), and a high-strength alloy armor layer (103). The protective layer (102) is disposed on the outside of the conductor (101), and the high-strength alloy armor layer (103) is disposed on the outside of the protective layer (102). The protective layer (102) includes a conductor sheath layer (1021), an inner insulation layer (1022), a shielding layer (1023), and a high-strength tensile fiber layer (1024). The high-strength tensile fiber layer (1024) is made of a mixture of carbon fiber, aramid fiber, and glass fiber, among other high-strength fiber materials.

2. The high tensile strength steel-cored aluminum stranded cable according to claim 1, characterized in that: The high-strength tensile fiber layer (1024) is disposed on the outside of the core (101), the shielding layer (1023) is disposed on the outside of the high-strength tensile fiber layer (1024), the inner insulation layer (1022) is disposed on the outside of the shielding layer (1023), and the core sheath layer (1021) is disposed on the outside of the inner insulation layer (1022).

3. The high tensile strength steel-cored aluminum stranded cable according to claim 1, characterized in that: The high-strength alloy armor layer (103) is made of lightweight titanium alloy material.

4. The high tensile strength steel-cored aluminum stranded cable according to claim 1, characterized in that: A high-strength fiber tape layer (3) is provided between the protective layer (102) and the high-strength alloy armor layer (103), and the high-strength fiber tape layer (3) is wound around the outside of the protective layer (102) in a spiral winding manner.

5. A high tensile strength steel-cored aluminum stranded cable according to claim 1, characterized in that: The core (101) includes a steel core wire (1011) and an aluminum stranded wire (1012). Multiple aluminum stranded wires (1012) are provided, and the aluminum stranded wires (1012) are wound around the outside of the steel core wire (1011) by twisting.

6. The high tensile strength steel-cored aluminum stranded cable according to claim 1, characterized in that: The outer functional layer (2) includes an outer sheath layer (201), a flame retardant layer (202), a thermal insulation layer (203), and an outer insulation layer (204). The outer insulation layer (204) is disposed outside the high-strength alloy armor layer (103), the thermal insulation layer (203) is disposed outside the outer insulation layer (204), the flame retardant layer (202) is disposed outside the thermal insulation layer (203), and the outer sheath layer (201) is disposed outside the flame retardant layer (202).

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