Wire cable with tensile function for wind power generation

Abstract

The utility model discloses a wind power generation wire cable with a tensile function, which relates to the technical field of cables and comprises a plurality of wires which are mutually woven and wound. According to the utility model, the plurality of wires are braided and wound to form a spiral shape, the structure not only provides continuous stretching support, but also can effectively disperse the stress in the cable, so that the stress can be uniformly distributed along the spiral ribs when the cable is stretched, thereby improving the overall stretching resistance of the cable, and improving the tensile strength of the cable. By arranging the outer filling layer, the tensile function of the cable is ensured, the steel tape armoring formed by the steel wire tape formed by weaving the first steel wires and the second steel wires in parallel further provides additional mechanical protection for the cable, and the structural integrity and the functional reliability of the cable are kept; therefore, the cable is more stable in laying, mounting and using processes, and is not easy to twist or deform.

Description

Technical Field

[0001] The utility model belongs to the technical field of cables, and in particular relates to an electric wire and cable for wind power generation with an anti-stretching function. Background Art

[0002] Cables include power cables, control cables, compensation cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, and aluminum alloy cables. They are all composed of single or multi-strand conductors and an insulation layer, and are used to connect circuits, electrical appliances, and other applications. However, existing wind power cables can break during use due to tension, exposing their internal structure to the external environment. This shortens the cable's service life, poses safety risks, and results in poor performance.

[0003] The Chinese patent with patent number CN211319764U discloses a wind power generation wire and cable with anti-stretching function, including a cable body, the cable body is provided with a protective mechanism, four evenly distributed cable sleeves are fixedly installed at the center position of the cable body, the four cable sleeves are provided with cable cores, and reinforcement pieces are fixedly connected between the four cable sleeves. The outer surfaces of the four cable sleeves are wrapped with a breathable layer, and the breathable layer is provided with a number of evenly distributed breathable holes. The outer surface of the breathable layer away from the cable sleeve is wrapped with a sealing layer, the outer surface of the sealing layer away from the breathable layer is wrapped with a waterproof layer, and the outer surface of the waterproof layer away from the sealing layer is wrapped with a flame retardant layer. Beneficial effect: the wind power generation wire and cable with this structural design has excellent anti-stretching effect in actual use, can effectively prevent the outer surface of the cable from cracking, has good performance, and has good reinforcement performance, a stable structure, good sealing, waterproofness and flame retardancy, a simple structure and a reasonable layout.

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned design of a wind power generation wire and cable with anti-stretching function has the following problems: First, the tensile spring may fatigue after being subjected to tensile force for a long time, resulting in weakened elasticity or failure. In wind power generation applications, the cable may experience long-term stretching and bending, which may accelerate the fatigue and failure process of the spring; Second, since the spring may fail, it needs to be inspected and replaced regularly, which increases maintenance costs and may affect the continuous operation of the wind power generation system; Third, the presence of the spring may limit the minimum bending radius of the cable. If the cable needs to be bent frequently and significantly, this may limit its scope of use; Fourth, the addition of the spring may increase the overall diameter of the cable, which may affect its applicability in certain application scenarios, especially in space-constrained environments; Fifth, under extreme environmental conditions, such as extreme cold or extreme heat, the performance of the spring may be affected, resulting in a decrease in the tensile strength of the cable. Therefore, the process of improving the tensile strength of the cable mainly through the spring has many limitations, which seriously restricts the normal use of the cable and has poor tensile strength. In view of this, a wind power generation wire and cable with anti-stretching function is provided to overcome the above-mentioned defects. Utility Model Content

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a wind power generation wire and cable with an anti-stretching function, so as to achieve the purpose of greatly improving the anti-stretching effect of the cable and extending its service life.

[0006] In order to solve the above technical problems, the utility model provides a wind power generation wire and cable with anti-stretching function, including a conductor, a plurality of the conductors are braided and wound with each other, and a plurality of equally spaced anti-stretching gaps are formed between the multiple conductors after winding. The conductor is composed of a high-conductivity conductor, a conductor shielding layer, an insulating layer, a metal shielding layer and an insulating shielding layer that are integrally formed from the inside to the outside. The outer walls of the multiple conductors are integrally formed with an inner sheath, and an outer filling layer is filled between the inner sheath and the conductor. The outer wall of the inner sheath is integrally formed with a steel belt armor, and the steel belt armor is composed of a steel belt formed by braiding a first steel wire and a second steel wire in parallel. The outer wall of the steel belt armor is integrally formed with an outer sheath.

[0007] Furthermore, an inner filling layer is filled between the plurality of wires, the material of the inner filling layer is aerogel, and the outer filling layer is a nano-clay composite material.

[0008] Furthermore, the material of the high-conductivity conductor is carbon nanotube, and the material of the insulating layer is fluoroplastic.

[0009] Furthermore, the inner sheath is made of bio-based plastic, and the outer sheath is made of recycled polyester.

[0010] Furthermore, a reinforcing core is integrally formed inside the inner filling layer, and the reinforcing core is made of carbon fiber.

[0011] Furthermore, spiral anti-stretching ribs are integrally formed inside the inner sheath and the outer sheath, and the material of the spiral anti-stretching ribs is aramid fiber.

[0012] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art.

[0013] 1. In the present invention, multiple conductors are woven and wound around each other to form a spiral shape. This structure not only provides continuous tensile support, but also can effectively disperse the stress in the cable. This structure enables the stress to be evenly distributed along the spiral ribs when the cable is stretched, thereby improving the overall tensile strength of the cable. By providing an outer filling layer, the tensile strength of the cable is ensured. The steel belt armor composed of a steel belt braided in parallel by a first steel wire and a second steel wire further provides additional mechanical protection for the cable, which can effectively prevent the cable from being over-stretched under the action of external force, thereby maintaining the structural integrity and functional reliability of the cable, and can increase the overall rigidity and stability of the cable, making the cable more stable during laying, installation and use, and not prone to twisting or deformation.

[0014] 2. In the present invention, the high porosity and low density of the aerogel enable it to absorb and disperse stress when stretched, reducing stress concentration and thus improving the tensile strength of the cable. Nanoclay composite materials generally have higher toughness, which means that when stretched, the material can absorb more energy and undergo plastic deformation rather than brittle fracture. This increase in toughness helps the cable maintain its integrity when stretched. Nanoclay composite materials generally have good thermal and chemical stability, which helps the cable maintain its tensile resistance under high temperatures or harsh environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of a wind power generation wire and cable with an anti-stretching function according to the utility model;

[0017] Figure 2This is a schematic diagram of the cross-sectional structure of a wire and cable for wind power generation with an anti-stretching function according to the utility model;

[0018] Figure 3 This is a schematic structural diagram of a conductor in a wind power generation wire and cable with an anti-stretching function according to the utility model;

[0019] Figure 4 This is a schematic diagram of the positional relationship between the first steel wire and the second steel wire in a wind power generation wire and cable with an anti-tensile function according to the utility model.

[0020] Numbers in the figure:

[0021] 1. Wire; 101. High-conductivity conductor; 102. Conductor shield; 103. Insulation layer; 104. Metal shield; 105. Insulation shield;

[0022] 2. Inner sheath; 3. Outer filling layer; 4. Inner filling layer;

[0023] 5. Steel belt armor; 501, first steel wire; 502, second steel wire;

[0024] 6. Outer sheath; 7. Anti-tensile gap.

[0025] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0028] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0029] The existing wind power generation wire and cable with anti-stretching function has the following problems: First, the tensile spring may fatigue after being subjected to tensile force for a long time, resulting in weakened elasticity or failure. In wind power generation applications, the cable may experience long-term stretching and bending, which may accelerate the fatigue and failure process of the spring; second, since the spring may fail, it needs to be inspected and replaced regularly, which increases maintenance costs and may affect the continuous operation of the wind power generation system; third, the presence of the spring may limit the minimum bending radius of the cable. If the cable needs to be bent frequently and significantly, this may limit its scope of use; fourth, the addition of the spring may increase the overall diameter of the cable, which may affect its applicability in certain application scenarios, especially in space-constrained environments; fifth, under extreme environmental conditions, such as extreme cold or extreme heat, the performance of the spring may be affected, resulting in a decrease in the cable's tensile resistance. Therefore, the cable mainly uses springs to improve the tensile resistance effect, which has many limitations, seriously restricting the normal use of the cable and having poor tensile resistance.

[0030] Example 1

[0031] Depend on Figures 1-4 The utility model provides a wire and cable for wind power generation with anti-stretching function.

[0032] Specifically, by Figures 1-4 Provided, including a wire 1, multiple wires 1 are braided and wound around each other, and multiple equally spaced tensile strength gaps 7 are formed between the multiple wires 1 after winding. The wire 1 is composed of a high-conductivity conductor 101, a conductor shielding layer 102, an insulating layer 103, a metal shielding layer 104, and an insulating shielding layer 105 that are integrally formed from the inside out. The outer walls of the multiple wires 1 are integrally formed with an inner sheath 2, and an outer filling layer 3 is filled between the inner sheath 2 and the wires 1. The outer wall of the inner sheath 2 is integrally formed with a steel belt armor 5, which is composed of a steel belt formed by braiding a first steel wire 501 and a second steel wire 502 in parallel. The outer wall of the steel belt armor 5 is integrally formed with an outer sheath 6;

[0033] An inner filling layer 4 is filled between multiple conductors 1. The material of the inner filling layer 4 is aerogel, and the outer filling layer 3 is a nanoclay composite material. The high porosity and low density of the aerogel enable it to absorb and disperse stress when stretched, reduce stress concentration, and thus improve the tensile strength of the cable. Aerogel materials usually have a certain elasticity. When deformed by external force, they can partially or completely recover to their original state. This elastic recovery property helps to form a good interface between the aerogel and the conductor 1, which can enhance the overall tensile performance of the cable. Aerogels usually have good thermal stability and can maintain their structure and even at high temperatures. Stable performance is crucial for the operation of cables in high-temperature environments. Aerogels usually have good anti-aging properties and can maintain their stable performance during long-term use, thereby extending the service life of cables. Nanoclays are usually dispersed in the matrix material in the form of nano-scale particles. Due to the small size effect and large specific surface area at the nanoscale, the interaction between nanoclay particles and the matrix is ​​very strong, thereby effectively enhancing the mechanical properties of the matrix. Nanoclay particles easily form a nanoscale network structure in the matrix. This network structure can effectively disperse and transfer stress, prevent stress concentration, and thus enhance the tensile strength of the cable.

[0034] Multiple conductors 1 are woven and wound around each other to form a spiral shape. This structure not only provides continuous tensile support, but also can effectively disperse the stress in the cable. This structure allows the stress to be evenly distributed along the spiral ribs when the cable is stretched, thereby improving the overall tensile strength of the cable. The coordinated use of the high-conductivity conductor 101, the conductor shielding layer 102, the insulating layer 103, the metal shielding layer 104 and the insulating shielding layer 105 ensures the normal use of the conductor 1. By setting the outer filling layer 3, the tensile strength of the cable is ensured. The steel belt armor 5 composed of a steel belt braided in parallel by two strands of the first steel wire 501 and the second steel wire 502 further provides additional mechanical protection for the cable. When the cable is impacted or squeezed by external forces, it can effectively disperse and resist these forces, reduce direct damage to the cable, and has high tensile strength itself, which can provide additional support when the cable is stretched.

[0035] Example 2

[0036] On the basis of Example 1, further, as a specific implementation of the present invention, the present invention provides a wire and cable for wind power generation with an anti-tensile function.

[0037] Specifically, by Figure 2It is given that the material of the high-conductivity conductor 101 is carbon nanotubes, and the material of the insulating layer 103 is fluoroplastics; carbon nanotubes have extremely high tensile strength and stiffness, and are one of the strongest known materials. This allows carbon nanotubes to be used as reinforcing materials in cables to effectively improve the tensile strength of the cables, enabling them to withstand greater external forces without breaking; fluoroplastics have excellent chemical corrosion resistance and can resist the erosion of a variety of strong acids, strong alkalis and organic solvents, which allows the cables to maintain stable performance in harsh chemical environments, thereby improving the reliability and service life of the cables.

[0038] The inner sheath 2 and the outer sheath 6 are both integrally formed with spiral anti-tensile ribs, which are made of aramid fiber. Aramid fiber is known for its high strength and high modulus. These properties make it an excellent reinforcing material. When aramid fiber is added to the cable in a spiral form as an anti-tensile rib, it can significantly improve the tensile strength and tensile resistance of the cable. Aramid fiber not only has high strength but also has excellent elasticity.

[0039] Furthermore, as a specific embodiment of the present invention, the present invention provides a wire and cable for wind power generation with an anti-stretching function.

[0040] Specifically, by Figure 2 It is given that the material of the inner sheath 2 is bio-based plastic, and the material of the outer sheath 6 is recycled polyester. Bio-based plastic is made from renewable biomass resources, such as plant oils or starch, and has a low carbon footprint and biodegradability. Using bio-based plastic as the inner sheath 2 helps to reduce the environmental impact during the cable production process. Polyester material has good elasticity and tensile resistance, which enables the recycled polyester material as the outer sheath 6 to provide additional protection and support for the cable. When subjected to external force, the outer sheath 6 can effectively disperse and withstand tensile force, thereby improving the overall tensile strength of the cable.

[0041] Working principle:

[0042] Multiple conductors 1 are woven and wound around each other to form a spiral shape. This structure not only provides continuous tensile support, but also can effectively disperse the stress in the cable. This structure allows the stress to be evenly distributed along the spiral ribs when the cable is stretched, thereby improving the overall tensile strength of the cable. The coordinated use of the high-conductivity conductor 101, the conductor shielding layer 102, the insulating layer 103, the metal shielding layer 104 and the insulating shielding layer 105 ensures the normal use of the conductor 1. By setting the outer filling layer 3, the tensile strength of the cable is ensured. The steel belt armor 5 composed of steel belts woven in parallel by two strands of the first steel wire 501 and the second steel wire 502 further provides additional mechanical protection for the cable.

[0043] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments with equivalent changes using the above-mentioned technical contents without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A wire and cable for wind power generation with anti-stretching function, comprising a conductor (1), characterized in that: The plurality of conductors (1) are braided and wound around each other, and a plurality of equally spaced tensile-resistant gaps (7) are formed between the plurality of conductors (1) after being wound. The conductor (1) is composed of a high-conductivity conductor (101), a conductor shielding layer (102), an insulating layer (103), a metal shielding layer (104), and an insulating shielding layer (105) which are integrally formed from the inside out. The outer walls of the plurality of conductors (1) are integrally formed with an inner sheath (2), an outer filling layer (3) is filled between the inner sheath (2) and the conductor (1), and a steel belt armor (5) is integrally formed on the outer wall of the inner sheath (2). The steel belt armor (5) is composed of a steel belt formed by braiding a first steel wire (501) and a second steel wire (502) in parallel. The outer wall of the steel belt armor (5) is integrally formed with an outer sheath (6).

2. The wire and cable for wind power generation with anti-stretching function according to claim 1, characterized in that: An inner filling layer (4) is filled between the plurality of conductive wires (1); the material of the inner filling layer (4) is aerogel, and the outer filling layer (3) is a nano-clay composite material.

3. The wire and cable for wind power generation with anti-stretching function according to claim 2, characterized in that: The material of the high-conductivity conductor (101) is carbon nanotubes, and the material of the insulating layer (103) is fluoroplastic.

4. The wire and cable for wind power generation with anti-stretching function according to claim 3, characterized in that: The material of the inner sheath (2) is bio-based plastic, and the material of the outer sheath (6) is recycled polyester.

5. The wire and cable for wind power generation with anti-stretching function according to claim 4, characterized in that: A reinforcing core is integrally formed inside the inner filling layer (4), and the material of the reinforcing core is carbon fiber.

6. The wire and cable for wind power generation with anti-stretching function according to claim 5, characterized in that: The inner sheath (2) and the outer sheath (6) are both integrally formed with spiral anti-stretching ribs, and the material of the spiral anti-stretching ribs is aramid fiber.

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