Bending-resistant electric wire
By combining a flexible metal core, insulation layer, aluminum wire braided mesh, reinforcing ribs, nylon braided layer, and waterproof protective layer, the problem of wire breakage when bent is solved, achieving stable transmission and extended service life of the wire in different environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN YUTE SPECIAL WIRE CO LTD
- Filing Date
- 2025-01-13
- Publication Date
- 2026-04-21
AI Technical Summary
Existing electrical wires are prone to bending during use, which can cause the wire core to fold in half, affecting transmission speed and, in severe cases, break, thus affecting safety and lifespan.
It adopts a combined structure of elastic metal core, insulation layer, aluminum wire braided mesh, reinforcing ribs, nylon braided layer, waterproof protective layer and protective sheath. It utilizes the characteristics of each layer of materials to enhance the structural stability and tensile strength of the wire, and improve insulation performance and protection capabilities.
It improves the tensile strength and abrasion resistance of the wire, enhances the safety and stability of the wire in different environments, extends its service life, and ensures stable operation in humid and harsh environments.
Smart Images

Figure CN224153157U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire manufacturing, and in particular to a bending-resistant wire. Background Technology
[0002] Electric wires are conductors that transmit electrical energy. Electric wires are divided into bare wires, electromagnetic wires, and insulated wires. Electric wires are used in outdoor overhead lines and indoor busbars and switch boxes. Power wires are commonly used in urban underground power grids, power plant lead-out lines, internal power supply in industrial and mining enterprises, and underwater transmission lines across rivers and seas.
[0003] In power lines, the proportion of wires is gradually increasing. Power wires are wire products used to transmit and distribute high-power electrical energy in the main lines of the power system, including power wires of various voltage levels and various insulation types.
[0004] During use, electrical wires inevitably bend. If the wire core is folded in half, it will affect the transmission speed, and in severe cases, it may even break, affecting its use. Therefore, a bend-resistant wire is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a bending-resistant wire, which aims to improve the problem that wires inevitably bend during use, causing the wire core to fold in half, which affects the transmission speed and, in severe cases, breaks, affecting the use of the wire.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a bending-resistant wire, comprising an elastic metal core, wherein an insulating layer is fixedly sleeved on the outer surface of the elastic metal core, an aluminum wire braided mesh is fixedly sleeved on the outer peripheral surface of the insulating layer, reinforcing ribs are uniformly distributed inside the aluminum wire braided mesh, a nylon braided layer is fixedly sleeved on the outer peripheral surface of the aluminum wire braided mesh, a waterproof protective layer is fixedly sleeved on the outer peripheral surface of the nylon braided layer, and a protective sleeve is fixedly sleeved on the outer surface of the waterproof protective layer;
[0007] As a further description of the above technical solution: the elastic metal core is a core wire made of metal or alloy material, which has excellent elasticity and toughness;
[0008] As a further description of the above technical solution: the insulating layer is made of parylene coating material, which has high insulation strength and can effectively form a thin film on a surface with a complex shape;
[0009] As a further description of the above technical solution: the aluminum wire woven mesh is a mesh material woven from aluminum wire, and has significant tensile strength and wear resistance;
[0010] As a further description of the above technical solution: the reinforcing rib is made of steel wire or fiber, which can significantly improve the overall strength of the wire and make it less susceptible to damage when subjected to external force pulling or bending;
[0011] As a further description of the above technical solution: the nylon braided layer is made of nylon yarn, which has high strength and high wear resistance, and can effectively protect the conductor and insulation layer inside the wire from external mechanical damage;
[0012] As a further description of the above technical solution: the waterproof protective layer is made of polyvinyl chloride material, which has good flexibility and wear resistance, can isolate moisture, protect the internal structure of the wire from moisture erosion, and ensure the stable operation of the wire in a humid environment.
[0013] As a further description of the above technical solution: the protective sleeve is made of polyurethane material, which is a polymer with repeating urethane chain segments produced by the reaction of isocyanate and polyol, and has excellent wear resistance.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, the combined use of reinforcing ribs, aluminum wire braided mesh, and nylon braided layer enhances the structural stability of the wire, enabling it to better withstand external forces and thus improving the safety of the wire. The dual combination of aluminum wire braided mesh and nylon braided layer further improves the wire's tensile strength and abrasion resistance, extends its service life, and reduces damage caused by environmental factors, making the wire adaptable to different environments.
[0016] 2. In this utility model, the nylon braided layer effectively improves the insulation performance of the wire, ensuring its stable operation. The waterproof protective layer is made of polyvinyl chloride, which has good flexibility and wear resistance, and can isolate moisture, protecting the internal structure of the wire from water erosion and ensuring the stable operation of the wire in a humid environment. Due to its excellent oil resistance, wear resistance, cold resistance, water resistance, and aging resistance, polyurethane material is characterized by its ability to stably transmit electricity in harsh environments such as oil stains and low temperatures. Attached Figure Description
[0017] Figure 1 This is a three-dimensional schematic diagram of an anti-bending wire proposed in this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of a nylon braided layer for a bending-resistant wire proposed in this utility model.
[0019] Figure 3This is a schematic diagram of the structure of an aluminum wire braided mesh for a bend-resistant wire proposed in this utility model.
[0020] Legend:
[0021] 1. Elastic metal core; 2. Insulation layer; 3. Aluminum wire braided mesh; 4. Reinforcing ribs; 5. Nylon braided layer; 6. Waterproof protective layer; 7. Protective sleeve. 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. 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.
[0023] Reference Figure 1 - Figure 3 This utility model provides an embodiment of an anti-bending wire, comprising an elastic metal core 1, which is made of a high-strength, high-precision elastic material, such as elastic copper wire. This material is made of pure copper with a certain proportion of alloying elements such as nickel, tin, and manganese, possessing very high conductivity and ductility. Due to copper's excellent conductivity, it can improve conductivity efficiency and transmission capacity. Using elastic copper wire as the metal core makes electrical signal transmission more stable. The high conductivity of the elastic metal core 1 ensures the high transmission capacity of the wire, making it suitable for various applications requiring high conductivity. Simultaneously, the elastic metal core 1 has high strength and density, which can significantly improve the tensile strength and wear resistance of the wire, extend its service life, and reduce damage caused by environmental factors. Therefore, this wire can adapt to different environments. An insulation layer 2 is fixedly sleeved on the outer surface of the elastic metal core 1, and the outer periphery of the insulation layer 2... The surface is fixedly fitted with an aluminum wire braided mesh 3, and reinforcing ribs 4 are evenly distributed inside the aluminum wire braided mesh 3. A nylon braided layer 5 is fixedly fitted on the outer periphery of the aluminum wire braided mesh 3. A waterproof protective layer 6 is fixedly fitted on the outer periphery of the nylon braided layer 5. A protective sleeve 7 is fixedly fitted on the outer surface of the waterproof protective layer 6. The elastic metal core 1 is made of metal or alloy material and has excellent elasticity and toughness. The insulation layer 2 is made of parylene as coating and has high insulation strength. It can effectively form a film on complex-shaped surfaces. The protective sleeve 7 is made of polyurethane material. Polyurethane is a polymer with repeating urethane chain segment structural units made by reacting isocyanate and polyol. It has excellent wear resistance.
[0024] Reference Figure 1 - Figure 3The aluminum wire braided mesh 3 is a mesh material woven from aluminum wire, possessing significant tensile strength and abrasion resistance. It not only improves the mechanical strength of the wire but also provides electromagnetic shielding, offering additional comprehensive protection. It prevents wires from being bitten or scratched by small animals, reducing the risk of damage and electrical hazards caused by environmental factors. Furthermore, the aluminum wire braided mesh 3 acts as a protective layer for the wire, preventing oxidation or corrosion and further extending its lifespan. The reinforcing ribs 4, made of steel wire or fiber, significantly enhance the overall strength of the wire, making it less susceptible to damage when subjected to tensile or bending forces. Adding reinforcing ribs 4 inside the wire effectively prevents breakage under excessive stretching or bending. The addition of reinforcing ribs 4 enhances the structural stability of the wire, allowing it to better withstand external forces, thereby improving its performance. To ensure the safety of the wire, the nylon braided layer 5 is made of nylon thread, which has high strength and high wear resistance. It can effectively protect the conductor and insulation layer 2 inside the wire from external mechanical damage. At the same time, the nylon braided layer 5 has good insulation properties, which can prevent leakage of the wire and improve the safety performance of the wire. Especially for wires operating in humid or high-temperature environments, the nylon braided layer 5 can effectively improve the insulation performance of the wire and ensure the stable operation of the wire. The waterproof protective layer 6 is made of polyvinyl chloride material, which has good flexibility and wear resistance. It can isolate moisture and protect the internal structure of the wire from water corrosion, ensuring the stable operation of the wire in humid environments. Due to its excellent oil resistance, wear resistance, cold resistance, water resistance and aging resistance, polyurethane material can stably transmit electricity in harsh environments such as oil pollution and low temperature.
[0025] Working Principle: During production, an elastic metal core 1 made of alloying elements is first tightly wound together. As the core material of the conductor, the elastic metal core 1 has high strength and density, which can significantly improve the tensile strength and wear resistance of the wire, extend its service life, and reduce damage caused by environmental factors. Therefore, the wire can adapt to different environments. Subsequently, a polymer with molten parylene as a coating is injected into the cable through injection molding and formed by mold, creating a precise insulation layer 2 that is fitted onto the surface of the elastic metal core 1. When braiding the aluminum wire mesh 3, reinforcing ribs 4 are evenly distributed in a circular pattern inside the aluminum wire mesh 3. The aluminum wire mesh 3 is then fitted inside the insulation layer 2 to enhance the structural stability of the wire, enabling it to better withstand external forces. This improves the safety of the wire. A nylon braided layer 5 is then fitted over the surface of the aluminum wire braided mesh 3. The combined effect of the aluminum wire braided mesh 3 and the nylon braided layer 5 further enhances the wire's tensile strength. The aluminum wire braided mesh 3 not only improves the wire's mechanical strength but also provides electromagnetic shielding, offering additional comprehensive protection. It prevents the wire from being bitten or scratched by small animals, reducing the risk of wire damage and electrical hazards caused by environmental factors. Simultaneously, the aluminum wire braided mesh 3 also serves as a protective layer for the wire, preventing oxidation or corrosion and further extending its service life. A waterproof protective layer 6 is fixedly fitted onto the outer surface of the nylon braided layer 5, and a protective sleeve 7 is fixedly fitted onto the outer surface of the waterproof protective layer 6, providing protection and waterproofing for the internal wires.
[0026] 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 kink-resistant electrical cord comprising an elastic metal core (1), characterized in that: An insulating layer (2) is fixedly sleeved on the outer surface of the elastic metal core (1). An aluminum wire braided mesh (3) is fixedly sleeved on the outer peripheral surface of the insulating layer (2). Reinforcing ribs (4) are uniformly distributed inside the aluminum wire braided mesh (3). A nylon braided layer (5) is fixedly sleeved on the outer peripheral surface of the aluminum wire braided mesh (3). A waterproof protective layer (6) is fixedly sleeved on the outer peripheral surface of the nylon braided layer (5). A protective sleeve (7) is fixedly sleeved on the outer surface of the waterproof protective layer (6).
2. The kink-resistant electrical cord of claim 1, wherein: The elastic metal core (1) is made of metal or alloy material and has excellent elasticity and toughness.
3. The kink-resistant electrical cord of claim 1, wherein: The insulating layer (2) is made of parylene as a coating material, has high insulation strength, and can effectively form a thin film on surfaces with complex shapes.
4. The kink-resistant electrical cord of claim 1, wherein: The aluminum wire woven mesh (3) is a mesh material woven from aluminum wire, and has significant tensile strength and wear resistance.
5. The kink-resistant electrical cord of claim 1, wherein: The reinforcing rib (4) is made of steel wire or fiber, which can significantly improve the overall strength of the wire, making it less susceptible to damage when subjected to external force pulling or bending.
6. The kink-resistant electrical cord of claim 1, wherein: The nylon braided layer (5) is made of nylon thread and has high strength and high wear resistance, which can effectively protect the conductor and insulation layer (2) inside the wire from external mechanical damage.
7. The kink-resistant electrical cord of claim 1, wherein: The waterproof protective layer (6) is made of polyvinyl chloride material, which has good flexibility and wear resistance, can isolate moisture, protect the internal structure of the wire from water erosion, and ensure the stable operation of the wire in a humid environment.