Irradiation crosslinked polyethylene wire cable

Abstract

The invention relates to the technical field of wires and cables, and discloses an irradiation crosslinked polyethylene wire and cable which comprises a reinforcing layer and a splicing assembly, a plurality of cable bodies are installed in the reinforcing layer, an insulating layer is arranged outside the reinforcing layer, a waterproof layer is arranged outside the insulating layer, a shielding layer is arranged outside the waterproof layer, and the splicing assembly is arranged on the shielding layer. An outer protection layer is arranged outside the shielding layer; the plurality of cable bodies are installed in the reinforcing layer, structural support is provided for the cable, the tensile resistance and the extrusion resistance of the cable are enhanced, the mechanical performance stability of the cable in a complex environment is ensured, the cable is sequentially wrapped by the insulating layer, the waterproof layer, the shielding layer and the outer protective layer, the layers are clear in division of labor, and the service life of the cable is prolonged. The insulation, waterproof, anti-electromagnetic interference, external damage prevention and other performances of the cable are jointly guaranteed, and the comprehensive protection capability of the cable is improved.

Description

Technical Field

[0001] The present application relates to the technical field of wires and cables, and in particular to a radiation cross-linked polyethylene wire and cable. Background Art

[0002] In today's power and communications fields, wires and cables, as indispensable basic components, are widely used in various scenarios, from residential power supply to complex industrial facilities, to the energy transmission of high-speed communication network signal transmission. The quality of their performance and functions directly affects the stability and reliability of the entire system.

[0003] With respect to the above-mentioned related technologies, the inventors believe that with the continuous development of various industries, the performance requirements for wires and cables are becoming increasingly diversified and more stringent. On the one hand, the existing cables in the prior art are used in complex and changeable environments, such as humid underground pipe corridors, near substations with strong electromagnetic interference, and construction sites that are easily damaged by external forces. On the other hand, in actual engineering applications, it is often necessary to flexibly adjust the cable length according to the specific environment and needs. This puts high demands on the convenience of cable splicing and the performance stability after splicing. Traditional cables are difficult to meet the above requirements and have defects. Therefore, the technicians in this field provide a radiation cross-linked polyethylene wire and cable to solve the problems raised in the above background technology. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present application provides a radiation cross-linked polyethylene wire and cable.

[0005] The irradiated cross-linked polyethylene wire and cable provided in this application adopts the following technical solution:

[0006] A radiation cross-linked polyethylene wire and cable comprises a reinforcement layer and a splicing assembly, wherein a plurality of cable bodies are installed inside the reinforcement layer, an insulating layer is arranged outside the reinforcement layer, a waterproof layer is arranged outside the insulating layer, a shielding layer is arranged outside the waterproof layer, and an outer sheath is arranged outside the shielding layer.

[0007] Preferably, the splicing assembly includes a rack ring opened on the inner wall of the waterproof layer, and a circle is opened on the outside of the insulating layer on the side of the insulating layer away from the rack ring for the rack ring to be snapped into the rack groove, a connector is provided at one end of the cable body, and a socket for electrical connection of the connector is provided at the other end of the cable body.

[0008] Preferably, the insulating layer is made of radiation cross-linked polyethylene material.

[0009] Preferably, the waterproof layer is made of thermoplastic polyurethane elastomer material.

[0010] Preferably, the shielding layer is composited from copper tape and aluminum foil.

[0011] Preferably, the outer protective layer is made of modified polyvinyl chloride (PVC) material.

[0012] Preferably, the exterior of the connector is coated with a conductive coating.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. Multiple cable bodies are installed inside the reinforcement layer to provide structural support for the cable, enhance its tensile and extrusion resistance, and ensure the stability of the cable's mechanical properties in complex environments. It is wrapped in sequence by an insulating layer, a waterproof layer, a shielding layer, and an outer sheath. Each layer has a clear division of labor, which jointly ensures the cable's insulation, waterproofing, anti-electromagnetic interference, and anti-external damage properties, thereby improving the cable's comprehensive protection capabilities.

[0015] 2. Through the cooperation of the rack ring and the rack groove, the cables can be quickly positioned when spliced ​​and a certain mechanical connection strength can be provided to prevent the spliced ​​parts from rotating or dislocating; the connector and the jack realize the rapid electrical connection between the cable bodies. The two work together to simplify the splicing operation and improve the splicing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a first overall structural schematic diagram of an irradiated cross-linked polyethylene wire and cable of the present invention;

[0017] Figure 2 It is a second overall structural schematic diagram of an irradiated cross-linked polyethylene wire and cable of the present invention;

[0018] Figure 3 It is a third overall structural schematic diagram of an irradiated cross-linked polyethylene wire and cable of the present invention;

[0019] Figure 4 It is a fourth overall structural schematic diagram of an irradiated cross-linked polyethylene wire and cable of the present invention;

[0020] Figure 5 yes Figure 1 A schematic diagram of the structure enlargement in the middle;

[0021] Figure 6 yes Figure 2 Enlarged schematic diagram of the structure at point B in the middle.

[0022] Explanation of the accompanying drawings: 1. Reinforcement layer; 2. Cable body; 3. Insulation layer; 4. Waterproof layer; 5. Shielding layer; 6. Outer sheath; 7. Rack ring; 8. Rack groove; 9. Connector; 10. Socket; 11. Conductive coating. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-6 This application is described in further detail.

[0024] The present application embodiment discloses an irradiated cross-linked polyethylene wire and cable. Figure 1-6 , including a reinforcement layer 1 and a splicing component. The main function of the reinforcement layer 1 is to provide mechanical support for the entire cable and enhance its structural strength. It contains a number of cable bodies 2 to ensure that the cable bodies 2 can maintain a relatively stable position relationship under various environments, such as stretching, bending, extrusion, etc., to avoid damage to the cable bodies 2 due to external forces and to ensure the normal performance of the cable. For example, during the laying of the cable, it may be subjected to a certain tensile force. The reinforcement layer 1 can withstand this tensile force to prevent the cable body 2 from being broken. It is the core part of the cable. The cable body 2 is responsible for transmitting electrical energy or signals. The cable bodies 2 of different specifications and uses have a number of cable bodies 2 installed inside the reinforcement layer 1. The internal conductor structure and insulating materials thereof may be different, but in this cable, they are integrated inside the reinforcement layer 1 and work together to realize the basic functions of the cable. An insulating layer 3 is arranged outside the reinforcement layer 1. Its main function is to electrically isolate the cable body 2 from the external environment to prevent current leakage. , ensuring the stable transmission of electric energy or signals in the cable body 2, it can effectively prevent the external electric field from interfering with the electric signal in the cable body 2, and also prevent the current of the cable body 2 from affecting the surrounding environment. A waterproof layer 4 is arranged outside the insulating layer 3 to prevent moisture from invading the inside of the cable. Once moisture enters the cable, it may cause problems such as degradation of the performance of the insulating layer 3 and corrosion of the conductor of the cable body 2, thereby affecting the normal operation of the cable. The waterproof layer 4 is like a barrier, blocking moisture from the outside to ensure a dry environment inside the cable. A shielding layer 5 is arranged outside the waterproof layer 4, which is used to shield the electromagnetic interference from the outside to ensure that the signal transmitted inside the cable is not affected by the electromagnetic field from the outside. At the same time, it can also prevent the electromagnetic signal generated inside the cable from leaking to the outside, avoiding interference with other surrounding electronic devices. In some areas with complex electromagnetic environments, such as near substations, the shielding layer 5 can effectively ensure the signal transmission quality of the cable. An outer sheath 6 is arranged outside the shielding layer 5, which is in direct contact with the external environment. It mainly plays the role of protecting the internal structures of each layer, preventing physical damage from the outside, such as friction, scratching, collision, etc., and can also resist the damage of environmental factors such as chemical corrosion and ultraviolet radiation to the cable to a certain extent, extending the service life of the cable.

[0025] Reference Figure 1 , Figure 2 , Figure 5 and Figure 6The splicing assembly includes a rack ring 7 opened on the inner wall of the waterproof layer 4, and a circle of the rack ring 7 is opened on the outside of the insulating layer 3 on the side of the insulating layer 3 away from the rack ring 7 for the rack ring 7 to be clamped into the rack groove 8. One end of the cable body 2 is provided with a connector 9, and the other end of the cable body 2 is provided with a jack 10 for electrical connection of the connector 9. When two cables need to be spliced, the rack ring 7 of one cable can be accurately inserted into the rack groove 8 of the other cable. This design is similar to the meshing principle of gears. Through the close cooperation between the rack ring 7 and the rack groove 8, not only can the two cables be accurately positioned in the radial direction to ensure the accurate docking of the internal layers of the cable, but also a certain mechanical connection strength can be provided to enhance the stability of the splicing part to prevent the cables from rotating or dislocating relative to each other due to external force after splicing. During the cable splicing process, the connector 9 can be inserted into the jack 10 of another cable to achieve electrical connection between the two cable bodies 2. This design makes the electrical connection of the cables simple and direct, ensuring that electrical energy or signals can be smoothly transmitted from one cable to another. At the same time, the cooperation between the connector 9 and the jack 10 also helps to further fix the relative position of the two cables, and works together with the rack ring 7 and the rack groove 8 to improve the reliability of the splicing part.

[0026] Reference Figure 5 and Figure 6 The insulation layer 3 is made of irradiated cross-linked polyethylene material. Under high temperature environment, ordinary polyethylene material may become soft or even melt, resulting in a decrease in insulation performance. However, due to its cross-linked structure, the irradiated cross-linked polyethylene material can maintain stable physical and electrical properties at higher temperatures, ensuring that the cable can reliably achieve insulation function within various operating temperature ranges, effectively preventing current leakage and ensuring the safe operation of the cable.

[0027] Reference Figure 5 and Figure 6 The waterproof layer 4 is made of thermoplastic polyurethane elastomer TPU material, which has excellent waterproof performance. Its molecular structure makes it have good density and can effectively block the penetration of water. At the same time, TPU material also has certain elasticity and flexibility, which makes the waterproof layer 4 not easily broken when the cable is bent or deformed to a certain extent, and always maintains a good waterproof effect.

[0028] Reference Figure 5 and Figure 6The shielding layer 5 is composed of copper tape and aluminum foil. The copper tape has good electrical conductivity and electromagnetic shielding performance, and can effectively block low-frequency electromagnetic interference. It is wrapped around the outside of the waterproof layer 4 in a spiral or overlapping manner to form a continuous conductive shielding layer. The aluminum foil is light, flexible, and has a good shielding effect on high-frequency electromagnetic interference. It fits tightly with the copper tape, further enhancing the shielding ability of high-frequency electromagnetic signals.

[0029] Reference Figure 5 and Figure 6 The outer sheath 6 is made of modified polyvinyl chloride (PVC) material. The modified polyvinyl chloride (PVC) material is optimized by adding specific additives and undergoing modification treatment, making it more suitable as the outer sheath of the cable. It has high strength and wear resistance, and can resist external physical damage such as friction, scratches and collisions. For example, during the cable laying process, the outer sheath 6 may come into contact with objects such as the ground and walls. The modified PVC material can effectively prevent the outer sheath 6 from being worn and protect the internal structures.

[0030] Reference Figure 2 and Figure 6 The outside of the connector 9 is coated with a conductive coating 11. When the connector 9 is inserted into the jack 10, the conductive coating 11 can fill these microscopic gaps, allowing the current to pass through the connection more smoothly, reducing power loss, and reducing the heat generated by excessive resistance in the connection. The electrical performance and reliability of the cable splicing are improved, ensuring the stable transmission of power or signals at the connection.

[0031] The implementation principle of the irradiated cross-linked polyethylene wire and cable in the embodiment of the present application is as follows: when two cables need to be spliced, the rack ring 7 of one cable can be accurately inserted into the rack groove 8 of the other cable. This design is similar to the meshing principle of gears. Through the close cooperation between the rack ring 7 and the rack groove 8, not only can the two cables be accurately positioned in the radial direction to ensure the accurate docking of the internal structures of the cables, but also a certain mechanical connection strength can be provided to enhance the stability of the spliced ​​parts and prevent the cables from relative rotation or dislocation due to external forces after splicing. During the cable splicing process, the connector 9 can be inserted into the jack 10 of another cable to realize the electrical connection between the two cable bodies 2. This design The design makes the splicing of cables simple and direct in terms of electrical connection, ensuring that electrical energy or signals can be smoothly transmitted from one cable to another. At the same time, the cooperation between the connector 9 and the jack 10 also helps to further fix the relative positions of the two cables, and works together with the rack ring 7 and the rack groove 8 to improve the reliability of the splicing part. When the connector 9 is inserted into the jack 10, the conductive coating 11 can fill these microscopic gaps, so that the current can pass through the connection part more smoothly, reduce power loss, and reduce the heating phenomenon caused by excessive resistance in the connection part, thereby improving the electrical performance and reliability of the cable splicing and ensuring the stable transmission of electrical energy or signals at the connection part. The insulating layer 3 is made of irradiated cross-linked polyethylene material. Under high temperature conditions, ordinary polyethylene materials can The irradiated cross-linked polyethylene material can soften or even melt, resulting in a decrease in insulation performance. Due to its cross-linked structure, it can maintain stable physical and electrical properties at higher temperatures, ensuring that the cable can reliably achieve insulation function within various operating temperature ranges, effectively preventing current leakage, and ensuring the safe operation of the cable. The waterproof layer 4 is made of thermoplastic polyurethane elastomer TPU material. The thermoplastic polyurethane elastomer TPU material has excellent waterproof performance. Its molecular structure gives it good density and can effectively block the penetration of water. At the same time, the TPU material also has a certain elasticity and flexibility, which makes the waterproof layer 4 not easily rupture when the cable is bent or subjected to a certain degree of deformation, and always maintains a good waterproof effect. The shielding layer 5 is made of copper tape and The copper tape has good electrical conductivity and electromagnetic shielding performance, and can effectively block low-frequency electromagnetic interference. It is wrapped around the waterproof layer 4 in a spiral or overlapping manner to form a continuous conductive shielding layer. The aluminum foil is light, flexible and has a good shielding effect on high-frequency electromagnetic interference. It fits tightly with the copper tape, further enhancing the shielding ability of high-frequency electromagnetic signals. The outer sheath 6 adopts modified polyvinyl chloride PVC material. The modified polyvinyl chloride PVC material is optimized by adding specific additives and performing modification treatment. It is more suitable as the outer sheath 6 of the cable. It has high strength and wear resistance and can resist external physical damage such as friction, scratches and collisions. For example, during the cable laying process,The outer sheath 6 may come into contact with the ground, walls and other objects. The modified PVC material can effectively prevent the outer sheath 6 from being worn and protect the internal layers.

[0032] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0033] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0034] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An irradiated cross-linked polyethylene wire and cable, comprising a reinforcement layer (1) and a splicing assembly, characterized in that: A plurality of cable bodies (2) are installed inside the reinforcement layer (1), an insulation layer (3) is arranged outside the reinforcement layer (1), a waterproof layer (4) is arranged outside the insulation layer (3), a shielding layer (5) is arranged outside the waterproof layer (4), and an outer protective layer (6) is arranged outside the shielding layer (5).

2. The irradiated cross-linked polyethylene wire and cable according to claim 1, characterized in that: The splicing assembly comprises a rack ring (7) provided on the inner wall of the waterproof layer (4); a ring is provided on the outside of the insulating layer (3) on the side of the insulating layer (3) away from the rack ring (7) for the rack ring (7) to be snapped into the rack groove (8); a connector (9) is provided at one end of the cable body (2); and a socket (10) is provided at the other end of the cable body (2) for electrical connection of the connector (9).

3. The irradiated cross-linked polyethylene wire and cable according to claim 1, characterized in that: The insulating layer (3) is made of radiation cross-linked polyethylene material.

4. The irradiated cross-linked polyethylene wire and cable according to claim 1, characterized in that: The waterproof layer (4) is made of thermoplastic polyurethane elastomer material.

5. The irradiated cross-linked polyethylene wire and cable according to claim 1, characterized in that: The shielding layer (5) is composited from copper tape and aluminum foil.

6. The irradiated cross-linked polyethylene wire and cable according to claim 1, characterized in that: The outer protective layer (6) is made of modified polyvinyl chloride material.

7. The irradiated cross-linked polyethylene wire and cable according to claim 2, characterized in that: The exterior of the connector (9) is coated with a conductive coating (11).

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