Compact stranding structure of energy-saving low-consumption aluminum core cable

Abstract

The utility model provides a compact stranded structure of an energy-saving low-consumption aluminum core cable, which relates to the technical field of cables and comprises a cable body, a conductor layer arranged in the cable body, an insulating layer arranged on the outer wall of the conductor layer, a filling layer arranged outside the insulating layer, a reinforcing core arranged in the filling layer and a shielding layer arranged on the outer wall of the filling layer. A tensile layer is arranged outside the shielding layer; according to the utility model, the material of the insulating layer is polyvinyl chloride, so that current leakage can be effectively prevented, the insulating effect of the cable is ensured, and the material of the reinforcing core is steel wires, so that huge tensile force can be borne, and the cable can still keep a complete structure in various severe natural environments. The shielding layer is made of aluminum foil, has good conductivity, can play a role in shielding electromagnetic interference, reduces electromagnetic leakage, and effectively improves the insulativity, tensile resistance and electromagnetic interference resistance of the cable through the arrangement of the insulating layer, the reinforcing core, the shielding layer and the tensile layer.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable technical field especially relates to a compact stranding structure of energy -conserving low -consumption aluminium core cable. BACKGROUND

[0002] A kind of electric energy or signal transmission device of cable, it is generally composed of several or several groups of wires, and with the characteristics of internal power supply, external insulation.Cable can be used to transmit electric (magnetic) energy and information, realize electromagnetic energy conversion. They are widely used in urban underground power grid, power station outgoing line, industrial and mining enterprise internal power supply and cross-river underwater power transmission line etc. field.Cable is various, including power cable, control cable, compensation cable, shielded cable, high temperature cable etc. They are composed of single or multiple wires and insulation layer, for connecting circuit and electrical appliance.

[0003] In prior art, part of aluminium core cable is stranded together with multiple aluminium core wires, so that aluminium core wires inside cable are supported closely with each other, and can be beneficial to current transmission, reduce the loss of electric energy in transmission process, improve power transmission efficiency, but the mechanical strength of aluminium is relatively low, the tensile strength of aluminium core cable after stranding is also inferior to copper core cable, when subjected to large external force pulling, easy to appear fracture and other damage conditions, affect the normal use of cable. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem of the prior art that the mechanical strength of aluminium is relatively low, easy to appear fracture and other damage conditions when subjected to large external force pulling, affect the normal use of cable, and provides a compact stranding structure of energy -conserving low -consumption aluminium core cable.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a compact stranding structure of energy -conserving low -consumption aluminium core cable, including cable body, the conductor layer is arranged in the cable body, the insulating layer is arranged on the outer wall of the conductor layer, the filling layer is arranged outside the insulating layer, the reinforcing core is arranged in the filling layer, the shielding layer is arranged on the outer wall of the filling layer, the tensile layer is arranged outside the shielding layer.

[0006] Preferably, the fireproof layer is arranged between the shielding layer and the tensile layer.

[0007] Preferably, the number of the conductor layer and the insulating layer is three.

[0008] Preferably, the corrosion -resistant layer is arranged on the outer wall of the tensile layer.

[0009] Preferably, the thickness of the shielding layer is 1mm to 2mm, and the thickness of the tensile layer is 2mm to 4mm.

[0010] Preferably, the armored layer is fixedly installed on the outer wall of the corrosion -resistant layer.

[0011] Compared with the prior art, the utility model has the advantages and positive effects that,

[0012] 1、The utility model discloses a cable body, conductor layer, insulating layer, filling layer, reinforcing core, shielding layer, fireproof layer, tensile layer, corrosion -resistant layer and armored layer, and the insulating layer material is polyvinyl chloride, can effectively prevent current leakage, guarantees the insulating effect of cable, and the reinforcing core material is steel wire, can bear huge tensile force, guarantees that cable still can keep structural integrity under various severe natural environment.

[0013] 2、The utility model discloses a cable body, conductor layer, insulating layer, filling layer, reinforcing core, shielding layer, fireproof layer, tensile layer, corrosion -resistant layer and armored layer, and the fireproof layer material is rock wool, has excellent heat -insulating performance, and rock wool can effectively prevent the transfer of heat, plays the role of fire -retardant heat -insulating, and the corrosion -resistant layer material is chlorosulfonated polyethylene, has very strong tolerance, can also resist the erosion of some oxidizing substances, can provide reliable protection for cable, and the armored layer material is glass fiber reinforced plastic, has higher strength and lower density. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 The utility model provides a kind of compact twisted structure of energy-saving low-consumption aluminum core cable whole three-dimensional view;

[0015] Fig. 2 The utility model provides a kind of compact twisted structure of energy-saving low-consumption aluminum core cable whole another perspective three-dimensional view;

[0016] Fig. 3 The utility model provides a kind of compact twisted structure of energy-saving low-consumption aluminum core cable whole cross section layered schematic view.

[0017] Legend: 1, cable body;2, conductor layer;3, insulating layer;4, filling layer;5, reinforcing core;6, shielding layer;7, fireproof layer;8, tensile layer;9, corrosion -resistant layer;10, armored layer. DETAILED DESCRIPTION

[0018] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model will be further described below in conjunction with the drawings and examples. It should be noted that the embodiments of the present application and the features in the examples can be combined with each other without conflict.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Example 1, such as Figs. 1-3 As shown, this utility model provides a compact stranded structure for an energy-saving and low-consumption aluminum core cable, including a cable body 1, a conductor layer 2 inside the cable body 1, an insulation layer 3 on the outer wall of the conductor layer 2, a filling layer 4 on the outside of the insulation layer 3, a reinforcing core 5 inside the filling layer 4, a shielding layer 6 on the outer wall of the filling layer 4, and a tensile layer 8 on the outside of the shielding layer 6.

[0021] The overall effect of Embodiment 1 is as follows: Insulation layer 3 is made of polyvinyl chloride, which effectively prevents current leakage and ensures the insulation effect of the cable; the reinforcing core 5 is made of steel wire, which can withstand huge tensile forces and ensure that the cable can maintain its structural integrity in various harsh natural environments; the shielding layer 6 is made of aluminum foil, which has good conductivity and can shield against electromagnetic interference, reducing electromagnetic leakage; the tensile layer 8 is made of ultra-high molecular weight polyethylene fiber, which has extremely high tensile strength and excellent wear resistance, and can effectively protect the cable. The combination of insulation layer 3, reinforcing core 5, shielding layer 6, and tensile layer 8 effectively improves the cable's insulation, tensile strength, and electromagnetic interference resistance.

[0022] Example 2, as Figs. 1-3 As shown, a fireproof layer 7 is further provided between the shielding layer 6 and the tensile layer 8, which effectively improves the fire resistance of the cable.

[0023] Furthermore, there are three conductor layers 2 and three insulation layers 3. The conductor layer 2 is composed of multiple aluminum stranded wires. The diameter and number of these aluminum stranded wires are determined according to parameters such as the rated current of the cable. The aluminum stranded wires are stranded in a certain stranding direction and stranding pitch, and a compact stranding method is adopted. The spacing between the aluminum cores is reduced. This compact stranding structure of the cable can reduce skin effect loss, thereby improving the power transmission efficiency.

[0024] Furthermore, a corrosion-resistant layer 9 is provided on the outer wall of the tensile layer 8, which effectively improves the corrosion resistance of the cable.

[0025] Furthermore, the shielding layer 6 has a thickness of 1 mm to 2 mm, and the tensile layer 8 has a thickness of 2 mm to 4 mm.

[0026] Furthermore, an armor layer 10 is fixedly installed on the outer wall of the corrosion-resistant layer 9, which effectively improves the cable's protection capability.

[0027] The effect achieved by the whole embodiment 2 is that the fireproof layer 7 is made of rock wool, which has excellent heat insulation performance, and the rock wool can effectively prevent heat transfer and play a role in fireproofing and heat insulation; the corrosion-resistant layer 9 is made of chlorosulfonated polyethylene, which has strong resistance and can resist the corrosion of some oxidizing substances, and can provide reliable protection for the cable; and the armored layer 10 is made of glass fiber reinforced plastic, which has high strength and low density. This makes the cable obtain good mechanical protection and can prevent the cable from being damaged externally. The setting of the fireproof layer 7, the corrosion-resistant layer 9 and the armored layer 10 effectively improves the fireproofing, corrosion resistance and protection capacity of the cable.

[0028] Working principle: The insulating layer 3 is made of polyvinyl chloride, which can effectively prevent current leakage and ensure the insulation effect of the cable, has certain strength and toughness, and can withstand a certain degree of external force impact and extrusion. The filler layer 4 is made of hemp rope filler, and the flexibility and elasticity of the hemp rope make it can well adapt to the space changes inside the cable in the filler layer 4. When the cable is bent, the hemp rope can deform with it and will not cause damage to the aluminum core stranded structure and the insulating layer 3 of the cable. The reinforcing core 5 is made of steel wire, which can withstand huge tensile force, ensure that the cable can still maintain structural integrity in various harsh natural environments, and has low cost. The shielding layer 6 is made of aluminum foil, which has good electrical conductivity and can shield electromagnetic interference, reduce electromagnetic leakage, and has low cost. The fireproof layer 7 is made of rock wool, which has excellent heat insulation performance and can effectively prevent heat transfer and play a role in fireproofing and heat insulation. The tensile layer 8 is made of ultra-high relative molecular mass polyethylene fiber, which has extremely high tensile strength and excellent wear resistance, and can well protect the cable. The corrosion-resistant layer 9 is made of chlorosulfonated polyethylene, which has strong resistance and can resist the corrosion of some oxidizing substances, and can provide reliable protection for the cable. The armored layer 10 is made of glass fiber reinforced plastic, which has high strength and low density. This makes the cable obtain good mechanical protection and can prevent the cable from being damaged externally. The setting of the insulating layer 3, the reinforcing core 5, the shielding layer 6, the fireproof layer 7, the tensile layer 8, the corrosion-resistant layer 9 and the armored layer 10 effectively improves the insulation, tensile resistance, anti-electromagnetic interference capacity, fireproofing, corrosion resistance and protection capacity of the cable.

[0029] The above is only a preferred embodiment of the present application, and does not limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still falls within the protection scope of the technical scheme of the present application.

Claims

1. A compact stranded structure of energy saving and low consumption aluminum core cable comprising a cable body (1), characterized in that: The cable body (1) is internally provided with a conductor layer (2), the outer wall of the conductor layer (2) is provided with an insulation layer (3), the outer part of the insulation layer (3) is provided with a filling layer (4), the inside of the filling layer (4) is provided with a reinforcing core (5), the outer wall of the filling layer (4) is provided with a shielding layer (6), and the outer part of the shielding layer (6) is provided with a tensile layer (8).

2. The compact stranded structure of an energy-saving and low-loss aluminum core cable according to claim 1, characterized in that: The shielding layer (6) and the tensile layer (8) are provided with a fireproof layer (7) therebetween.

3. The compact stranded structure of an energy-saving and low-loss aluminum core cable according to claim 1, characterized in that: The number of the conductor layer (2) and the insulation layer (3) is three.

4. The compact stranding structure of an energy-saving and low-consumption aluminum core cable according to claim 2, characterized in that: The outer wall of the tensile layer (8) is provided with a corrosion-resistant layer (9).

5. The compact stranding structure of an energy-saving and low-loss aluminum core cable according to claim 1, characterized in that: The thickness of the shielding layer (6) is 1mm to 2mm, and the thickness of the tensile layer (8) is 2mm to 4mm.

6. The compact stranding structure of an energy-saving and low-loss aluminum core cable according to claim 4, characterized in that: The outer wall of the corrosion-resistant layer (9) is fixedly installed with an armored layer (10).

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