Anti-fracture high-strength electric wire

Abstract

The utility model relates to an anti-fracture high-strength electric wire comprising a plurality of groups of conductor parts, and a shielding layer, an inner sheath, a first winding part, an outer sheath and a second winding part are sequentially sleeved outside the plurality of groups of conductor parts from inside to outside. The first winding part is a metal wire which is wound along the radial direction of the inner sheath and extends along the length direction of the inner sheath, and the second winding part is an insulating tape which is wound along the radial direction of the outer sheath and extends along the length direction of the outer sheath. Through the arrangement of the second winding part, the damage of the electric wire caused by bending deformation and the like can be reduced in the use process of the electric wire; through the arrangement of the first winding part, fracture damage caused by pulling and the like of the electric wire can be reduced in the use process of the electric wire, and the first winding part can be used for protecting the internal conductor part after the outer sheath and the second winding part are damaged, so that the protection effect on the electric wire can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to an anti-fracture high-strength electric wire. Background Technique

[0002] An electric wire refers to a conductor for transmitting electric energy. It is divided into bare wires, electromagnetic wires and insulated wires. The bare wire has no insulating layer and includes copper and aluminum flat wires, overhead stranded wires and various profiles (such as shaped wires, bus bars, copper bars, aluminum bars, etc.). It is mainly used for outdoor overhead and indoor bus bars and switch boxes.

[0003] The material structures of existing electric wires are roughly the same. The wear resistance of conventional electric wires is poor. During the use of electric wires, they are prone to breakage and damage due to local bending and wear, which will reduce the service strength of the electric wires and make the electric wires unable to adapt to the laying and use in outdoor and other environments, greatly reducing the use range of the electric wires. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] The utility model provides an anti-fracture high-strength electric wire, which solves the problem that the electric wire is prone to breakage and damage during use.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solution: an anti-fracture high-strength electric wire, including a plurality of groups of conductor parts. A shielding layer, an inner sheath, a first winding part, an outer sheath and a second winding part are sequentially sleeved on the outside of the plurality of groups of conductor parts from the inside to the outside. The first winding part is arranged as a metal wire that winds radially around the inner sheath and extends in the length direction of the inner sheath. The second winding part is arranged as an insulating tape that winds radially around the outer sheath and extends in the length direction of the outer sheath.

[0008] Preferably, an insulating layer is further coated on the outside of the conductor part, so that the plurality of groups of conductor parts are insulated from each other and distributed inside the shielding layer.

[0009] More preferably, the anti-fracture high-strength electric wire further includes a plurality of protective pads. The plurality of protective pads are filled in the gaps between the conductor part and the shielding layer, and the protective pads are arranged as elastic rubber pads.

[0010] More preferably, the winding pitch of the metal wire in the first winding part is set to be adapted to the wire diameter of the metal wire, and the winding diameter of the metal wire is adapted to the outer diameter of the inner sheath, so that the metal wire densely covers the outside of the inner sheath.

[0011] Preferably further, the inner sheath and the outer sheath are provided as a polyvinyl chloride sheath or a polypropylene sheath, and the wall thickness of the outer sheath is greater than that of the inner sheath.

[0012] Preferably further, the second winding portion includes an insulating base tape and an adhesive layer. The adhesive layer is disposed to cover one side of the insulating base tape facing the outer sheath, and the insulating base tape wound and covering the outside of the outer sheath is adhesively fixed to the outer sheath by the adhesive layer.

[0013] (III) Advantageous Effects

[0014] Compared with the prior art, the present utility model provides an anti-fracture high-strength electric wire, having the following advantageous effects:

[0015] In the present utility model, through the arrangement of the second winding portion, it is possible to reduce the damage of the electric wire caused by bending deformation and the like during use, thereby effectively improving the safety and service life of the electric wire during use;

[0016] Through the arrangement of the first winding portion, it is possible to reduce the fracture damage of the electric wire caused by pulling and the like during use, and the first winding portion can also be used to protect the internal conductor portion after the outer sheath and the second winding portion are damaged, thereby effectively improving the protection effect on the electric wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of an anti-fracture high-strength electric wire according to an embodiment;

[0018] Figure 2 is Figure 1 a schematic structural diagram of the end face of the anti-fracture high-strength electric wire in

[0019] Figure 3 is a schematic structural diagram of the outer sheath according to an embodiment.

[0020] In the figure: 10, conductor portion; 11, insulating layer; 20, shielding layer; 30, protective pad; 40, inner sheath; 50, first winding portion; 60, outer sheath; 70, second winding portion. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1 to 3, A high-strength anti-break wire may include several groups of conductor parts 10, a shielding layer 20, multiple protective pads 30, an inner sheath 40, a first winding part 50, an outer sheath 60, and a second winding part 70. The shielding layer 20, the inner sheath 40, the first winding part 50, the outer sheath 60, and the second winding part 70 are sequentially sleeved on the outside of the several groups of conductor parts 10 from the inside to the outside, and multiple protective pads 30 are filled in the gaps between the conductor parts 10 and the shielding layer 20.

[0023] In this embodiment, the conductor part 10 can be formed by winding stranded metal wires into a conductive conductor part, or can be made of a single metal rod to form a conductive conductor part, and an insulating layer 11 made of an insulating material can be coated on the outside of the conductor part 10, so that adjacent conductor parts 10 can be insulated from each other and distributed inside the shielding layer 20.

[0024] In this implementation, the protective pad 30 is set as an elastic rubber pad, and the shape of each protective pad 30 is set to correspond to the cross-sectional shape of the gap to be filled, so that the protective pad 30 can fill the gap between the conductor part 10 and the shielding layer 20. And when the wire is subjected to external forces such as extrusion, the protective pad 30 can also be used to protect the conductor part 10 and reduce the fracture of the conductor part 10 caused by external force extrusion.

[0025] In this embodiment, the inner sheath 40 and the outer sheath 60 can be made of protective sleeves such as polyvinyl chloride or polypropylene, and the wall thickness of the outer sheath 60 is greater than that of the inner sheath 40. The inner sheath 40 and the outer sheath 60 provide two layers of protection for the wire to reduce the exposure of the conductor part 10 after the wire is worn.

[0026] In this embodiment, when the metal wire used for the first winding part 50 is wound on the outside of the inner sheath 40, its winding pitch can be preset to be adapted to the wire diameter of the metal wire, and its winding diameter can be preset to be adapted to the outer diameter of the inner sheath 40, so that the first winding part 50 can densely cover the outside of the inner sheath 40, and the first winding part 50 can be used to enhance the anti-tensile fracture ability of the cable, and the first winding part 50 can also be used to protect the inner sheath 40 and the conductor part 10 to improve the overall protection ability of the wire.

[0027] In this embodiment, the second winding part 70 includes an insulating baseband and an adhesive layer. The adhesive layer is covered on the side of the insulating baseband facing the outer sheath 60. The insulating baseband wound and covered on the outside of the outer sheath 60 can be bonded and fixed to the outer sheath 60 by the adhesive layer, so that the second winding part 70 can use the insulating baseband to reduce the wear of the outer sheath 60 and the exposure of the fracture part.

[0028] In all the solutions mentioned above, although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fracture-resistant high-strength electric wire, comprising a plurality of conductor parts (10), characterized in that: A shielding layer (20), an inner sheath (40), a first winding part (50), an outer sheath (60) and a second winding part (70) are sequentially sheathed on the outside of the plurality of groups of conductor parts (10) from the inside to the outside. The first winding part (50) is configured as a metal wire radially wound around the inner sheath (40) and extending in the length direction of the inner sheath (40). The second winding part (70) is configured as an insulating tape radially wound around the outer sheath (60) and extending in the length direction of the outer sheath (60).

2. The anti-fracture high-strength electric wire according to claim 1, characterized in that: The outer side of the conductor part (10) is also covered with an insulating layer (11), so that a plurality of groups of the conductor parts (10) are insulated from each other and distributed inside the shielding layer (20).

3. The anti-fracture high-strength electric wire according to claim 1, characterized in that: It also comprises a plurality of protective pads (30), which are filled in the gap between the conductor part (10) and the shielding layer (20), and the protective pads (30) are configured as elastic rubber pads.

4. The anti-fracture high-strength electric wire according to any one of claims 1 to 3, characterized in that: The winding pitch of the metal wire in the first winding portion (50) is set to match the wire diameter of the metal wire, and the winding diameter of the metal wire is matched to the outer diameter of the inner sheath (40), so that the metal wire is densely covered on the outside of the inner sheath (40).

5. The anti-fracture high-strength electric wire according to any one of claims 1 to 3, characterized in that: The second winding portion (70) comprises an insulating base tape and an adhesive layer, wherein the adhesive layer is arranged on a side of the insulating base tape facing the outer sheath (60), and the insulating base tape wrapped around the outer side of the outer sheath (60) is bonded and fixed to the outer sheath (60) by the adhesive layer.

6. The anti-fracture high-strength electric wire according to claim 1, characterized in that: The inner sheath (40) and the outer sheath (60) are configured as polyvinyl chloride sheaths or polypropylene sheaths, and the wall thickness of the outer sheath (60) is greater than the wall thickness of the inner sheath (40).

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