Anti-siphon wire

Abstract

The utility model relates to the technical field of cables, and discloses an anti-siphon wire, the outer side of a cell is sequentially provided with an inner waterproof layer, a hemp fiber composite waterproof rope, an outer waterproof layer and a wire sheath from inside to outside, after the hemp fiber composite waterproof rope is heated to expand, the inner waterproof layer is tightly attached to the cell, and the outer waterproof layer is tightly attached to the wire sheath. And after the hemp fiber composite water-blocking rope is heated to expand, the waterproofness of the hemp fiber composite water-blocking rope cannot be changed, and the space generated by the expansion of the hemp fiber composite water-blocking rope is automatically filled through the epoxy resin filled in the hemp fiber composite water-blocking rope, so that the waterproofness of the hemp fiber composite water-blocking rope is ensured, the layering of the waterproof layer of the wire in a high-temperature environment is prevented, and the service life of the wire is prolonged. And the high-temperature waterproof performance of the anti-siphon wire is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to an anti-siphoning electric wire. Background Art

[0002] The purpose of cable anti-siphonage is to prevent external moisture from being sucked back into instruments or equipment through the gaps between the outer and inner sheaths of external cables or the gaps between the inner sheath copper wires, which not only easily leads to conductor oxidation, but also easily creates a fire hazard.

[0003] When the existing anti-siphonage electric wire is in use, when the temperature of the cable use environment is high, delamination is easily generated between the waterproof layers of the cable, which affects the anti-siphonage effect of the wire. Utility Model Content

[0004] The utility model aims to provide an anti-siphoning electric wire to solve the problem in the background art that when the temperature of the cable is high, the waterproof layers of the cable are prone to delamination.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-siphonage electric wire, comprising: an electric wire sheath and a battery core, wherein the outer side of the battery core is provided with an inner water-blocking layer, a hemp fiber composite water-blocking rope, an outer water-blocking layer and an electric wire sheath in sequence from the inside to the outside.

[0006] Furthermore, the inner water-resistance layer is made of polyvinyl chloride, cross-linked polyolefin, silicone rubber or fluoroplastic, and a conductive water-resistance paste is coated between the inner water-resistance layer and the battery core.

[0007] Furthermore, the hemp fiber composite water-blocking rope is a hemp fiber composite material, and the hemp fiber composite water-blocking rope is formed by twisting a plurality of strands, and the twisting direction is left-handed or right-handed.

[0008] Furthermore, the outer water-blocking layer is made of polyvinyl chloride, cross-linked polyolefin, silicone rubber or fluoroplastic, and glue is coated between the outer water-blocking layer and the outer sheath of the wire.

[0009] Furthermore, epoxy resin is filled in the gap between the outer water-blocking layer and the inner water-blocking layer and in the hemp fiber composite water-blocking rope.

[0010] Furthermore, the outer sheath of the wire is made of halogen-free, low-smoke, flame-retardant polyolefin material.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model realizes that when the anti-siphoning electric wire is used in a high temperature environment, the hemp fiber composite water-blocking rope will expand due to heat, and the expansion coefficient of the hemp fiber composite water-blocking rope is much larger than that of the outer water-blocking layer and the inner water-blocking layer, so that after the hemp fiber composite water-blocking rope is expanded due to heat, the inner water-blocking layer is closely attached to the battery core, and the outer water-blocking layer is closely attached to the outer sheath of the electric wire, and after the hemp fiber composite water-blocking rope is expanded due to heat, its own waterproof property will not change, and the space generated by the expansion of the hemp fiber composite water-blocking rope is automatically filled by the epoxy resin filled inside, thereby ensuring the waterproof property of the hemp fiber composite water-blocking rope, thereby preventing the waterproof layer of the electric wire from being delaminated in a high temperature environment, and ensuring the high temperature waterproof property of the anti-siphoning electric wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of an anti-siphoning wire of the utility model;

[0014] Figure 2 This is a main cross-sectional view of an anti-siphoning wire of the utility model;

[0015] Figure 3 It is an enlarged schematic diagram of the left section of an anti-siphoning electric wire of the utility model.

[0016] In the figure: 1-wire sheath; 2-external water-blocking layer; 3-hemp fiber composite water-blocking rope; 4-inner water-blocking layer; 5-battery core. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] See also Figure 1-Figure 3 The utility model provides a technical solution: an anti-siphoning electric wire, comprising: an electric wire sheath 1 and a battery core 5, characterized in that: an inner water-blocking layer 4, a hemp fiber composite water-blocking rope 3, an outer water-blocking layer 2 and an electric wire sheath 1 are sequentially arranged on the outer side of the battery core 5 from the inside to the outside. When the electric wire is used in a high temperature environment, the hemp fiber composite water-blocking rope 3 will expand due to heat, and the expansion coefficient of the hemp fiber composite water-blocking rope 3 is much greater than the outer water-blocking layer 2 and the inner water-blocking layer 4, so that after the hemp fiber composite water-blocking rope 3 is expanded due to heat, the inner water-blocking layer 4 is closely attached to the battery core 5, and the outer water-blocking layer 2 is closely attached to the electric wire sheath 1, and after the hemp fiber composite water-blocking rope 3 is expanded due to heat, its own waterproof property will not change, and the space generated by the expansion of the hemp fiber composite water-blocking rope 3 is automatically filled by the epoxy resin filled inside, thereby ensuring the waterproof property of the hemp fiber composite water-blocking rope 3.

[0019] The inner water-resistance layer 4 is made of polyvinyl chloride, cross-linked polyolefin, silicone rubber or fluoroplastic, and conductive water-resistance paste is coated between the inner water-resistance layer 4 and the battery core 5 to increase the bonding ability between the inner water-resistance layer 4 and the battery core 5 .

[0020] The hemp fiber composite water-blocking rope 3 is a hemp fiber composite material. The hemp fiber composite water-blocking rope 3 is formed by twisting a plurality of strands, and the twisting direction is left or right, so that after the hemp fiber composite water-blocking rope 3 expands due to heat, it can evenly apply pressure to the outer water-blocking layer 2 and the inner water-blocking layer 4 to prevent their stratification.

[0021] The outer water-blocking layer 2 is made of polyvinyl chloride, cross-linked polyolefin, silicone rubber or fluoroplastic, and glue is applied between the outer water-blocking layer 2 and the wire sheath 1 to increase the bonding ability between the outer water-blocking layer 2 and the wire sheath 1 .

[0022] The gaps between the outer water-blocking layer 2 and the inner water-blocking layer 4 and located in the hemp fiber composite water-blocking ropes 3 are filled with epoxy resin to fill the gaps between the hemp fiber composite water-blocking ropes 3 .

[0023] The wire sheath 1 is made of halogen-free, low-smoke, flame-retardant polyolefin material.

[0024] Working principle: When the anti-siphonage wire is used, when the wire is used in a high temperature environment, the hemp fiber composite water-blocking rope 3 will expand due to heat, and the expansion coefficient of the hemp fiber composite water-blocking rope 3 is much larger than the outer water-blocking layer 2 and the inner water-blocking layer 4, so that after the hemp fiber composite water-blocking rope 3 expands due to heat, the inner water-blocking layer 4 is close to the battery core 5, and the outer water-blocking layer 2 is close to the outer sheath 1 of the wire. After the hemp fiber composite water-blocking rope 3 expands due to heat, its own waterproofness will not change. The epoxy resin filled inside it will automatically fill the space created by the expansion of the hemp fiber composite water-blocking rope 3 to ensure the waterproof performance of the hemp fiber composite water-blocking rope 3, thereby preventing the waterproof layer of the wire from stratifying in a high temperature environment and ensuring the high-temperature waterproof performance of the anti-siphonage wire.

[0025] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. An anti-siphoning electric wire, comprising: The invention relates to a wire sheath (1) and a battery core (5), characterized in that the outer side of the battery core (5) is provided with an inner water-blocking layer (4), a hemp fiber composite water-blocking rope (3), an outer water-blocking layer (2) and a wire sheath (1) in sequence from the inside to the outside.

2. The anti-siphoning wire according to claim 1, characterized in that: The inner water-resistance layer (4) is made of polyvinyl chloride, cross-linked polyolefin, silicone rubber or fluoroplastic, and a conductive water-resistance paste is coated between the inner water-resistance layer (4) and the battery core (5).

3. The anti-siphoning wire according to claim 1, characterized in that: The hemp fiber composite water-blocking rope (3) is a hemp fiber composite material, and the hemp fiber composite water-blocking rope (3) is formed by twisting a plurality of strands, and the twisting direction is left-handed or right-handed.

4. The anti-siphoning wire according to claim 1, characterized in that: The material of the outer water-blocking layer (2) is polyvinyl chloride, cross-linked polyolefin, silicone rubber or fluoroplastic, and glue is applied between the outer water-blocking layer (2) and the outer sheath (1) of the electric wire.

5. The anti-siphoning wire according to claim 1, characterized in that: The gap between the outer water-blocking layer (2) and the inner water-blocking layer (4) and located in the hemp fiber composite water-blocking rope (3) is filled with epoxy resin.

6. The anti-siphoning electric wire according to claim 1, characterized in that: The wire sheath (1) is made of halogen-free, low-smoke, flame-retardant polyolefin material.

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