High-flame-retardancy insulated single-core wire

Abstract

The utility model relates to the technical field of single-core wires, and discloses a high-flame-retardant insulating single-core wire, which comprises an outer protective layer, a plurality of flame-retardant bubbles are uniformly arranged in the outer protective layer, a plurality of partition plates are fixedly connected in the outer protective layer, flame-retardant cotton is arranged in the outer protective layer, and the partition plates are fixedly connected in the outer protective layer. A plurality of base plates are arranged in the flame-retardant cotton, an inner rubber layer is fixedly connected to the sides, away from the flame-retardant cotton, of the base plates, a hollow layer is arranged in the side, close to the flame-retardant cotton, of the inner rubber layer, a conduction assembly is fixedly connected to the interior of the inner rubber layer, and the conduction assembly comprises an insulating layer and a conduction wire. The conduction wire is fixedly connected to the interior of the insulating layer, and the insulating layer is fixedly connected to the interior of the inner rubber layer. According to the utility model, the single-core wire avoids the problem that the internal power supply cannot be realized because an external fire point spreads to the internal part in the use process.

Description

Technical Field

[0001] The utility model relates to the technical field of single-core wires, in particular to a highly flame-retardant insulated single-core wire. Background Art

[0002] Single-core means that there is only one conductor in one insulation layer. When the voltage exceeds 35kV, most of them use single-core cables. The relationship between its core and metal shielding layer can be regarded as the relationship between the coil and the iron core in the primary winding of a transformer. When current passes through the core of the single-core cable, magnetic lines of force will intersect the aluminum sheath or metal shielding layer, causing an induced voltage at both ends. However, some existing single-core wires cannot perform well in flame retardant against external fires during use. When a fire occurs externally, the internal wires are easily broken, resulting in the inability to operate normally. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a highly flame-retardant insulated single-core wire, aiming to improve the problem that the prior art cannot provide good flame retardancy against external fires.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A highly flame-retardant insulated single-core wire comprises an outer protective layer, a plurality of flame-retardant bubbles are evenly arranged inside the outer protective layer, a plurality of partitions are fixedly connected inside the outer protective layer, flame-retardant cotton is arranged inside the outer protective layer, a plurality of pads are arranged inside the flame-retardant cotton, an inner rubber layer is fixedly connected on one side of the plurality of pads away from the flame-retardant cotton, a hollow layer is arranged inside the inner rubber layer on the side close to the flame-retardant cotton, and a conductive component is fixedly connected inside the inner rubber layer.

[0006] Furthermore, the conductive component includes an insulating layer and a conductive wire, the conductive wire is fixedly connected to the inside of the insulating layer, and the insulating layer is fixedly connected to the inside of the inner rubber layer.

[0007] Furthermore, fire-fighting foam is arranged inside the flame-retardant bubble, and the flame-retardant bubble is arranged inside the flame-retardant cotton.

[0008] Furthermore, one side of the flame retardant cotton is in contact with the outer protective layer, and the other side of the flame retardant cotton is in contact with the backing plate.

[0009] Furthermore, one side of the pad is fixedly connected to the inside of the flame-retardant cotton, and the other side of the pad is fixedly connected to the inside of the inner rubber layer.

[0010] Furthermore, the flame retardant foam is in contact with the hollow layer.

[0011] The utility model has the following beneficial effects:

[0012] 1. In the utility model, the flame retardant cotton, the hollow layer, the partition, the inner rubber layer and other structures are used in combination to prevent the problem of the external fire point spreading to the inside and causing the internal power supply failure during the use of the single core wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a cross-sectional view of the outer protective layer structure of a highly flame-retardant insulated single-core wire proposed by the utility model;

[0014] Figure 2 The utility model provides a cross-sectional view of the inner rubber layer structure of a highly flame-retardant insulating single-core wire.

[0015] Legend:

[0016] 1. Outer protective layer; 2. Flame retardant foam; 3. Partition; 4. Flame retardant cotton; 5. Pad; 6. Hollow layer; 7. Inner rubber layer; 8. Insulation layer; 9. Conducting wire. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Reference Figure 1-2 The utility model provides an embodiment: a highly flame-retardant insulated single-core wire, comprising an outer protective layer 1, wherein a plurality of flame-retardant bubbles 2 are evenly arranged inside the outer protective layer 1, wherein the flame-retardant bubbles 2 are designed to extinguish the fire point after the outer protective layer 1 contacts the fire, while isolating the single-core wire from contacting the fire point, thereby forming protection, wherein a plurality of partitions 3 are fixedly connected inside the outer protective layer 1, wherein the partitions 3 are designed to support the flame-retardant bubbles 2 to prevent the single-core wire from being squeezed inside the outer protective layer 1 and breaking up autonomously, wherein the outer protective layer 1 is provided with flame-retardant cotton 4, and the flame-retardant The cotton 4 is designed to be able to protect the inner rubber layer 7 after the flame retardant foam 2 is used up. A plurality of pads 5 are arranged inside the flame retardant cotton 4. The pads 5 are designed to support an insulating layer between the flame retardant cotton 4 and the inner rubber layer 7 to prevent the external flame retardant cotton 4 from burning the internal inner rubber layer 7 during the flame retardant process. The inner rubber layer 7 is fixedly connected to the side of the plurality of pads 5 away from the flame retardant cotton 4. A hollow layer 6 is arranged inside the inner rubber layer 7 on the side close to the flame retardant cotton 4. The hollow layer 6 is designed to prevent external heat from being conducted into the interior. A conduction component is fixedly connected to the interior of the inner rubber layer 7.

[0019] The conducting component includes an insulating layer 8 and a conducting wire 9. The conducting wire 9 is fixedly connected to the inside of the insulating layer 8, and the insulating layer 8 is fixedly connected to the inside of the inner rubber layer 7. This design is to maintain internal operating stability.

[0020] Fire-fighting foam is arranged inside the flame-retardant bubble 2, and the flame-retardant bubble 2 is arranged inside the flame-retardant cotton 4. One side of the flame-retardant cotton 4 is in contact with the outer protective layer 1, and the other side of the flame-retardant cotton 4 is in contact with the pad 5. This design is to maintain the stability of the flame-retardant cotton 4 through the support of the pad 5. One side of the pad 5 is fixedly connected to the inside of the flame-retardant cotton 4, and the other side of the pad 5 is fixedly connected to the inside of the inner rubber layer 7. The flame-retardant bubble 2 is in contact with the hollow layer 6. This design is to prevent the flame-retardant bubble 2 from self-fragmentation.

[0021] Working principle: when a fire occurs externally during the use of a single-core wire, the fire point burns the single-core wire and contacts the fire point through the outer protective layer 1. During the contact process, the outer protective layer 1 melts to expose the flame retardant bubble 2 inside the outer protective layer 1, causing the flame retardant bubble 2 to break and spread through the fireproof material inside the flame retardant bubble 2 to contact the fire point of the outer protective layer 1, and protect the single-core wire through the spread. When the material in the flame retardant bubble 2 is used up and the fire point still contacts the single-core wire, the internal inner rubber layer 7, the insulating layer 8, and the conductive wire 9 are isolated from the fire point through the exposure of the flame retardant cotton 4. If the flame retardant cotton 4 is also damaged, the hollow layer 6 supported by the pad 5 between the flame retardant cotton 4 and the inner rubber layer 7 can reduce the damage to the internal inner rubber layer 7, the insulating layer 8, and the conductive wire 9 caused by the external temperature, thereby achieving a flame retardant effect. This design enables the device as a whole to better reflect the flame retardant function in a fire to prevent the external fire from causing the internal normal operation.

[0022] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. 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.

Claims

1. A highly flame-retardant insulated single-core wire, comprising an outer protective layer (1), characterized in that: A plurality of flame retardant bubbles (2) are evenly arranged inside the outer protective layer (1), a plurality of partitions (3) are fixedly connected inside the outer protective layer (1), a flame retardant cotton (4) is arranged inside the outer protective layer (1), a plurality of pads (5) are arranged inside the flame retardant cotton (4), an inner rubber layer (7) is fixedly connected to the side of the plurality of pads (5) away from the flame retardant cotton (4), a hollow layer (6) is arranged inside the inner rubber layer (7) on the side close to the flame retardant cotton (4), and a conductive component is fixedly connected to the inside of the inner rubber layer (7).

2. The highly flame-retardant insulated single-core wire according to claim 1, characterized in that: The conductive component comprises an insulating layer (8) and a conductive wire (9), wherein the conductive wire (9) is fixedly connected to the inside of the insulating layer (8), and the insulating layer (8) is fixedly connected to the inside of the inner rubber layer (7).

3. The highly flame-retardant insulated single-core wire according to claim 1, characterized in that: Firefighting foam is arranged inside the flame retardant bubble (2), and the flame retardant bubble (2) is arranged inside the flame retardant cotton (4).

4. The highly flame-retardant insulated single-core wire according to claim 1, characterized in that: One side of the flame retardant cotton (4) is in contact with the outer protective layer (1), and the other side of the flame retardant cotton (4) is in contact with the pad (5).

5. The highly flame-retardant insulated single-core wire according to claim 1, characterized in that: One side of the pad (5) is fixedly connected to the inside of the flame-retardant cotton (4), and the other side of the pad (5) is fixedly connected to the inside of the inner rubber layer (7).

6. The highly flame-retardant insulated single-core wire according to claim 1, characterized in that: The flame retardant bubble (2) is in contact with the hollow layer (6).

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