Novel environment-friendly flame-retardant cable

Abstract

The invention relates to the technical field of cables, and discloses a novel environment-friendly flame-retardant cable which comprises a conductor and an insulating layer, the insulating layer wraps the conductor, the space between the conductor and the insulating layer is filled with a filling layer, the insulating layer is wrapped with a flame-retardant layer, and the flame-retardant layer is wrapped with a wear-resistant layer. The flame-retardant layer is composed of a flame-retardant inner layer, a wire mesh, flame-retardant optical fiber filling paste and a flame-retardant outer layer, the flame-retardant inner layer is an intumescent fireproof blanket, the wire mesh wraps the outer surface of the flame-retardant inner layer, and the flame-retardant optical fiber filling paste is smeared on the surface of the wire mesh and in grids. According to the scheme, the conductor is wrapped by the insulating layer, the space between the conductor and the insulating layer is filled with the filling layer, the insulating layer is wrapped by the flame-retardant layer, and three-level flame-retardant protection can be performed on the conductor through cooperation of the insulating layer, the flame-retardant inner layer in the flame-retardant layer, the flame-retardant optical fiber filling paste, the flame-retardant outer layer and the filling layer; the overall flame-retardant effect is obviously improved.

Description

A new type of environmentally friendly flame-retardant cable Technical Field

[0001] This application relates to the field of cable technology, and in particular to a novel environmentally friendly flame-retardant cable. Background Technology

[0002] Cables are made of one or more mutually insulated conductors and an outer insulating protective layer. They are wires that transmit electricity or information from one place to another. With the continuous development of society, cables are used in all areas of life, and therefore the performance requirements for them are getting higher and higher. Traditional cables have weak flame retardant properties and are easily burned when exposed to open flames during use, which will seriously affect the cable's power transmission function. Summary of the Invention

[0003] To address the issue that traditional cables have weak flame retardant properties and are easily ignited by open flames during use, which severely affects their electrical conductivity, this application provides a novel environmentally friendly flame-retardant cable.

[0004] This application provides a novel environmentally friendly flame-retardant cable using the following technical solution:

[0005] A novel environmentally friendly flame-retardant cable includes a conductor and an insulation layer. The insulation layer is wrapped around the conductor, and a filler layer is placed between the conductor and the insulation layer. A flame-retardant layer is wrapped around the insulation layer, and a wear-resistant layer is wrapped around the flame-retardant layer. The flame-retardant layer consists of a flame-retardant inner layer, a wire mesh, a flame-retardant optical fiber filler paste, and a flame-retardant outer layer. The flame-retardant inner layer is an intumescent fire blanket. The wire mesh is wrapped around the outer surface of the flame-retardant inner layer. The flame-retardant optical fiber filler paste is applied to the surface and mesh of the wire mesh. The flame-retardant outer layer is wrapped around the outer surface of the flame-retardant optical fiber filler paste and is made of fiberglass tape.

[0006] Preferably, the conductor is formed by stranding multiple metal wires, specifically copper wires.

[0007] Preferably, the insulating layer is made of an insulating material, specifically a halogen-free flame-retardant polyolefin.

[0008] Preferably, the wear-resistant layer is made of a wear-resistant material, specifically rubber.

[0009] Preferably, the filling layer is a ceramicized silicone rubber core.

[0010] In summary, this application has the following beneficial technical effects: by wrapping an insulating layer around the conductor, filling the space between the conductor and the insulating layer, and wrapping a flame-retardant layer around the insulating layer, the combination of the insulating layer, the flame-retardant inner layer in the flame-retardant layer, the flame-retardant optical fiber filling paste, the flame-retardant outer layer, and the filling layer can provide three levels of flame-retardant protection for the conductor, significantly improving the overall flame-retardant effect. Attached Figure Description

[0011] Figure 1 is a schematic diagram of the overall structure of Embodiment 1 of the application.

[0012] Figure 2 is a side view of the structure of Embodiment 1 of the application.

[0013] Figure 3 is a cross-sectional structural diagram of the first embodiment of the application.

[0014] Explanation of reference numerals in the attached diagram: 1. Conductor; 2. Insulating layer; 3. Flame retardant layer; 31. Flame retardant inner layer; 32. Wire mesh; 33. Flame retardant optical fiber filling paste; 34. Flame retardant outer layer; 4. Wear-resistant layer; 5. Filling layer. Detailed Implementation

[0015] The present application will be further described in detail below with reference to Figures 1-3.

[0016] Example 1:

[0017] A novel environmentally friendly flame-retardant cable, as shown in Figures 1-3, comprises a conductor 1 made of multiple stranded metal wires, specifically copper wires. The insulation layer 2 is made of an insulating material, specifically a halogen-free flame-retardant polyolefin, which possesses excellent flame-retardant properties. A filler layer 5, a ceramicized silicone rubber core, is inserted between the conductor 1 and the insulation layer 2. During the stranding of the conductor 1, the filler layer 5 is simultaneously filled into the gaps between the multiple copper wires, simultaneously encasing the conductor 1. The halogen-free flame-retardant polyolefin is then melted using a hot-melt machine and extruded and wrapped onto the outer surface of the filler layer 5 using an extruder to form the insulation layer 2. At this point, the insulation layer 2 encases the conductor 1. The filler layer 5 is sintered at high temperatures into a hard ceramic skeleton, which improves the flame retardancy of the conductor 1 and prevents short circuits. A flame-retardant layer 3 is wrapped around the insulation layer 2. The flame-retardant layer 3 consists of a flame-retardant inner layer 31, a wire mesh 32, and a flame-retardant core. The structure consists of an inner flame-retardant fiber optic filling paste 33 and an outer flame-retardant layer 34. The inner flame-retardant layer 31 is an intumescent fire blanket. A wire mesh 32 is wrapped around the outer surface of the inner flame-retardant layer 31. The flame-retardant fiber optic filling paste 33 is applied to the surface and mesh of the wire mesh 32. The wire mesh 32 is used to enhance the stability of the flame-retardant fiber optic filling paste 33, which can improve its flame retardancy. The outer flame-retardant layer 34 is wrapped around the outer surface of the flame-retardant fiber optic filling paste 33. The outer flame-retardant layer 34 is made of fiberglass cloth tape. When the flame-retardant inner layer 31 expands due to heat, it will form a thick carbonized heat insulation layer, which, together with the outer flame-retardant layer 34, provides a robust physical fire barrier for the conductor 1. At the same time, the flame-retardant fiber optic filling paste 33, with its own flame-retardant properties, can further improve the flame retardancy by working with the inner flame-retardant layer 31 and the outer flame-retardant layer 34. The outer surface of the flame-retardant layer 3 is wrapped with a wear-resistant layer 4, which is made of wear-resistant material, specifically rubber, and can be used to enhance wear resistance.

[0018] The foregoing description of an exemplary embodiment of a novel environmentally friendly flame-retardant cable provided by this disclosure refers to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.

Claims

1. A novel environmentally friendly flame-retardant cable, comprising a conductor (1) and an insulation layer (2), characterized in that, The insulating layer (2) is wrapped around the conductor (1), and a filling layer (5) is filled between the conductor (1) and the insulating layer (2). The insulating layer (2) is wrapped with a flame-retardant layer (3), and the flame-retardant layer (3) is wrapped with a wear-resistant layer (4). The flame-retardant layer (3) is composed of a flame-retardant inner layer (31), a wire mesh (32), a flame-retardant optical fiber filling paste (33), and a flame-retardant outer layer (34). The flame-retardant inner layer (31) is an intumescent fire blanket. The wire mesh (32) is wrapped around the outer surface of the flame-retardant inner layer (31). The flame-retardant optical fiber filling paste (33) is applied to the surface of the wire mesh (32) and in the mesh. The flame-retardant outer layer (34) is wrapped around the outer surface of the flame-retardant optical fiber filling paste (33). The flame-retardant outer layer (34) is a glass fiber tape.

2. The novel environmentally friendly flame-retardant cable according to claim 1, characterized in that: The conductor (1) is made of multiple metal wires twisted together, specifically copper wires.

3. The novel environmentally friendly flame-retardant cable according to claim 1, characterized in that: The insulating layer (2) is made of an insulating material, specifically a halogen-free flame-retardant polyolefin.

4. The novel environmentally friendly flame-retardant cable according to claim 1, characterized in that: The wear-resistant layer (4) is made of wear-resistant material, specifically rubber.

5. A novel environmentally friendly flame-retardant cable according to claim 1, characterized in that: The filling layer (5) is a ceramicized silicone rubber core.

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