Ecological environment-friendly composite fire-resistant cable

Abstract

The utility model relates to the technical field of cables, in particular to an ecological environment-friendly composite fire-resistant cable, which comprises a conductor, an insulating layer and a protective layer, the conductor comprises a main conductor and a secondary conductor, a conductor shielding layer is coated outside the main conductor, an insulating shielding layer is coated outside the secondary conductor, the insulating layer is used for coating the conductor shielding layer, and the protective layer is used for coating the insulating shielding layer. Gaps outside the insulating layers are filled with fillers, the protective layer is arranged on the outermost layer of the cable, and the protective layer internally comprises a heat insulation layer, a wrapping layer and an outer sheath. According to the utility model, the designed cable has excellent insulation performance and high temperature resistance, normal operation of a circuit can be guaranteed in various severe environments, and meanwhile, the design of the protective layer further enhances the wear resistance and corrosion resistance of the cable, greatly prolongs the service life of the cable, and improves economic benefits.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to an ecological and environmentally friendly composite fire-resistant cable. Background Art

[0002] Fire-resistant cables are a type of cable developed under the background of increasingly high fire safety requirements. Since wires and cables are prone to cause the spread of fire when a fire occurs, people have begun to explore new types of fire-resistant wires and cables to reduce the hazards of fire. However, common fire-resistant cables usually use asbestos as insulation material. Asbestos itself not only has components that are harmful to human health, but is also very detrimental to environmental protection. Therefore, we propose an eco-friendly composite fire-resistant cable here;

[0003] The above information disclosed in this Background section is only for understanding the background of the present inventive concept and therefore it may contain information that does not constitute prior art. Utility Model Content

[0004] The purpose of the utility model is to provide an ecological and environmentally friendly composite fire-resistant cable to solve the problem that the traditional fire-resistant cable mentioned in the above background technology cannot meet the growing environmental protection demand in terms of economy and environmental protection.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An eco-friendly composite fire-resistant cable, comprising a conductor, an insulating layer and a protective layer, wherein the conductor comprises a main conductor and a secondary conductor, the main conductor is coated with a conductor shielding layer, the secondary conductor is coated with an insulating shielding layer, the insulating layer is used to wrap the conductor shielding layer, the gap outside the insulating layer is filled with a filler, the protective layer is arranged at the outermost layer of the cable, and the protective layer comprises a heat insulation layer, a wrapping layer and an outer sheath;

[0007] In addition, the preferred structure is that the main conductor is made of soft copper material, the number of the main conductors is three, and the secondary conductors are placed between the main conductors, the number of the secondary conductors is four;

[0008] In addition, a preferred structure is that the conductor shielding layer is formed by interweaving tinned copper wires and nylon wires, and the nylon wires are provided with color separation marks;

[0009] In addition, a preferred structure is that the filler is used to fill the gap in the protective layer, the material of the filler is aluminum silicate fiber, and a flame retardant can be added to the filler;

[0010] In addition, the preferred structure is that the protective layer is a multi-layer structure, the outer sheath is made of polyvinyl chloride material, the wrapping layer is a glass tape, and the heat insulation layer is alumina;

[0011] The beneficial effects of the utility model are:

[0012] In the utility model, the designed cable has excellent insulation performance and high temperature resistance, and can ensure the normal operation of the circuit in various harsh environments. At the same time, the design of the protective layer further enhances the wear resistance and corrosion resistance of the cable, greatly enhances the service life of the cable, and improves economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The present invention is a schematic structural diagram of an eco-friendly composite fire-resistant cable.

[0014] In the figure: 1 main conductor, 2 conductor shielding layer, 3 insulating layer, 4 filler, 5 secondary conductor, 6 insulating shielding layer, 7 protective layer. DETAILED DESCRIPTION

[0015] 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.

[0016] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0017] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0018] Reference Figure 1 , an eco-friendly composite fire-resistant cable, comprising a conductor, an insulating layer 3 and a protective layer 7, wherein the conductor comprises a main conductor 1 and a secondary conductor 5;

[0019] In other embodiments, the main conductors 1 are made of soft copper material, the number of the main conductors 1 is three, the secondary conductors 5 are placed between the main conductors 1, and the number of the secondary conductors 5 is four;

[0020] This design ensures that the cable has good electrical conductivity, can effectively improve the conductivity of the conductor, reduce the resistance and power loss of the cable, and also meet the practical needs of the cable in special scenarios;

[0021] The main conductor 1 is coated with a conductor shielding layer 2, and the secondary conductor 5 is coated with an insulating shielding layer 6. The insulating layer 3 is used to wrap the conductor shielding layer 2. The insulating shielding layer 6 is made of a copper mesh and has good conductivity and shielding effect. The insulating shielding layer 6 is used to cover the secondary conductor 5 to isolate the electromagnetic interference between the secondary conductor 5 and the external environment, and ensure the stability and reliability of the cable transmission signal. The inner surface of the insulating shielding layer 6 is also coated with a layer of flame retardant to improve the fire resistance of the cable in the event of a fire.

[0022] In other embodiments, the conductor shielding layer 2 is formed by interweaving tinned copper wires and nylon wires, and the nylon wires are provided with color separation marks;

[0023] This design not only ensures the normal operation and safe use of the cable, but also helps to improve the identifiability and maintainability of the cable, which is conducive to future maintenance and replacement.

[0024] The gap outside the insulating layer 3 is filled with a filler 4. The insulating layer 3 is made of polyethylene material and has good heat resistance, aging resistance and electrical resistance. The insulating layer 3 is used to wrap the conductor shielding layer 2 to isolate the electrical connection between the main conductor 1 and the secondary conductor 5 to prevent short circuit or leakage. The outer surface of the insulating layer 3 is also coated with a layer of flame retardant to improve the fire resistance of the cable in the event of a fire.

[0025] In other embodiments, the filler 4 is used to fill the gap in the protective layer 7, the material of the filler 4 is aluminum silicate fiber, and a flame retardant may be added to the filler 4;

[0026] This design further ensures the heat resistance of the cable, and the selection of more environmentally friendly materials not only meets the needs of energy conservation and environmental protection, but also protects human health;

[0027] The protective layer 7 is arranged on the outermost layer of the cable, and the protective layer 7 includes a heat insulation layer, a wrapping layer and an outer sheath;

[0028] In other embodiments, the protective layer 7 is a multi-layer structure, the outer sheath is made of polyvinyl chloride material, the wrapping layer is a glass tape, and the heat insulation layer is alumina;

[0029] This design can better protect the internal structure of the cable from erosion and damage by the external environment, thereby improving the service life and reliability of the cable;

[0030] In this embodiment, the designed cable has excellent insulation performance and high temperature resistance, and can ensure the normal operation of the circuit in various harsh environments. At the same time, the design of the protective layer further enhances the wear resistance and corrosion resistance of the cable, greatly enhances the service life of the cable and improves economic benefits.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An eco-friendly composite fire-resistant cable, comprising a conductor, an insulating layer (3) and a protective layer (7), characterized in that: The conductor comprises a main conductor (1) and a secondary conductor (5); the main conductor (1) is coated with a conductor shielding layer (2); the secondary conductor (5) is coated with an insulating shielding layer (6); the insulating layer (3) is used to wrap the conductor shielding layer (2); the gap outside the insulating layer (3) is filled with a filler (4); the protective layer (7) is arranged on the outermost layer of the cable; the protective layer (7) comprises a heat insulation layer, a wrapping layer and an outer sheath.

2. The ecological and environmentally friendly composite fire-resistant cable according to claim 1, characterized in that: The main conductor (1) is made of soft copper material, the number of the main conductors (1) is three, the secondary conductors (5) are arranged between the main conductors (1), and the number of the secondary conductors (5) is four.

3. The ecological and environmentally friendly composite fire-resistant cable according to claim 1, characterized in that: The conductor shielding layer (2) is formed by interweaving tinned copper wires and nylon wires, and the nylon wires are provided with color separation marks.

4. The ecological and environmentally friendly composite fire-resistant cable according to claim 1, characterized in that: The filler (4) is used to fill the gap in the protective layer (7); the material of the filler (4) is aluminum silicate fiber; and a flame retardant may be added to the filler (4).

5. The ecological and environmentally friendly composite fire-resistant cable according to claim 1, characterized in that: The protective layer (7) is a multi-layer structure, the outer sheath is made of polyvinyl chloride material, the wrapping layer is a glass tape, and the heat insulation layer is alumina.

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