Parallel insulated bunched lead

Abstract

The utility model discloses a parallel insulation cluster lead, comprising two wire cores and a protective layer, the protective layer comprises a rubber layer, the two ends of the rubber layer are wrapped with aramid fiber layers, the surface of the rubber layer is fixedly connected with a steel wire outside the aramid fiber layers, and the steel wire is fixedly connected with the outer side of the rubber layer. And an external fireproof layer is arranged on the outer surface of the rubber layer. According to the utility model, through the arrangement of the internal fireproof layer, the aluminum silicate fiber paper wrapping layer and the ceramic fiber tape wrapping layer in the internal fireproof layer have good fireproof effects, and a double-layer fireproof protection effect is formed in the wire, so that the fireproof performance of the wire is effectively improved, and meanwhile, through the arrangement of the external fireproof layer, the fireproof performance of the wire is improved. The phenolic aldehyde-based fireproof coating and the ceramic silicone rubber coating in the external fireproof layer have good fireproof effects, so that a double-layer fireproof protection effect can be formed outside the wire, and the fireproof performance of the wire is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bundled conductors, in particular to parallel insulated bundled conductors. Background Art

[0002] The full name of the bundled conductor is the bundled overhead insulated cable. During manufacturing, multiple insulated cables are compactly connected together with insulating material connecting ribs. There are two types of integration: parallel (flat) and square. It is a compact cable bundle that works in an overhead manner.

[0003] For example, the Chinese utility model provides "a low-voltage insulated bundled conductor", and its announcement number is: CN210575233U. The application includes a plurality of cores, the axes of the cores are all in the same plane, each core is wrapped with an insulating layer, the outer side of the insulating layer is wrapped with a protective layer, and a connecting plate is connected between the protective layers of two adjacent cores. The connecting plates are distributed along the length direction of the protective layer and are integrally formed with the protective layer, and the connecting plates are located on the lower surfaces of the two adjacent protective layers. The bundled conductors in the above technology lack a good tensile protection structure, and are prone to breakage due to dragging during use. At the same time, the overall fire protection effect is poor, which reduces the fire safety of the bundled conductors. Utility Model Content

[0004] The purpose of the utility model is to provide parallel insulated bundled conductors, which have the advantages of high tensile strength and improved overall fire protection effect, and solve the problem that the bundled conductors in the above technology lack a good tensile protection structure, are prone to breakage due to dragging during use, and the overall fire protection effect is poor.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: parallel insulated bundled conductors, including a core and a protective layer, the number of the cores is two, the protective layer includes a rubber layer, both ends of the rubber layer are wrapped with an aramid fiber layer, the surface of the rubber layer and the outside of the aramid fiber layer are fixedly connected with a steel wire, the outer surface of the rubber layer is provided with an external fireproof layer, the external fireproof layer includes a phenolic-based fireproof coating and a ceramic silicone rubber coating, both ends of the protective layer are wrapped with an internal fireproof layer, and the internal fireproof layer includes an aluminum silicate fiber paper wrapping layer and a ceramic fiber tape wrapping layer.

[0006] As a preferred embodiment, the inner surface of the aluminum silicate fiber paper wrapping layer is wrapped around the outer surface of the ceramic fiber tape wrapping layer, and the thickness of the aluminum silicate fiber paper wrapping layer is equal to the thickness of the ceramic fiber tape wrapping layer.

[0007] As a preferred solution, the surface of the wire core is wrapped with a cross-linked polyethylene layer, and a mica tape wrapping layer is wrapped between the outer surface of the cross-linked polyethylene layer and the inner surface of the internal fireproof layer.

[0008] As a preferred solution, the outer surface of the protective layer is covered with a rubber sleeve, the outer surface of the rubber sleeve is fixedly connected to a fixing sleeve, and the bottom of the fixing sleeve is fixedly connected to a mounting plate.

[0009] As a preferred embodiment, the surface of the ceramic silicone rubber coating is coated on the outer surface of the rubber layer, and the surface of the phenolic-based fireproof coating is coated on the surface of the ceramic silicone rubber coating.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. The utility model provides an internal fireproof layer. Since the aluminum silicate fiber paper wrapping layer and the ceramic fiber tape wrapping layer in the internal fireproof layer both have good fireproof effects, a double-layer fireproof protection effect is formed inside the wire, thereby effectively improving the fireproof performance of the wire. At the same time, through the provision of an external fireproof layer, since the phenolic-based fireproof coating and the ceramic silicone rubber coating in the external fireproof layer both have good fireproof effects, a double-layer fireproof protection effect can be formed outside the wire, thereby greatly improving the fireproof performance of the wire. At the same time, since the rubber layer, steel wire and aramid fiber layer in the protective layer all have good tensile strength, good tensile strength protection is formed on the surface of the wire, which greatly improves the tensile strength of the wire, avoids the wire from breaking due to force, and ensures the service life of the wire.

[0012] 2. The utility model forms a good double-layer insulation protection around the wire core by setting a cross-linked polyethylene layer and a mica tape wrapping layer, thereby ensuring the insulation performance around the wire core. At the same time, since the mica tape wrapping layer has good fire resistance, the probability of leakage of the wire core in a fire environment is effectively reduced, thereby improving the safety of use. The arrangement of the rubber sleeve, the fixing sleeve and the mounting plate facilitates the installation and fixing of the whole by personnel. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 2 This is a schematic diagram of the internal fireproof layer structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the protective layer structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the external fireproof layer of the utility model.

[0017] In the figure: 1. Protective layer; 11. External fireproof layer; 111. Phenolic-based fireproof coating; 112. Ceramic silicone rubber coating; 12. Rubber layer; 13. Steel wire; 14. Aramid fiber layer; 2. Internal fireproof layer; 21. Aluminum silicate fiber paper wrapping layer; 22. Ceramic fiber tape wrapping layer; 3. Mica tape wrapping layer; 4. Cross-linked polyethylene layer; 5. Wire core; 6. Rubber sleeve; 7. Fixing sleeve; 8. Mounting plate. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-4 A parallel insulated bundled conductor comprises a core 5 and a protective layer 1, wherein the number of the cores 5 is two, the protective layer 1 comprises a rubber layer 12, both ends of the rubber layer 12 are wrapped with an aramid fiber layer 14, a steel wire 13 is fixedly connected to the surface of the rubber layer 12 and located on the outside of the aramid fiber layer 14, an external fireproof layer 11 is arranged on the outer surface of the rubber layer 12, the external fireproof layer 11 comprises a phenolic-based fireproof coating 111 and a ceramic silicone rubber coating 112, both ends of the protective layer 1 are wrapped with an internal fireproof layer 2, and the internal fireproof layer 2 comprises an aluminum silicate fiber paper wrapping layer 21 and a ceramic fiber tape wrapping layer 22.

[0020] Through the above technical scheme, through the setting of the internal fireproof layer 2, since the aluminum silicate fiber paper wrapping layer 21 and the ceramic fiber tape wrapping layer 22 in the internal fireproof layer 2 both have good fireproof effects, a double-layer fireproof protection effect is formed inside the conductor, thereby effectively improving the fireproof performance of the conductor. At the same time, through the setting of the external fireproof layer 11, since the phenolic-based fireproof coating 111 and the ceramic silicone rubber coating 112 in the external fireproof layer 11 both have good fireproof effects, a double-layer fireproof protection effect can be formed on the outside of the conductor, thereby greatly improving the fireproof performance of the conductor. At the same time, since the rubber layer 12, the steel wire 13 and the aramid fiber layer 14 in the protective layer 1 all have good tensile strength, good tensile strength protection is formed on the surface of the conductor, which greatly improves the tensile strength of the conductor, avoids the conductor from breaking due to force, and ensures the service life of the conductor.

[0021] The inner surface of the aluminum silicate fiber paper wrapping layer 21 is wrapped around the outer surface of the ceramic fiber tape wrapping layer 22 , and the thickness of the aluminum silicate fiber paper wrapping layer 21 is equal to the thickness of the ceramic fiber tape wrapping layer 22 .

[0022] The surface of the wire core 5 is wrapped with a cross-linked polyethylene layer 4 , and a mica tape wrapping layer 3 is wrapped between the outer surface of the cross-linked polyethylene layer 4 and the inner surface of the internal fireproof layer 2 .

[0023] Through the above technical scheme, by setting the cross-linked polyethylene layer 4 and the mica tape sheath 3, a good double-layer insulation protection is formed around the core 5, ensuring the insulation performance around the core 5. At the same time, since the mica tape sheath 3 has good fire resistance, the probability of leakage of the core 5 in a fire environment is effectively reduced, thereby improving the safety of use.

[0024] The outer surface of the protective layer 1 is covered with a rubber sleeve 6 , the outer surface of the rubber sleeve 6 is fixedly connected with a fixing sleeve 7 , and the bottom of the fixing sleeve 7 is fixedly connected with a mounting plate 8 .

[0025] Through the above technical solution, by arranging the rubber sleeve 6, the fixing sleeve 7 and the mounting plate 8, it is convenient for personnel to install and fix the whole.

[0026] The surface of the ceramic silicone rubber coating 112 is coated on the outer surface of the rubber layer 12 , and the surface of the phenolic-based fireproof coating 111 is coated on the surface of the ceramic silicone rubber coating 112 .

[0027] The working principle of the utility model is: through the setting of the internal fireproof layer 2, since the aluminum silicate fiber paper wrapping layer 21 and the ceramic fiber tape wrapping layer 22 in the internal fireproof layer 2 both have good fireproof effects, a double-layer fireproof protection effect is formed inside the conductor, thereby effectively improving the fireproof performance of the conductor, and at the same time, through the setting of the external fireproof layer 11, since the phenolic-based fireproof coating 111 and the ceramic silicone rubber coating 112 in the external fireproof layer 11 both have good fireproof effects, a double-layer fireproof protection effect can be formed outside the conductor, thereby greatly improving the fireproof performance of the conductor, and at the same time, since the rubber layer 12, the steel wire 13 and the aramid fiber layer 14 in the protective layer 1 all have good tensile strength, good tensile strength protection is formed on the surface of the conductor, which greatly improves the tensile strength of the conductor, avoids the conductor from breaking due to force, and ensures the service life of the conductor.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A parallel insulated bundled conductor, comprising a core (5) and a protective layer (1), Features: The number of the wire cores (5) is two, the protective layer (1) comprises a rubber layer (12), both ends of the rubber layer (12) are wrapped with aramid fiber layers (14), a steel wire (13) is fixedly connected to the surface of the rubber layer (12) and located outside the aramid fiber layer (14), the outer surface of the rubber layer (12) is provided with an external fireproof layer (11), the external fireproof layer (11) comprises a phenolic-based fireproof coating (111) and a ceramic silicone rubber coating (112), and both ends of the protective layer (1) are wrapped with an internal fireproof layer (2), and the internal fireproof layer (2) comprises an aluminum silicate fiber paper wrapping layer (21) and a ceramic fiber tape wrapping layer (22).

2. The parallel insulated bundled conductor according to claim 1, Features: The inner surface of the aluminum silicate fiber paper wrapping layer (21) is wrapped around the outer surface of the ceramic fiber tape wrapping layer (22), and the thickness of the aluminum silicate fiber paper wrapping layer (21) is equal to the thickness of the ceramic fiber tape wrapping layer (22).

3. The parallel insulated bundled conductors according to claim 1, Features: The surface of the wire core (5) is wrapped with a cross-linked polyethylene layer (4), and a mica tape wrapping layer (3) is wrapped between the outer surface of the cross-linked polyethylene layer (4) and the inner surface of the internal fireproof layer (2).

4. The parallel insulated bundled conductors according to claim 1, Features: The outer surface of the protective layer (1) is sleeved with a rubber sleeve (6), the outer surface of the rubber sleeve (6) is fixedly connected to a fixing sleeve (7), and the bottom of the fixing sleeve (7) is fixedly connected to a mounting plate (8).

5. The parallel insulated bundled conductors according to claim 1, Features: The surface of the ceramic silicone rubber coating (112) is coated on the outer surface of the rubber layer (12), and the surface of the phenolic-based fireproof coating (111) is coated on the surface of the ceramic silicone rubber coating (112).

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