CN215643761U

CN215643761U - Fire-resistant flame-retardant moisture-proof cable

Info

Publication number: CN215643761U
Application number: CN202122086183.1U
Authority: CN
Inventors: 王俊坡; 杨永佳; 李汉枫
Original assignee: Guangdong Wanruitong Cable Industry Co ltd
Current assignee: Guangdong Wanruitong Cable Industry Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-01-25
Anticipated expiration: 2031-08-31

Abstract

A fire-resistant flame-retardant moistureproof cable comprises an outer cladding, an inner cladding, an armor layer and a copper core wire; an insulating coating is wrapped on the periphery of the copper core wire; a steel wire shielding layer is arranged on the periphery of the insulating covering layer; the copper core wire, the insulating cladding and the steel wire shielding layer are combined into an independent power supply core wire; the three groups of power supply core wires are combined into a whole, and an armor layer is arranged on the periphery of the combination; the armor layer and the power supply core wire form a filling layer in diameter, and the filling layer is filled with powdery flame retardant materials; the inner cladding is wrapped outside the armor layer and is made of flame-retardant mica sheets; the outer cladding is arranged on the periphery of the inner cladding, and a plurality of cavities are preset in the outer cladding; the waterproof cable has the advantages that the elastic connecting parts are arranged between the adjacent cavities, the waterproof cable has a waterproof function, when the cable is damaged, the damaged parts can also avoid water erosion, the phenomenon of mildewing cannot occur, and the use is safer.

Description

Fire-resistant flame-retardant moisture-proof cable

Technical Field

The utility model relates to the technical field of cables, in particular to a fireproof, flame-retardant and moisture-proof cable.

Background

With the rapid development of economy, the power industry in China also develops rapidly, and further the development of the cable industry is promoted, a cable is a wire product for transmitting electric energy and electric signals and realizing electromagnetic energy conversion, the cable usually consists of a cable core for transmitting the electric energy or the electric signals and a sheath for protecting and insulating, the cable core in the cable is made of a metal material with good electric conductivity, usually copper (good electric conductivity) or aluminum (low cost) is used, but the general cable in the prior art has good waterproof performance; however, when the cable is locally damaged or cracked, water vapor can enter the cable along the damaged part, and potential safety hazards exist.

In order to solve the problems, the application provides a fire-resistant, flame-retardant and moisture-proof cable.

SUMMERY OF THE UTILITY MODEL

Objects of the utility model

In order to solve the problems in the prior art that the general cable has better waterproof performance; however, when the cable is locally damaged or cracked, water vapor can enter the cable along the damaged part, and the technical problem of potential safety hazards exists.

(II) technical scheme

In order to solve the problems, the utility model provides a fire-resistant, flame-retardant and moisture-proof cable which comprises an outer cladding, an inner cladding, an armor layer and a copper core wire;

an insulating coating is wrapped on the periphery of the copper core wire; a steel wire shielding layer is arranged on the periphery of the insulating covering layer; the copper core wire, the insulating cladding and the steel wire shielding layer are combined into an independent power supply core wire; the three groups of power supply core wires are combined into a whole, and an armor layer is arranged on the periphery of the combination;

the armor layer and the power supply core wire form a filling layer in diameter, and the filling layer is filled with powdery flame retardant materials; the inner cladding is wrapped outside the armor layer and is made of flame-retardant mica sheets;

the outer cladding is arranged on the periphery of the inner cladding, and a plurality of cavities are preset in the outer cladding; an elastic connecting part is arranged between the adjacent cavities.

Preferably, the steel wire shielding layer is arranged in a net structure.

Preferably, the cavity is filled with a powdered desiccant.

Preferably, the outer cladding and the inner cladding are both elastic claddings.

Preferably, each cavity is provided with a through hole, and the through holes are sealed through glue.

Preferably, the thickness of the inner cladding is not less than 3 times the thickness of the outer cladding.

The technical scheme of the utility model has the following beneficial technical effects:

1. the outer cladding is arranged on the periphery of the inner cladding, and a plurality of cavities are preset in the outer cladding; an elastic connecting part is arranged between the adjacent cavities, and the connecting part plays a role in supporting the whole outer cladding layer and is used for spacing the cavities at the same time; meanwhile, the structure of the outer cladding layer increases the thickness, the ductility of the whole outer cladding layer can be improved through the cavity structure, and cracks are not prone to occurring at the bent position of the cable.

2. The steel wire shielding layer is arranged to be of a net structure. The netted shielding layer structure guarantees normal electromagnetic signal shielding effect, and is softer simultaneously, and is not fragile when buckling, and the kink is difficult for appearing the fold.

3. Powdered drier is filled in the cavity, and when the outer cladding of the cable is damaged, water vapor is absorbed by the drier, so that the corrosion of the inside of the cable by water can be avoided, and the mildew phenomenon can be avoided, thereby avoiding the influence on the normal use of the cable. The through hole on the cavity is convenient for injecting powdery drying agent, and the drying agent is prevented from leaking by sealing through glue solution after the injection is finished.

4. The waterproof cable has a waterproof function, when the cable is damaged, the damaged part can also avoid water erosion, the phenomenon of mildew cannot occur, and the waterproof cable is safer to use.

Drawings

Fig. 1 is a schematic view of the overall structure of a fire-resistant, flame-retardant and moisture-proof cable according to the present invention.

Fig. 2 is a schematic cross-sectional structure view of a fire-resistant, flame-retardant and moisture-proof cable according to the present invention.

Fig. 3 is a schematic cross-sectional view of an outer covering layer in the flame-retardant moisture-proof cable according to the present invention.

Reference numerals: 1. an outer cladding; 11. a cavity; 12. a connecting portion; 2. an inner cladding; 3. an armor layer; 4. a steel wire shielding layer; 5. an insulating cladding; 6. a copper core wire; 7. and (5) filling the layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-3, the fire-resistant, flame-retardant and moisture-proof cable according to the present invention comprises an outer cladding 1, an inner cladding 2, an armor layer 3 and a copper core wire 6;

an insulating cladding 5 is wrapped on the periphery of the copper core wire 6; a steel wire shielding layer 4 is arranged on the periphery of the insulating cladding 5; the copper core wire 6, the insulating cladding 5 and the steel wire shielding layer 4 are combined into an independent power supply core wire; the three groups of power supply core wires are combined into a whole, and an armor layer 3 is arranged on the periphery of the combination;

the armor layer 3 and the diameter of the power supply core wire form a filling layer 7, and the filling layer 7 is filled with powdery flame retardant materials; the inner cladding 2 is wrapped outside the armor layer 3, and the inner cladding 2 is a flame-retardant mica sheet;

the outer cladding layer 1 is arranged on the periphery of the inner cladding layer 2, and a plurality of cavities 11 are preset in the outer cladding layer 1; elastic connecting parts 12 are arranged between the adjacently arranged cavities 11.

It should be noted that the connecting portion 12 supports the entire envelope 1 and is used for spacing the cavities 11; meanwhile, the structure of the outer cladding layer 1 increases the thickness, and the structure of the cavity 11 can improve the ductility of the whole outer cladding layer 1, so that cracks are not easy to appear at the bent position of the cable.

In an alternative embodiment, the wire screen layer 4 is provided in a net structure.

It should be noted that, the mesh-shaped shielding layer structure ensures a normal electromagnetic signal shielding effect, is softer, is not easy to damage during bending, and has no wrinkles at the bent part.

In an alternative embodiment, the cavity 11 is filled with a desiccant in powder form.

It should be noted that, when the outer cladding layer 1 of the cable is damaged, the moisture is absorbed by the desiccant, so that the corrosion of the inside of the cable by water can be avoided, and the mildew phenomenon can be avoided, so as to avoid the influence on the normal use of the cable.

In an alternative embodiment, the outer cladding 1 and the inner cladding 2 are both elastic claddings.

In an alternative embodiment, each cavity 11 is provided with a through hole, and the through hole is sealed by glue.

It should be noted that the through hole on the cavity 11 facilitates the injection of the powdered drying agent, and the drying agent is sealed by the glue solution after the injection, so as to avoid the leakage of the drying agent.

In an alternative embodiment, the thickness of the inner cladding 2 is not less than 3 times the thickness of the outer cladding 1.

In the utility model, the insulating cladding 5 on the periphery of the copper core wires 6 plays an insulating role, so that the phenomenon of conductive short circuit between the copper core wires 6 is avoided; the steel wire shielding layer 4 is arranged to be net-shaped, and a net-shaped shielding layer structure is adopted, so that the normal electromagnetic signal shielding effect is ensured, and meanwhile, the steel wire shielding layer is softer, is not easy to damage during bending, and is not easy to wrinkle at the bent part; the three copper core wires 6 wrap the external insulating cladding 5 and the steel wire shielding layer 4 to form a three-phase power supply cable; the armor layer 3 arranged on the periphery of the assembly can improve the strength of the whole cable, the filling layer 7 is formed by the armor layer 3 and the diameter of the power supply core wire, the filling layer 7 is filled with powdery flame retardant materials, when a fire disaster occurs, the structure outside the cable is burnt, and the powdery flame retardant materials inside the cable can avoid the contact of the inner core wire and air, so that the flame retardant effect is achieved; the inner cladding 2 is a flame-retardant mica sheet, and plays a role in flame retardance. In the utility model, an outer cladding layer 1 is arranged on the periphery of an inner cladding layer 2, and a plurality of cavities 11 are preset in the outer cladding layer 1; elastic connecting parts 12 are arranged between the adjacent cavities 11, and the connecting parts 12 play a role in supporting the whole outer cladding 1 and are used for spacing the cavities 11; meanwhile, the structure of the outer cladding layer 1 increases the thickness, the ductility of the whole outer cladding layer 1 can be improved through the cavity 11 structure, cracks are not prone to occurring at the bent position of the cable, powdery drying agents are filled in the cavity 11, when the outer cladding layer of the cable is damaged, water vapor is absorbed by the drying agents, the inside of the cable can be prevented from being corroded by water, meanwhile, the phenomenon of mildew can be avoided, and the normal use of the cable is prevented from being influenced. The waterproof cable has a waterproof function, when the cable is damaged, the damaged part can also avoid water erosion, the phenomenon of mildew cannot occur, and the waterproof cable is safer to use.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A fire-resistant flame-retardant moistureproof cable is characterized by comprising an outer cladding (1), an inner cladding (2), an armor layer (3) and a copper core wire (6);

an insulating cladding (5) is wrapped on the periphery of the copper core wire (6); a steel wire shielding layer (4) is arranged on the periphery of the insulating cladding (5); the copper core wire (6), the insulating cladding (5) and the steel wire shielding layer (4) are combined into an independent power supply core wire; the three groups of power supply core wires are combined into a whole, and an armor layer (3) is arranged on the periphery of the combination;

the armor layer (3) and the diameter of the power supply core wire form a filling layer (7), and the filling layer (7) is filled with powdery flame retardant materials; the inner cladding (2) is wrapped outside the armor layer (3), and the inner cladding (2) is a flame-retardant mica sheet;

the outer cladding (1) is arranged on the periphery of the inner cladding (2), and a plurality of cavities (11) are preset in the outer cladding (1); an elastic connecting part (12) is arranged between the adjacent cavities (11).

2. The fire-resistant, flame-retardant and moisture-proof cable according to claim 1, wherein the steel wire shielding layer (4) is provided in a mesh structure.

3. The fire-resistant, flame-retardant and moisture-proof cable according to claim 1, wherein the cavity (11) is filled with a powdered desiccant.

4. The fire-resistant, flame-retardant and moisture-proof cable as claimed in claim 1, wherein the outer cladding (1) and the inner cladding (2) are both elastic claddings.

5. The fire-resistant, flame-retardant and moisture-proof cable according to claim 1, wherein each cavity (11) is provided with a through hole, and the through hole is sealed by glue.

6. The fire-resistant flame-retardant moisture-proof cable as claimed in claim 1, wherein the thickness of the inner cladding (2) is not less than 3 times the thickness of the outer cladding (1).