CN112349454A

CN112349454A - Fireproof electric wire

Info

Publication number: CN112349454A
Application number: CN202011314179.XA
Authority: CN
Inventors: 孙华荣
Original assignee: Yingtan Jinhai Wire And Cable Co ltd
Current assignee: Yingtan Jinhai Wire And Cable Co ltd
Priority date: 2020-11-21
Filing date: 2020-11-21
Publication date: 2021-02-09

Abstract

The invention relates to the technical field of wire production and manufacturing, in particular to a fireproof wire which comprises three wire cores, wherein the outer walls of the wire cores are coated with insulating layers, a first coating layer is arranged outside the insulating layers, and a fireproof flame-retardant filler is filled between the first coating layer and the insulating layers; a second coating layer is arranged outside the first coating layer, and an insulating filler is arranged between the first coating layer and the second coating layer; and a refractory layer is arranged outside the second coating layer, a wear-resistant layer is arranged outside the refractory layer, and an anti-corrosion layer is arranged outside the wear-resistant layer. The fireproof electric wire can prevent the invasion of external open fire and prevent external fire caused by burning inside the electric wire when the electric wire is short-circuited or fused.

Description

Fireproof electric wire

Technical Field

The invention relates to the technical field of electric wire production and manufacturing, in particular to a fireproof electric wire.

Background

The electric wire is a wire for transmitting electric energy, the initial electric wire has a simple structure and can meet the requirements of daily life, however, with the improvement of the living standard and the increase of electrical appliances and other equipment, higher requirements are put forward on the quality structure and the like of the electric wire, the electric wire is required to have the functions of freezing resistance, fire prevention, corrosion prevention and the like, the existing fireproof electric wire can only prevent the invasion of external open fire, and when short circuit or fusing occurs, the internal ignition of the electric wire can still ignite external inflammable matters to expand the fire range.

Disclosure of Invention

Accordingly, the present invention is directed to a fireproof electric wire, which can prevent not only the invasion of an external open fire, but also the occurrence of an external fire caused by the burning of the inside of the electric wire when the electric wire is short-circuited or fused.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a fireproof electric wire comprises three wire cores, wherein the outer walls of the wire cores are coated with insulating layers, a first coating layer is arranged outside the insulating layers, and fireproof flame-retardant fillers are filled between the first coating layer and the insulating layers;

a second coating layer is arranged outside the first coating layer, and an insulating filler is arranged between the first coating layer and the second coating layer;

and a refractory layer is arranged outside the second coating layer, a wear-resistant layer is arranged outside the refractory layer, and an anti-corrosion layer is arranged outside the wear-resistant layer.

As an improvement: and a heat-resistant flame-retardant partition plate is arranged between each wire core and is positioned inside the second coating layer.

As an improvement: the second cladding layer is including inner liner and articulamentum, the inner liner is used for the thermal-insulated filler of cladding to prevent it to spill over, the articulamentum is used for firm inner liner.

As an improvement: the fireproof flame-retardant filler is a mixture of glass fibers and ceramic fibers, and the heat-insulating filler is a synthetic mineral substance.

As an improvement: an isolation layer is arranged outside the anti-corrosion layer, and a plurality of isolation anti-extrusion cavities are arranged inside the isolation layer.

As an improvement: the upper part of the isolation anti-extrusion cavity is in a trapezoid shape, and the lower part of the isolation anti-extrusion cavity is in an oval shape.

As an improvement: the fire extinguishing device is characterized in that a buffering fire extinguishing layer is arranged outside the isolation layer, a plurality of stepped buffering belts are arranged in the buffering fire extinguishing layer, and fire extinguishing agents are filled in the buffering belts.

As an improvement: two symmetrically arranged fixing frames are arranged outside the buffering fire extinguishing layer, and fixing through holes are formed in the fixing frames.

In summary, the present invention has the following technical effects:

the invention provides a fireproof electric wire, which can prevent external fire caused by internal firing when the electric wire is short-circuited or fused by filling a fireproof flame-retardant filler between a first coating layer and an insulating layer; a heat-resistant flame-retardant partition plate is arranged between each lead core, so that the fire-starting range is prevented from being expanded when the leads are burnt; the fire-resistant layer is arranged outside the second coating layer, so that the electric wire can be prevented from being damaged by external open fire; through be equipped with thermal-insulated filler between first cladding and second cladding, can prevent that the outside temperature of electric wire is too high, cause the harm to the electric wire is inside, also can prevent simultaneously that the inside temperature of electric wire from lighting off the external object when too high.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly described below.

Fig. 1 is a schematic view of an overall structure of a fireproof electric wire;

wherein: 1. a wire core; 2. an insulating layer; 3. a first cladding layer; 4. a fire resistant, flame retardant filler; 5. a second cladding layer; 51. an inner liner layer; 52. a connecting layer; 6. a thermally insulating filler; 7. a refractory layer; 8. a wear layer; 9. an anti-corrosion layer; 10. an isolation layer; 11. isolating the anti-extrusion cavity; 12. a buffer fire extinguishing layer; 13. a buffer zone; 14. a fire extinguishing agent; 15. a fixed mount; 16 secure the through-hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Exemplary embodiments of the present invention are described below in conjunction with specific cases:

referring to fig. 1, a fireproof electric wire includes three wire cores 1, an insulating layer 2 is coated on an outer wall of each wire core 1, a first coating layer 3 is disposed outside the insulating layer 2, and a fireproof flame-retardant filler 4 is filled between the first coating layer 3 and the insulating layer 2;

a second coating layer 5 is arranged outside the first coating layer 3, and an insulating filler 6 is arranged between the first coating layer 3 and the second coating layer 5; a fire-resistant layer 7 is arranged outside the second cladding layer 5, a wear-resistant layer 8 is arranged outside the fire-resistant layer 7, and an anti-corrosion layer 9 is arranged outside the wear-resistant layer 8. A heat-resistant flame-retardant partition plate is provided between each of the wire cores 1, and the heat-resistant flame-retardant partition plate is located inside the second clad layer 5.

The second cladding layer 5 comprises an inner lining layer 51 and a connecting layer 52, wherein the inner lining layer 51 is used for cladding the heat insulation filler 6 to prevent the heat insulation filler from overflowing, and the connecting layer 52 is used for stabilizing the inner lining layer 51. The fire-resistant flame-retardant filler 4 is a mixture of glass fibers and ceramic fibers, and the heat-insulating filler 6 is a synthetic mineral.

In the embodiment, the fireproof and flame-retardant filler 4 is filled between the first coating layer 3 and the insulating layer 2, so that when the electric wire is short-circuited or fused, external fire caused by internal burning can be prevented; a heat-resistant flame-retardant partition plate is arranged between each lead core 1, so that the fire range is prevented from expanding when the leads are burnt; a fire-resistant layer 7 is arranged outside the second coating layer 5, so that the electric wire can be prevented from being damaged by external open fire; by providing the heat insulating filler 6 between the first coating layer 3 and the second coating layer 5, damage to the inside of the electric wire when the outside temperature of the electric wire is excessively high can be prevented, and also an external object can be prevented from being ignited when the inside temperature of the electric wire is excessively high.

Be equipped with isolation layer 10 in the outside of anticorrosive coating 9, be equipped with a plurality of isolation in isolation layer 10's inside and prevent extrusion cavity 11, the upper portion of keeping apart and preventing extrusion cavity 11 is trapezoidal form, and its lower part is oval shape, and in this embodiment, trapezoidal form and oval shape's cavity can not only play the isolation, can also prevent the extrusion of external force to the electric wire inside.

Be equipped with buffering fire extinguishing layer 12 in isolation layer 10's outside, be equipped with the buffering area 13 that a plurality of is the echelonment in buffering fire extinguishing layer 12, it has fire extinguishing agent 14 to fill in buffering area 13, in this embodiment, the buffering area 13 of echelonment, not only cushioning effect, release storage is at fire extinguishing agent 14 wherein when buffering fire extinguishing layer 12 is burnt through to open fire, play the effect of putting out a fire to a certain extent, its projection of buffering area 13 of echelonment just can cover whole isolation layer 10 in isolation layer 10's area, thereby promote the coverage and the effect of putting out a fire.

Two fixing frames 15 which are symmetrically arranged are arranged outside the buffering fire extinguishing layer 12, and fixing through holes 16 are formed in the fixing frames 15, so that convenience is provided for the installation of the electric wire cables through the fixing through holes 16 in the fixing frames 15 in the embodiment.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing detailed description of the embodiments of the present invention has been presented for purposes of illustration and description, and is intended to be exemplary only and is not intended to be exhaustive or to limit the invention to the precise forms disclosed; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A fireproof electric wire is characterized by comprising three wire cores (1), wherein the outer walls of the wire cores (1) are coated with insulating layers (2), first coating layers (3) are arranged outside the insulating layers (2), and fireproof flame-retardant fillers (4) are filled between the first coating layers (3) and the insulating layers (2);

a second coating layer (5) is arranged outside the first coating layer (3), and a heat insulation filler (6) is arranged between the first coating layer (3) and the second coating layer (5);

a fire-resistant layer (7) is arranged outside the second coating layer (5), a wear-resistant layer (8) is arranged outside the fire-resistant layer (7), and an anti-corrosion layer (9) is arranged outside the wear-resistant layer (8).

2. A flameproof electric wire according to claim 1, characterized in that a heat-resistant and flame-retardant partition is provided between each conductor core (1), said heat-resistant and flame-retardant partition being located inside the second coating layer (5).

3. A fire-resistant electric wire according to claim 1, wherein the second coating layer (5) comprises an inner lining layer (51) and a connecting layer (52), the inner lining layer (51) is used for coating the heat insulating filler (6) to prevent the heat insulating filler from overflowing, and the connecting layer (52) is used for stabilizing the inner lining layer (51).

4. A fire-resistant electric wire according to claim 1, characterised in that the fire-resistant and fire-retardant filler (4) is a mixture of glass fibres and ceramic fibres and the insulating filler (6) is a synthetic mineral.

5. A fire-resistant electric wire according to claim 1, characterised in that an insulating layer (10) is provided on the outside of the corrosion protection layer (9), and that several insulating anti-extrusion cavities (11) are provided inside the insulating layer (10).

6. A flameproof electric wire according to claim 5, characterised in that the insulating and anti-extrusion chamber (11) has a trapezoidal upper part and an elliptical lower part.

7. A fireproof electric wire according to claim 5, wherein a buffer fire extinguishing layer (12) is arranged outside the isolation layer (10), a plurality of stepped buffer zones (13) are arranged in the buffer fire extinguishing layer (12), and a fire extinguishing agent (14) is filled in the buffer zones (13).

8. A fireproof electric wire according to claim 7, wherein two symmetrically arranged fixing frames (15) are arranged outside the buffering and fire extinguishing layer (12), and fixing through holes (16) are arranged on the fixing frames (15).