CN216772891U

CN216772891U - Fire-resistant electric wire

Info

Publication number: CN216772891U
Application number: CN202122942796.0U
Authority: CN
Inventors: 林�建
Original assignee: Individual
Current assignee: Chongqing Quancheng Industrial Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-06-17
Anticipated expiration: 2031-11-25

Abstract

The utility model relates to the technical field of electric wires, in particular to a fire-resistant electric wire which comprises a plurality of conductive electric cores, wherein the outer surfaces of the conductive electric cores are respectively provided with an inner protective layer, a plurality of filling strips are arranged between the adjacent inner protective layers, one side of each filling strip is provided with a wrapping layer, and the outer surface of each wrapping layer is fixedly connected with an insulating layer. The utility model has the advantages that: the flame-resistant mica layer and the ceramic layer are arranged, so that flame can be effectively prevented from burning to the conductive electric core, the ceramic layer has the effects of fire resistance and high temperature resistance, the device is simple in integral structure and good in fire resistance, has the function of high temperature resistance, has excellent insulating property and mechanical property, the fire-resistant mica layer has good high temperature resistance and fireproof property and a good flame-retardant effect, dense smoke which hinders vision and toxic gas which causes suffocation of people cannot be released when a fire disaster happens, and the flame-resistant mica layer is nonflammable and can inhibit flame spread caused by electric wires.

Description

Fire-resistant electric wire

Technical Field

The utility model relates to the technical field of electric wires, in particular to a fire-resistant electric wire.

Background

The cable is an electric energy or signal transmission device, usually it is made up of several or several groups of wire, the electric wire refers to the wire transmitting the electric energy, divide bare wire, electromagnetic wire and insulated wire, the bare wire has no insulating layer, including copper, aluminium flat wire, aerial stranded conductor and various shapes, it is mainly used in outdoor aerial and indoor busbar and switch box, the electromagnetic wire is the insulated wire generating magnetic field after electrifying or inducing current in the magnetic field, it is mainly used in motor and transformer and other relevant electromagnetic equipment of winding, its conductor is mainly the copper wire, should have thin insulating layer and good electric mechanical property, and heat-resisting, damp-proofing, solvent-resisting property, can obtain different characteristics by choosing different insulating materials, the internal conductive electric core, it is the carrier that the current circulates, the fire prevention of the high-rise building, important building arouses people more and more with the development of society, in order to improve the fire safety level, most of the electric wires adopt flame-retardant cables or fire-resistant cables, and buildings with higher requirements are built, for example, a large museum can select magnesium oxide insulation fire-proof electric wires, and the flame-retardant electric wires only add flame retardants into insulating materials and sheath materials, so the insulating materials used by the flame-retardant cables can still burn, once a fire disaster occurs, the so-called flame-retardant cables still can burn gas bear big fire, and the electric cables can also break down and other faults to cause the fire disaster when running. However, the electric wire having such a structure is poor in fire resistance and is liable to cause accidents.

Therefore, a fire resistant electric wire is required to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a fire-resistant electric wire.

The purpose of the utility model is realized by the following technical scheme: the utility model provides a fire-resistant electric wire, includes a plurality of electrically conductive electric cores, and is a plurality of the surface of electrically conductive electric core all is provided with an inner protective layer, and is adjacent a plurality of be provided with a plurality of packing strips between the inner protective layer, it is a plurality of one side of packing strip is provided with a parcel layer, be provided with a plurality of packing strips between parcel layer and the inner protective layer, the fixed surface of parcel layer is connected with an insulating layer, the fixed surface of insulating layer is connected with a fire resistant mica layer, a ceramic layer of the fixed surface on fire resistant mica layer, an outer protective layer of the fixed surface of ceramic layer is connected with.

Optionally, the plurality of conductive electric cores are formed by regularly and concentrically twisting a plurality of soft round copper wires with the same diameter in a layered manner.

Optionally, the inner protection layer is made of a rubber layer.

Optionally, the material of the wrapping layer is a polycarbonate layer.

Optionally, the insulating layer is an XLPE crosslinked polyethylene insulating layer, and the thickness of the insulating layer is 1.1-1.5 mm.

Optionally, the ceramic layer is made of a ceramic silicon rubber insulating layer.

Optionally, the outer protective layer is a TPU plastic protective layer, the outer protective layer is woven by copper wires, and the thickness of the outer protective layer is 2.6-3.2 mm.

The utility model has the following advantages:

1. according to the novel electric wire, the friction loss of the inner protection layer and the wrapping layer can be prevented through the arranged filling strip, the inner protection layer is prevented from being abraded and broken to cause electric leakage of the electric conduction cell, gaps can be generated in the production process of the inner protection layer and the wrapping layer, if the gaps are not densely filled with materials, the electric conduction cell is unstable, and when the electric wire is produced, the inner protection layer can inevitably lead the middle of the electric conduction cell to cause the increase of the cost of the electric wire and the shortening of the service life.

2. The fire-resistant mica layer and the ceramic layer can effectively prevent flame from burning the conductive electric core, and the ceramic layer has the effects of fire resistance and high temperature resistance.

Drawings

FIG. 1 is a schematic view of a first perspective structure of the present invention;

fig. 2 is a second perspective structural diagram of the present invention.

In the figure: 1-a plurality of conductive electric cores, 2-an inner protective layer, 3-a filling bar, 4-a wrapping layer, 5-an insulating layer, 6-a fire-resistant mica layer, 7-a ceramic layer and 8-an outer protective layer.

Detailed Description

The utility model will be further described with reference to the accompanying drawings, but the scope of the utility model is not limited to the following.

As shown in fig. 1 to 2, a fire-resistant wire comprises a plurality of conductive electric cores 1, wherein an inner protective layer 2 is arranged on the outer surface of each of the plurality of conductive electric cores 1, and a plurality of filling strips 3 are arranged between the adjacent inner protective layers 2, the friction loss of the inner protective layers 2 and the wrapping layers 4 can be prevented through the arranged filling strips 3, so that the inner protective layers 4 are worn and broken to cause the electric leakage of the conductive electric cores 1, gaps can be generated in the production process of the inner protective layers 2 and the wrapping layers 4, if the gaps are not filled with materials compactly, the conductive electric cores 1 are unstable, when the wire is produced, the inner protective layers 2 inevitably lead to the middle of the conductive electric cores 1 to cause the increase of the cable cost and shorten the service life, and the novel use of the wire can prevent the twist of the inner protective layers 2 and the conductive electric cores 1 from generating twist shapes on the surface of the wire in the moving process through the arranged filling strips 3, increase the life-span of electric wire in the use, the material of packing strip 3 is rubber, can protect the cable core effectively, one side of a plurality of packing strips 3 is provided with a parcel layer 4, be provided with a plurality of packing strips 3 between parcel layer 4 and the inner protective layer 2, the fixed surface of parcel layer 4 is connected with an insulating layer 5, the fixed surface of insulating layer 5 is connected with a fire resistant mica layer 6, fire resistant mica layer 6 can obviously block, cut off flame, effectively stop flame direct contact insulating layer 5, and be favorable to the overall structure intensity of reinforcing electric wire, fire resistant mica layer 6 has good high temperature resistance and fire behavior, flame retardant efficiency is good, fixed surface of fire resistant mica layer 6 is connected with a ceramic layer 7, outer protective layer 8 of the fixed surface of ceramic layer 7 is connected with.

As a preferred technical scheme of the utility model: the conductive electric cores 1 are formed by regularly and concentrically twisting a plurality of soft round copper wires with the same diameter in a layered manner.

As a preferred technical scheme of the utility model: the material of the inner protective layer 2 is a rubber layer.

As a preferred technical scheme of the utility model: the material of the wrapping layer 4 is a polycarbonate layer.

As a preferred technical scheme of the utility model: the insulating layer 5 is an XLPE (cross linked polyethylene) insulating layer, the cross linked polyethylene has high temperature resistance and strong insulativity, and the thickness of the insulating layer is 1.1-1.5 mm.

As a preferred technical scheme of the utility model: the ceramic layer 7 is made of a ceramic silicon rubber insulating layer, flame can be effectively prevented from burning to the conductive electric core 1 through the arranged fire-resistant mica layer 6 and the ceramic layer 7, the ceramic layer 7 has the effects of fire resistance and high temperature resistance, the device is simple in overall structure and good in fire resistance, also plays a role in high temperature resistance, has excellent insulating property and mechanical property, the fire-resistant mica layer 6 has good high temperature resistance and fire resistance, is good in flame retardant effect, does not release dense smoke which hinders vision and toxic gas which causes people to suffocate when a fire disaster occurs, does not have flammability, and can inhibit flame spread caused by electric wires.

As a preferred technical scheme of the utility model: the outer protective layer 8 is a TPU plastic protective layer, the outer protective layer 8 is woven by copper wires, and the thickness of the outer protective layer 8 is 2.6-3.2 mm.

In summary, the following steps: according to the novel electric wire, the inner protection layer 2 and the wrapping layer 4 can be prevented from friction loss through the arranged filling strip 3, so that the inner protection layer 4 is prevented from being worn and broken to cause electric leakage of the electric conductive core 1, gaps can be generated in the production process of the inner protection layer 2 and the wrapping layer 4, if the gaps are not filled with materials compactly, the electric conductive core 1 is unstable, when the electric wire is produced, the inner protection layer 2 can inevitably lead to the middle of the electric conductive core 1, so that the cost of the electric wire is increased, and the service life is shortened; according to the utility model, the fire-resistant mica layer 6 and the ceramic layer 7 are arranged, so that flame can be effectively prevented from burning to the conductive electric core 1, the ceramic layer 7 has the effects of fire resistance and high temperature resistance, the device has a simple integral structure and good fire resistance, also has the function of high temperature resistance, has excellent insulating property and mechanical property, the fire-resistant mica layer 6 has good high temperature resistance and fire resistance, has good flame-retardant effect, does not release dense smoke which hinders vision and toxic gas which causes people to suffocate when a fire disaster occurs, has no flammability, and can inhibit flame spread caused by electric wires.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A fire resistant electrical wire, characterized by: including a plurality of electrically conductive electric cores (1), it is a plurality of the surface of electrically conductive electric core (1) all is provided with one inner protective layer (2), and is adjacent be provided with a plurality of packing strips (3) between inner protective layer (2), it is a plurality of one side of packing strip (3) is provided with one parcel layer (4), be provided with a plurality of packing strips (3) between parcel layer (4) and inner protective layer (2), insulating layer (5) of the fixed surface of parcel layer (4) is connected with, the fixed surface of insulating layer (5) is connected with one fire resistant mica layer (6), the fixed surface of fire resistant mica layer (6) is connected with one ceramic layer (7), the fixed surface of ceramic layer (7) is connected with one outer protective layer (8).

2. A fire resistant electrical wire as defined in claim 1, wherein: the conductive electric cores (1) are formed by regularly and concentrically stranding a plurality of soft round copper wires with the same diameter.

3. A fire resistant electrical wire as defined in claim 1, wherein: the inner protection layer (2) is made of a rubber layer.

4. A fire resistant electrical wire as defined in claim 1, wherein: the wrapping layer (4) is made of polycarbonate layer.

5. A fire resistant electrical wire as defined in claim 1, wherein: the insulating layer (5) is an XLPE (cross linked polyethylene) insulating layer, and the thickness of the insulating layer is 1.1-1.5 mm.

6. A fire resistant electrical wire as defined in claim 1, wherein: the ceramic layer (7) is made of a ceramic silicon rubber insulating layer.

7. A fire resistant electrical wire as defined in claim 1, wherein: the outer protective layer (8) is a TPU plastic protective layer, the outer protective layer (8) is woven by copper wires, and the thickness of the outer protective layer (8) is 2.6-3.2 mm.