CN216647916U

CN216647916U - High temperature resistant flexible fireproof cable

Info

Publication number: CN216647916U
Application number: CN202122164546.9U
Authority: CN
Inventors: 赵俊超; 王鹏飞; 王帅鹏
Original assignee: Hongfeng Cable Co ltd
Current assignee: Hongfeng Cable Co ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-05-31
Anticipated expiration: 2031-09-08

Abstract

The utility model discloses a high-temperature-resistance flexible fireproof cable, which relates to the field of electric wires and cables and comprises a plurality of leads, wherein a protective layer is wrapped outside the leads, an oxygen-isolating layer is filled in gaps between the leads and the protective layer, a copper sheath is wrapped outside the protective layer, a fireproof sleeve is wrapped outside the copper sheath, an outer sheath is wrapped outside the fireproof sleeve, and the protective layer consists of an expansion adhesive tape and two heat-insulating layers. According to the utility model, the expansion adhesive tape is arranged, has the characteristics of low and high temperature resistance, can be used in a high-temperature state for a long time, and can be rapidly expanded at a certain high temperature, and when the outer protective layer of the cable is damaged by high temperature and the expansion adhesive tape is exposed, the expansion adhesive tape can be rapidly expanded to form a thicker sealing layer, so that a good protection effect is achieved on the inner part of the cable, and the high temperature resistance and the fireproof capacity of the cable are enhanced.

Description

High temperature resistant flexible fireproof cable

Technical Field

The utility model relates to the field of wires and cables, in particular to a high-temperature-resistant flexible fireproof cable.

Background

The cable is made by one or more mutually insulated conductors and an outer insulation protective layer, and is used for transmitting electric power or information from one place to a wire at another place.

Therefore, it is necessary to invent a high temperature resistant flexible fireproof cable to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-temperature-resistant flexible fireproof cable to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a high-temperature-resistance flexible fireproof cable comprises a plurality of leads, wherein the leads are arranged in number, a protective layer wraps the outer parts of the leads, an oxygen barrier layer is filled in gaps between the leads and the protective layer, a copper sheath wraps the outer side of the protective layer, a fireproof sleeve wraps the outer side of the copper sheath, and an outer sheath wraps the outer side of the fireproof sleeve;

the protective layer consists of an expansion adhesive tape and two heat insulation layers, wherein the two heat insulation layers are respectively arranged on the inner side and the outer side of the expansion adhesive tape.

Optionally, the wire includes a conductor, a fire-resistant layer, a wrapping tape and an insulating layer, the fire-resistant layer wraps the outer side of the conductor, the wrapping tape wraps the outer side of the fire-resistant layer, and the insulating layer wraps the outer side of the wrapping tape.

Optionally, the conductor is formed by twisting a plurality of copper wires.

Optionally, the oxygen barrier layer and the refractory sheath are both made of mica material.

Optionally, the thermal insulation layer is made of a fiberglass material.

The utility model has the technical effects and advantages that:

according to the utility model, the cable has good high-temperature-resistant and fireproof characteristics by arranging the fireproof sleeve, the copper sheath, the oxygen-insulating layer, the protective layer and other layers of fireproof and fireproof heat-insulating materials; the protective layer consists of an expansion adhesive tape and two heat-insulating layers, the expansion adhesive tape has the characteristics of low temperature resistance and high temperature resistance and can be used in a high-temperature state for a long time, the expansion adhesive tape can expand rapidly at a certain high temperature, and when the protective layer outside the cable is damaged by the high temperature and the expansion adhesive tape is exposed, the expansion adhesive tape can expand rapidly to form a thicker sealing layer, so that the internal part of the cable is protected well, and the high-temperature resistance and the fireproof capacity of the cable are enhanced; the heat insulation layers on the inner side and the outer side of the expansion adhesive tape can not only separate the influence of high temperature outside the cable on the inside of the cable, but also ensure that the outer protective layer of the expansion adhesive tape is in a normal state when not damaged.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention.

FIG. 2 is a schematic view of a protective layer structure according to the present invention.

Fig. 3 is a schematic cross-sectional view of a conductive wire according to the present invention.

In the figure: 1. a wire; 11. a conductor; 12. a refractory layer; 13. wrapping belts; 14. an insulating layer; 2. a protective layer; 21. expanding the adhesive tape; 22. a thermal insulation layer; 3. an oxygen barrier layer; 4. a copper sheath; 5. a refractory jacket; 6. an outer sheath.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

In the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected or detachably connected; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The utility model provides a high-temperature-resistance flexible fireproof cable shown in figures 1-3, which comprises a plurality of leads 1, wherein the number of the leads 1 is set to be a plurality, a protective layer 2 is wrapped outside the leads 1, an oxygen-insulating layer 3 is filled in a gap between the leads 1 and the protective layer 2, a copper sheath 4 is wrapped outside the protective layer 2, a fireproof sleeve 5 is wrapped outside the copper sheath 4, an outer sheath 6 is wrapped outside the fireproof sleeve 5, the oxygen-insulating layer 3, the copper sheath 4 and the fireproof sleeve 5 play a fireproof role, and the oxygen-insulating layer 3 and the fireproof sleeve 5 play a good high-temperature-resistance role;

the protective layer 2 is composed of an expansion adhesive tape 21 and two layers of heat insulation layers 22, the two layers of heat insulation layers 22 are respectively arranged on the inner side and the outer side of the expansion adhesive tape 21, the expansion adhesive tape 21 has the characteristics of low resistance and high temperature, the expansion adhesive tape can be used in a high-temperature state for a long time, the expansion adhesive tape 21 can expand rapidly at a certain high temperature, when the outer protective layer of the cable is damaged by high temperature and exposes out of the expansion adhesive tape 21, the expansion adhesive tape 21 can expand rapidly to form a thick sealing layer, the damaged part of the outer protective layer of the cable is filled, the cable is enabled to always keep a good sealing state, the inner part of the cable is protected well, the high temperature resistance and the fireproof capacity of the cable are enhanced, the heat insulation layers 22 can not only obstruct the influence of the outer high temperature of the cable on the inner part of the cable, and ensure that the outer protective layer of the expansion adhesive tape 21 is in a normal state when not damaged.

Wire 1 includes conductor 11, flame retardant coating 12, band 13 and insulating layer 14, and flame retardant coating 12 parcel is in the outside of conductor 11, and band 13 parcel is in the outside of flame retardant coating 12, and insulating layer 14 parcel is in the outside of band 13, and the flame retardant coating 12 of 1 outside of wire has further promoted the high temperature resistant of cable, the characteristic of preventing fires.

The conductor 11 is formed by twisting a plurality of copper wires.

The oxygen isolation layer 3 and the fire-resistant sleeve 5 are both made of mica materials, and the mica has good high-temperature resistance and insulation properties and can protect the conductor 11 from normally running for a certain time in a fire.

The insulation layer 22 is made of a glass fiber material.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a high temperature resistant flexible fireproof cable, includes wire (1), its characterized in that: the number of the wires (1) is set to be a plurality, the outer parts of the wires (1) are wrapped with the protective layers (2), gaps between the wires (1) and the protective layers (2) are filled with the oxygen isolating layers (3), the outer sides of the protective layers (2) are wrapped with the copper sheaths (4), the outer sides of the copper sheaths (4) are wrapped with the fireproof sleeves (5), and the outer sides of the fireproof sleeves (5) are wrapped with the outer sheaths (6);

the protective layer (2) is composed of an expansion adhesive tape (21) and two heat insulation layers (22), wherein the two heat insulation layers (22) are respectively arranged on the inner side and the outer side of the expansion adhesive tape (21).

2. The high temperature resistant flexible fireproof cable of claim 1, wherein: the lead (1) comprises a conductor (11), a fire-resistant layer (12), a wrapping tape (13) and an insulating layer (14), wherein the fire-resistant layer (12) is wrapped on the outer side of the conductor (11), the wrapping tape (13) is wrapped on the outer side of the fire-resistant layer (12), and the insulating layer (14) is wrapped on the outer side of the wrapping tape (13).

3. The high temperature resistant flexible fireproof cable according to claim 2, wherein: the conductor (11) is formed by twisting a plurality of copper wires.

4. The high temperature resistant flexible fireproof cable according to any one of claims 1 or 2, wherein: the oxygen isolation layer (3) and the fire-resistant sleeve (5) are both made of mica materials.

5. The high temperature resistant flexible fireproof cable according to claim 1 or 2, wherein: the thermal insulation layer (22) is made of a glass fiber material.