CN215643736U

CN215643736U - Pressure-resistant flame-retardant cable

Info

Publication number: CN215643736U
Application number: CN202121305145.4U
Authority: CN
Inventors: 张孝通
Original assignee: Jiangsu Jinlun Vehicle Equipment Co ltd
Current assignee: Jiangsu Jinlun Vehicle Equipment Co ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2022-01-25
Anticipated expiration: 2031-06-09

Abstract

The utility model discloses a pressure-resistant flame-retardant cable which is characterized by comprising a cable main body, wherein an outer sheath layer is arranged on the outermost side of the cable main body, a polyolefin flame-retardant layer is arranged on the lower surface of the outer sheath layer, a heat-insulating layer is arranged on the lower surface of the polyolefin flame-retardant layer, a cavity is formed between the heat-insulating layer and a crosslinked polyethylene insulating layer, a plurality of rubber elastic balls are uniformly arranged in the cavity along the circumference, a filling material is arranged on the lower surface of the crosslinked polyethylene insulating layer, four groups of conducting wires are uniformly arranged in the filling material along the circumference, a reinforcing core is arranged in the center of the filling material, the polyolefin flame-retardant layer is arranged to prevent fire from continuously spreading into the cable, the conducting wires are prevented from being damaged due to heating by the heat-insulating layer, the cavity formed between the crosslinked polyethylene insulating layer and the heat-insulating layer and the plurality of rubber elastic balls in the cavity can buffer the impact on the cable, the conductor is prevented from being damaged by impact, and the utility model has reasonable structure and is suitable for popularization.

Description

Pressure-resistant flame-retardant cable

Technical Field

The utility model relates to the technical field of cables, in particular to a pressure-resistant flame-retardant cable.

Background

In the development of the current information era and the network era, the application of the electric wire and the electric cable in various social industry fields is more and more increased, and the demand is more and more diversified, wherein the electric wire and the electric cable used in some important engineering facilities, public places, precision equipment and large-scale machinery have higher and higher requirements on the insulation shielding performance and the flame retardant performance.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pressure-resistant flame-retardant cable to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a withstand voltage flame retarded cable, its characterized in that, includes cable main part, wire, oversheath layer, polyolefin fire-retardant layer, insulating layer, crosslinked polyethylene insulating layer, strengthens core, filler material and rubber bounce ball, the cable main part outside is equipped with the oversheath layer, oversheath layer lower surface is equipped with polyolefin fire-retardant layer, polyolefin fire-retardant layer lower surface is equipped with the insulating layer, form the cavity between insulating layer and the crosslinked polyethylene insulating layer, evenly be equipped with a plurality of rubber bounce balls along the circumference in the cavity, crosslinked polyethylene insulating layer lower surface is equipped with filler material, evenly be equipped with four groups of wires along the circumference in the filler material, filler material central point is equipped with the enhancement core.

Furthermore, the reinforced core is formed by twisting a plurality of strands of anaerobic copper wires.

Furthermore, a shielding layer is arranged on the outermost side of the lead, and a conductor inner core is arranged on the lower surface of the shielding layer.

Furthermore, the conductor inner core is composed of a plurality of groups of thin wires.

Further, the thin wires are made of copper or nickel materials.

Furthermore, the filling material adopts high-quality fine sand, and the fine sand not only has good conductive insulation performance, but also is a poor thermal conductor, thereby being beneficial to blocking the propagation of heat.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model relates to a pressure-resistant flame-retardant cable, which is formed by spirally twisting a plurality of groups of thin wires through a conductor inner core, can provide good flexibility for the conductor inner core while ensuring the transmission of electric energy and signals by the conductor inner core, is easier and more convenient to wire during cable wiring and threading, prevents fire from continuously spreading to the inside of the cable through a polyolefin flame-retardant layer, avoids the damage of the wires caused by heating through a heat-insulating layer, can buffer the impact on the cable through a cavity formed between a crosslinked polyethylene insulating layer and the heat-insulating layer and a plurality of rubber elastic balls in the cavity, avoids the conductor from being damaged by the impact, greatly enhances the pressure resistance of a cable main body, and improves the service life.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of a pressure-resistant flame-retardant cable according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a cable body of a pressure-resistant flame-retardant cable according to an embodiment of the present invention.

Reference numerals:

1. a cable body; 2. a wire; 3. an outer jacket layer; 4. a polyolefin flame retardant layer; 5. a thermal insulation layer; 6. a crosslinked polyethylene insulating layer; 7. a conductor inner core; 8. a cavity; 9. a reinforcing core; 10. a filler material; 11. a shielding layer; 12. a rubber elastic ball; 13. a thin wire.

Detailed Description

The following, with reference to the drawings and the detailed description, further description of the present invention is made:

referring to fig. 1-2, a pressure-resistant flame-retardant cable according to an embodiment of the present invention includes a cable body 1, a conductive wire 2, an outer sheath layer 3, a polyolefin flame-retardant layer 4, a heat-insulating layer 5, a cross-linked polyethylene insulating layer 6, a reinforcing core 9, a filler 10, and a rubber elastic ball 12, an outer sheath layer 3 is arranged on the outermost side of the cable main body 1, a polyolefin flame-retardant layer 4 is arranged on the lower surface of the outer sheath layer 3, the lower surface of the polyolefin flame-retardant layer 4 is provided with a heat insulation layer 5, a cavity 8 is formed between the heat insulation layer 5 and the crosslinked polyethylene insulation layer 6, a plurality of rubber elastic balls 12 are uniformly arranged in the cavity 8 along the circumference, the lower surface of the crosslinked polyethylene insulating layer 6 is provided with a filling material 10, four groups of conducting wires 2 are uniformly arranged in the filling material 10 along the circumference, and a reinforcing core 9 is arranged at the central part of the filling material 10.

Specifically, the reinforcing core 9 is formed by stranding a plurality of strands of oxygen-free copper wires.

Specifically, the outermost side of the wire 2 is provided with a shielding layer 11, and the lower surface of the shielding layer 11 is provided with a conductor inner core 7.

Specifically, the conductor inner core 7 is composed of a plurality of groups of thin wires 13.

Specifically, the thin wire 13 is made of copper or nickel.

Specifically, the filling material 10 is made of high-quality fine sand, and the fine sand not only has good conductive insulation performance, but also is a poor thermal conductor, so that the heat transmission is favorably blocked.

The utility model relates to a pressure-resistant flame-retardant cable, which is formed by spirally twisting a plurality of groups of thin wires 13 through a conductor inner core 7, can provide good flexibility for the conductor inner core 7 while ensuring the transmission of electric energy and signals by the conductor inner core 7, is easier and more convenient to wire during cable wiring, prevents fire from continuously spreading to the inside of the cable through the polyolefin flame-retardant layer 4, avoids the wires 2 from being damaged due to heating through the heat-insulating layer 5, can buffer the impact on the cable through a cavity 8 formed between a crosslinked polyethylene insulating layer 6 and the heat-insulating layer 5 and a plurality of rubber elastic balls 12 in the cavity 8, avoids the conductor 2 from being damaged due to the impact, greatly enhances the pressure resistance of a cable main body 1, and prolongs the service life.

In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the utility model as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressure-resistant flame-retardant cable is characterized by comprising a cable main body (1), wires (2), an outer sheath layer (3), a polyolefin flame-retardant layer (4), a heat-insulating layer (5), a cross-linked polyethylene insulating layer (6), a reinforcing core (9), a filling material (10) and rubber elastic balls (12), wherein the outer sheath layer (3) is arranged on the outermost side of the cable main body (1), the polyolefin flame-retardant layer (4) is arranged on the lower surface of the outer sheath layer (3), the heat-insulating layer (5) is arranged on the lower surface of the polyolefin flame-retardant layer (4), a cavity (8) is formed between the heat-insulating layer (5) and the cross-linked polyethylene insulating layer (6), a plurality of rubber elastic balls (12) are uniformly arranged in the cavity (8) along the circumference, the filling material (10) is arranged on the lower surface of the cross-linked polyethylene insulating layer (6), and four groups of wires (2) are uniformly arranged in the filling material (10) along the circumference, the central part of the filling material (10) is provided with a reinforced core (9).

2. A pressure-resistant flame-retardant cable as claimed in claim 1, wherein said reinforcing core (9) is formed by stranding a plurality of oxygen-free copper wires.

3. A voltage-resistant flame-retardant cable according to claim 1, wherein the outermost side of the conductor (2) is provided with a shielding layer (11), and the lower surface of the shielding layer (11) is provided with a conductor core (7).

4. A voltage-resistant flame-retardant cable according to claim 3, wherein the conductor core (7) is composed of a plurality of groups of thin wires (13).

5. A voltage-resistant flame-retardant cable according to claim 4, wherein the thin conducting wire (13) is made of copper or nickel.