CN215643737U

CN215643737U - Durable flame-retardant cable

Info

Publication number: CN215643737U
Application number: CN202121305324.8U
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 durable flame-retardant cable which is characterized by comprising a cable main body, an outer protective layer, a filling material, an insulating layer, a conductor inner core, thin wires and a reinforcing core, wherein the outer protective layer is arranged on the outer side of the cable main body and comprises a polyvinyl chloride insulating layer, a low-smoke halogen-free material layer, an isolation fireproof layer, an aluminum wire armoring layer and a metal shielding layer, the low-smoke halogen-free material layer is arranged on the lower surface of the polyvinyl chloride insulating layer, the isolation fireproof layer is arranged on the lower surface of the low-smoke halogen-free material layer, the aluminum wire armoring layer is arranged on the lower surface of the isolation fireproof layer, the metal shielding layer is arranged on the lower surface of the aluminum wire armoring layer, the filling material is arranged on the lower surface of the metal shielding layer, four groups of wires are uniformly arranged along the circumference in the filling material, the insulating layer is arranged on the outer side of the wires, the conductor inner core is arranged on the lower surface of the insulating layer, and the reinforcing core is arranged in the center of the filling material, the utility model has reasonable structure and is suitable for popularization.

Description

Durable flame-retardant cable

Technical Field

The utility model relates to the technical field of cables, in particular to a durable flame-retardant 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 cable in the prior art does not have certain fire resistance and flame retardance, only has poor flame retardant effect and high manufacturing cost; the traditional cable is in consideration of strength, and the cable is generally made thick and hard, so that the difficulty of cable routing is high.

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

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to provide a durable flame retardant cable to solve the problems set forth in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: a durable flame-retardant cable is characterized by comprising a cable main body, an outer protective layer, a filling material, an insulating layer, a conductor inner core, a thin wire and a reinforcing core, the outer side of the cable main body is provided with an outer protective layer which comprises a polyvinyl chloride insulating layer, a low-smoke halogen-free material layer, an isolation fireproof layer, an aluminum wire armor layer and a metal shielding layer, the lower surface of the polyvinyl chloride insulating layer is provided with a low-smoke halogen-free material layer, the lower surface of the low-smoke halogen-free material layer is provided with an isolation fireproof layer, the lower surface of the isolation fireproof layer is provided with an aluminum wire armor layer, the lower surface of the aluminum wire armor layer is provided with a metal shielding layer, the lower surface of the metal shielding layer is provided with a filling material, four groups of conducting wires are uniformly arranged in the filling material along the circumference, the outer side of the wire is provided with an insulating layer, the lower surface of the insulating layer is provided with a conductor inner core, and the center of the filling material is provided with a reinforcing core.

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

Furthermore, the insulating layer is made of rubber, the metal shielding layer is a glass fiber woven net, and copper wires are doped in the glass fiber woven net.

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 durable 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 of the conductor inner core while ensuring the transmission of electric energy and signals by the conductor inner core, ensures that a polyvinyl chloride insulating layer is more easily and conveniently arranged to enhance the electric insulation property during the wiring and threading of the cable, is relatively stable and is not easy to corrode, has good heat resistance, greatly enhances the fire resistance of the cable by arranging an isolation fireproof layer, well improves the tensile resistance, the pressure resistance and the bending resistance of the cable through aluminum wire armoring, is provided with a metal shielding layer to enhance the anti-interference capability of the cable, has good shielding effect, and is convenient for current transmission.

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 durable flame retardant cable according to an embodiment of the utility model;

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

Reference numerals:

1. a cable body; 2. an outer protective layer; 3. a polyvinyl chloride insulating layer; 4. a low smoke zero halogen material layer; 5. an insulating fire barrier layer; 6. aluminum wire armoring; 7. a metal shielding layer; 8. a filler material; 9. a reinforcing core; 10. an insulating layer; 11. a conductor inner core; 12. a thin wire; 13. and (4) conducting wires.

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, the durable flame retardant cable according to the embodiment of the utility model is characterized by comprising a cable main body 1, an outer protective layer 2, a filling material 8, an insulating layer 10, a conductor inner core 11, a fine wire 12 and a reinforcing core 9, wherein the outer protective layer 2 is arranged on the outer side of the cable main body 1, the outer protective layer 2 comprises a polyvinyl chloride insulating layer 3, a low smoke zero halogen material layer 4, an isolation fireproof layer 5, an aluminum wire armor layer 6 and a metal shielding layer 7, the low smoke zero halogen material layer 4 is arranged on the lower surface of the polyvinyl chloride insulating layer 3, the isolation fireproof layer 5 is arranged on the lower surface of the low smoke zero halogen material layer 4, the aluminum wire armor layer 6 is arranged on the lower surface of the isolation fireproof layer 5, the metal shielding layer 7 is arranged on the lower surface of the aluminum wire armor layer 6, the filling material 8 is arranged on the lower surface of the metal shielding layer 7, four groups of wires 13 are uniformly arranged in the filling material 8 along the circumference, an insulating layer 10 is arranged on the outer side of the lead 13, a conductor inner core 11 is arranged on the lower surface of the insulating layer 10, and a reinforcing core 9 is arranged in the center of the filling material 8.

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

Specifically, the insulating layer 10 is made of rubber, the metal shielding layer 7 is a glass fiber woven mesh, and copper wires are doped in the glass fiber woven mesh.

Specifically, the conductor inner core 11 is composed of a plurality of groups of thin wires 12.

Specifically, the thin wires 12 are made of copper or nickel materials.

Specifically, the filling material 8 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 heat transmission.

The utility model is a durable flame-retardant cable, which is formed by spirally twisting a plurality of groups of thin wires 12 through a conductor inner core 11, can provide good flexibility for the conductor inner core 11 while ensuring the transmission of electric energy and signals by the conductor inner core 11, so that the polyvinyl chloride insulating layer 3 is more easily and conveniently arranged to enhance the electric insulation property during the wiring and threading of the cable, the polyvinyl chloride insulating layer 3 is more stable and is not easily corroded, and has good heat resistance, the fire resistance of the cable is greatly enhanced by arranging an isolation fireproof layer 5, the tensile resistance, the pressure resistance and the bending resistance of the cable are well improved by an aluminum wire armor layer 6, and the metal shielding layer 7 is arranged to enhance the anti-interference capability of the cable, so that the shielding effect is good, the transmission of current is convenient.

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 durable flame-retardant cable is characterized by comprising a cable main body (1), an outer protective layer (2), a filling material (8), an insulating layer (10), a conductor inner core (11), a thin wire (12) and a reinforcing core (9), wherein the outer protective layer (2) is arranged on the outer side of the cable main body (1), the outer protective layer (2) comprises a polyvinyl chloride insulating layer (3), a low-smoke halogen-free material layer (4), an isolation fireproof layer (5), an aluminum wire armor layer (6) and a metal shielding layer (7), the lower surface of the polyvinyl chloride insulating layer (3) is provided with the halogen-free low-smoke material layer (4), the lower surface of the halogen-free low-smoke material layer (4) is provided with the isolation fireproof layer (5), the lower surface of the isolation fireproof layer (5) is provided with an aluminum wire armor layer (6), the lower surface of the aluminum wire armor layer (6) is provided with the metal shielding layer (7), the lower surface of the metal shielding layer (7) is provided with the filling material (8), evenly be equipped with four groups wire (13) along the circumference in filler (8), wire (13) outside is equipped with insulating layer (10), insulating layer (10) lower surface is equipped with conductor inner core (11), filler (8) central authorities are equipped with reinforcing core (9).

2. A durable flame retardant cable according to claim 1, wherein the reinforcing core (9) is stranded of oxygen free copper wires.

3. A durable flame retardant cable according to claim 1, wherein the insulating layer (10) is made of rubber, the metal shielding layer (7) is a woven glass fiber mesh, and the woven glass fiber mesh is internally doped with copper wires.

4. A durable flame retardant cable according to claim 1, wherein the conductor core (11) is composed of a plurality of groups of thin conductive wires (12).

5. A durable flame retardant cable according to claim 1, wherein the thin conducting wires (12) are made of copper or nickel.