CN217405130U

CN217405130U - High-temperature-resistant and soft flame-retardant communication cable

Info

Publication number: CN217405130U
Application number: CN202220385796.7U
Authority: CN
Inventors: 邰向群; 杨伟伟; 冯磊磊; 郭剑; 杨建�; 吴永; 杨永平; 李琦
Original assignee: Baosheng Science and Technology Innovation Co Ltd
Current assignee: Baosheng Science and Technology Innovation Co Ltd
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-09-09
Anticipated expiration: 2032-02-24

Abstract

The utility model discloses a fire-retardant communication cable of high temperature resistant, soft type, include: the core group, core group include core one, core two, and core one sets up in the central point of core group puts, and core two has many and surrounds in the periphery of core one side by side, and core one all includes with core two: the thickness of the first core is larger than that of the second core, and the insulating layer is coated on the outer side of the conductor; the first heat insulation layer covers the outer side of the wire core group; the shielding layer is coated on the outer side of the first heat insulation layer; the second heat insulation layer is wrapped on the outer side of the shielding layer; and the sheath layer is coated on the outer side of the second heat insulation layer. The cable rounding degree is improved by increasing the thickness of the insulating layer of the core, so that the outer diameter of the product cable is reduced, the cable has good flexibility and conductivity, and the heat insulation performance of the cable is improved by arranging the first heat insulation layer and the second heat insulation layer.

Description

High-temperature-resistant and soft flame-retardant communication cable

Technical Field

The utility model relates to the technical field of cables, in particular to fire-retardant communication cable of high temperature resistant, soft type.

Background

The cables used in the current communication systems are mainly of two types: the low-capacitance polyolefin insulation polyvinyl chloride sheath communication cable has good signal transmission performance and can meet the matching requirements of system components, but the insulation and sheath have low mechanical performance and low temperature resistance level; the other is a fluoroplastic insulated and sheathed cable, although the cable has excellent signal transmission performance and can adapt to harsh field use environment, the flexibility of the finished cable is poor due to the physical properties of the insulation and the sheath material, so that the cable cannot adapt to the requirements of equipment installation and use, particularly the requirements of component manufacturing cannot be met due to the ultra-smoothness of the surface and electrostatic dust collection.

SUMMERY OF THE UTILITY MODEL

This application is through providing a fire-retardant communication cable of high temperature resistant, soft type for improve the high temperature resistant, corrosion-resistant, the resistant bending property of cable.

The embodiment of the application provides a fire-retardant communication cable of high temperature resistant, soft type, includes:

the wire core group, the wire core group includes core one, core two, core one set up in the central point of wire core group puts, core two have many and parallel surround in the periphery of core one, core one all includes with core two: the insulating layer covers the outer side of the conductor;

the first heat insulation layer covers the outer side of the wire core group;

the shielding layer covers the outer side of the first heat insulation layer;

the second heat insulation layer is wrapped on the outer side of the shielding layer;

and the sheath layer is coated on the outer side of the second heat insulation layer.

On the basis of the above embodiment, the embodiment of the present application may be further modified as follows:

in one embodiment of the present application: the conductor is a sixth type silver-plated soft round copper conductor. The beneficial effect of this step: the conductor has good flexibility, conductivity and corrosion resistance.

In one embodiment of the present application: the insulating layer is a fluorinated ethylene propylene insulating layer. The beneficial effect of this step: the insulating layer has high temperature resistance, high electric strength, excellent flame retardant property, excellent corrosion resistance and excellent signal transmission performance under high frequency.

In one embodiment of the present application: one core I is arranged, seven cores are arranged in the core II, the insulating layers of the core I are tangent to the insulating layers of the core II, the insulating layers of the adjacent core II are tangent to each other, and the thickness of the insulating layer of the core I is larger than that of the insulating layer of the core II. The beneficial effect of this step: through the increase in the thickness of the insulating layer of the core two that is located the center to this improves the cable roundness, is convenient for reduce product cable external diameter, makes the cable have good compliance, electric conductivity.

In one embodiment of the present application: the first heat insulation layer and the second heat insulation layer are both polytetrafluoroethylene foam tapes. The beneficial effect of this step: the polytetrafluoroethylene foam tape is wrapped to form an uninterrupted vacuum-type heat insulation barrier, so that the core group is prevented from being damaged in the vulcanization process, and the heat resistance of the cable is improved.

In one embodiment of the present application: the shielding layer is a tinned copper wire braid. The beneficial effect of this step: thereby improving the flexibility and bending resistance of the cable.

In one embodiment of the present application: the sheath layer is a chloroprene rubber sheath layer. The beneficial effect of this step: thereby improving the mechanical strength and flame retardancy of the cable.

One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

1. the conductor adopts the soft round copper conductor of silver-plated of the super soft structure of sixth class to through increasing the thickness of a core insulating layer, improve the cable roundness degree, with this reduction product cable external diameter, make the cable have good compliance, electric conductivity.

2. The insulating material is made of the fluorinated ethylene propylene resin, and the chloroprene rubber sheath meets the requirements of the cable on high temperature resistance, corrosion resistance and flame retardance, and improves the signal transmission performance under high frequency;

3. the polytetrafluoroethylene foam tape is wrapped to form an uninterrupted vacuum-type heat insulation barrier, so that the heat resistance of the cable is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of the present invention.

The cable comprises a wire core group 1, a first wire core 101, a second wire core 102, a conductor 103, an insulating layer 104, a first heat insulation layer 2, a shielding layer 3, a second heat insulation layer 4 and a sheath layer 5.

Detailed Description

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; the mechanical connection can be realized by selecting a proper connection mode in the prior art, such as welding, riveting, threaded connection, bonding, pin connection, key connection, elastic deformation connection, buckle connection, interference connection and injection molding; or an electrical connection, transmitting energy or signals by electricity; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

As shown in fig. 1, a high temperature resistant, flexible, flame retardant communication cable comprises, in order from inside to outside, a core assembly 1, a first thermal insulation layer 2, a shielding layer 3, a second thermal insulation layer 4, and a sheath layer 5.

As shown in fig. 1, the core group 1 includes: core one 101, core two 102, core one 101 and core two 102 all include: the conductor 103 is a silver-plated soft round copper conductor with a sixth type of super-soft structure, the conductor 103 is made of the material with good flexibility, conductivity and corrosion resistance, the insulating layer 104 is made of polyfluorinated ethylene propylene resin, and the material has the advantages of high temperature resistance level, high electrical strength, excellent flame retardance, strong corrosion resistance and good signal transmission performance at high frequency.

As shown in fig. 1, there is one first core 101, the first core 101 is disposed at the center of the first core group 1, the second core 102 has seven cores and is juxtaposed around the periphery of the first core 101, the insulating layer 104 of the first core 101 is tangent to the insulating layer 104 of the second core 102, the insulating layers 104 of the adjacent second cores 102 are tangent to each other, the thickness of the insulating layer 104 of the first core 101 is greater than that of the insulating layer 104 of the second core 102, that is, the insulating thickness of the first core 101 at the center of the first core group 1 is increased to improve the cable formation roundness, so as to reduce the outer diameter of the product cable, and the cable has good flexibility and conductivity.

As shown in fig. 1, the first heat insulation layer 2 is coated on the outer side of the wire core group 1, the second heat insulation layer 4 is coated on the outer side of the shielding layer 3, the first heat insulation layer 2 and the second heat insulation layer 4 are formed by wrapping polytetrafluoroethylene foam tapes, namely, the tape with a wrapping layer with extremely high foaming degree is used as a foaming heat insulation layer, so that an uninterrupted vacuum type heat insulation barrier is formed, the heat insulation performance of the cable is improved, and the wire core group 1 can be ensured to keep good performance at high temperature.

As shown in figure 1, the shielding layer 3 is coated on the outer side of the first heat insulation layer 2, the shielding layer 3 is a tinned copper wire braid layer, the material can meet the requirement on shielding performance, and the cable is guaranteed to have good flexibility and bending resistance.

As shown in fig. 1, the sheath layer 5 is coated on the outer side of the thermal insulation layer two 4, the sheath layer 5 is a neoprene sheath layer, and the material has the characteristics of high mechanical strength and good flame retardant property, and has excellent weather-proof environmental characteristics, and particularly, the extruded surface of the material can meet the requirements of the integrity and the reliability of the assembly.

The high-temperature-resistant and soft flame-retardant communication cable has the following characteristics:

1. the conductor 103 adopts a silver-plated soft round copper conductor with a sixth type of super-soft structure, and the thickness of the insulating layer 104 of the core I101 is increased, so that the cable roundness is improved, the outer diameter of the cable is reduced, and the cable has good flexibility and conductivity.

3. the outer sheath material is chloroprene rubber, and the characteristics of this type of rubber are that the performance is excellent but the temperature of vulcanization is high, pressure is big, have formed incessant "vacuum" type heat-insulating barrier through polytetrafluoroethylene foam tape around the package, avoid core group 1 to receive the damage in the vulcanization process.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A high temperature resistant, flexible, flame retardant communication cable, comprising:

the wire core group, the wire core group includes core one, core two, core one set up in the central point of wire core group puts, core two have many and side by side surround in the periphery of core one, core one all includes with core two: the insulating layer covers the outer side of the conductor;

the first heat insulation layer covers the outer side of the wire core group;

the shielding layer covers the outer side of the first heat insulation layer;

2. The high temperature resistant, flexible, flame retardant communication cable of claim 1 wherein said conductor is a type six silver plated soft round copper conductor.

3. The high temperature resistant, flexible, flame retardant communications cable of claim 1 wherein said insulation layer is a fluorinated ethylene propylene insulation layer.

4. The fire resistant, flexible, fire retardant communication cable of claim 1 wherein said first core has one piece, said second core has seven pieces, the insulation of said first core is tangent to the insulation of said second core, the insulation of adjacent said second core is tangent, the thickness of said insulation of said first core is greater than the thickness of said insulation of said second core.

5. The high temperature resistant, flexible, flame retardant communication cable of claim 1 wherein said first and second insulative layers are polytetrafluoroethylene foam tape.

6. The high temperature resistant, flexible, flame retardant communication cable of claim 1 wherein said shield is a braided layer of tinned copper wire.

7. The high temperature resistant, flexible, flame retardant communication cable of claim 1, wherein said jacket layer is a neoprene jacket layer.