CN213277585U - High tensile shielding function data communication bus - Google Patents

Abstract

The utility model discloses a high tensile shielding function data communication bus, which comprises an inner core, wherein the inner core is formed by twisting a current leakage line, an insulated wire and a filling line; the shielding layer is coated outside the inner core; the armor layer is coated outside the shielding layer; the sheath layer is extruded outside the armor layer. The utility model discloses the setting of the earial drainage line is inside at the shielding layer and forms the inner core with insulating wire and filling line cooperation transposition, and the earial drainage line plays the earial drainage effect with shielding layer abundant contact when as the packing, can effectively reduce the cable external diameter, and the inside relative displacement phenomenon of cable when avoiding the cable bending simultaneously avoids insulating damage, improves cable tensile, antitorque commentaries on classics, interference killing feature.

Description

High tensile shielding function data communication bus

Technical Field

The utility model relates to a communication cable technical field, concretely relates to high tensile shielding function data communication bus.

Background

The functional data communication bus is mainly applied to connection among rolling stocks, communication cabinets, equipment and the like, and the cable is required to have the characteristics of high tensile strength, high interference resistance, chemical resistance, moisture resistance and the like due to the special environment of the cable.

The general structural form of the functional data communication cable in the current market is as follows: the insulation is made of two middle-high density polyethylene or physical foaming polyolefin, a layer of aluminum-plastic composite tape and a leakage line are coated after the two pieces are twisted into a cable, copper wires or steel wires are used for weaving and armoring, and a polyolefin sheath is used for forming the insulation.

The cable with the structure has the following defects: 1. the outer diameter of the cable is large, and the leakage line increases the outer diameter of the cable outside the wrapping tape, so that the laying of the cable in a rolling stock is influenced; 2. because the leakage line is a stranded conductor and needs to be placed longitudinally, the conductor, the wrapping tape and the insulation have a displacement phenomenon when the cable is bent and pulled, and insulation damage is caused.

Therefore, it is necessary to develop a new type of functional data communication bus.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high tensile shielding function data communication bus, which solves the problem that the leakage line increases the outer diameter of the cable outside the wrapping belt in the prior art and influences the laying; the leakage line is a stranded conductor and needs to be placed longitudinally, and when the cable is bent and pulled, displacement phenomena exist among the conductor, the wrapping tape and the insulation, so that the technical problem of insulation damage is caused.

In order to realize the purpose, the technical scheme of the utility model is that:

a high tensile shield function data communication bus comprising:

the inner core is formed by twisting a leakage line, an insulated wire and a filling line;

the shielding layer is coated outside the inner core;

the armor layer is coated outside the shielding layer;

the sheath layer is extruded outside the armor layer.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses the setting of the earial drainage line is inside at the shielding layer and forms the inner core with insulating wire and filling line cooperation transposition, and the earial drainage line plays the earial drainage effect with shielding layer abundant contact when as the packing, can effectively reduce the cable external diameter, and the inside relative displacement phenomenon of cable when avoiding the cable bending simultaneously avoids insulating damage, improves cable tensile, antitorque commentaries on classics, interference killing feature.

Furthermore, the outer diameters of the current leakage line and the filling line are the same, the inner core is formed by star-twisting one current leakage line, one filling line and two insulated wires, the two insulated wires are symmetrically arranged, and the current leakage line and the filling line are symmetrically arranged.

By adopting the scheme, the structure compactness is further improved and the outer diameter of the cable is reduced by adopting a symmetrical star-twisted structure; meanwhile, the electric performance is kept, so that the current leakage line and the shielding layer are tightly bonded together, and the cable is ensured to have good anti-interference performance.

Further, the current leakage line, the insulated conducting wire and the filling line are twisted according to a constant pitch to form the inner core.

Furthermore, the drain line comprises a drain conductor and a polymer conductive material extruded outside the drain conductor.

Further, the insulated wire comprises a communication conductor and foamed polyolefin insulation material extruded outside the communication conductor.

Further, the filling line is a PE filling line.

Furthermore, the shielding layer is an aluminum-plastic composite belt layer.

Further, the sheath layer is a polyolefin sheath.

Further, the armor layer is a superconducting magnetic steel wire braid layer.

By adopting the scheme, the armor layer is woven by the steel wires, the radiation resistance, the interference resistance and the torsion resistance of the cable are improved, a good tensile effect is achieved, the tensile force can be larger than the weight of the cable by more than 20 times, and meanwhile, the superconducting magnetic steel wires have a good shielding effect on magnetic interference.

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 an embodiment of the present invention.

Shown in the figure:

1. a flow relief line; 101. a drain conductor; 102. a polymer conductive material;

2. an insulated wire; 201. a communication conductor; 202. foamed polyolefin insulation;

3. filling the line;

4. aluminum-plastic composite belt layers;

5. a polyolefin jacket;

6. the superconducting magnetic steel wire braid.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

As shown in fig. 1, the data communication bus with a high tensile shielding function provided by this embodiment includes an inner core, a shielding layer, an armor layer, and a sheath layer.

Wherein the inner core is formed by twisting a leakage current line 1, an insulated conducting wire 2 and a filling wire 3.

The drain line 1 includes a drain conductor 101 and a polymer conductive material 102 extruded outside the drain conductor 101, the polymer conductive material 102 is conductive polyaniline, and other polymer conductive materials 102 may also be applied to the present embodiment.

The insulated wire 2 includes a communication conductor 201 and a foamed polyolefin insulation 202 extruded outside the communication conductor 201.

The filling line 3 is a PE filling line 3.

The leakage current conductor 101 and the communication conductor 201 are both standard class 5 or class 6 tinned conductors, so that the strength of the cable is improved.

The outer diameters of the flow leakage line 1 and the filling line 3 are the same and are both 1.4 mm; the outer diameter of the insulated wire 2 is 2.4 mm.

The inner core is formed by star-twisting one leakage line 1, one filling line 3 and two insulated wires 2, wherein the two insulated wires 2 are symmetrically arranged, and the leakage line 1 and the filling line 3 are symmetrically arranged.

The structure compactness is further improved and the outer diameter of the cable is reduced by adopting a symmetrical star-twisted structure; meanwhile, the electric performance is kept, so that the current leakage line 1 is tightly bonded with the shielding layer, and the cable is ensured to have good anti-interference performance.

The leakage flow line 1, the insulated conducting wire 2 and the filling line 3 are twisted into an inner core according to a constant pitch.

The shielding layer is coated outside the inner core and is an aluminum-plastic composite belt layer 4.

The armor layer is coated outside the shielding layer, and the armor layer is a superconducting magnetic steel wire braid layer 6.

The armor layer is woven by adopting steel wires, so that the radiation resistance, the interference resistance and the torsion resistance of the cable are improved, a good tensile effect is achieved, the tensile resistance is more than 20 times of the weight of the cable, and meanwhile, the superconducting magnetic steel wire has a good shielding effect on magnetic interference.

The sheath layer is extruded outside the armor layer and is a polyolefin sheath 5.

This embodiment lets out streamline 1 setting inside the shielding layer and with insulating wire 2 and 3 cooperation twists formation inner cores of filling wire, let out streamline 1 when as the packing with shielding layer fully contact play the effect of letting out, can effectively reduce the cable external diameter, the inside relative displacement phenomenon of cable when avoiding the cable bending simultaneously avoids insulating damage, improves cable tensile, antitorque twist, interference killing feature.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

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 (9)

1. A high tensile shield function data communication bus, comprising:

the inner core is formed by twisting a leakage line, an insulated wire and a filling line;

the shielding layer is coated outside the inner core;

the armor layer is coated outside the shielding layer;

the sheath layer is extruded outside the armor layer.

2. The data communication bus with high tensile shielding function according to claim 1, wherein the outer diameters of the current leakage line and the filling line are the same, the inner core is formed by star-twisting one current leakage line, one filling line and two insulated wires, the two insulated wires are symmetrically arranged, and the current leakage line and the filling line are symmetrically arranged.

3. The high tensile barrier function data communication bus according to claim 1, wherein said leakage lines, insulated conductive wires and filler wires are twisted at a constant pitch to form said core.

4. The data communication bus with high tensile shielding function according to claim 1, wherein the drain line comprises a drain conductor and a polymer conductive material extruded outside the drain conductor.

5. The data communication bus with high tensile shielding function according to claim 1, wherein the insulated conductor comprises a communication conductor and foamed polyolefin insulation extruded outside the communication conductor.

6. The data communication bus with high tensile shielding function according to claim 1, wherein the filler wire is a PE filler wire.

7. The high tensile shielding function data communication bus according to claim 1, wherein said shielding layer is an aluminum plastic composite tape layer.

8. The high tensile shielding function data communication bus of claim 1, wherein said sheath layer is a polyolefin sheath.

9. The data communication bus with high tensile shielding function according to any one of claims 1 to 8, wherein the armor layer is a superconducting magnetic steel wire braid layer.

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