CN217361213U - Multi-core cable for digital communication - Google Patents

Abstract

The utility model discloses a multi-core cable for digital communication, which comprises a plurality of core wires, wherein each core wire comprises two wires for data transmission, the wires are arranged in parallel and are separated from each other, insulators for coating the two wires are arranged in the core wires, and a first shielding layer and a core wire sleeve are sequentially arranged outside the insulators; a filling layer disposed between the core wires; the moisture-proof layer covers the core wire and the filling layer; the second shielding layer is arranged outside the moisture-proof layer and covers the moisture-proof layer; and the sheath is arranged outside the second shielding layer and wraps the second shielding layer. The multi-core cable for digital communication of this embodiment has good data transmission efficiency, waterproof performance and interference killing feature, can satisfy the wiring demand of modern intelligent building crowd.

Description

Multi-core cable for digital communication

Technical Field

The utility model relates to a communications facilities field especially relates to a multicore cable is used in digital communication.

Background

Modern communication systems are life lines in the information era, and at present, with the continuous improvement of the technological level, people have higher and higher requirements on the transmission efficiency and the reality degree of information. And the communication cable plays an important role in the process of information transfer. Especially in modern intelligent building groups, especially in high-grade residential areas and high-grade office building groups, the high-speed and anti-interference multi-core cable for digital communication needs to be equipped with the high-speed and anti-interference multi-core cable for the digital communication. However, in the past buildings, network cables are mostly arranged for data transmission, the traditional network data technology is adopted, most network data are transmitted by single lines, the data transmission efficiency is low, the distortion degree is high, and the use requirements of modern people cannot be met gradually.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a multicore cable is used in digital communication, inside is provided with a plurality of heart yearns that are used for transmitting data, and every heart yearn includes two transmission wires, and every heart yearn shields alone, improves data transmission efficiency and interference killing feature.

According to the utility model discloses a multicore cable for digital communication of first aspect embodiment includes: the cable comprises a plurality of core wires, a first shielding layer and a core wire sleeve, wherein each core wire comprises two conducting wires for data transmission, the conducting wires are arranged in parallel and are separated from each other, an insulator for coating the two conducting wires is arranged in each core wire, and the first shielding layer and the core wire sleeve are sequentially arranged outside the insulator; a filling layer disposed between the core wires; the moisture-proof layer coats the core wire and the filling layer; the second shielding layer is arranged outside the moisture-proof layer and covers the moisture-proof layer; and the sheath is arranged outside the second shielding layer and covers the second shielding layer.

According to the utility model discloses multicore cable for digital communication of first aspect embodiment has following beneficial effect at least: the multi-core cable for digital communication is provided with a plurality of core wires for data transmission, each core wire comprises two wires which are arranged in parallel, and the data transmission efficiency of the cable is effectively improved; each core wire is provided with a first shielding layer for independent shielding, and a second shielding layer is arranged outside the cable for double shielding, so that the anti-interference capability of the cable is improved; still be provided with the dampproofing course in the cable, possess good waterproof performance. The multi-core cable for digital communication of this embodiment has good data transmission efficiency, waterproof performance and interference killing feature, can satisfy the wiring demand of modern intelligent building crowd.

According to the utility model discloses a multicore cable for digital communication of first aspect, the insulator is once extrusion moulding's foaming thermoplastic material. The heated fluid foamed thermoplastic material is extruded into the core wire, and the foamed thermoplastic material is rapidly cooled to form an insulator for covering the two wires.

According to the utility model discloses the first aspect the multicore cable is used in digital communication, first shielding layer is the cladding the metal film layer of insulator utilizes the metal film to shield, can further improve the waterproof performance of heart yearn simultaneously.

According to the utility model discloses the multicore cable for digital communication of first aspect, the filling layer is the flame retardant material of velvet form, improves the security of cable.

According to the utility model discloses the first aspect the multicore cable is used in digital communication, be provided with a plurality of reinforcement cores in the filling layer, the reinforcement core distributes between the heart yearn, through the structure of reinforcement core strengthening cable.

According to the utility model discloses the first aspect multicore cable is used in digital communication, the dampproof course is the aluminium rete, can effectively completely cut off aqueous vapor infiltration cable, plays certain shielding effect simultaneously.

According to the utility model discloses the multicore cable for digital communication of first aspect, the second shielding layer is the metal mesh layer, both plays the shielding effect, strengthens the structure of cable simultaneously.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of the multi-core cable for digital communication according to the present invention.

The reference numbers illustrate:

a core wire 100; a conductive line 110; an insulator 120; a first shielding layer 130; a core wire sheath 140; a filling layer 200; a moisture barrier layer 300; a second shielding layer 400; a sheath 500; the core 600 is reinforced.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, and a plurality of means are two or more. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1, the present invention provides a multi-core cable for digital communication, which comprises a sheath 500, a second shielding layer 400, a moisture-proof layer 300, a filler 200 and a plurality of core wires 100 from outside to inside in sequence.

It should be noted that the sheath 500 is made of an insulating material, and has the characteristics of high temperature resistance, cold resistance, wear resistance and the like, the use of the sheath 500 can prolong the service life of the cable, avoid the damage of external mechanical damage to the cable, and the use of the insulating material can isolate the electrified conductors with different potentials in the electrical equipment, and can also play a role in supporting and fixing. The tangent plane of sheath 500 can be ring shape, also can be the square, uses different sheath 500 can the different installation environment of adaptation, improves the adaptation scope of sheath 500 installation, is favorable to improving the installation effectiveness.

In some embodiments, second shield layer 400 is disposed within jacket 500, which may reduce wear on second shield layer 400 during cable installation, further protecting core 100. The second shielding layer 400 can improve the distribution of the electric field and reduce partial discharge of the cable. The second shielding layer 400 is a metal mesh layer, which can further shield the electric field, reduce the interference of the external electric field to the core wire 100, also reduce the interference of the core wire 100 to the external electric field, and simultaneously improve the structural strength and flexibility of the cable.

Referring to fig. 1, two wires 110 for data transmission are disposed in a core wire 100, the wires 110 are made of conductive copper wires, the wires 110 can transmit data, and the wires 110 are disposed in parallel and spaced apart from each other. The positions of the two wires 110 can be staggered or arranged in parallel, the relative positions of the wires 110 are not limited, and only the wires 110 can normally transmit data.

The insulator 120 is disposed outside the wires 110, and the insulator 120 separately wraps the wires 110, so that the insulator 120 can reduce data interference between the wires 110 and prevent mutual interference of electric fields generated when the two wires 110 transmit data. The insulator 120 is made of a foamed thermoplastic material formed by one-step extrusion molding, the thermoplastic material is heated and has enhanced fluidity, the heated foamed thermoplastic material in a fluid state is extruded into the core wire 100, the thermoplastic material can completely wrap the two wires 110, and the thermoplastic material is filled between the two wires 110 after the thermoplastic material is cooled. The insulator 120 is further wrapped with a first shielding layer 130 to play a role of double shielding, the first shielding layer 130 wraps the insulator 120 and the two wires 110, and the first shielding layer 130 can uniform the wires 110 and the insulated electric field. The first shielding layer 130 is formed by covering the insulator 120 with a metal film, and the core wire 100 can be shielded by using the metal film, and the waterproof capability and safety of the core wire 100 can be improved. In some embodiments, the first shielding layer 130 may also be a semi-conductive shielding layer, and the semi-conductive shielding layer is made of a semi-conductive material with low resistivity and a thin thickness, so as to effectively uniform an electric field on the surface of the core wire 100 and prevent the partial discharge between the conductor wire 110 and the insulator 120 due to the unsmooth surface of the conductor wire 110 and the air gap generated by twisting the core wire 100. The first shielding layer 130 is further sleeved with a core wire sleeve 140, the core wire sleeve 140 wraps the first shielding layer 130, friction between the first shielding layer 130 and other fillers is avoided, and the service life of the core wire 100 is prolonged.

The core wire 100 comprises a conducting wire 110, an insulator 120, a first shielding layer 130 and a core wire sleeve 140, wherein a plurality of groups of core wires 100 are arranged in one cable for realizing multi-channel transmission, and the plurality of groups of core wires 100 can simultaneously transmit a plurality of groups of data, thereby improving the transmission efficiency and reducing the distortion. The filling layers 200 are arranged between the core wires 100, and the filling layers 200 are made of velvet-shaped flame-retardant materials, so that the probability of spontaneous combustion and fire of the cable can be reduced, and the safety is further improved. The filling layer 200 is further provided with a reinforcement core 600, the reinforcement core 600 has a reinforcement effect on the cable, the reinforcement core 600 is disposed between the core wires 100, the reinforcement core 600 can improve the radial tensile resistance of the cable and improve the bending resistance of the cable, in some embodiments, the material of the reinforcement core 600 may be low-carbon galvanized steel wire and aramid fiber, and the material of the reinforcement core 600 is not limited herein.

The outer cladding of heart yearn 100 and filling layer 200 has dampproof course 300, and the material that dampproof course 300 used is the aluminium rete, uses the weight that the aluminium rete can lighten the cable, also can avoid external moisture to get into inside the cable simultaneously, reduces the probability of taking place the short circuit. In some embodiments, the moisture barrier 300 may use a polymeric PE film.

In some embodiments, the multi-core cable for digital communication is connected to a device, data is transmitted through the multiple sets of wires 110 at a faster speed, and the wires 110 are covered with the insulator 120, so that the insulator 120 can prevent accidental leakage and ensure safety. The first shielding layer 130 is arranged outside the insulator 120 to wrap the insulator 120 and the wire 110, the first shielding layer 130 is shielded by the metal film layer wire 110, so that the electric field of the core wire 100 is shielded, the electric field generated by the core wire 100 is prevented from influencing other lines, the heat dissipation capacity of the core wire 100 can be improved, and the over-high temperature of the core wire 100 is prevented.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means 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 present invention. In this specification, the schematic representations of the terms used above do not necessarily 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (7)

1. A multi-core cable for digital communications, comprising:

the cable comprises a plurality of core wires, a first shielding layer and a core wire sleeve, wherein each core wire comprises two conducting wires for data transmission, the conducting wires are arranged in parallel and are separated from each other, an insulator for coating the two conducting wires is arranged in each core wire, and the first shielding layer and the core wire sleeve are sequentially arranged outside the insulator;

a filling layer disposed between the core wires;

the moisture-proof layer coats the core wire and the filling layer;

the second shielding layer is arranged outside the moisture-proof layer and covers the moisture-proof layer;

and the sheath is arranged outside the second shielding layer and wraps the second shielding layer.

2. The multi-core cable for digital communication as claimed in claim 1, wherein the insulator is a foamed thermoplastic material formed by one-time extrusion.

3. The multi-core cable for digital communication according to claim 1 or 2, wherein the first shielding layer is a metal film layer covering the insulator.

4. The multi-core cable for digital communication as claimed in claim 1, wherein the filling layer is a velvet-like flame retardant material.

5. The multi-core cable for digital communication as claimed in claim 4, wherein a plurality of the strength cores are disposed in the filling layer, and the strength cores are distributed among the core wires.

6. The multi-core cable for digital communication as claimed in claim 1, wherein the moisture barrier is an aluminum film layer.

7. The multi-core cable for digital communication as claimed in claim 1, wherein the second shielding layer is a metal mesh layer.

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