CN209822335U - Shielded cable based on high-strength fiber material - Google Patents

Abstract

The utility model provides a shielded cable based on high strength fiber material, it includes: place the sinle silk in the cable in, it includes first sinle silk, second sinle silk, third sinle silk, is provided with the inner support frame that keeps three sinle silk stability in the cable, and inner support frame annular array arranges three first sinle silk, second sinle silk, third sinle silk complex respectively and holds the cavity. The utility model discloses owing to hold including the three-core respectively in the cavity that holds of support frame to keep three sinle silks at the inside interval of cable, can the effectual stability of three sinle silks in cable of assurance through inner support frame.

Description

Shielded cable based on high-strength fiber material

Technical Field

The utility model relates to the technical field of cables, especially, relate to a shielded cable based on high strength fiber material.

Background

As is well known, in the cable in the prior art, a plurality of cores (for example, a three-core structure) are usually embedded in the same cable for signal and power transmission, and then, under the condition that a shielding structure is respectively embedded in each of the plurality of cores (the three-core structure), a core accommodating space inside the cable cannot keep the positions between the cores stable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a shielded cable based on high strength fiber material, it can keep the stability of three sinle silks in the cable.

The utility model provides a shielded cable based on high strength fiber material, it includes: the cable comprises a wire core arranged in a cable, and the wire core comprises a first wire core, a second wire core and a third wire core, wherein the first wire core comprises first high-strength fibers and three first leads wound on the first high-strength fibers; the insulating layer is arranged outside the wire core; a shielding layer disposed outside the insulating layer; a sheath disposed outside the shielding layer; an inner support frame for keeping the stability of the three wire cores is arranged in the cable, and three accommodating cavities matched with the first wire core, the second wire core and the third wire core are arranged in the inner support frame in an annular array mode.

Compared with the prior art, the utility model provides a shielded cable based on high strength fiber material is owing to hold in the cavity that holds of inner support frame through holding three-core respectively to keep three sinle silk at the inside interval of cable, can the effectual stability of three sinle silks in cable through inner support frame.

Further, the first high-strength fiber, the second high-strength fiber and the third high-strength fiber are carbon fibers.

Further, the accommodating cavity is an arc-shaped cavity, and each wire core is of a circular structure, so that the wire core with the circular cross section can be better accommodated through the arc-shaped cavity.

Furthermore, the length of the opening connecting line of the arc-shaped cavity is smaller than the diameter of the circle where the arc-shaped cavity is located, and the mode that the opening is set to be smaller than the diameter of the circle where the arc-shaped cavity is located is adopted, so that the wire cores are prevented from being separated from respective accommodating cavities

Further, the inner support frame is made of plastic, the plastic part can meet the requirement of light weight of the whole cable, and the inner support frame can be arranged in the cable in a whole body or at intervals.

Further, the side wall of the accommodating cavity is provided with a shielding film or a shielding layer, the shielding film is selected from a metal thin film coated on the side wall, and the shielding layer is selected from a tin foil shielding layer.

Drawings

Fig. 1 is a schematic view of a shielded cable structure based on a high-strength fiber material.

Fig. 2 is a cross-sectional view of the inner bracket.

Fig. 3 is a schematic view of the inner support frame internally provided with structural reinforcing ribs.

Detailed Description

The present invention will now be described in more detail with reference to the drawings, in which preferred embodiments of the invention are shown, it being understood that one skilled in the art could modify the invention herein described while still achieving the beneficial effects of the invention. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the invention.

Example 1: referring to fig. 1, the shielding cable based on the high-strength fiber material includes core wires internally disposed in the cable, and includes three core wire structures externally disposed with an insulating layer and carbon fiber cloth, the three core wire structures in the cable are defined as a first core wire, a second core wire and a third core wire respectively, and the outer diameters of the three core wire structures are the same.

As can be seen in fig. 1, the first core comprises a first high-strength fiber 5a, three first wires 5b wound around the first high-strength fiber, and the structural strength of the core when pulled can be improved by winding the three wires around the high-strength fiber, such as carbon fiber, and the rest of the two-core structure is similar to the above structure. A first insulating layer 5c is disposed outside the first core, and a first carbon fiber cloth layer 5d is disposed outside the first insulating layer. The second sinle silk includes second high strength fiber 6a, twines in two second wires 6b of second high strength fiber, and second high strength fiber adopts the carbon fiber equally, and second sinle silk outside is provided with second insulating layer 6c, and second insulating layer outside is provided with second carbon cloth 6 d. The third sinle silk includes third high strength fiber 7a, twines in a third wire 7b of third high strength fiber, and third high strength fiber also adopts the carbon fiber, and the third sinle silk outside is equipped with third insulating layer 7c, and the third insulating layer outside is provided with third carbon cloth 7 d.

With continued reference to fig. 1, an insulating layer 1 is provided outside the three-core structure, and a shielding layer 2 for improving the overall shielding effect is further provided outside the insulating layer, and a sheath 3 is provided outside the shielding layer.

It is worth mentioning that, be provided with the inner support frame 4 that keeps three sinle silk stability in the cable, this inner support frame can let three sinle silk structures in the cable keep in presetting the distance in, can also guarantee that its relative position be stability, inner support frame 4 annular array has arranged three first sinle silk respectively, the second sinle silk, the cavity is held in third sinle silk complex, see figure 1, it arranges on inner support frame to hold the cavity, adjacent hold carry out effectual isolation through inner support frame between the cavity, when having guaranteed the distance between the adjacent sinle silk, the sinle silk can't deviate from the cavity of installing separately. The three receiving cavities 4d in fig. 1 are located between adjacent sides and extend toward the center of the inner support frame, specifically, a first receiving cavity extending toward the center of the inner support frame is located between the first side 4a and the second side 4b, a second receiving cavity extending toward the center of the inner support frame is located between the second side 4b and the third side 4c, a third receiving cavity extending toward the center of the inner support frame is located between the third side 4c and the first side 4a, and the first side, the second side, and the third side are located on substantially the same triangle. The inner support frame with the special-shaped structure can ensure the preset distance between the wire cores without filling any other materials in the cable, and ensures that the installation positions of the respective wire cores are not changed.

From the above, the shielded cable can keep the space between the three wire cores inside the cable by respectively accommodating the three wire cores in the three accommodating cavities of the inner support frame, and the stability of the three wire cores in the position inside the cable is ensured by the structure of the inner support frame.

Referring to fig. 2, the accommodating cavity is an arc-shaped cavity, and each wire core is of a circular structure, so that the wire core with a circular cross section can be better accommodated through the arc-shaped cavity, it is noted that the length of the opening connecting line of the arc-shaped cavity is smaller than the diameter of the circle where the arc-shaped cavity is located, and the opening is set to be smaller than the diameter of the circle where the arc-shaped cavity is located, so that the wire core is prevented from being separated from the accommodating cavity

In addition, the inner support frame comprises plastics, plastic parts can meet the requirement of light weight of the whole cable, and the inner support frame can be arranged in the cable in a whole body or at intervals.

It should be noted that the side walls of the receiving cavity may be provided with a shielding film, for example a metallic film applied to the side walls, or a shielding layer, for example a foil shielding layer, which may be mounted as a permanent structure on the side walls and which may be replaced separately from the side walls.

In the case that the inner support frames 4 are arranged at intervals along the extending direction of the cable, a structural reinforcing rib may be provided at the center of the inner support frame 4, referring to fig. 3, the structural reinforcing rib 9 is located at the center of the inner support frame, the inner support frames 4 arranged at intervals may be connected in the cable as a whole through the structural reinforcing rib, and the structural reinforcing rib includes, but is not limited to, a steel wire and a carbon fiber structure.

Considering that the service performance of the cable is also affected by the overlarge working environment temperature of the cable, a layer of temperature-sensitive color-changing silica gel (temperature-sensitive color-changing silica gel) can be arranged on the surface of the cable, and whether the working temperature of a site is suitable for the cable to work or not can be judged through the color change of the temperature-sensitive color-changing silica gel.

The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.

Claims (6)

1. A shielded cable based on high strength fiber material, comprising:

the cable comprises a wire core arranged in a cable, and the wire core comprises a first wire core, a second wire core and a third wire core, wherein the first wire core comprises first high-strength fibers and three first leads wound on the first high-strength fibers;

the insulating layer is arranged outside the wire core;

a shielding layer disposed outside the insulating layer;

a sheath disposed outside the shielding layer;

an inner support frame for keeping the stability of the three wire cores is arranged in the cable, and three accommodating cavities matched with the first wire core, the second wire core and the third wire core are arranged in the inner support frame in an annular array mode.

2. The shielded cable based on high-strength fiber material as claimed in claim 1, wherein the first, second and third high-strength fibers are carbon fibers.

3. The high strength fiber material-based shielded electrical cable of claim 1, wherein the receiving cavity is an arc-shaped cavity.

4. The shielded cable based on high-strength fiber material as claimed in claim 3, wherein the length of the opening line of the arc-shaped cavity is smaller than the diameter of the circle on which the arc-shaped cavity is located.

5. The shielded cable based on a high-strength fiber material as claimed in claim 1, wherein the inner support frame is made of plastic.

6. The shielded cable based on a high-strength fiber material as claimed in claim 1, wherein the side wall of the receiving cavity is provided with a shielding film or a shielding layer.