CN211719279U - Wear-resistant shielded cable - Google Patents

Abstract

The utility model relates to a wear-resistant shielded cable, the cable includes the sinle silk, the control sinle silk, the internal shield body, band, the outer shielding layer, the insulating layer, the sheath, a sinle silk is located the band center, many sinle silks of its circumference evenly distributed, a control sinle silk is distributed to the central point of per two sinle silks, be provided with the internal shield body in the band, the internal shield body is elastic shielding material, set up the outer shielding layer outside the band, set up the insulating layer outside the outer shielding layer, set up the sheath outside the insulating layer, the insulating layer surface sets up the rectangle bellying, the internal shield body sets up the rectangle recess with the fibre core; arranging an insulating paint coating on the surface of the wrapping tape; the outer surface of the sheath is provided with a circular bulge. The cable is anti-interference, resistant to drag and abrasion, high in flexibility and elastic, and easy to install and wire.

Description

A wear-resistant shielded cable

technical field

The utility model relates to the field of power cables, in particular to a wear-resistant shielded cable.

Background technique

The existing cable includes four parts: a plurality of conductors, an insulating layer wrapped around each conductor, a braided layer and a sheath layer, wherein the conductor and the insulating layer constitute an insulated core, and the braided layer is wrapped around the multiple insulated cores. The outer surface of the braided layer is covered with a sheath layer. Shielded cables are usually composed of several or several groups of conductors, each of which is twisted at least two, and the conductors of each group are insulated from each other and twisted around a center, and the entire outer surface is covered with a highly insulated coating. In the prior art, most of the insulation and sheath of cables are directly composed of plastic and rubber organic polymers to form a wrapping layer, which generally has poor wear resistance and poor safety performance. If the wrapping layer is too thick, it will affect the bending and winding of the cable.

SUMMARY OF THE INVENTION

In order to overcome the above technical defects. The purpose of the utility model is to provide a shielded cable with resistance to drag and abrasion, high softness and elasticity.

In order to achieve the above purpose, the utility model is achieved through the following technical solutions: a wear-resistant shielded cable, comprising a main wire core, a control wire core, an inner shield, a wrapping tape, an outer shielding layer, a heat insulation layer, and a sheath, the The main wire core and the control wire core are composed of conductors and an insulating layer wrapped outside the conductors. One of the main wire cores is located in the center of the inner shield, and a plurality of the main wire cores are evenly distributed in the circumferential direction. A control wire core is distributed at the center point of the two main wire cores, the inner shield is extruded and wrapped around the wrapping tape to form an insulating cable core, the inner shielding body is an elastic shielding material, and the wrapping tape The outer shielding layer is arranged, the heat insulating layer is arranged outside the outer shielding layer, and the sheath is arranged outside the heat insulating layer.

In order to achieve structure and effect optimization, the further measures are:

In order to improve the flexibility, oxidation resistance and bearing capacity of the cable, the conductor is made of multiple tinned soft copper wires, and the diameter of the single wire is less than or equal to 0.03mm;

In order to enhance the high-temperature resistance of the cable, the insulating layer is a high-temperature-resistant thermal insulation material with ceramic fibers as the main raw material;

In order to improve the anti-extrusion ability of the cable and reduce the dislocation and friction between the wire core and the inner shield, the outer surface of the insulating layer is provided with a rectangular protrusion;

A rectangular groove is arranged on the contact surface between the inner shield and the wire core;

In order to enhance the insulation of the cable and reduce the outer diameter of the cable, the surface of the tape is arranged with an insulating paint coating;

In order to improve the anti-interference ability of the cable, the outer shielding layer is a metal mesh with a density of ≥80% woven from an iron-nickel alloy;

In order to reduce the abrasion of the cable, enhance the anti-vibration capability of the cable, and prolong the service life of the cable, the outer surface of the sheath is provided with a circular protrusion.

The beneficial effects of the present utility model are:

Compared with the prior art, the utility model adopts a thermal insulation layer to coat the wire core and a thermal insulation layer is arranged outside the outer shielding layer to reduce the influence of the external temperature on the cable; the inner shielding layer is filled with elastic shielding material, which enhances the external connection of the cable. The anti-interference ability of the signal also reduces the interference between the cores, fixes the position between the cores, and slows down the external impact load; the rectangular elastic raised key on the surface of the insulating layer can reduce the friction between the core and the inner shielding material; Adding insulating coating on the surface of the tape can strengthen the shielding effect and reduce the outer diameter of the cable, which is convenient for installation. The raised points on the surface of the sheath can reduce the vibration of the cable during transportation and reduce the wear of the cable.

Description of drawings

FIG. 1 is a schematic structural diagram of a wear-resistant shielded cable according to the present invention.

In the figure: 1. Main wire core; 2. Control wire core; 3. Inner shielding body; 4. Tape; 5. Outer shielding layer; 6. Insulation layer; 7. Sheath; 8. Conductor; 9. Insulation layer .

Detailed ways

As shown in Figure 1, a wear-resistant shielded cable according to the present invention includes a main wire core 1, a control wire core 2, an inner shield 3, a wrapping tape 4, an outer shielding layer 5, a heat insulation layer 6, a protective Cover 7, the main wire core and the control wire core are composed of conductor 8 and insulating layer 9 wrapped outside conductor 8, one main wire core 1 is located in the center of inner shield 3, and a plurality of main wire cores 1 are evenly distributed in the circumferential direction. A control wire core 2 is distributed at the center point of the main wire core 1. The inner shielding body 3 is extruded and wrapped with a wrapping tape 4 to form an insulating cable core. The inner shielding body 3 is an elastic shielding material, and an outer shielding layer 5 is arranged outside the wrapping tape 4. A heat insulating layer 6 is provided outside the outer shielding layer 5 , and a sheath 7 is provided outside the heat insulating layer 6 .

In order to improve the flexibility, oxidation resistance and bearing capacity of the cable, the conductor 8 is made by twisting multiple tinned soft copper wires, the diameter of the single wire is less than or equal to 0.03mm. Costs will increase.

In order to enhance the high temperature resistance capability of the cable, the insulating layer 9 is a ceramic fiber cotton with ceramic fiber as the main raw material, which belongs to a high temperature resistant thermal insulation material.

In order to enhance the anti-interference ability of the cable to external signals and at the same time reduce the interference between the cores, the position between the cores is fixed and the external impact load is slowed down. The inner shielding body 3 is an elastic shielding material such as rubber or conductive foam electromagnetic shielding material. .

In order to improve the anti-extrusion capability of the cable and reduce the dislocation and friction between the wire core and the inner shield body 3 , rectangular protrusions are provided on the outer surface of the insulating layer 9 .

A rectangular groove is provided on the contact surface of the inner shield 3 and the wire core, and the two can be assembled and combined.

In order to enhance the insulation of the cable and at the same time reduce the outer diameter of the cable, an insulating paint coating is arranged on the surface of the tape 4.

In order to improve the anti-interference ability of the cable, the outer shielding layer 5 is a metal mesh braided by an iron-nickel alloy with a braiding density of 90%. .

In order to reduce the abrasion of the cable, enhance the anti-vibration capability of the cable, and prolong the service life of the cable, the outer surface of the sheath 7 is provided with a circular protrusion.

Claims (8)

1. A wear-resistant shielded cable, characterized in that it comprises a main core (1), a control core (2), an inner shield (3), a wrapping tape (4), an outer shield (5), a thermal insulation Layer (6), sheath (7), said main core (1) and said control core (2) consist of conductors (8) and an insulating layer (9) wrapped around said conductors (8) , one of the main wire cores (1) is located in the center of the inner shield (3), and a plurality of the main wire cores (1) are evenly distributed in the circumferential direction, and the center points of each two of the main wire cores (1) are distributed One of the control wire cores (2), the inner shielding body (3) is extruded and wrapped around the wrapping tape (4) to form an insulating cable core, the inner shielding body (3) is an elastic shielding material, the The outer shielding layer (5) is arranged outside the wrapping tape (4), the insulating layer (6) is arranged outside the outer shielding layer (5), and a sheath (7) is arranged outside the insulating layer (6). . 2 . The wear-resistant shielded cable according to claim 1 , wherein the conductor ( 8 ) is formed by twisting a plurality of soft copper wires. 3 . 3 . The wear-resistant shielded cable according to claim 1 , wherein the insulating layer ( 9 ) is a high-temperature-resistant heat-insulating insulating material with ceramic fibers as the main raw material. 4 . 4 . The wear-resistant shielded cable according to claim 3 , wherein a rectangular protrusion is provided on the outer surface of the insulating layer ( 9 ). 5 . 5 . The wear-resistant shielded cable according to claim 1 , wherein a rectangular groove is provided on the contact surface between the inner shield ( 3 ) and the wire core. 6 . 6 . The wear-resistant shielded cable according to claim 1 , wherein an insulating paint coating is arranged on the surface of the wrapping tape ( 4 ). 7 . 7 . The wear-resistant shielded cable according to claim 1 , wherein a circular raised portion is provided on the outer surface of the sheath ( 7 ). 8 . 8 . The wear-resistant shielded cable according to claim 1 , wherein the outer shielding layer ( 5 ) is a metal mesh woven from an iron-nickel alloy with a density of ≥80%. 9 .

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