CN204130256U - A kind of flame-retardant comprehensive transmission cable - Google Patents

Abstract

The utility model relates to a flame-retardant integrated transmission cable. The insulated shielding wire consists of extruding a layer of insulating layer outside a 0.35mm2 conductor to form an insulating single wire, and weaving a layer of shielding layer I outside the insulating single wire; the twisted shielding wire consists of two Insulated single wires are paired to form an insulated twisted pair, and a layer of shielding layer II is braided outside the insulated twisted pair; two pairs of shielded pairs are composed of two insulated twisted pairs paired, and a layer of shielding layer III is braided outside it. ;Two 1553B data buses, two pairs of twisted shielded wires, six paired shielded wires, eight core fillers, and twenty-six insulated shielded wires are cabled, and the isolation layer, the braided overall shielding layer, and the extrusion Pack sheath. The effect is: the cable meets the requirements of multi-core, multi-layer structure, and multi-electric performance, reduces the weight of the cable, reduces the outer diameter of the cable, and facilitates installation and operation.

Description

A flame-retardant integrated transmission cable

technical field

The utility model relates to a flame-retardant comprehensive transmission cable, which is a multi-core and multiple-section comprehensive control cable used for connection between instruments and signal transmission in a ground control system of certain communication equipment.

Background technique

The cables in the common control system include high-frequency signal cables, control cables, twisted-pair shielded cables, etc. There are many types of cables and they are used in bundles, resulting in a large overall outer diameter of the cable bundle, heavy weight, and a large space occupation, which is not easy to install and operate.

The cable breaks through the comprehensive structure design, meets the requirements of multi-core, multi-layer structure, and multi-electric performance, reduces the weight of the cable, and reduces the outer diameter of the cable.

Contents of the invention

In view of the deficiencies in the prior art, the utility model provides a flame-retardant integrated transmission cable, which meets the requirements of multi-core, multi-layer structure, and multi-electric performance, reduces the weight of the cable, and reduces the outer diameter of the cable. Easy to install and operate.

In order to achieve the above purpose, the utility model adopts the following technical solution: a flame-retardant integrated transmission cable, which is characterized in that it includes an insulated shielded wire, a twisted shielded wire, two pairs of twisted shielded wires, a 1553B data bus, and an isolation layer , total shielding layer, sheath and filler core, the insulated shielding wire is formed by extruding a layer of insulating layer outside the 0.35mm2 conductor to form an insulated single wire, and braiding a layer of shielding layer I outside the insulated single wire; the twisted shielded wire It consists of two insulated single wires paired to form an insulated twisted pair, and a layer of shielding layer II is braided outside the insulated twisted pair; the two paired shielded wires are paired by two insulated twisted Layer shielding layer III; two 1553B data buses, two pairs of twisted shielded wires, six paired shielded wires, eight core fillers, and twenty-six insulated shielded wires are cabled, and the isolation layer is wrapped around it in turn , Braided overall shielding layer, extruded sheath.

The beneficial effects of the utility model are: the transmission of the high-frequency signal line adopts 1553B bus, which can transmit signals at high speed and large capacity; the conductor used in the low-frequency signal line is tinned copper wire, which has excellent conductivity and reduces the resistance of the conductor , has good solderability. The insulating layer is made of high-density polyethylene, which has excellent electrical properties, and the low dielectric constant is the fundamental guarantee for low attenuation and low capacitance. The shielding layer adopts the form of braided tinned copper wire to effectively prevent the interference between the wire groups inside the cable and the outside world on the cable. The sheath is made of high flame-retardant, extra-soft and oil-resistant elastomer, which has the characteristics of flame retardancy, small bending radius, and environmental resistance such as low temperature resistance, oil resistance, mold resistance, and salt spray resistance. Combined with low-resistance tinned copper conductors, low dielectric constant insulation, individual shielding, and the use of total shielding, the cable as a whole has a strong ability to resist electromagnetic interference. Light weight, large space occupation, easy installation and operation. The whole system has a higher environmental adaptability and reliability level, which meets the use requirements.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of the utility model insulated shielding wire;

Fig. 3 is a structural schematic diagram of the twisted shielded wire of the present invention;

Fig. 4 is a structural schematic diagram of two pairs of twisted shielded wires of the present invention.

Detailed ways

As shown in Figure 1, Figure 2, Figure 3, and Figure 4, a flame-retardant integrated transmission cable includes an insulated shielded wire 1, a twisted shielded wire 2, two pairs of twisted shielded wires 3, a 1553B data bus 4, and an isolation layer 5 , The total shielding layer 6, the sheath 7 and the filler core 8.

The insulated shielding wire 1 is formed by extruding a layer of insulating layer 1-2 outside the 0.35mm2 conductor 1-1 to form an insulated single wire, and braiding a layer of shielding layer I1-3 outside the insulated single wire.

Twisted pair shielded wire 2 consists of two insulated single wires paired to form an insulated twisted pair, and a layer of shielding layer II1-3 is braided outside the insulated twisted pair; , and weave a layer of shielding layer III1-3 outside it.

Two 1553B data buses 4, two pairs of twisted shielded wires 3, six twisted shielded wires 2, eight core fillers 8, and twenty-six insulated shielded wires 1 are cabled, and the isolation layer 5 is wrapped around them in turn , braided overall shielding layer 6, extruded sheath 7.

Two 1553B data buses 4, two pairs of twisted shielded wires 3, six twisted shielded wires 2, eight core fillers 8, and twenty-six insulated shielded wires 1 are specifically arranged as follows: two 1553B data buses 4, two pairs of pairs The twisted shielded wire 3 is the cable core, and there are twenty-six insulated shielded wires 1 outside it, and two filling cores 8 symmetrically arranged between the cable core and the twenty-six insulated shielded wires 1 are respectively provided with There are three twisted shielded wires 2 , and a filler core 8 is provided on both sides of the twisted shielded wire 2 in the middle of the three twisted shielded wires 2 .

The 0.35mm2 conductor 1-1 is composed of multiple tinned copper wires; the insulating layer 1-2 is made of high-density polyethylene, the shielding layer I1-3, shielding layer II1-3, shielding layer III1-3, and the total shielding layer 5 are plated Tin-copper wire braided shielding; isolation layer 4 is made of flame-retardant glass cloth tape; sheath 6 is made of high flame-retardant, extra-soft and oil-resistant TPR elastomer.

Claims (3)

1. A flame-retardant integrated transmission cable, including a 1553B data bus (4), characterized in that it also includes an insulated shielded wire (1), a twisted shielded wire (2), two pairs of twisted shielded wires (3), an isolation layer (5), overall shielding layer (6), sheath (7) and filler core (8), the insulated shielding wire (1) is extruded from a 0.35mm2 conductor (1-1) with an insulating layer ( 1-2) form an insulated single wire, and a layer of shielding layer I (1-3) is braided outside the insulated single wire; A layer of shielding layer II (1-3) is braided outside the twisted wire; the two pairs of twisted shielded wires (3) are twisted by two insulated twisted-pair wires, and a layer of shielding layer III (1-3) is braided outside it. ) composition; two 1553B data buses (4), two pairs of twisted shielded wires (3), six twisted shielded wires (2), eight core fillers (8), twenty-six insulated shielded wires (1 ) into a cable, and wrap the isolation layer (5), the braided overall shielding layer (6), and the extruded sheath (7) in sequence. 2. A flame-retardant integrated transmission cable according to claim 1, characterized in that: the two 1553B data buses (4), two pairs of twisted shielded wires (3), and six paired shielded wires (2) , eight core fillers (8), and twenty-six insulated shielded wires (1) are specifically arranged as follows: two 1553B data buses (4), two pairs of twisted shielded wires (3) are cable cores, and there are Twenty-six insulated and shielded wires (1), three twisted shielded wires (2 ), and a filler core (8) is provided on both sides of the middle twisted shielded wire (2) of the three paired shielded wires (2). 3. A flame-retardant integrated transmission cable according to claim 1, characterized in that: the 0.35mm2 conductor (1-1) is made of multiple tinned copper wires; the insulating layer (1-2) is made of high-density Polyethylene, shielding layer I (1-3), shielding layer II (1-3), shielding layer III (1-3), overall shielding layer (5) adopts tinned copper wire braid shielding; isolation layer (4) adopts Flame-retardant glass cloth tape; the sheath (6) is made of high flame-retardant extra-soft and oil-resistant TPR elastomer.