CN212181959U

CN212181959U - 42-core integrated data transmission cable

Info

Publication number: CN212181959U
Application number: CN202020993164.XU
Authority: CN
Inventors: 耿鹏; 孙德亮; 王冰; 汪真有; 范佳林; 侯伟亮; 刘名远; 曹伟
Original assignee: TIANJIN 609 CABLE CO Ltd
Current assignee: TIANJIN 609 CABLE CO Ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2020-12-18
Anticipated expiration: 2030-06-03

Abstract

The utility model relates to a 42 core integrated data transmission cable, three insulating pair-twisted sets of group constitute the inlayer cable core, at its outer package one deck polyester film isolation layer I that is equipped with five sets of pair-twisted shielding groups, six four-core twisted cable sets of group, two 1553B data lines constitute the cable core, be equipped with fire-retardant glass strap isolation layer I outside the cable core in proper order, the total shielding layer of tinned wire, fire-retardant glass strap isolation layer II, high fire-retardant extra soft TPR elastomer sheath and steel wire armor. The utility model has the advantages that: the cable breaks through the comprehensive structural design, meets the requirements of multi-core, multi-layer structure and multi-electrical performance, lightens the weight of the cable, reduces the outer diameter of the cable, improves the mechanical and physical properties and the environment resistance, and is more convenient to operate and construct compared with the common comprehensive cable.

Description

42-core integrated data transmission cable

Technical Field

The utility model relates to a 42 core integrated data transmission cable is the integrated control cable that is arranged in the ground control system of certain communication equipment to connect between the instrument and signal transmission's the multiple cross-section of multicore.

Background

If the traditional integrated data transmission control cable structure is taken as a scheme (hereinafter referred to as a front scheme), a plurality of cables such as a control cable, a signal cable, a power cable and the like are bundled in the 42-core integrated cable, so that the cable bundle is large in overall outer diameter, heavy in weight, large in occupied space and inconvenient to install and operate.

The control cable, the signal cable, the power cable and other cables in the prior scheme are independent finished cables meeting requirements and have different control and transmission functions respectively.

The cable adopting the former scheme is taken as an example, the integral outer diameter of the bundled cable is about 70-80 mm, the integral weight is 3500-3800 kg/km, and each independent cable is required to be provided with a connector in the installation and construction process, so that the problems of large occupied space, overhigh cost, complex operation, large construction difficulty and the like are caused.

Disclosure of Invention

In view of the deficiencies in the prior art, the utility model provides a 42 core integrated data transmission cable, this cable can transmit signals such as sound, data simultaneously, and the product has the characteristics of light in weight, softness, service temperature range broad, especially has characteristics such as the low temperature performance is better, electric insulating property is high, high environmental resistance to have certain anti-electromagnetic interference ability.

The utility model discloses a realize above-mentioned purpose, the technical scheme who takes is: a 42-core integrated data transmission cable, characterized by: the cable comprises a pair-twisted shielding wire set, a four-core twisted cable set, an insulating pair-twisted wire set, a polyester film isolation layer I, a 1553B data wire, a flame-retardant glass cloth tape isolation layer I, a tinned copper wire total shielding layer, a flame-retardant glass cloth tape isolation layer II, a TPR (thermal plastic rubber) elastomer sheath and a steel wire armor layer;

the three groups of the insulation pair-twisted wire groups form an inner-layer cable core, a polyester film isolation layer I is wrapped outside the inner-layer cable core, five groups of pair-twisted shielding wire groups, six groups of four-core twisted wire groups and two 1553B data wires are arranged outside the polyester film isolation layer I to form the cable core, and a flame-retardant glass cloth tape isolation layer I, a tinned copper wire total shielding layer, a flame-retardant glass cloth tape isolation layer II, a high-flame-retardant ultra-soft TPR (thermal plastic rubber) elastomer sheath and a steel wire armor layer are sequentially arranged outside the cable core.

The utility model has the advantages that: the utility model discloses the cable is with the multiple cable in the scheme before the prior art rationally arrange the layering stranding through calculating, at the cable core outer fire-retardant glass strap isolation layer of wrap, again wrap the fire-retardant glass strap isolation layer of wrap one deck after weaving the anti-electromagnetic radiation shielding layer, extrude high fire-retardant TPR elastomer sheath at last after, outmost steel wire armor enhancement layer of weaving.

1. The conductor is formed by twisting a plurality of strands of silver-plated round copper wires, so that the flexibility is increased, the conductor has excellent conductive capacity, the resistance of the conductor is reduced, and the conductor has good weldability. The stranded conductor has a certain stranding rate, and has higher flexibility compared with a single conductor, so that the conductor is not easy to break when the cable is bent; compared with the common pure copper conductor, the silver-plated conductor has the advantages that the direct current resistance can be reduced by about 10% under the condition of the same section, the transmission of signals and power supplies is effectively ensured, and the energy consumption is reduced.

2. The insulation adopts low-smoke and nontoxic irradiation crosslinking polyethylene, the polyethylene has excellent electrical performance, the volume resistivity is generally 1018 omega, cm is 8-10 orders of magnitude higher than that of common PVC and FEP materials, the insulation performance is better, and the low dielectric constant is fundamentally guaranteed to be low attenuation and low capacitance.

3. The shielding layer adopts the form of weaving tin-plated copper wire and effectively prevents the interference of inside each inter-unit of cable and external world to the cable, compares pure copper wire shielding layer and has better weldability, makes things convenient for construction operation.

4. The isolating layer adopts a polyester film and a flame-retardant glass cloth belt, and the polyester film has certain insulating property and good oil and moisture insulating property; the flame-retardant glass cloth tape has the performance of isolating flame and high temperature, and prevents the flame and the high temperature from diffusing to the inside of the cable core;

5. the sheath adopts a high-flame-retardant ultra-soft TPR elastomer, has the mechanical properties of flame retardance, small bending radius and the like, and the TPR material can pass a bundled combustion test (class C) required by national standards and has good flame retardance; meanwhile, the flame-retardant rubber material has the characteristic of small bending radius (Shore hardness of 85D), and is softer than common flame-retardant materials (Shore hardness of 87-95D); the TPR material also has environment resistance performances such as high and low temperature resistance (-45-80 ℃), mould prevention (national military standard 2 grade requirement), salt fog prevention (national military standard 96h test), rat prevention and the like.

6. The armor adopts steel wire armor, has better protective performance, and effectively prevents environmental resistance such as rats, ants, collision and the like; the use of the low-resistance silver-plated copper conductor, the low-dielectric-constant insulation and sub-shielding, the total shielding and the steel wire armoring is combined, so that the whole cable has stronger anti-electromagnetic interference capability.

7. The utility model discloses the cable is through totaling arranging and calculating the back, and the whole external diameter of finished cable is steerable between 25 ~ 30mm, and whole weight is steerable 1400 ~ 1500kg/km, the rational utilization space, practiced thrift the cost, reduced the operation degree of difficulty, installation cable and construction are laid the cable and will be convenient and fast more, possess the requirement that satisfies the customer to the various characteristic index of cable simultaneously.

In a word, the cable breaks through the comprehensive structural design, meets the requirements of multi-core, multi-layer structure and multi-electrical performance, lightens the weight of the cable, reduces the outer diameter of the cable, improves the requirements of mechanical physical performance and environmental resistance, and is more convenient to operate and construct compared with the common comprehensive cable.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of the twisted pair shielding wire set of the present invention;

fig. 3 is a schematic structural view of the four-core stranded cable assembly of the present invention;

fig. 4 is a schematic structural diagram of the insulated twisted pair set according to the present invention.

Detailed Description

As shown in fig. 1 to 4, a 42-core integrated data transmission cable comprises a twisted pair shielding wire set 1, a four-core twisted pair cable set 2, an insulating twisted pair set 3, a polyester film isolation layer I4, a 1553B data wire 5, a flame-retardant glass cloth tape isolation layer I6, a tinned copper wire total shielding layer 7, a flame-retardant glass cloth tape isolation layer II 8, a TPR elastomer sheath 9 and a steel wire armor layer 10.

The pair-twisted shielding line group 1 is formed by oppositely twisting two shielding line group insulating single lines, sequentially wrapping polyester film isolating layers II 1-3 and weaving tin-plated copper sub-shielding layers 1-4 outside the shielding line group insulating single lines, and the shielding line group insulating single lines are formed by extruding a low-smoke non-toxic irradiation cross-linked polyethylene insulating layer I1-2 outside a tin-plated copper wire conductor I1-1 with a cross section of 0.75mm formed by a plurality of tin-plated round copper wires.

The four-core stranded cable group 2 is formed by twisting four-core stranded cable group insulating single wires and wrapping polyester film isolating layers III 2-3 outside the four-core stranded cable group insulating single wires, and the four-core stranded cable group insulating single wires are formed by extruding a layer of low-smoke non-toxic irradiation crosslinking polyethylene insulating layers II 2-2 outside a multi-strand tinned round copper wire conductor II 2-1 with a cross section of 0.75 mm.

The insulated twisted pair group 3 is formed by twisting two insulated twisted pair group insulated single wires in pairs and wrapping polyester film isolation layers IV 3-3 outside the twisted pair group insulated single wires, and the insulated twisted pair group insulated single wires are formed by extruding a low-smoke and nontoxic irradiation cross-linked polyethylene insulation layer III 3-2 outside a tinned copper wire conductor 3-1 with a cross section of 2.5mm formed by a plurality of tinned round copper wires.

Three groups of insulation pair-twisted wire sets 3 form inner-layer cable core pair twisting, a polyester film isolating layer I4 is wrapped outside the inner-layer cable core pair twisting, five groups of pair-twisted shielding wire sets 1, six groups of four-core twisted wire sets 2 and two 1553B data wires 5 are arranged outside the polyester film isolating layer I4 to form a cable core, and a flame-retardant glass cloth tape isolating layer I6, a tinned copper wire total shielding layer 7, a flame-retardant glass cloth tape isolating layer II 8, a high-flame-retardant extra-soft TPR (thermal plastic rubber) elastomer sheath 9 and a steel wire armor layer 10 are sequentially arranged outside the cable core.

Claims

1. A 42-core integrated data transmission cable, characterized by: the cable comprises a pair-twisted shielding wire set (1), a four-core twisted cable set (2), an insulating pair-twisted wire set (3), a polyester film isolation layer I (4), a 1553B data wire (5), a flame-retardant glass cloth tape isolation layer I (6), a tinned copper wire total shielding layer (7), a flame-retardant glass cloth tape isolation layer II (8), a TPR (thermal plastic rubber) elastomer sheath (9) and a steel wire armor layer (10);

three groups insulation pair-twisted wire group (3) constitute the inner cable core, wrap one deck polyester film isolation layer I (4) outside it, be equipped with five groups pair-twisted shielding group (1) outside polyester film isolation layer I (4), six groups four-core twisted wire group (2), two 1553B data line (5) constitute the cable core, be equipped with fire-retardant glass strap isolation layer I (6), tinned wire total shielding layer (7), fire-retardant glass strap isolation layer II (8), high fire-retardant extra soft TPR elastomer sheath (9) and steel wire armor (10) outside the cable core in proper order.

2. A 42-core integrated data transmission cable according to claim 1, wherein: the twisted-pair shielding line set (1) is formed by sequentially wrapping polyester film isolating layers II (1-3) and weaving tin-plated copper sub-shielding layers (1-4) outside two shielding line set insulating single lines after twisted in pairs, and the shielding line set insulating single lines are formed by extruding a low-smoke non-toxic irradiation cross-linked polyethylene insulating layer I (1-2) outside a 0.75 mm-section tin-plated copper wire conductor I (1-1) formed by a plurality of tin-plated round copper wires.

3. A 42-core integrated data transmission cable according to claim 1, wherein: the four-core stranded cable group (2) is formed by twisting four-core stranded cable group insulating single wires and wrapping polyester film isolation layers III (2-3) outside the four-core stranded cable group insulating single wires, and the four-core stranded cable group insulating single wires are formed by extruding a low-smoke non-toxic irradiation cross-linked polyethylene insulation layer II (2-2) outside a 0.75 mm-section tinned copper wire conductor II (2-1) formed by a plurality of tinned round copper wires.

4. A 42-core integrated data transmission cable according to claim 1, wherein: the insulating twisted pair group (3) is formed by twisting two insulating twisted pair group single insulated wires in pairs and wrapping a polyester film isolation layer IV (3-3) outside the insulated twisted pair group single insulated wires, and the insulating twisted pair group single insulated wires are formed by extruding a low-smoke non-toxic irradiation cross-linked polyethylene insulation layer III (3-2) outside a multi-strand tinned round copper wire conductor (3-1) with a cross section of 2.5 mm.