CN207367637U

CN207367637U - A kind of tensile type shielded cable

Info

Publication number: CN207367637U
Application number: CN201720712432.4U
Authority: CN
Inventors: 姜锡财
Original assignee: Qingdao Olympic Sail Wire And Cable Co Ltd
Current assignee: Qingdao Olympic Sail Wire And Cable Co Ltd
Priority date: 2017-06-19
Filing date: 2017-06-19
Publication date: 2018-05-15
Anticipated expiration: 2027-06-19

Abstract

The utility model discloses a kind of tensile type shielded cable, it is related to technical field of cables, including multigroup cable core screen unit, inner restrictive coating is enclosed with successively outside multigroup cable core screen unit, internal shield, flame retardant coating, external shielding layer, armor and external sheath layer, gap in inner restrictive coating is filled with waterproof paste, every group of cable core screen unit includes being disposed with copper conductor from inside to outside, conductor shield, crosslinked polyetylene insulated layer, insulation screen and copper strip shielding, the utility model is simple in structure, multiple signal shields, shield effectiveness is good, signal transmission quality is high, tension good mechanical property.

Description

A kind of tensile type shielded cable

Technical field

Cable field is the utility model is related to, more particularly to a kind of tensile type shielded cable

Background technology

Cable is the conveying energy, transmits the indispensable basic equipment of information institute, from social informatization, electrified quick Today of development, electric wire have become one of most important basic product in economic construction.Wires and cables industry is supporting again Industry, product must are fulfilled for requirement of each main industry of national economy to electric wire performance, and national economy feels most industries all Related to electric wire, its industrial status is highly important.

Railway signal cable, railway digital signal cable, cable capable of shielding digital signals in railways, track traffic signal electricity Cable, answering machine data transmission cable are divided into two major classes, when composite sheath structure, second, aluminium sheath structure.

But existing cable its anti-shielding energy force difference, signal are easily interfered, at the same also there are moisture-proof refractory ability it is poor, The shortcomings that tensile strength is weak.

The content of the invention

The utility model overcomes above-mentioned technical deficiency, there is provided a kind of tension moisture-proof, tensile strength is big, shield effectiveness is good Type shielded cable.

The utility model specifically uses following technical scheme to achieve these goals：

A kind of tensile type shielded cable, including multigroup cable core screen unit, multigroup cable core screen unit are enclosed with successively outside Inner restrictive coating, internal shield, flame retardant coating, external shielding layer, armor and external sheath layer, the gap in inner restrictive coating is filled with resistance Water cream, every group of cable core screen unit include being disposed with copper conductor, conductor shield, crosslinked polyetylene insulated from inside to outside Layer, insulation screen and copper strip shielding.

Further, reinforcement cable core is additionally provided with the inner restrictive coating, strengthening core is by the plating of a diameter of 0.2 ~ 0.3mm Zinc steel wire is worked out.

Further, it is cross-linking radiation polyolefin that thickness is 4 ~ 6mm that the external sheath layer and the material of inner restrictive coating stated, which are, Material or cross-linking radiation EP rubbers material.

Further, the flame retardant coating includes copper mesh, expanded granular layer, the mica layer set gradually from inside to outside, institute It is 0.25-0.63mm to state mica layer thickness, and the filament diameter of the copper mesh is 0.26-0.96mm.

Further, internal shield is identical with external shielding layer structure, and internal shield includes the copper foil layer that thickness is 1.2um, The aluminium foil layer that thickness is 15um is coated with copper foil layer.

Further, armor is that the galvanized steel strip that thickness is 1.3 ~ 3.4mm is entwined, and is uniformly arranged on galvanized steel strip There is the heat dissipation aperture of a diameter of 310-520um.

The beneficial effects of the utility model are as follows：

1st, the utility model is simple in structure, every group of cable core screen unit include be disposed with from inside to outside copper conductor, Conductor shield, crosslinked polyetylene insulated layer, insulation screen and copper strip shielding, plus inner shield outside multigroup cable core screen unit The multiple signal of layer and external sheath layer shields, and shield effectiveness is good, and signal transmission quality is high.

2nd, strengthening core is worked out by the zinc-coated wire of a diameter of 0.2 ~ 0.3mm, and tension effect protrudes, plus armor It is that the galvanized steel strip that thickness is 1.3 ~ 3.4mm is entwined, further enhancing the tension mechanical performance of the cable.

Brief description of the drawings

Fig. 1 is a kind of structure diagram of tensile type shielded cable of the utility model；

Reference numeral：1- cores, 1-1- conductors, 1-2- insulating layers, 2- lapping layers, 3- inner sheaths, 4- shielded layers, 5- prevent Fire bed, 6- fireprotection layers, 7- water blocking layers, 8- capsicum element coatings, 9- oversheaths, 10- strengthen cable core.

Embodiment

In order to which those skilled in the art are better understood from the utility model, below in conjunction with the accompanying drawings with following embodiments to this Utility model is described in detail.

Embodiment 1

As shown in Figure 1, the utility model provides a kind of tensile type shielded cable, it is characterised in that including multigroup cable core Screen unit 1, be enclosed with successively outside multigroup cable core screen unit 1 inner restrictive coating 2, internal shield 3, flame retardant coating 4, external shielding layer 5, Armor 6 and external sheath layer 7, the gap in inner restrictive coating 2 are filled with waterproof paste 9, every group of cable core screen unit 1 include from It is interior to being disposed with copper conductor 1-1, conductor shield 1-2, crosslinked polyetylene insulated layer 1-3, insulation screen 1-4 and copper outside Band shielding 1-5.

In the present embodiment, every group of cable core screen unit include be disposed with from inside to outside copper conductor, conductor shield, Crosslinked polyetylene insulated layer, insulation screen and copper strip shielding, plus internal shield and oversheath outside multigroup cable core screen unit The multiple signal shielding of layer, shield effectiveness is good, and signal transmission quality is high

Embodiment 2

The present embodiment is further optimized on the basis of embodiment 1, is specifically：

It is additionally provided with the inner restrictive coating 2 and strengthens cable core 8, strengthening core 8 is by the zinc-coated wire of a diameter of 0.2 ~ 0.3mm Work out.

It is cross-linking radiation polyolefine material or spoke that thickness is 4 ~ 6mm that the external sheath layer 7 and the material of inner restrictive coating 2 stated, which are, According to coupling ethylene propylene rubber material.

Embodiment 3

The present embodiment is further optimized on the basis of embodiment 1 or 2, is specifically：

The flame retardant coating 4 includes copper mesh, expanded granular layer, the mica layer set gradually from inside to outside, the mica layer Thickness is 0.25-0.63mm, and the filament diameter of the copper mesh is 0.26-0.96mm

Internal shield 3 is identical with 5 structure of external shielding layer, and internal shield 3 includes the copper foil layer that thickness is 1.2um, copper foil layer On be coated with thickness be 15um aluminium foil layer.

Armor 6 is that the galvanized steel strip that thickness is 1.3 ~ 3.4mm is entwined, and is evenly arranged with galvanized steel strip a diameter of The heat dissipation aperture of 310-520um.

The above, is only the preferred embodiment of the utility model, is not intended to limit the utility model, the utility model Scope of patent protection be subject to claims, what every specification and accompanying drawing content with the utility model was made is equal Structure change, similarly should be included in the scope of protection of the utility model.

Claims

1. a kind of tensile type shielded cable, it is characterised in that including multigroup cable core screen unit（1）, multigroup cable core screen unit （1）Inner restrictive coating is enclosed with successively outside（2）, internal shield（3）, flame retardant coating（4）, external shielding layer（5）, armor（6）With outer shield Jacket layer（7）, inner restrictive coating（2）Interior gap is filled with waterproof paste（9）, every group of cable core screen unit（1）Include from it is interior to It is disposed with copper conductor outside（1-1）, conductor shield（1-2）, crosslinked polyetylene insulated layer（1-3）, insulation screen（1-4） With copper strip shielding layer（1-5）.

2. tensile type shielded cable according to claim 1, it is characterised in that the inner restrictive coating（2）Inside it is additionally provided with Strengthen cable core（8）, strengthen cable core（8）It is to be worked out by the zinc-coated wire of a diameter of 0.2 ~ 0.3mm.

3. tensile type shielded cable according to claim 1, it is characterised in that the external sheath layer stated（7）And inner restrictive coating （2）Material be cross-linking radiation polyolefine material or cross-linking radiation EP rubbers material that thickness is 4 ~ 6mm.

4. tensile type shielded cable according to claim 1, it is characterised in that the flame retardant coating（4）Including from inside to outside Copper mesh, expanded granular layer, the mica layer set gradually, the mica layer thickness are 0.25-0.63mm, the list of the copper mesh The a diameter of 0.26-0.96mm of silk.

5. tensile type shielded cable according to claim 1, it is characterised in that the internal shield（3）And external shielding layer （5）Structure is identical, internal shield（3）Including the copper foil layer that thickness is 1.2um, the aluminium foil that thickness is 15um is coated with copper foil layer Layer.

6. tensile type shielded cable according to claim 1, it is characterised in that the armor（6）Be thickness for 1.3 ~ The galvanized steel strip of 3.4mm is entwined, and the heat dissipation aperture of a diameter of 310-520um is evenly arranged with galvanized steel strip.