CN203644417U

CN203644417U - Extraordinary flexible fluorescence cable

Info

Publication number: CN203644417U
Application number: CN201320672367.9U
Authority: CN
Inventors: 戴婷婷
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-10-30
Filing date: 2013-10-30
Publication date: 2014-06-11
Anticipated expiration: 2023-10-30

Abstract

The utility model discloses an extraordinary flexible fluorescence cable comprising a plurality of conductor groups; the conductor group is formed by mutually twisting at least two conductors wrapped by low carbon high-molecular fireproof insulator layers and a filling core; each of the conductor groups is longitudinally wrapped by or extruded by an inner taped covering made of non-hygroscopic material; the conductor groups wrapped by inner taped coverings are mutually twisted and bundled to form a cable core wrapped by an outer taped covering; the cable is characterized in that the surface of the outer taped covering is provided with a plurality of rice shaped protrusions; the outer taped covering is wrapped by a total shield layer comprising three structure layers, wherein an inner layer is an aluminium magnesium alloy wire, a middle layer is an electromagnetic shielding overlay, and an outer layer is an iron nickel alloy belt; the total shield layer is wrapped by an outer sheath layer formed through plastic extrusion moulding; the outer sheath layer is formed by a high flame retardation mice-proof ant-proof high density polyethylene sheath and a fluorescence indication strip coated on a surface of the sheath and arranged in a cable extension direction. By employing the design, the extraordinary flexible fluorescence cable is light in weight, better in intensity, and can hardly generate electromagnetic interference when being matched with various electronic devices for usage.

Description

Extraordinary flexible fluorescence cable

Technical field

The utility model belongs to cable technology field, is specifically related to a kind of extraordinary flexible fluorescence cable.

Background technology

Traditional high tensile cable strengthening core is strengthened with high-tensile steel wires, although can meet the requirement of high tensile, but pliability is poor, quality weight, folding and unfolding not freely, is not easy to operation, if select insulation and sheath material that intensity is high, also be difficult to guarantee the requirement of flexible cable high tensile, in order to meet the particularly frequently user demand of mobile electronic equipment of demand in market, just need to adopt novel material and brand-new structural design to develop this special flexible cable.For this reason, Chinese patent CN201220434340.1 discloses a kind of electronic equipment flexible cable of frequent movement, comprise several conductor groups, several conductor groups are made up of conductor and the mutual stranded bunchy of filled core of at least two parcel perfluoroethylene-propylene insulating barriers, conductor adopts 19 stranded forming of tin annealed copper wire bundle that diameter is 0.10mm, the interior lapping layer of the outer all vertical bags of several conductor groups or wrapped non-absorbent material, in parcel, the mutual stranded bunchy of several conductor groups of lapping layer forms cable core, cable core is provided with outer lapping layer outward, the outer extrusion moulding of outer lapping layer has polyether-type flame-retardant thermoplastic polyester elastic body jacket layer.The advantage of this technical scheme is reasonable in design, has the features such as high tensile, wear-resisting, low temperature resistant, resistant to hydrolysis, uvioresistant.But, also exist one obviously not enough, that is: insufficient strength, weight lays particular stress on, and is applied to produce sometimes in electronic equipment electromagnetic interference.

Utility model content

The purpose of this utility model is to provide a kind of special type of new construction flexible fluorescence cable, and not only weight is lighter for it, and intensity is better, and magnetic conduction, absorbing property excellence, in various electronic equipments couplings are used, is difficult for producing electromagnetic interference.

For realizing this purpose, the technical solution of the utility model is: a kind of extraordinary flexible fluorescence cable, comprise several conductor groups, described several conductor groups are made up of conductor and the mutual stranded bunchy of filled core of at least two low carbon macromolecule refractory thermal insulator layers of parcel, outside several conductor groups, all indulge the interior lapping layer of bag or wrapped non-absorbent material, in parcel, the mutual stranded bunchy of several conductor groups of lapping layer forms cable core, cable core is provided with outer lapping layer outward, several grain of rice shape projections are set on described outer lapping layer surface, outer lapping layer is provided with total screen outward, described total screen is three-decker, internal layer is aluminum-magnesium alloy wire, intermediate layer is electromagnetic shielding overlay, skin is iron-nickel alloy band, the outer extrusion moulding of described total screen has external sheath layer, described external sheath layer is by high flame retardant termite-resistant rodent-resistant high density polyethylene (HDPE) sheath and be sprayed at jacket surface and form along the fluorescence bar of cable bearing of trend setting.

As preferably, described grain of rice shape projection is for extruding air bag, described in extrude and in air bag, be extruded with air, described in extrude the quantity of air bag in every square centimeter and be at least 3.

As preferably, the interior lapping layer of described several conductor groups also can be provided with sub-shield outward, and sub-shield adopts tinned wird braiding to form, and count is not less than 90%.

As preferably, described high flame retardant termite-resistant rodent-resistant high density polyethylene (HDPE) jacket outer surface is provided with many staggered hot pressing lines that form by hot pressing, and described multiple staggered hot pressing lines make jacket surface divide several particulate kicks that form.

With respect to prior art, the utility model adopts aluminum-magnesium alloy wire, three layers of composite shielding structure of electromagnetic shielding overlay and iron-nickel alloy band, almag is placed on to innermost layer, a little less than utilizing its magnetic, the feature that density is little, can not produce interference and effectively alleviate cable weight, and iron-nickel alloy band is a kind of strong magnetic material, can effectively overcome the interference of high-intensity magnetic field, using electromagnetic shielding overlay as in ask layer that on the one hand it has good magnetic conduction, absorbing property, also can isolate on the other hand aluminum-magnesium alloy wire and iron-nickel alloy band, prevent that both from producing coupling effect, influence each other and offset magnetic screen, greatly promote electromagnetic pulse-resisting performance of the present utility model.Particularly on lapping layer, several grain of rice shape projections are set outside, in it, are extruded with air, strengthened resistance to extrusion performance of the present utility model.And be provided with many staggered hot pressing lines that form by hot pressing at jacket outer surface, described multiple staggered hot pressing line forms several kicks at jacket surface, make the utility model more reliably in attached cable groove, further reduce its slippage and damage that cable is formed.Be sprayed at jacket surface and make the utility model be easier to identification and maintenance along the fluorescence coating layer of cable bearing of trend setting.

Accompanying drawing explanation

Fig. 1 is the utility model cross-sectional view.

Wherein: 1 is conductor, 2 is insulating barrier, and 3 is filled core, and 4 is interior lapping layer, and 5 is outer lapping layer, and 6 is total screen, and 7 is restrictive coating.

embodiment

The utility model is further illustrated with reference to the accompanying drawings in conjunction with the embodiments.

As shown in Figure 1, a kind of extraordinary flexible fluorescence cable, comprise several conductor groups, described several conductor groups are made up of conductor and the mutual stranded bunchy of filled core of at least two low carbon macromolecule refractory thermal insulator layers of parcel, conductor adopts some stranded the forming of tin annealed copper wire bundle that diameter is 0.10mm, the interior lapping layer of the outer all vertical bags of several conductor groups or wrapped non-absorbent material, in parcel, the mutual stranded bunchy of several conductor groups of lapping layer forms cable core, cable core is provided with outer lapping layer outward, outer lapping layer is provided with total screen outward, described total screen is three-decker, internal layer is aluminum-magnesium alloy wire, intermediate layer is plastic-aluminum combined film, skin is iron-nickel alloy band, the outer extrusion moulding of described total screen has external sheath layer.Wherein, described oversheath wall thickness middle position is provided with two high-tensile steel wires that are parallel to each other and arrange along cable longitudinal direction.The interior lapping layer of described several conductor groups also can be provided with sub-shield outward, and sub-shield adopts tinned wird braiding to form, and count is not less than 85%.Described sub-shield is formed by some the first tinned copper wires as warp and some the second tinned copper wire braidings as parallel, the first tinned copper wire density as warp is 200-220 root/cm, is 210-230 root/cm as the second copper wire density of parallel.

The improvement that the utility model is done mainly for the flexible fluorescence construction of cable of special type, the foregoing is only the utility model preferred embodiment, non-ly therefore limit to the scope of the claims of the present utility model, therefore simple and easy variation and the equivalent transformation of such as doing by the utility model specification and graphic content, all should be contained in the scope of the claims of the present utility model.

Claims

1. the flexible fluorescence cable of special type, comprise several conductor groups, described several conductor groups are made up of conductor and the mutual stranded bunchy of filled core of at least two low carbon macromolecule refractory thermal insulator layers of parcel, outside several conductor groups, all indulge the interior lapping layer of bag or wrapped non-absorbent material, in parcel, the mutual stranded bunchy of several conductor groups of lapping layer forms cable core, cable core is provided with outer lapping layer outward, it is characterized in that, several grain of rice shape projections are set on described outer lapping layer surface, outer lapping layer is provided with total screen outward, described total screen is three-decker, internal layer is aluminum-magnesium alloy wire, intermediate layer is electromagnetic shielding overlay, skin is iron-nickel alloy band, the outer extrusion moulding of described total screen has external sheath layer, described external sheath layer is by high flame retardant termite-resistant rodent-resistant high density polyethylene (HDPE) sheath and be sprayed at jacket surface and form along the fluorescence bar of cable bearing of trend setting.

2. the flexible fluorescence cable of special type according to claim 1, is characterized in that, described grain of rice shape projection is for extruding air bag, described in extrude and in air bag, be extruded with air, described in extrude the quantity of air bag in every square centimeter and be at least 3.

3. the flexible fluorescence cable of special type according to claim 1, is characterized in that, the interior lapping layer of described several conductor groups is provided with sub-shield outward, and sub-shield adopts tinned wird braiding to form, and count is not less than 90%.

4. the flexible fluorescence cable of special type according to claim 1, it is characterized in that, described high flame retardant termite-resistant rodent-resistant high density polyethylene (HDPE) jacket outer surface is provided with many staggered hot pressing lines that form by hot pressing, and described multiple staggered hot pressing lines make jacket surface divide several particulate kicks that form.