CN207966501U - A kind of shielding type cable - Google Patents

Abstract

A kind of shielding type cable is related to Aviation cable field.The insulated wire cores of built-in two kinds of different-diameters, one of insulated wire cores are externally provided with the inner insulating layer and external insulation layer for being coated with metal coating, and the structure of this conductor shape component shields substantially increases shield effectiveness.The insulating layer of the other three insulated wire cores is set as fan-shaped, and is in contact two-by-two, and peripheral surface forms sector, and tangent with circular cable, ensure that the roundness of insulated wire cores, so that each core position is stablized constant, improves the stability of cable；An at least drainage thread is additionally provided between inner sheath and shielded layer, it can be ensured that shielded layer remains excellent interference free performance, meet bonding requirement after laying and in being used for a long time.

Description

A kind of shielding type cable

Technical field

The utility model is related to Aviation cable field, more particularly to a kind of shielding type cable.

Background technology

The electric wire used under the hot environment of aerospace, existing method is the thick insulating layer of setting, this Structural volume is big, weight is heavy and insulation is easy cracking aging due to high-energy electron radiation in the outer space, and safety and reliability are poor.

Invention content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of shielding type cable, which sets It counts reasonable, simple in structure, has the advantages that small, shield effectiveness is good.

Technical solution used by the utility model is：A kind of shielding type cable, is characterized in that, the first insulated wire cores It is made of the first conductor and the inner insulating layer and external insulation layer that are wrapped in successively outside the first conductor, the second insulated wire cores, third are exhausted Edge core, the 4th insulated wire cores are respectively made of multiple conductors and inner insulating layer, and multiple conductors therein are arranged in fan-shaped, Multiple conductors are wrapped with fan-shaped insulating layer, and the first insulated wire cores insulate with an end face of the second insulated wire cores, the 4th respectively One end face of core is tangent, third insulated wire cores respectively with another end face of second insulated wire cores adjacent with it, third Another end face of insulated wire cores is in contact；It is equipped with groove in the inner surface of the inner insulating layer, in the interior table of external insulation layer Face also is provided with groove, and metal coating is coated respectively in groove；Four insulated wire cores twist together after again on the outside of them It is enclosed with establishment shielded layer, inner restrictive coating, armouring shielded layer and external sheath layer successively, between inner sheath and armouring shielded layer also Equipped with an at least drainage thread.

The utility model has the beneficial effects that：The shielding type cable, the insulated wire cores of built-in two kinds of different-diameters, wherein one A insulated wire cores are externally provided with the inner insulating layer and external insulation layer for being coated with metal coating, the structure of this conductor shape component shields, Substantially increase shield effectiveness.The insulating layer of the other three insulated wire cores is set as fan-shaped, and is in contact two-by-two, peripheral surface shape At sector, and it is tangent with circular cable, it ensure that the roundness of insulated wire cores, so that each core position is stablized constant, improve The stability of cable；An at least drainage thread is additionally provided between inner sheath and shielded layer, it can be ensured that shielded layer after laying and In long-time service, excellent interference free performance is remained, meet bonding requirement.

Description of the drawings

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to these Attached drawing obtains other attached drawings.

Fig. 1 is the structural schematic diagram of shielding type cable in the utility model embodiment；

Number explanation is as follows in figure：1 conductor, 2 inner insulating layers, 3 establishment shielded layers, 4 inner sheaths, 5 armouring shielded layers, outside 6 Sheath, 7 drainage threads, 8 conductors, 9 inner insulating layers, 9-1 grooves, 10 external insulation layers, 10-1 grooves.

Specific implementation mode

Keep the above objects, features, and advantages of the utility model more obvious and easy to understand, below in conjunction with the accompanying drawings 1 and specific Embodiment is described in further detail the utility model.

A kind of shielding type cable that the present embodiment kind uses, cable are internally provided with four insulated wire cores, the first insulated wire Core is made of conductor 8 and the inner insulating layer being wrapped in successively outside conductor 89 and external insulation layer 10, excess-three insulated wire cores difference It is made of multiple conductors 1 and inner insulating layer 2, multiple conductors 1 therein are arranged in fan-shaped, fan-shaped absolutely in 1 outer wrapping of multiple conductors One end face of second insulated wire cores of the edge layer as inner insulating layer 2, the first insulated wire cores and positioned at its both sides, the 4th insulated wire One end face of core is tangent.Third insulated wire cores are respectively and another end face of second insulated wire cores adjacent with it, third are exhausted Another end face of edge core is in contact, the outer circumference surfaces of three insulated wire cores in sector, with the first insulated wire cores it is tangent after, Make the positions of insulated wire cores not malleable, improves the stability of insulated wire cores.It is equipped with groove 9- in the outer surface of inner insulating layer 2 1, it is equipped with groove 10-1 in the inner surface of external insulation layer 10, and metal coating is respectively coated in groove 9-1 and 10-1, two Groove connects, and forms sub-shield, ensure that shield effectiveness.Four insulated wire cores twist together after again on the outside of them successively It is enclosed with establishment shielded layer 3, inner restrictive coating 4, armouring shielded layer 5 and external sheath layer 6, establishment shielded layer 3 therein is compiled for copper wire It is made into type.An at least drainage thread 7 is additionally provided between inner sheath 4 and armouring shielded layer 5, it can be ensured that shielded layer after laying and In long-time service, excellent interference free performance is remained, meet bonding requirement.

Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to In this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power Subject to the protection domain that profit requires.

Claims (1)

1. a kind of shielding type cable, cable is internally provided with four insulated wire cores, which is characterized in that the first insulated wire cores are by first Conductor and the inner insulating layer being wrapped in successively outside the first conductor and external insulation layer composition, the second insulated wire cores, third insulated wire cores, 4th insulated wire cores are respectively made of multiple conductors and inner insulating layer, and multiple conductors therein are arranged in fan-shaped, are led multiple Be enclosed with fan-shaped insulating layer in vitro, the first insulated wire cores respectively with an end face of the second insulated wire cores, the 4th insulated wire cores One end face is tangent, third insulated wire cores respectively with another end face of second insulated wire cores adjacent with it, third insulated wire Another end face of core is in contact；It is equipped with groove in the inner surface of the inner insulating layer, is also set in the inner surface of external insulation layer It is fluted, and metal coating is coated respectively in groove；Four insulated wire cores are wrapped on the outside of them successively again after twisting together Be wrapped with establishment shielded layer, inner restrictive coating, armouring shielded layer and external sheath layer, be additionally provided between inner sheath and armouring shielded layer to A few drainage thread.