CN203242410U - Small cross section data integration shielded cable - Google Patents

Abstract

The utility model discloses a small cross section data integration shielded cable, mainly comprising a conductor layer, an insulating layer, a sub-shielding layer, an aluminum foil shielding layer, an inner shielding layer, a sheath layer, and an outer shielding layer. The small cross section data integration shielded cable is characterized in that the conductor layer is formed by intertwisting multiple soft circular silver-plated copper wires of an identical diameter in a manner that the copper wires are intertwisted concentrically and the successive layers of the copper wires are intertwisted along different directions; the insulating layer is formed by polytetrafluoroethylene films which are divided into three layers, and wrapped on the periphery of the conductor layer; the sub-shielding layer is formed by silver-plated copper wires each having a diameter of 0.08 mm and woven outside the insulating layer; the inner shielding layer is formed by tin-plated copper wires and tightly woven on the periphery of the aluminum foil shielding layer; the sheath layer is an TPU elastic body which is tightly wrapped on the periphery of the inner shielding layer formed by the tin-plated copper wires; and the outer shielding layer is formed by tin-plated steel wires each having a diameter of 0.15 mm and woven outside the sheath layer formed by the TPU elastic body. The small cross section data integration shielded cable has multiple layers of shielding protection and is very obviously advantaged in shielding effect in the case of comprehensive wiring which is large in number of transmission signal types, week in signal, and low in required loss.

Description

A kind of small bore data integration shielded type cable

Technical field

The utility model relates to a kind of power cord cable, more specifically to a kind of small bore data integration shielded type cable.

Background technology

Along with the development of modern information technologies Highgrade integration, the communication cable has entered the every field of wire communication at present, but communication cable place device interior exists various interference to perplex people's actual use always.Shielded type cable is low because of the loss that it has, transmission frequency bandwidth, little, lightweight, the anti-electromagnetic interference of capacity large volume, be difficult for the advantages such as cross-talk, enjoys the insider to favor, and develops very fast.The more electric assembly system of integrated form of various combination screen unit class kinds is used more and more widely, and supporting with it electric wire has also been proposed new shielding requirements.Similar shielded type cable one is that polymeric barrier layer materials is more single in the market, and count is lower; The 2nd, the mounting means of shielded type cable mainly adds the wiring of screen with single conductor, the waste wiring space, and the use amount of increase cable also can cause the phase mutual interference between cable; The 3rd, conventional shielded type cable easily produces the imperfect earth phenomenon, and shielding itself may become a radiation source during improper use, generates the current earthing loop, or receives ambient radiation, and the data cable of Xiang Xiangling sends harmful interference.The 4th, tensile strength a little less than, can't normally use in the occasion that environment is abominable; The 5th, conventional serviceability temperature is that-15 ℃～+ 70 ℃, fire protecting performance are relatively poor, and under the different regional climate conditions, the scope of application is limited.

The utility model content

In order to overcome the defective of above-mentioned prior art, it is a kind of by the textural association mode that changes cable, the shield effectiveness that improves cable that the utility model provides, phase mutual interference when remedying the concentrated use of classical signal cable, a kind of small bore data integration shielded type cable that loss is large, capability of resistance to radiation is low.

The utility model is realized by following scheme, a kind of small bore data integration shielded type cable, mainly comprise conductor layer 1, insulating barrier 2, sub-shield 3, aluminium platinum screen 4, internal shield 5, restrictive coating 6, outer shielding layer 7, wherein: described conductor layer 1 be by the identical soft round silver-gilt copper wire of some diameters by concentric type and in succession each level form so that different directions is stranded;

Described insulating barrier 2 insulating barriers adopt the polytetrafluoro film divide three layers wrapped around conductor layer 1;

Described sub-shield 3 is to be that the 0.08mm silver-gilt copper wire is woven in insulating barrier 2 skins by filament diameter;

Described internal shield 5 closely is woven in aluminium platinum screen 4 peripheries for tinned copper wire, adds respectively that at the positive and negative conducting surface of aluminium platinum a diameter is the zinc-plated drainage thread of 0.41mm;

Described restrictive coating 6 is the TPU elastomers all around that closely are coated on tinned copper wire internal shield 5;

Described outer shielding layer 7 is that the employing filament diameter is that the 0.15mm tin plated steel wire is woven in TPU elastic body jacket layer 6 skin.

The utlity model has in sum following beneficial effect: the conductor layer core can be single core, can be two cores, four-core also, and geometry is fixed, and stability is high, but very little on the curvature impact of cable; Adopted respectively silver-plated silk woven shield; aluminium platinum screen; tin plated wire woven shield and tin plated steel wire braiding protective layer; has the multiple shield protection; aluminium platinum composite band composite sheath; not only played the effect of electromagnetic shielding but also played radially moistureproof effect; screen had both played the externally effect of emission of electromagnetic wave that suppresses; can be used as again the passage of short circuit current; can play the protective effect of neutral core; especially many in the signal transmission kind; a little less than the signal; require in the low comprehensive wiring of loss; shield effectiveness is with the obvious advantage, therefore is widely used in Aero-Space; radar; battlebus; instrument and meter; the more electric assembly system of integrated form of the combination screen unit class kind such as communication equipment.

Description of drawings

Fig. 1 is the utility model structural representation;

Wherein: 1-conductor layer, 2-insulating barrier; The 3-sub-shield; 4-aluminium platinum screen; The 5-internal shield; The 6-restrictive coating; The 7-outer shielding layer.

Embodiment

As shown in Figure 1, a kind of small bore data integration shielded type cable, mainly comprise conductor layer 1, insulating barrier 2, sub-shield 3, aluminium platinum screen 4, internal shield 5, restrictive coating 6, outer shielding layer 7, wherein: described conductor layer 1 be by the identical soft round silver-gilt copper wire of some diameters by concentric type and in succession each level form so that different directions is stranded;

Described insulating barrier 2 insulating barriers adopt the polytetrafluoro film divide three layers wrapped around conductor layer 1;

Described sub-shield 3 is to be that the 0.08mm silver-gilt copper wire is woven in insulating barrier 2 skins by filament diameter;

Described internal shield 5 closely is woven in aluminium platinum screen 4 peripheries for tinned copper wire, adds respectively that at the positive and negative conducting surface of aluminium platinum a diameter is the zinc-plated drainage thread of 0.41mm;

Described restrictive coating 6 is the TPU elastomers all around that closely are coated on tinned copper wire internal shield 5;

Described outer shielding layer 7 is that the employing filament diameter is that the 0.15mm tin plated steel wire is woven in TPU elastic body jacket layer 6 skin.

The utility model is to implement like this, as shown in Figure 1, the conductor wire core 1 of cable be well-regulated by the identical soft round silver-gilt copper wire of some diameters, by concentric type and in succession each level form so that different directions is stranded.Polytetrafluoro film wrapping insulation layer 2 is wrapped around silver-gilt copper wire conductor 1, and insulating barrier adopts resistant to elevated temperatures polytetrafluoro film to divide three layers of wrapped moulding.Silver-gilt copper wire sub-shield 3 is to be that the 0.08mm silver-gilt copper wire is woven in polytetrafluoro film wrapping insulation layer 2 skins by filament diameter, and shielding density has played highdensity shield effectiveness greater than 95%.Many inner wires of different size, shield behind the individually shielded or pair twist, after the stranding operation, in its periphery with the aluminium coating platinum screen 4 of the mode 100% of vertical bag, tinned copper wire internal shield 5 closely is woven in aluminium platinum screen 4 peripheries, adds respectively that at the positive and negative conducting surface of aluminium platinum a diameter is the zinc-plated drainage thread of 0.41mm, makes separately fully contact of outer shielding layer in it, for the reliability ground connection of whole cable provides safeguard, shield effectiveness promotes greatly.TPU elastic body jacket layer 6 is pushed around tinned copper wire internal shield 5, is closely coating the internal layer of cable, and the TPU elastomer has excellent mechanical performance and oil resistance, fungus resistance, resistance to wear, and flame retardant rating is high, and whole cable is soft.It is the 0.15mm tin plated steel wire that tin plated steel wire outer shielding layer 7 adopts filament diameter; neatly be woven in TPU elastic body jacket layer with 48 ingot high-speed knitters 6. outer; count is greater than 85%; the tin plated steel wire screen has both increased one deck protective to cable jacket to be risen; again whole cable played shielding protection, resisting radiation interference, remedied fully the puzzlement of phase mutual interference when the classical signal cable is concentrated use.

Production of the present utility model, environment for use are: can satisfy working temperature :-50 ℃～+ 150 ℃, can satisfy storing temperature :-65 ℃～+ 200 ℃, can satisfy ambient humidity:＜95%, can satisfy ambient pressure: normal pressure.Best use state: room temperature: 22 ℃, humidity: 50～60%RH, air pressure: normal pressure

It should be noted that at last: above embodiment is only in order to illustrate the utility model and the described technical scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from technical scheme and the improvement thereof of spirit and scope of the present utility model, all should be encompassed in the claim scope of the present utility model.

Claims (1)

1. A small cross-section data integrated shielded cable, mainly including a conductor layer (1), an insulating layer (2), a separate shielding layer (3), an aluminum-platinum shielding layer (4), an inner shielding layer (5), and a sheath layer (6), the outer shielding layer (7), is characterized in that: the conductor layer (1) is made of several soft round silver-plated copper wires with the same diameter twisted concentrically and successively in different directions of; The insulating layer (2) is wrapped around the conductor layer (1) in three layers with a polytetrafluoro film; The sub-shielding layer (3) is braided by silver-plated copper wire with a diameter of 0.08mm on the outer layer of the insulating layer (2); The inner shielding layer (5) is tinned copper wire tightly braided on the periphery of the aluminum platinum shielding layer (4), and a tinned drain wire with a diameter of 0.41 mm is added to the positive and negative conductive surfaces of the aluminum platinum; The sheath layer (6) is a TPU elastomer tightly wrapped around the inner shielding layer (5) of the tinned copper wire; The outer shielding layer (7) is braided with tinned steel wire with a monofilament diameter of 0.15 mm on the outer layer of the TPU elastomer sheath layer (6).