CN206134335U - Three -core sheath line - Google Patents

Abstract

The utility model discloses a three -core sheath line, including three conductive core, be three horn shapes and arrange, conductive core outward in proper order the cladding have PE the inner insulating layer, shielding layer and external insulation layer, the shielding layer is woven by aluminum plastic tape and copper wire and is formed, the outer common cladding of external insulation layer has the PVC restrictive coating. The utility model has the advantages of good mechanical strength, surface strength, bending strength, corrosion resistance, anti -interference ability. Adopt PE insulating layer, plastic -aluminum layer and weaving layer to protect conductive core in proper order, can play fine guard action with the outer cladding jointly of three -core to conductive core in the PVC restrictive coating again. The PVC restrictive coating adds the mechanical properties who has butadiene acrylonitrile rubber can improve the PVC material, improves its tensile, wear -resisting and corrosion resisting property.

Description

A kind of three core RVVs

Technical field

This utility model belongs to technical field of electric wires and cables, and in particular to a kind of three cores RVV.

Background technology

With growth in the living standard, the increasing of living space, people are super in order to pursue that large-screen high-resolution degree brings All visual enjoyments, the sound equipment auditory perception of high-fidelity, traditional home theater are had begun to real home theater, are just throwing examination Home theater transition.This home theater be by：One video display system not less than 2 meters of wide screens, it is a set of to reset The audio system (being at least 5.1 sound channel systems) of multichannel audio, along with DVD player, TV set-top box, game machine or computer etc. The line composition of signal source and centre；Projection home theater the very important point is turned to, is to carry out to bury in house decoration Line prepares, because scialyscope can be typically arranged on ceiling, and video source, audio-source such as DVD player, CD player are still put In traditional TV bench, so needing a video line connection scialyscope and video source.If finishing when do not carry out it is pre-buried, with After think it is upper projection have to just walk open-wire line (it is difficult to seeing).In the video wire rod that DVD player is supported at present, most important is exactly color difference line. Color difference line, as this line is made up of three lines of RGB, so being also three color difference lines, is that current home theater is indispensable A kind of line, although in fashionable present of digital line, artificial line has a kind of sensation being eliminated, but color difference line is also simulation at present It is best in line, it is often more important that it supports high definition standard, so will not be eliminated at least in 5-10, this is also color difference line The line of necessary cloth when why fitting up.

With the development and the improvement of people's living standards of modern science and technology, the safety, ring to electric wire product Guarantor property, service life are put forward higher requirement.Existing color difference line is caused due to the refractory material that uses and unreasonable structure Current-carrying capacity of cable is low, and fever phenomenon occurs in cable.Easily decline cable insulation, mechanical strength is reduced.

Utility model content

For the deficiencies in the prior art, this utility model provides a kind of three cores RVV, strong with high temperature resistant fire resistance, Long service life, the advantages of capacity of resisting disturbance is good.

The technical solution adopted in the utility model is as follows：

A kind of three core RVVs, include three conductor wire cores, arrange in triangular shape, are coated outside the conductor wire core successively There are PE inner insulating layers, screen layer and external insulation layer, the screen layer is formed by aluminum plastic belt and proof copper-wire braided, outside the external insulation layer It is coated with jointly PVC sheath layer.

Preferably, the conductor wire core is copper conductor.

Preferably, a diameter of 0.5mm of the copper conductor.

Preferably, the PVC sheath layer is added with nitrile rubber.

Beneficial effect

(1) this utility model has excellent mechanical strength, surface strength, bending strength, corrosion resistance, interference free performance The advantages of.

(2) this utility model is protected to conductor wire core successively using PE inner insulating layers, screen layer and external insulation layer, then It will be coated on outside three cores jointly in PVC sheath layer, conductor wire core can be played a very good protection.

(3) PVC sheath layer is added with the mechanical performance that nitrile rubber can improve PVC material, improve its tension, it is wear-resisting and Decay resistance.

Description of the drawings

Fig. 1 is three core cotton covered wire structural representation of this utility model structure；

Fig. 2 is this utility model sectional view.

Wherein, 1, PVC sheath layer, 2, external insulation layer, 3, screen layer, 4, PE inner insulating layers, 5, conductor wire core.

Specific embodiment

This utility model is further described in detail by specific embodiment below in conjunction with the accompanying drawings, but is not limited to this.

Embodiment 1

As shown in Figure 1, 2, a kind of three cores RVV, includes three conductor wire cores 5, and the conductor wire core 5 is copper conductor, A diameter of 0.5mm, arranges in triangular shape, and the conductor wire core 5 is outer to be coated with PE inner insulating layers 4, screen layer 3 and external insulation successively Layer 2, the screen layer 3 is formed by aluminum plastic belt and proof copper-wire braided, and the external insulation layer 2 is outer to be coated with PVC sheath layer 1, institute jointly State PVC sheath layer 1 and be added with nitrile rubber.

A kind of three core RVVs, include three conductor wire cores, arrange in triangular shape, are coated outside the conductor wire core successively Have outside PE inner insulating layers, the braiding layer and be coated with jointly PVC sheath layer.

Product structure：Using single 0.5mm anaerobic fine copper+import PE insulation+double-deck anaerobic fine copper shielding (+64, aluminium foil Braiding)+high-quality lead-free PVC external insulation+high-quality transparent PVC protective cover material structure.

Conductor wire core：Each ultimate attainment core conductor of three core RVVs, using its quality of Asia best Jiangxi Copper It is excellent, high purity oxygen free copper is produced, copper cash shiny appearance, resistivity are low, with good electric conductivity, safe, sensitive Transmission, more greatly can ensure heart yearn service life, decay less with transmission signal, the spy such as loss of signal is little, transfer rate is high Point.

PE inner insulating layers：Halogen species are not contained using import polythene PE material, in the case of burning, is not discharged halogen Gas, smoke intensity very lack the effusion of non-corrosiveness gas；With good chemical stability, most acid, alkali, You Jirong can be resisted The erosion electric insulating quality of liquid and hot water is good, nontoxic；With more spies such as wear-resisting, acid and alkali-resistance, oil resistant, long service lifes Point；

Screen layer：Aluminum plastic belt high and low temperature resistance is excellent, long service life, every light, and can not only can intercept oxygen Gas.Woven using double-deck anaerobic fine copper, for the electromagnetic interference completely cut off between wire, the mechanism of action of shielding is to connect screen layer Be allowed to completely cut off the external inductive interference voltage to wire, the shielding action of anti-electromagnetic interference；

External insulation layer：Using high-quality leadless flame-retardant PVC Insulation Materials, with good mechanical performance and it is ageing-resistant, use the longevity Life length, in the outer extruded insulation layer protection signal respectively of braiding from external interference, safe and reliable；

PVC sheath layer：Using the unleaded soft PVC of high-quality, with soft, random bending fold, relative thickness be thin, volume It is little, connect it is simple the advantages of；Moistureproof, grease proofing, anti-corrosion. solar control is aging, resistance to combustion, heatproof and the mechanical protection (work of outer jacket Mechanical protection with mainly strengthening to cable).It bears pulling force, collides with, and also does the effect such as anti-with anti-electric, antimagnetic.

This utility model may replace that traditional DVD disc players, TV and other videos are defeated, equipment existing interface, it is unified simultaneously Simplify user terminal wiring, and the data transmission bauds and the lossless transmission audio-video signal of digitized in higher broadband are provided.TV RCA, three colo(u)r streak output signals, input TV box or TV card are used with allotter, it is possible to numeral is seen by terminal of notebook TV.These signals can separately transmit by this utility model as color difference line, so the effect of aberration and the distance of transmission all compare Preferably, advantage is strong antijamming capability.

Claims (4)

1. a kind of three cores RVV, it is characterised in that include three conductor wire cores, arranges in triangular shape, outside the conductor wire core PE inner insulating layers, screen layer and external insulation layer are coated with successively, and the screen layer is formed by aluminum plastic belt and proof copper-wire braided, it is described outer PVC sheath layer is coated with jointly outside insulating barrier.

2. three cores RVV according to claim 1, it is characterised in that the conductor wire core is copper conductor.

3. three cores RVV according to claim 2, it is characterised in that a diameter of 0.5mm of the copper conductor.

4. three cores RVV according to claim 1, it is characterised in that the PVC sheath layer is added with nitrile rubber.