CN206497760U - A kind of armored cable - Google Patents

Abstract

The utility model discloses a kind of armored cable, including armouring protection pipe, insulating protective layer and some cores；Described core is arranged in described armouring protection pipe, and described core is made up of electric conductor and the cable core protective layer being coated on outside it；Described insulating protective layer is coated on the outside of described armouring protection pipe；Described armouring protection pipe is the body being made up of aluminum substrate, and the inner surface of the body is attached with interior passivation layer, and inner macromolecule insulating thin layer is compounded with the interior passivation layer.It is the utility model service life length, safe, with good insulating properties and high-voltage resistance capability.Product perfect heat-dissipating, stability is high.

Description

A kind of armored cable

Technical field

The utility model belongs to field of material engineering technology, and in particular to a kind of armored cable.

Background technology

Cable increases the service life plus the purpose of armor except strengthening the mechanical protections such as tensile strength, compression strength Outside, cable interference free performance is more importantly improved by shielding protection.Conventional armoring material has steel band, steel wire, aluminium strip, aluminium Pipe etc..Armored cable can directly buried installation and from poling, it is and good and cheap more in practice.

However, existing aluminium alloy armored cable, is entirely plate, band, paper tinsel that various aluminum alloy materials are processed into various thickness Material is carried out strengthening cable, and these materials are used in the state of being completely in light aluminium or steel, excessively any place of its surface free Reason.Due to cable under various conditions using particularly it is buried in underground when, used under marine environment when, in chemical environment Lower residing use environment very severe when using.Various steam, acid-base property gas, other chemical substances, marine corrosive Worked under gas or fluid, its light aluminum alloy materials easily occurs corrosion and causes cable bad, glue-line to be separated with aluminium alloy layer, sternly Heavy causes cable to scrap and causes big accident.

The content of the invention

For deficiencies of the prior art, the utility model provides a kind of armored cable, it is intended to solve radiating not Good, intensity is high and the problems such as easy generation electrochemical corrosion.

To achieve these goals, the technical solution adopted in the utility model is as follows：

A kind of armored cable, including armouring protection pipe, insulating protective layer and some cores；Described core is set In described armouring protection pipe, described core is made up of electric conductor and the cable core protective layer being coated on outside it；Described Insulating protective layer is coated on the outside of described armouring protection pipe；Described armouring protection pipe is the pipe being made up of aluminum substrate Body, the inner surface of the body is attached with interior passivation layer, and inner macromolecule insulating thin layer is compounded with the interior passivation layer.

Further, the outer surface of the body is attached with outer passivation layer, and outer polymer insulation is compounded with outer passivation layer Film layer.

Further, described aluminum substrate is that thickness is 1000 being, 3000 be of 0.1 ~ 2.0mm, 5000 is or 8000 are Aluminium alloy, its alloy state be O states, H21, H22, H24, H26, H11, H12, H14, H16, H18, H19, H32, H34, H36, H38 or H39.

Further, the thickness of described interior passivation layer and outer passivation layer is 0.5 ~ 1.5 μm, and its composition is aluminum oxide.

Further, the thickness of described inner macromolecule insulating polymer film layer and outer polymer insulation macromolecule membrane layer It it is 10 ~ 200 μm, its material is polyester resin, acrylic resin, PET, PVC, fluorocarbon resin, acrylic resin, epoxy resin Or sand woods resin.

Further, described core is at least 3.

Further, some cable support framves being made up of insulating materials are also arranged at intervals with described body, it is described The internal diameter of cable support frame and armouring protection pipe be adapted, several through holes are provided with the cable support frame, for cable core Line is passed through.

Further, the material of described cable core protective layer and insulating protective layer is foam crosslinked polyethylene.

Further, described through hole is at right angles fan-shaped, and is angularly uniformly distributed using the axis of armouring protection pipe as axle.

Further, described electric conductor is copper twisted pair or metal bar.

Compared with prior art, the utility model has the advantages that：

1st, service life length, safe.Because polymer insulation film layer is compounded in aluminum substrate, with reference to tight It is close, be conducive to the diffusion of heat, concentrated in high voltage package so as to avoid heat and cause deformation and failure.

2nd, good insulation preformance, high-voltage resistance capability are strong.Polymer insulation film layer has certain chemical stability, and blunt Change layer collective effect, improve insulating capacity.

3rd, product perfect heat-dissipating, stability is high.Polymer insulation film layer is compounded in aluminum substrate, with reference to tight It is close, be conducive to the diffusion of heat.

4th, this product uses high polymer material as thin-film material, nontoxic, harmless to human body and surrounding environment, put without any Penetrating property, is a kind of preferable high-tech environmental protection shell product.

5th, the centre of this product is provided with support frame, and cable can be made to be located at the centre of body, can effectively improve in paving If with cable is lost in transportation, be also beneficial to protect polymer insulation film layer.

Brief description of the drawings

Fig. 1 is the structural representation of armored cable；

Fig. 2 is the partial enlargement structural representation of armouring protection pipe；

Fig. 3 is the structural representation of cable support frame.

In figure：1-body；11-interior passivation layer；12-inner macromolecule insulating thin layer；2-insulating protective layer；31-lead Electric body；32-cable core protective layer；4-cable support frame；41-through hole.

Embodiment

The utility model is described in further detail with reference to specific embodiment.

A kind of armored cable, including armouring protection pipe, insulating protective layer 2 and some cores；Described core is set Put in described armouring protection pipe, described core is made up of electric conductor 31 and the cable core protective layer 32 being coated on outside it； Described insulating protective layer 2 is coated on the outside of described armouring protection pipe；Described armouring protection pipe is by aluminum substrate system Into body 1, the inner surface of the body 1 is attached with interior passivation layer 11, and it is exhausted to be compounded with inner macromolecule on the interior passivation layer 11 Edge film layer 12.

Due to being combined for polymer insulation film layer, make coil and aluminum substrate in high voltage package completely isolated, thus Avoid short circuit and electrochemical reaction that cable is directly contacted and is likely to result in aluminum substrate.Again due to polymer insulation film Layer is compounded in aluminum substrate, is tightly combined, is conducive to the diffusion of heat, internally concentrates and draw so as to avoid heat The high voltage package deformation and failure risen.In addition, polymer insulation film layer has certain chemical stability, this is common with passivation layer Effect, can effectively prevent corrosion.

As optimization, the outer surface of the body 1 is attached with outer passivation layer, outer macromolecule is compounded with outer passivation layer exhausted Edge film layer.

As optimization, described aluminum substrate is that thickness is 1000 being, 3000 be of 0.1 ~ 2.0mm, 5000 is or 8000 Line aluminium alloy, its alloy state be O states, H21, H22, H24, H26, H11, H12, H14, H16, H18, H19, H32, H34, H36, H38 or H39.Thickness is excessively thin then insufficient strength, mistake the need for 0.1 ~ 2.0mm can fully meet lithium for non-deformability Thickness can waste of materials.

As optimization, described interior passivation layer 11 and the thickness of outer passivation layer are 0.5 ~ 1.5 μm, and its composition is alumina Thing.Passivation layer is typically what is formed in present acid cleaning process, can prevent the further oxidation of aluminum substrate, can improve aluminium The resistance to corrosion of matter base material；Polymer insulation film layer is also allowed for simultaneously attached thereto by hot composition process, to be formed Compact polymer insulation film layer.

As optimization, the thickness of described inner macromolecule insulating polymer film layer and outer polymer insulation macromolecule membrane layer Degree is 10 ~ 200 μm, excessively thin, easily comes off or is punctured when being impacted, blocked up meeting waste of materials, increases cost.Its Material is polyester resin, acrylic resin, PET, PVC, fluorocarbon resin, acrylic resin, epoxy resin or sand woods resin.It is compound Mode generally uses hot composition process, is allowed to be combined as a whole with aluminum substrate.Polymer insulation film layer can be it is coloured, Can also be colourless.

As optimization, in order to adapt to most of operating mode use conditions, described core is at least 3.

As optimization, some cable support framves 4 being made up of insulating materials are also arranged at intervals with described body 1, Described cable support frame 4 and the internal diameter of armouring protection pipe are adapted, and several through holes 41 are provided with the cable support frame 4, So that core is passed through.Core can so be separated, and, it is to avoid by the position limitation of core within the specific limits The damage that friction and collision belt between core come, drastically increases security.

As optimization, described cable core protective layer 32 and the material of insulating protective layer 2 are foam crosslinked polyethylene.Foam is handed over Connection polyethylene there is good thermal deformation, wearability, chemical proofing, stress crack resistant etc., can play it is good every Disconnected external environment condition, the effect of protection electric conductor 31 and armouring protection pipe.

As optimization, described through hole 41 is at right angles fan-shaped, and angularly uniformly divides using the axis of armouring protection pipe as axle Cloth.So both it had been easy to processing, and had been more favorable to core being uniformly spaced out.

As optimization, described electric conductor 31 is copper twisted pair or metal bar.Electric conductor 31 is relatively conventional electricity Cable, cost is low, and conductor effect is good.

It is to illustrate the utility model example that above-described embodiment of the present utility model, which is only, and is not to this reality With the restriction of new embodiment.For those of ordinary skill in the field, may be used also on the basis of the above description To make other various forms of changes and variation.Here all embodiments can not be exhaustive.It is every to belong to this reality Row of the obvious changes or variations amplified out with new technical scheme still in protection domain of the present utility model.

Claims (10)

1. a kind of armored cable, including armouring protection pipe, insulating protective layer and some cores；Described core is arranged on In described armouring protection pipe, described core is made up of electric conductor and the cable core protective layer being coated on outside it；Described is exhausted Edge protective layer is coated on the outside of described armouring protection pipe；Characterized in that, described armouring protection pipe is by aluminum substrate The body being made, the inner surface of the body is attached with interior passivation layer, inner macromolecule insulation is compounded with the interior passivation layer thin Film layer.

2. armored cable according to claim 1, it is characterised in that the outer surface of the body is attached with outer passivation layer, Outer polymer insulation film layer is compounded with outer passivation layer.

3. armored cable according to claim 1, it is characterised in that described aluminum substrate is that thickness is 0.1 ~ 2.0mm 1000 be, 3000 be, 5000 are or 8000 line aluminium alloys, its alloy state be O states, H21, H22, H24, H26, H11, H12, H14, H16, H18, H19, H32, H34, H36, H38 or H39.

4. armored cable according to claim 2, it is characterised in that described interior passivation layer and the thickness of outer passivation layer are equal For 0.5 ~ 1.5 μm, its composition is aluminum oxide.

5. armored cable according to claim 2, it is characterised in that described inner macromolecule insulating polymer film layer and The thickness of outer polymer insulation macromolecule membrane layer is 10 ~ 200 μm, its material be polyester resin, acrylic resin, PET, PVC, fluorocarbon resin, acrylic resin, epoxy resin or sand woods resin.

6. armored cable according to claim 1, it is characterised in that described core is at least 3.

7. armored cable according to claim 1, it is characterised in that be also arranged at intervals with described body it is some by The cable support frame that insulating materials is made, described cable support frame and the internal diameter of armouring protection pipe is adapted, in the cable branch Several through holes are provided with support, so that core is passed through.

8. armored cable according to claim 1, it is characterised in that described cable core protective layer and the material of insulating protective layer Matter is foam crosslinked polyethylene.

9. armored cable according to claim 7, it is characterised in that described through hole is at right angles fan-shaped, and is protected with armouring The axis of pillar is that axle is angularly uniformly distributed.

10. armored cable according to claim 1, it is characterised in that described electric conductor is copper twisted pair or metal Bar.