CN201449755U

CN201449755U - Composite aluminum conducting wire

Info

Publication number: CN201449755U
Application number: CN2009200390191U
Authority: CN
Inventors: 龚欣明; 徐静
Original assignee: Far East Cable Co Ltd; New Far East Cable Co Ltd; Far East Composite Technology Co Ltd
Current assignee: Far East Cable Co Ltd; New Far East Cable Co Ltd; Far East Composite Technology Co Ltd
Priority date: 2009-05-04
Filing date: 2009-05-04
Publication date: 2010-05-05
Anticipated expiration: 2019-05-04

Abstract

The utility model relates to a composite aluminum conducting wire, which is an improvement of the existing soft aluminum stranded conducting wire. The composite aluminum conducting wire is characterized in that the outermost layer of the stranded conducting wire is tightly stranded via hard aluminum conductors, and the inner side of the outermost layer is a composite structure formed by stranding soft aluminum conductors. The composite aluminum conducting wire not only has relatively high electrical conductivity, but also greatly reduces friction scratching during a laying process and reduces electric corona generation probability, and simultaneously, the strength of the hard aluminum conductor is higher than that of the soft aluminum conductor, thereby increasing tension fracture of a total stranded wire and increasing conducting wire laying and operation safety. Otherwise, the composite aluminum conducting wire can reduce diameter of tensile core wire under identical tension fracture, thereby lightening weight and reducing wire hanging sag. The composite aluminum conducting wire is novel in structure.

Description

The clad aluminum lead

Technical field

Utility model is to the improvement of existing soft aluminium stranded conductor, relates in particular to a kind of surface and is difficult for abrasive soft aluminium stranded conductor.

Background technology

Soft aluminum conductor is low because of the relative duralumin conductor of its resistivity, conductance can reach 62%-63%IACS, improve about 1-2% with respect to the duralumin conductor, there is statistics to show that conductance improves 1%, transmission losses will reduce about 1%, therefore people reduce line loss for improving electric energy transmitting efficient, select to adopt the soft aluminum conductor stranded conductor.Yet a major defect of soft aluminum conductor is, its quality is softer relatively, especially case hardness is relatively low, the surface is often abraded because of as easy as rolling off a log frictions such as constructions, the conductive line surfaces scratch is rough, is easy to generate corona, can cause corona loss, cause waste of electric energy, make the advantage forfeiture of selecting soft aluminum conductor or reduce; The glow discharge of corona generation simultaneously also can produce interference near communications service, influences communication quality.In addition, another shortcoming of soft aluminum conductor, the resistance to tension that is exactly lead itself is low relatively.Therefore still having is worth improved place.

The utility model content

The utility model purpose is to overcome the deficiency of above-mentioned prior art, and a kind of lead conductivity height is provided, and the surface is difficult for scratch, can effectively reduce the clad aluminum lead that corona produces.

The utility model purpose realizes, the main improvement is to change the twisted wire structure, make the stranded conductor outermost layer stranded by the duralumin conductor, outer inboard for stranded both of soft aluminum conductor make up composite construction, thus make compound wire, the existing high conductance and the ability that conducts electricity, be that the duralumin conductor layer has stronger anti scuffing ability again because of the surface simultaneously, thereby can effectively prevent lead friction in the laid processes and produce galled spots, overcome the deficiencies in the prior art, realize the utility model purpose.Specifically, utility model clad aluminum lead is formed by aluminium conductor is successively stranded, it is characterized in that the stranded conductor outermost layer is closely stranded by the duralumin conductor, and the outermost layer inboard is by the stranded composite construction of forming of soft aluminum conductor.

The said clad aluminum lead of utility model can be the stranded various naked aluminum conductor of various cross sectional shape aluminium conductors in the prior art, such as but not limited to the naked aluminum conductor of steel core, hole enlargement plain conductor, the naked aluminum conductor of resin-based fibre core, and vibration-proof conductor, or the like.

Said stranded aluminium conductor, its cross section can be round conductors, also can be various molded lines conductors, can also be hollow conductors.Outermost layer mainly plays anti-scratch protective effect, and its conductor lines footpath can be adopted less than the common stranded conductor line of this specification lead footpath.

Utility model clad aluminum lead, owing to adopt the duralumin conductor stranded at the stranded conductor outermost layer, inferior skin and la m adopt soft aluminum conductor stranded, its compound wire still has relative high conductance, outer duralumin conductance reduces atomic, minimum to the influence of lead efficiency of transmission, but really can reduce friction scratch in the laid processes greatly, reduced the probability that corona produces, simultaneously because duralumin conductor intensity is big than soft aluminum conductor relatively, thereby also improved the pull-off force of whole twisted wire, improved conductor laying, the fail safe of operation, or under equal pull-off force, can reduce the tensile core linear diameter, thereby reduction weight reduces the hanging wire sag, is a kind of aluminum conductor of novel structure.

Below in conjunction with 12 specific embodiments; utility model is further understood in exemplary illustration and help; but the embodiment detail only is for utility model is described; do not represent utility model design whole technical schemes down; therefore should not be construed as the technical scheme qualification total to utility model, some do not depart from the unsubstantiality of utility model design and change In the view of the technical staff; for example change or replace, all truely use novel protected scope so that technical characterictic with same or similar technique effect is simple.

Description of drawings

Fig. 1 is the clad aluminum lead first example structure schematic diagram.

Fig. 2 is the clad aluminum lead second example structure schematic diagram.

Fig. 3 is clad aluminum lead the 3rd an example structure schematic diagram.

Fig. 4 is clad aluminum lead the 4th an example structure schematic diagram.

Fig. 5 is clad aluminum lead the 5th an example structure schematic diagram.

Fig. 6 is clad aluminum lead the 6th an example structure schematic diagram.

Fig. 7 is clad aluminum lead the 7th an example structure schematic diagram.

Fig. 8 is clad aluminum lead the 8th an example structure schematic diagram.

Fig. 9 is clad aluminum lead the 9th an example structure schematic diagram.

Figure 10 is clad aluminum lead the tenth an example structure schematic diagram.

Figure 11 is clad aluminum lead the 11 an example structure schematic diagram.

Figure 12 is clad aluminum lead the 12 an example structure schematic diagram.

Embodiment

Embodiment 1: referring to Fig. 1, utility model clad aluminum lead is followed successively by from inside to outside: center resin-based fortifying fibre composite core 1, the outer stranded trapezoidal molded lines conductor 2 of soft aluminium that has, outermost layer are the trapezoidal molded lines conductor 3 stranded compositions of duralumin.

Embodiment 2: referring to Fig. 2, as embodiment 1, be soft aluminium round conductor 4 in the outermost layer wherein.

Embodiment 3: referring to Fig. 3, the clad aluminum lead is followed successively by from inside to outside: core wire twisted cores 5, the outer stranded soft aluminium round conductor 4 that has, outermost layer are the trapezoidal molded lines conductor 3 stranded compositions of duralumin.

Embodiment 4: referring to Fig. 4, as embodiment 3, outermost layer is the Z-shaped molded lines conductor 6 of duralumin.

Embodiment 5: referring to Fig. 5, the clad aluminum lead is followed successively by from inside to outside: center resin-based fortifying fibre composite core 1, and the outer stranded soft aluminium round conductor 4 that has, outermost layer is duralumin round conductor 7 stranded compositions.

Embodiment 6: referring to Fig. 6, as embodiment 5, the center is a steel wire twisted cores 5.

Embodiment 7: referring to Fig. 7, compound hole enlargement aluminum conductor is followed successively by from inside to outside: core wire twisted cores 5, extend out diametered duct 8, and the hole enlargement conduit 8 outer stranded Z-shaped conductors 9 of soft aluminium that have, outermost layer is the Z-shaped conductor 6 stranded compositions of duralumin.

Embodiment 8: referring to Fig. 8, compound hole enlargement aluminum conductor is followed successively by from inside to outside: core wire twisted cores 5, soft aluminium hollow conductor 10 hole enlargement layers, outermost layer are duralumin hollow tile shape conductor 11 stranded compositions.

Embodiment 9: referring to Fig. 9, the clad aluminum lead is followed successively by from inside to outside: center resin-based fortifying fibre composite core 1, soft aluminium hollow conductor 10 hole enlargement layers, outermost layer are the trapezoidal conductor 3 stranded compositions of duralumin.

Embodiment 10: referring to Figure 10, as embodiment 9, the center is a steel wire twisted cores 5.

Embodiment 11: referring to Figure 11, compound hole enlargement aluminum conductor is followed successively by from inside to outside: core wire twisted cores 5, and soft aluminium round conductor 4 is dredged around the hole enlargement layer, and outermost layer is the Z-shaped conductor 6 stranded compositions of duralumin.

Embodiment 12: referring to Figure 12, compound hole enlargement aluminum conductor is followed successively by from inside to outside: the compound expansion tube 12 of center resin-based fortifying fibre, the outer stranded soft aluminium round conductor 4 that has, outermost layer are the trapezoidal molded lines conductor 3 stranded compositions of duralumin.

In the foregoing description, outermost layer duralumin conductor, its line footpath can be adopted less than the common stranded conductor line of this specification lead footpath.

To those skilled in the art; under this patent design and specific embodiment enlightenment; some distortion that can directly derive or associate from this patent disclosure and general knowledge; for example those of ordinary skills will recognize also and can adopt additive method; or the substituting of known technology commonly used in the prior art; and the mutual various combination between feature; those of ordinary skills recognize also can adopt additive method; for example be not to be one deck in the outermost layer; looking transmission capacity need can be several layers; also can be that the different cross section soft aluminum conductor is stranded form this several layers; the stranded conductor cross sectional shape can also be other shapes; strengthening core cross section, lead center also can be other shapes and other materials; or the like unsubstantiality change, can be employed equally, can both realize and basic identical function of the foregoing description and effect; launch for example no longer one by one to describe in detail, all belong to this patent protection range.

Claims

1. the clad aluminum lead is formed by aluminium conductor is successively stranded, it is characterized in that the stranded conductor outermost layer is closely stranded by the duralumin conductor, and the outermost layer inboard is by the stranded composite construction of forming of soft aluminum conductor.

2. according to the described clad aluminum lead of claim 1, it is characterized in that outermost layer duralumin conductor lines directly can adopt less than the common stranded conductor line of this specification lead footpath.