CN202384469U

CN202384469U - Radiofrequency cable with copper-clad-aluminum inner conductor and annular-embossed outer conductor

Info

Publication number: CN202384469U
Application number: CN2011205355755U
Authority: CN
Inventors: 王培强
Original assignee: XINTAI ACOME CABLE CO Ltd
Current assignee: XINTAI ACOME CABLE CO Ltd
Priority date: 2011-12-20
Filing date: 2011-12-20
Publication date: 2012-08-15
Anticipated expiration: 2021-12-20

Abstract

The utility model discloses a radiofrequency cable with a copper-clad-aluminum inner conductor and an annular-embossed outer conductor, which comprises the inner conductor, an insulation layer arranged on the periphery of the inner conductor, and a cable sheath with insulating and protecting functions. The outer conductor is arranged between the insulation layer and the cable sheath, and annular embossing is arranged on the outer conductor evenly. The radiofrequency cable with the copper-clad-aluminum inner conductor and the annular-embossed outer conductor is characterized in that the inner conductor is composed of an inner aluminum core and an outer copper layer arranged on the periphery of the inner aluminum core. The inner conductor is arranged as a composite structure composed of the inner aluminum core and the outer copper layer, so that use amount of copper is reduced effectively and materials are saved while effective transmission of high-frequency signals and strength of the inner core are guaranteed. When the radiofrequency cable is compared to the existing products, copper used is reduced by about 63%, entire product weight is reduced by 32%, and product cost is reduced by 40% based on the calculation according to the prices of the existing materials. The radiofrequency cable with the copper-clad-aluminum inner conductor and the annular-embossed outer conductor has the advantages of simple structure, excellent performance and convenience in application and popularization.

Description

Copper cover aluminum inner wire annular embossing outer conductor radio frequency cable

Technical field

The utility model relates to a kind of copper cover aluminum inner wire annular embossing outer conductor radio frequency cable, in particular, relates in particular to the copper cover aluminum inner wire annular embossing outer conductor radio frequency cable that a kind of inner wire is made up of two kinds of materials.

Background technology

Existing annular embossing radio frequency cable all adopts real core fine copper as inner wire, and copper is as good non-ferrous metal conductor, and its manufacturing cost is increasingly high, and each country is all at the consumption that reduces and practice thrift copper as much as possible.Be used for the transmission course of high-frequency signal at radio frequency cable, minimum frequency of operation is also at hundreds of more than million in the practical application; Because kelvin effect, high-frequency signal is concentrated in the transmission of cable top layer, the closer to the conductor center, signal more if.According to Theoretical Calculation; The depth of penetration of the high-frequency signal of practical application on the radio frequency cable center conductor can be above 0.07 millimeter; That is to say real that sub-fraction of having only the top layer that plays transmitting effect on the center conductor; Therefore we can replace the core of whole conductor with other material, reduce the purpose that copper consumption can keep same transmission performance simultaneously again to reach.

Summary of the invention

The utility model is in order to overcome the shortcoming of above-mentioned technical problem, the copper cover aluminum inner wire annular embossing outer conductor radio frequency cable that provides a kind of inner wire to be made up of two kinds of materials.

The copper cover aluminum inner wire annular embossing outer conductor radio frequency cable of the utility model; The cable jacket that comprises inner wire, is arranged at the peripheral insulating barrier of inner wire and plays insulation and protective effect; Be provided with outer conductor between insulating barrier and the cable jacket, evenly be provided with annular embossing on the said outer conductor; It is characterized in that: said inner wire is made up of the aluminium matter inner core copper skin peripheral with being arranged at aluminium matter inner core.Inner wire is used for the transmission of high-frequency signal, and outer conductor is realized the shielding action of signal, and the insulating barrier between inner wire and the outer conductor is used for the simulates real dummy status, so that drop to the decay of high-frequency signal minimum.Annular embossing is set on the outer conductor, can guarantees that whole radio frequency cable has flexibility preferably, be convenient to transportation, the installation and maintenance of cable.Inner wire adopts aluminium matter inner core and copper outer field structure, under the prerequisite that has guaranteed high-frequency signal normal transmission and the firm performance of inner wire, has reduced the consumption of copper effectively, has realized the purpose of raw material saving.

The copper cover aluminum inner wire annular embossing outer conductor radio frequency cable of the utility model, said copper outer field thickness is 1.0～2.0mm.Because the kelvin effect of high-frequency signal in transmission course, signal only utilizes the 0.07mm of inner wire skin depth, so copper outer field thickness is set to the requirement that 1.0～2.0mm both can satisfy effectively transmitted signal.

The copper cover aluminum inner wire annular embossing outer conductor radio frequency cable of the utility model, the material of said cable jacket is polythene material or halogen-free low-smoke flame retardant material.Generally, cable jacket adopts polythene material can satisfy performance requirement, and when to the fireproofing of cable performance requirement when higher, cable protects and can adopt halogen-free low-smoke flame retardant material.

The beneficial effect of the utility model is: the utility model is set to the composite construction be made up of aluminium matter inner core and copper skin through inner wire; Under the situation that has guaranteed effective transmission of high-frequency signal and inner core intensity; Reduce the consumption of copper effectively, practiced thrift raw material.Radio frequency cable in the utility model is compared copper consumption and has been reduced approximately 63% with existing product, entire product weight reduces 32%, and with the current material calculation of price, product cost reduces by 40%.The utlity model has simple for structure, beneficial effect is preferable and be convenient to the advantage of application.

Description of drawings

Fig. 1 is the perspective view of the radio frequency cable of the utility model;

Fig. 2 is the cross-sectional structure sketch map of the radio frequency cable of the utility model;

Fig. 3 is the vertical section structure sketch map of the radio frequency cable of the utility model.

Among the figure: 1 inner wire, 2 insulating barriers, 3 outer conductors, 4 cable jackets, 5 copper skins, 6 aluminium matter inner cores.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Like Fig. 1, Fig. 2 and shown in Figure 3, provided the structural representation of solid, cross section and the longitudinal section of the utility model, it comprises inner wire 1, insulating barrier 2, outer conductor 3, cable jacket 4; Insulating barrier 2 is arranged between inner wire 1 and the outer conductor, and cable jacket 4 is arranged at the periphery of outer conductor 3.Inner wire 1 is used for the transmission of high-frequency signal, and insulating barrier 2 has realized that inner wire 1 and outer conductor 3 are in metastable coaxial state, have guaranteed effective long-distance transmissions of signal.Insulating barrier 2 is not; Insulating effect, cable final insulation performance mainly is after insulating barrier is provided with, could determine, so the selection of insulating layer material is very important with its structure; Can adopt the nitrogen gas foaming insulating material, it has the advantage that decay is low, impedance is low and return loss is little.Be positioned at the aluminium matter inner core 6 at center and be arranged at copper outer 5 of aluminium matter inner core 6 peripheries and formed inner wire 1 jointly; Because the kelvin effect of high-frequency signal in transmission course; High-frequency signal transmits on copper outer 5; Be positioned at the intensity that inner aluminium matter inner core has not only effectively guaranteed inner wire 1, also effectively reduced the consumption of copper, meet the strategic requirement that country utilizes about non-ferrous metal.

Wherein, copper outer 5 thickness can be chosen between 1.0～2.0mm, all the requirement of satisfiability ability; Copper outer 5 thickness is preferably 0.12mm.The utility model is in the process of making; Aluminium matter inner core 6 can adopt the technology of no seam welding and drawing that two kinds of materials are combined with copper outer 5; Form complete inner wire structure, the insulating barrier 2, outer conductor 3 and the cable jacket 4 that constitute with foam insulating material then constitute complete cable together.

The design and traditional design are thought comparison, and on the basis of same transmission performance, the inner wire copper consumption has only 37% of traditional design, greatly reduces cost.Press the actual product test result analysis, it is about 63% that new design centre conductive copper consumption has reduced, and entire product weight reduces 32%, and with the current material calculation of price, product cost reduces by 40%.

Claims

1. copper cover aluminum inner wire annular embossing outer conductor radio frequency cable; The cable jacket (4) that comprises inner wire (1), is arranged at the peripheral insulating barrier (2) of inner wire and plays insulation and protective effect; Be provided with outer conductor (3) between insulating barrier and the cable jacket, evenly be provided with annular embossing on the said outer conductor; It is characterized in that: said inner wire (1) is by aluminium matter inner core (6) and be arranged at peripheral copper skin (5) formation of aluminium matter inner core.

2. copper cover aluminum inner wire annular embossing outer conductor radio frequency cable according to claim 1, it is characterized in that: the thickness of said copper skin (5) is 1.0～2.0mm.

3. copper cover aluminum inner wire annular embossing outer conductor radio frequency cable according to claim 1 and 2, it is characterized in that: the material of said cable jacket (4) is polythene material or halogen-free low-smoke flame retardant material.