CN203721334U

CN203721334U - Dual-core composite cable with pilot core pair

Info

Publication number: CN203721334U
Application number: CN201320831812.1U
Authority: CN
Inventors: 储亚庆; 蒋俞飞; 章建萍; 王勇; 陈晓军; 王琴
Original assignee: Wuxi Jiangnan Cable Co Ltd
Current assignee: Wuxi Jiangnan Cable Co Ltd
Priority date: 2013-12-17
Filing date: 2013-12-17
Publication date: 2014-07-16
Anticipated expiration: 2023-12-17

Abstract

The utility model provides a dual-core composite cable with a pilot core pair. The cable comprises phase cores, earth cores, a pilot core pair and a sheath. The earth cores are a plurality of individual conductors with insulation. The earth cores and the at least one pilot core pair, each forming an arc segment, are evenly distributed on the outer circumference of the phase cores concentrically. A sheath is extruded on the outmost layer. As the earth cores and the at least one pilot core pair are evenly distributed around the phase cores concentrically together, the phase cores undertaking power transmission are located at the inmost layer. The earth cores and the pilot core pair can function as a steel wire armor and protect the phase cores well, so that damage caused by external force is effectively reduced.

Description

A kind of with controlling two right core composite cables of core

Technical field

The utility model relates to power cable field, specifically a kind of with controlling two right core composite cables of core.

Background technology

Along with the develop rapidly of the universal and information industry of computer technology, intelligent residential areaization has become the development trend of modern architecture, by the comprehensive wiring system that formed by composite cable etc. the communication in intelligent construction, computer and various device and facility, include under certain conditions comprehensive wiring system in, be interconnected to form complete supporting entirety, to realize highly intelligentized requirement.

Two core composite cables of the band control core of prior art, conventionally structure is that to be extruded with the circular core of insulation stranded by controlling cable core, or semicircle, segment conductor-core stranded after with to control cable core stranded.No matter be the stranded of which kind of form, core gap is larger, not only make cable roundness poor, and extrude and the process such as construction in easily loose, and core easily channels bit, conventionally add packing material stranded together, and skin need be tightened with band when stranded for this reason, after stranded or stranding, extrude again sheath.Two core composite cables of this structure band control cable core, not only cable core poor stability, and material usage is large, has also increased cable weight and cost.As adopt two stranded segment conductor-core structures, although cable core stability improves, core is processed into sector structure, processes round core complexity, needs strict control segment angle and fan-shaped height, and easily occurs the phenomenons such as in uneven thickness, insulating barrier splits; Secondly, no matter be two core composite cables of the band control cable core of which kind of stranded form, lay configuration, increases actual core length, waste material, increase weight, and cable cost increases; Again, this structure also makes the outside diameter of cable larger, especially large specification cable, and large external diameter has not only increased manufacture, transport difficulty, and takies that to lay space large.Besides, the composite cable power core of structure is larger to the electromagnetic interference of control core conventionally.

Utility model content

The utility model, in order to solve the problem of prior art, provides a kind of signal to disturb little, simultaneously transferring electric power and control signal, winding displacement more rationally, closely, compact conformation, external diameter is little, is easy to the two right core composite cables of band control core of processing and convenient construction.

The utility model comprise phase core, core, control core to, sheath, described ground core is the single conductor of some tape insulations, with at least one pair of control core to together with, respectively become a segmental arc, be distributed on one heart on phase core excircle, outermost layer is extruded with sheath.

Described control core, to comprising two control cores that directly drag, is surrounded with metal screen layer outward at control core.

After the outer wrapped metal screen layer of described phase core, be surrounded with band, or be extruded with thin sheath.

Described metal screen layer is metal knitted screen.

Described ground core single conductor is with to control core highly identical to 3, equidistant gap arrangement or be covered with phase core periphery.

The utility model beneficial effect is:

1, simultaneously transferring electric power and control signal, and have mutually metal screen layer to shield, independent mutually, signal disturbs little;

2, phase core, core all directly drag, saved packing material and band, reduced the waste of material of stranded increase length, alleviated weight.

3, compared with prior art, winding displacement more rationally, closely, has reduced to lay space, easy construction.

4, core with control core to together with concentric being distributed on outside phase core; make the phase core of bearing electric power transfer be positioned at innermost layer; not only can play similar steel wire armoured effect, can play a very good protection to phase cable core, effectively alleviate and damaged by external force.

Brief description of the drawings

Fig. 1 is utility model structural representation.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figure 1, the utility model comprise phase core 2, core 1, control core to 3, sheath 4, it is characterized in that: the single conductor that described ground core 1 is some tape insulations, control core to together with 3 with at least one pair of, each one-tenth one segmental arc, be distributed on one heart on phase core 2 excircles, outermost layer is extruded with sheath 4.

Described control core comprises two control cores that directly drag to 3, is surrounded with metal screen layer outward at control core.

After the outer wrapped metal screen layer of described phase core 2, be surrounded with band, or be extruded with thin sheath.

Described metal screen layer is metal knitted screen.

Core 1 single conductor in described ground is with to control core highly identical to 3, equidistant gap arrangement or be covered with phase core periphery.

The utility model can be phase line core, core cross-sectional sizes equate etc. two cored structures, can be also that phase line core cross-sectional sizes is equal, " small one and large one " structure that core cross section, ground is less.

The concrete application approach of the utility model is a lot; the above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model principle; can also make some improvement, these improve and also should be considered as protection range of the present utility model.

Claims

1. one kind with controlling two right core composite cables of core, comprise phase core (2), core (1), control core to (3), sheath (4), it is characterized in that: the single conductor that described ground core (1) is some tape insulations, control core to together with (3) with at least one pair of, each one-tenth one segmental arc, be distributed on one heart on phase core (2) excircle, outermost layer is extruded with sheath (4).

2. two right core composite cables of band control core according to claim 1, is characterized in that: described control core comprises two control cores that directly drag to (3), are surrounded with metal screen layer outward at control core.

3. two right core composite cables of band control core according to claim 1, is characterized in that: after the outer wrapped metal screen layer of described phase core (2), be surrounded with band, or be extruded with thin sheath.

4. the two core composite cables right according to the band control core described in claim 2 or 3, is characterized in that: described metal screen layer is metal knitted screen.

5. two right core composite cables of band control core according to claim 1, is characterized in that: described ground core (1) single conductor is with to control core highly identical to (3), equidistant gap arrangement or be covered with phase core periphery.