CN203721332U - Movable three-core composite flat cable with pilot core pair - Google Patents

Abstract

The utility model discloses a movable three-core composite flat cable with a pilot core pair. The cable is of a flat structure. Two phase cores are laid parallelly and straight at the center of the cable and a wrapping tape winds around the phase cores. A plurality of earth cores and at least one pilot core pair are distributed parallelly around the wrapping tape. An outer sheath is extruded on the outmost layer of the cable. The cable is low in signal interference and can transmit electric power and control signals at the same time. The cable can be repeatedly moved, bent and used vertically. The cable is compact in structure, small in external diameter, easy to process, and convenient for construction.

Description

A kind of with controlling the right removable three core composite flat cables of core

Technical field

The utility model belongs to electric wire field, particularly a kind of with controlling the right removable three core composite flat 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.

The three right core composite cables of band control core of prior art, structure is stranded by controlling cable core and three circular cores that are extruded with insulation conventionally, or three segment conductor-cores are stranded rear stranded with control cable core.Three-core cable core comprises third-class core that three cross-sectional area of conductor are identical or two cross-sectional area of conductor are large, a 2+1 core that cross-sectional area of conductor is little.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.Three 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 three 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 three 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.

Adopt circular shape concentric structure, can dwindle the outside diameter of cable, reduce the waste of material of stranded increase length, alleviated weight, not only reduce to account for deposited space, easy construction, and reduced cost, be also conducive to reduce electric energy loss.But the outside diameter of cable of this structure still very greatly, highly high, when laying in wire casing, especially need multi-cable simultaneously when overlapping laying, take that to lay space still very large, in small space, limited use; Secondly, many round cables when laying installation, are easily wound around between cable together, and identification difficulty, working service trouble; Again, round cable core identification difficulty, particularly three uiform section conductors, need every core all to identify; Besides, while using round cable, due to its constructional feature, the torsional moment that makes whole cable is zero more difficult, a lot of occasions use cables also need repeatedly to move, bending, or vertically use, the torsion adding when the torsion of cable self and manufacture, and the torsion increasing is not noted in installation, especially in the time of vertical use, the stack of cable lower end is born and is discharged the twisting resistance transmitting above, therefore therefore twisting resistance maximum can be distorted distortion, bulge, broken skin until the heart yearn that fractures after the use several months.These are not only easily accidents caused, cause cable short circuit or damage equipment; And cause cable useful life to shorten.Therefore still have and be worth improved place.

In prior art, there is the structure of flat cable of employing, although can repeatedly move, bending, or vertically use, three cores and control cables cable core are arranged in parallel simultaneously, have increased the length of cable, and structure is not compact.

Utility model content

The utility model is to overcome the shortcoming that prior art exists, and provides a kind of signal to disturb little, simultaneously transferring electric power and control signal, can repeatedly move, bending, vertically use, compact conformation, external diameter is little, is easy to the three right core composite flat cables of band control core of processing and convenient construction.

The utility model is disclosed a kind of with controlling the right removable three core composite flat cables of core, this cable is flat structure, two phase cores are directly dragged at the center of described cable side by side, the outer wrapped band of phase core, band arrange side by side outward some ground cores with at least one pair of control core pair, cable outermost layer extrudes oversheath.

Further improve, the phase conductor that described phase core is made up of some monofilament and wrapped insulating barrier in phase conductor form.

Further improve, described control core is to controlling cores, wrappedly control the metal knitted screen outside cores and the thin sheath being extruded in outside metal knitted screen forms at 2 by 2 that directly drag.

Further improve, this cable be phase core, core cross-sectional sizes equate etc. three-core structure or equate " two large one little " structure less with core cross section, ground for phase core cross-sectional sizes.

The beneficial effects of the utility model are:

Compared with prior art, described in the utility model a kind of with controlling the right removable three core composite flat cables of core, transferring electric power and control signal simultaneously, and have mutually metal screen layer to shield, independent mutually, signal disturbs little; Phase core, core all directly drag, saved packing material and band, reduced the waste of material of stranded increase length, alleviated weight.Flat structure, can move, bending repeatedly, or vertically uses; As long as any phase core of identification, can differentiate whole cores; Can not be wound around, between cable, easily, working service is convenient in identification.Flat, highly more circular low, and ground core is divided into some independent conductors, with control core to together with become flat to be arranged in side by side outside two phase cores arranged side by side, length is arranged short simultaneously side by side compared with three cores, reduced to lay space, easy construction.Ground core with control core to together with; flat is arranged in outside two phase cores arranged side by side side by side, makes 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 structural representation of the present utility model.

Embodiment

Below in conjunction with accompanying drawing, execution mode of the present utility model is elaborated.

As shown in Figure 1, a kind of with controlling the right removable three core composite flat cables of core, this cable is flat structure, two phase cores 1 are directly dragged at the center of described cable side by side, the outer wrapped band 2 of phase core 1, outer 24 3 and 2 pairs of the ground cores of arranging side by side of band 2 are controlled core to 4, and cable outermost layer extrudes oversheath 5.

The phase conductor 7 that described phase core 1 is made up of some monofilament 6 and wrapped insulating barrier 8 in phase conductor 7 form.

Described control core is controlled cores 9, is wrappedly controlled the metal knitted screen 10 outside cores 9 and the thin sheath 11 being extruded in outside metal knitted screen 10 forms at 2 by directly drag 24.

This cable can be phase line core, core cross-sectional sizes equate etc. three-core structure, can be also phase line core cross-sectional sizes equate with less " the two large one little " structure in core cross section.

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 (4)

1. one kind with controlling core right removable three core composite flat cables, it is characterized in that: this cable is flat structure, two phase cores (1) are directly dragged at the center of described cable side by side, the outer wrapped band (2) of phase core (1), the outer some ground cores (3) of arranging side by side of band (2) are controlled core to (4) with at least one pair of, and cable outermost layer extrudes oversheath (5).

2. the right removable three core composite flat cables of band control core according to claim 1, is characterized in that: phase conductor (7) and the wrapped insulating barrier in phase conductor (7) (8) that described phase core (1) is made up of some monofilament (6) form.

3. the right removable three core composite flat cables of band control core according to claim 1, is characterized in that: described control core is controlled cores (9), wrappedly controlled the outer metal knitted screen (10) of cores (9) and be extruded in thin sheaths (11) formation outside metal knitted screen (10) at 2 by directly drag 2 (4).

4. the removable three core composite flat cables right according to the band control core described in claim 1,2 or 3 any one claims, is characterized in that: this cable be phase core (1), core (3) cross-sectional sizes equate wait three-core structure or for phase core (1) cross-sectional sizes equate with less " the two large one little " structure in core (3) cross section.