CN203721249U - Four-core flat cable - Google Patents

Abstract

The utility model discloses a four-core flat cable. The cable is of a flat structure. Three phase cores are arranged in parallel at the center of the cable, a circle of grounding core conductors is arranged outside the phase cores in parallel, the grounding core conductors are wrapped in a wrapping tape, and a sheath is extruded outside the wrapping tape. The four-core flat cable is characterized in that the cable can be moved and bent repeatedly or used vertically, the structure is simple, the external diameter is low, and the cable is easy to process and convenient to construct, etc.

Description

A kind of four-core flat cable

Technical field

The utility model relates to electric wire field, especially a kind of four-core flat cable.

Background technology

Quad in prior art, structure is all by stranded four circular cores that are extruded with insulation conventionally, or four segment conductor-cores are stranded.Quad core comprises fourth class core that four cross-sectional area of conductor are identical or three cross-sectional area of conductor are large, a 3+1 core that cross-sectional area of conductor is little.Four stranded particularly four circular cores of unequal section of circular core are stranded, 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.This structure quad, not only cable core poor stability, and material usage is large, has also increased cable weight and cost.As adopt four 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 the quad 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 quad electromagnetic interference of structure is larger conventionally.

The prior art circular configuration outside diameter of cable is large, in wire casing, lays, and especially needs multi-cable simultaneously when overlapping laying, takies that to lay space still very large, has limited use in small space; 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 four 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, four-core is arranged in parallel simultaneously, has 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, provide one can repeatedly move, bending, vertically use, compact conformation, external diameter is little, is easy to the four-core flat cable of processing and convenient construction.

For solving above technical problem, a kind of four-core flat cable described in the utility model, this cable is flat structure, cable center is provided with three phase cores arranged side by side, at the phase core some ground wire core conductors of a circle of arranging side by side outward, the outer wrapped twining package tape of ground wire core conductor, twining package tape extrudes sheath outward.

Described phase core by phase conductor and wrapped outside phase conductor twining package tape form.

Described phase conductor is by some stranded the forming of monofilament.

The described equidistant gap arrangement of ground wire core conductor or be covered with in phase core periphery, its diameter is identical with the filament diameter that forms phase conductor.

Described ground wire core conductor is solid naked round conductor or is the filled circles conductor that extrudes insulation.

The utility model beneficial effect is:

Compared with prior art, four-core flat cable of the present utility model, 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, and 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 four-core, reduced to lay space, easy construction; Ground core flat is arranged in outside two phase cores arranged side by side side by side; 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; but also can play shielding action, effectively reduce the electromagnetic interference of electric equipment around, and external electromagnetic interference.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

Embodiment

Below in conjunction with accompanying drawing, the utility model is further elaborated:

As shown in Figure 1, a kind of four-core flat cable described in the utility model, this cable is flat structure, cable center is provided with three phase cores 1 arranged side by side, at the outer some ground wire core conductors 4 of a circle of arranging side by side of phase core 1, the outer wrapped twining package tape 3 of ground wire core conductor, twining package tape extrudes sheath 5 outward.Described phase core is by phase conductor 2 and wrappedly form at the outer twining package tape 3 of phase conductor 2; Described phase conductor 2 forms by some monofilament 6 are stranded; The described equidistant gap arrangement of ground wire core conductor 4 or be covered with in phase core periphery, its diameter is identical with monofilament 6 diameters that form phase conductor; Described ground wire core conductor 4 is for solid naked round conductor or for extruding the filled circles conductor of insulation.

Above-mentioned is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvement and adjustment, these improvement and adjustment also should be considered as protection range of the present utility model.

Claims (5)

1. a four-core flat cable, it is characterized in that: this cable is flat structure, cable center is provided with three phase cores (1) arranged side by side, the some ground wire core conductors of a circle (4) of arranging side by side outside phase core (1), the outer wrapped twining package tape (3) of ground wire core conductor (4), twining package tape extrudes sheath (5) outward.

2. four-core flat cable according to claim 1, is characterized in that: described phase core by phase conductor (2) and wrapped outside phase conductor (2) twining package tape (3) form.

3. four-core flat cable according to claim 2, is characterized in that: described phase conductor (2) is by stranded the forming of some monofilament (6).

4. four-core flat cable according to claim 1, is characterized in that: the described equidistant gap arrangement of ground wire core conductor (4) or be covered with in phase core periphery, its diameter is identical with monofilament (6) diameter that forms phase conductor.

5. four-core flat cable according to claim 1, is characterized in that: described ground wire core conductor (4) is for solid naked round conductor or for extruding the filled circles conductor of insulation.