CN205384880U

CN205384880U - Conductor transposition structure

Info

Publication number: CN205384880U
Application number: CN201521117762.6U
Authority: CN
Inventors: 欧阳强; 雷雪刚; 王建波
Original assignee: Shenzhen Woer Heat Shrinkable Material Co Ltd; Huizhou LTK Electronic Cable Co Ltd; LTK Electric Wire Huizhou Co Ltd; Shenzhen Woer Special Cable Co Ltd
Current assignee: Huizhou LTK Electronic Cable Co Ltd; LTK Electric Wire Huizhou Co Ltd; LTK Electric Wire Changzhou Co Ltd; Shenzhen Woer Special Cable Co Ltd
Priority date: 2015-12-26
Filing date: 2015-12-26
Publication date: 2016-07-13
Anticipated expiration: 2025-12-26

Abstract

The utility model discloses a conductor transposition structure, it includes: inlayer, intermediate level and skin. Intermediate level cladding inlayer, the external sheath intermediate level. The inlayer comprises a first wire, and the intermediate level comprises around the inlayer a six roots of sensation traverse loop, and the skin comprises at a distance from surrounding the intermediate level first wire of the six roots of sensation and six roots of sensation second wire each other. The radius of first wire is r, the second wire the radius is (img file='DDA0000891360250000011. TIF'wi='157'he='77' /) adopts the utility model discloses a composite conductor cross section that conductor transposition structure goes on stranding is for circular to solved not rounding of 19 piece conventional stranded conductor sectional areas, the insulating layer is decentered problem easily, has saved the quantity of wire, has reduced manufacturing cost.

Description

A kind of conductor strand structure

Technical field

This utility model relates to electric wire field, particularly relates to a kind of conductor strand structure.

Background technology

The production and processing of compound wire requires over multiple conducting wires and carries out stranded forming.As shown in Figure 1, the structure of 19 conventional wire strandings is 1+6+12, and namely internal layer is made up of 1 wire 20, and intermediate layer is wrapped in internal layer by 6 wires 20 and forms, outer layer is wrapped in intermediate layer by 12 wires 20 and forms, and the cross section of the composite conductor that such structure is stranded is regular hexagon.Orthohexagonal structure makes the degree of eccentricity be difficult to control to when parcel insulating barrier, it is easy to cause insulating barrier eccentric, thus it is in uneven thickness to cause that insulating barrier wraps up, thus producing potential safety hazard.

Utility model content

The purpose of this utility model is to overcome weak point of the prior art, it is provided that a kind of conductor strand structure so that the cross section after 19 conductor strand is circular, promotes safety in utilization..

The purpose of this utility model is achieved through the following technical solutions:

A kind of conductor strand structure, including: internal layer, intermediate layer and outer layer, described intermediate layer is coated with described internal layer, intermediate layer described in described external sheath；

Described internal layer is made up of first wire, and described intermediate layer is made up of around described internal layer the six roots of sensation the first conductor loop, and described outer layer is spaced by the six roots of sensation the first wire and the six roots of sensation the second wire and constitutes around described intermediate layer；

The radius of described first wire is r, and the radius of described second wire is

As this utility model one preferred version, the line of the first wire central point of described outer layer and the first wire central point of described internal layer is the point of contact of adjacent two first wires through described intermediate layer, on the extended line that the first wire central point of the first wire central point and described intermediate layer that the second wire central point of described outer layer is positioned at described internal layer is connected.

Compared with prior art, the utility model has the advantage of:

What 1, adopt conductor strand structure of the present utility model carries out stranded composite conductor, owing to cross section is circular so that the degree of eccentricity is controlled, and insulating barrier can be made to wrap up uniformly, thus solving potential safety hazard；

2, comparing tradition for orthohexagonal cross section, conductor of the present utility model is circular cross section, and area is less, and under the premise meeting serviceability, required conductor material is also just less, thus saving the consumption of wire, reduces production cost.

Accompanying drawing explanation

Fig. 1 is the cross-sectional view of 19 conventional conductor strand structures；

Fig. 2 is the cross-sectional view of conductor strand structure of the present utility model.

Detailed description of the invention

Below in conjunction with embodiment and accompanying drawing, this utility model is described in further detail, but embodiment of the present utility model is not limited to this.

Being illustrated in figure 2 conductor strand structure chart of the present utility model, conductor strand structure 10 includes: internal layer 100, intermediate layer 200 and outer layer 300, and intermediate layer 200 is coated with internal layer 100, and outer layer 300 is coated with intermediate layer 200.

Internal layer 100 is made up of first wire 400, and intermediate layer 200 is made up of around internal layer 100 six roots of sensation the first wire 400, and outer layer 300 is spaced by the six roots of sensation the first wire 400 and the six roots of sensation the second wire 500 and constitutes around intermediate layer 200.

The line of the first wire 400 central point of outer layer 300 and the first wire 400 central point of internal layer 100 is the point of contact of adjacent two first wires 400 through intermediate layer 200, on the extended line that the first wire 400 central point of the first wire 400 central point and intermediate layer 200 that the second wire 500 central point of outer layer is positioned at internal layer 100 is connected.

The radius of the first wire 400 is r, and the radius of the second wire 500 is

Being noted that conductor strand structure 10 of the present utility model is for the composite conductor that 19 wire strandings become, the first wire 400 and the second wire 500 are the wire that two kinds of cross-sectional areas differ.

First be combined by said structure by the first wire 400, then the first wire 400 of outer layer 300 is all inscribed within same circle, namely as shown in Figure 2.Again through deriving, the size calculating the second wire 500 is combined.

The radius assuming the first wire 400 is r, then calculate, by deriving, the radius that can calculate the second wire and be

Derivation is as follows: the radius assuming the first wire 400 is r, as shown in Figure 2, A is the central point line with the point of contact of adjacent two first wires 400 of the first wire 400, and the line being the central point of the first wire 400 that radius r, C are internal layer 100 and the central point in intermediate layer 200 is 2r.B is the line at the point of contact of central point two piece first wires 400 adjacent with intermediate layer 200 of the first wire 400 of internal layer 100, and namely A and B is vertical, and calculating B according to Pythagorean theorem is

So the radius of the circular cross section of whole composite conductor is

The radius assuming the second wire 500 is a, thenSo the radius that can derive the second wire 500 is

So when the radius of the first wire 400 is r, the radius of the second wire 500 is

The radius of the second corresponding wire 500 can be derived according to the radius of the first wire 400 by above-mentioned conclusion, thus the wire of the two kinds of different sizes cooperated can be designed, and carry out stranded according to conductor strand structure of the present utility model, thus produce the composite conductor that cross section is circle.

Compared with prior art, the utility model has the advantage of:

Above-described embodiment is this utility model preferably embodiment; but embodiment of the present utility model is also not restricted to the described embodiments; other any without departing from the change made under spirit of the present utility model and principle, modification, replacement, combination, simplification; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.

Claims

1. a conductor strand structure, it is characterised in that including: internal layer, intermediate layer and outer layer, described intermediate layer is coated with described internal layer, intermediate layer described in described external sheath；

2. conductor strand structure according to claim 1, it is characterized in that, the line of the first wire central point of described outer layer and the first wire central point of described internal layer is the point of contact of adjacent two first wires through described intermediate layer, on the extended line that the first wire central point of the first wire central point and described intermediate layer that the second wire central point of described outer layer is positioned at described internal layer is connected.