CN208834758U - A kind of space flight and aviation shielded wire - Google Patents

Abstract

The utility model discloses a kind of space flight and aviation shielded wires, including conductor, insulating layer, shielded layer and sheath, the conductor is made of multiply silver-gilt copper wire, insulating layer is equipped on the outside of the conductor, the material of the insulating layer is polytetrafluoroethylene (PTFE), the conductor of insulating layer and insulating layer package collectively forms core, more cores are twisted into cable core, cable core is externally provided with shielded layer, sheath is equipped on the outside of the shielded layer, the utility model has the advantages that the small outside diameter of cable, light weight, pliability height and long service life.

Description

A kind of space flight and aviation shielded wire

Technical field

The utility model belongs to lead technology field, and in particular to a kind of aerospace shielded wire.

Background technique

With the development of Chinese science and technology, communication apparatus has been widely used in every field, the environment being applied to Also increasingly harsher, such as: cable will have the characteristics that high and low temperature resistance and corrosion resistance, high fire-retardance, anti-aging, shock resistance, simultaneously also There is high shielding, low weight, small outer diameter, pliability, to have higher stability and reliability in harsh environment, especially Extremely limited in the laid condition of aerospace field, cable, the cable made must not need smaller outer diameter, lower heavy Amount, better pliability, in the case that use environment is harsh, cable service life and reliability will receive and seriously affect now As.

Utility model content

Technical problem to be solved in the utility model is to propose a kind of aerospace shielded wire, to solve background skill Whole issue in art or one of.

In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model are as follows: a kind of space flight and aviation is led with shielding Line, including conductor, insulating layer, shielded layer and sheath, the conductor are made of multiply silver-gilt copper wire, are set on the outside of the conductor There is insulating layer, the material of the insulating layer is polytetrafluoroethylene (PTFE), and the conductor that insulating layer and insulating layer wrap up collectively forms core, more Root core is twisted into cable core, and cable core is externally provided with shielded layer, is equipped with sheath on the outside of the shielded layer.

Preferably, the conductor is constituted by multiply silver-gilt copper wire is twisted.

Preferably, the silver plating thicknesses of silver-gilt copper wire are greater than 2 microns in the conductor, reduce the resistivity of conductor, reduce and produce The decaying of product entirety, increases the service life of product.

Preferably, the insulating layer is used around packet technology, wherein wrapped overlap rate is 55%-56%.

Preferably, the structure of the shielded layer is that silver coating is wrapped up outside copper wire.

Preferably, the shielded layer uses knitting skill, and wherein count is 90%, and angle of weave is greater than 50 degree.

Preferably, the material of the sheath is soluble type polytetrafluoroethylene (PTFE), is product high temperature resistant work temperature with higher Degree, good electrical insulating property and good corrosion resistance.

The utility model beneficial effect is:

1. apply polytetrafluoroethylene (PTFE) around packet technology, this kind of processing method, thus than other materials same outer diameter feelings Have smaller bending radius and pliability under condition.

2. wrapped using polytetrafluoroethylene (PTFE), material processing special process characteristic makes the uniform external diameter of insulation, concentricity Height, and then stability and reliability with higher in harsh environment.

3. the temperature resistant grade of the conducting wire is high, pliability is high and has good mechanical performance.

Detailed description of the invention

Content expressed by this specification attached drawing and the label in figure are briefly described below:

Fig. 1 is the overall structure diagram of specific embodiment of the present utility model conducting wire.

Wherein: 1- conductor, 2- insulating layer, 3- shielded layer, 4- sheath.

Specific embodiment

Below by the description to embodiment, the shape of for example related each component of specific embodiment of the present utility model Shape, construction, the mutual alignment between each section and connection relationship, the effect of each section and working principle, manufacturing process and operation Application method etc., is described in further detail, to help those skilled in the art to conceive the utility model of the utility model, Technical solution has more complete, accurate and deep understanding.

A kind of space flight and aviation shielded wire, including conductor 1, insulating layer 2, shielded layer 3 and sheath 4, the conductor 1 are It is made of multiply silver-gilt copper wire, insulating layer 2 is equipped on the outside of the conductor 1, the material of the insulating layer 2 is polytetrafluoroethylene (PTFE), absolutely The conductor 1 that edge layer 2 and insulating layer 2 wrap up collectively forms core, and more cores are twisted into cable core, and cable core is externally provided with shielded layer 3, institute It states and is equipped with sheath 4 on the outside of shielded layer 3.

In the present embodiment, in order to improve the electric conductivity of conductor 1, conductor 1 is constituted by multiply silver-gilt copper wire is twisted；In order to Reduce the resistivity of conductor, and then reduce the decaying of product entirety, improves the pliability of product, silver-gilt copper wire in the conductor 1 Silver plating thicknesses be greater than 2 microns；In order to improve the concentricity of product, makes the more uniform stabilization of the structure of product, make product more Softness, insulating layer 2 are used around packet technology, wherein wrapped overlap rate is 55%-56%；The structure of the shielded layer 3 is outside copper wire Silver coating is wrapped up, shielded layer 3 uses knitting skill, and wherein count is 90%, and highdensity braiding guarantees that product has foot Enough mechanical performances, angle of weave are greater than 50 degree, and the pliability of product can be improved in big angle of weave.

Further, the material of the sheath 4 is soluble type polytetrafluoroethylene (PTFE), and soluble type polytetrafluoroethylene (PTFE) is with higher High temperature resistant operating temperature, good electrical insulating property and good corrosion resistance.

The utility model can manufacture to obtain by following technical process: buncher is twisted in the conduct of multiply silver-plated copper stranded wire Conductor 1 carries out teflon insulation layer 2 in 1 external application lapping equipment of conductor and processes, and seven insulating cores require twisted according to chromatography Filamentary silver shielded layer 3 is plated around braiding in outside afterwards, finally squeezes out sheath 4 as required with extrusion equipment, can be clear using chromatography color separation Clear identification core, is easily installed and safeguards.

The utility model is exemplarily described above, it is clear that the utility model implements not by aforesaid way Limitation, as long as not using the method concept of the utility model and the improvement of various unsubstantialities that technical solution carries out, or not It is improved that the conception and technical scheme of the utility model are directly applied into other occasions, in the protection model of the utility model Within enclosing.The protection scope of the utility model should be determined by the scope of protection defined in the claims.

Claims (4)

1. a kind of space flight and aviation shielded wire, including conductor (1), insulating layer (2), shielded layer (3) and sheath (4), feature Be: the conductor (1) is made of multiply silver-gilt copper wire, is equipped with insulating layer (2) on the outside of the conductor (1), the insulating layer (2) material is polytetrafluoroethylene (PTFE), and insulating layer (2) and conductor (1) collectively form core, and more cores are twisted into cable core, cable core It is externally provided with shielded layer (3), is equipped with sheath (4) on the outside of the shielded layer (3)；The conductor (1) is twisted structure by multiply silver-gilt copper wire At；The silver plating thicknesses of silver-gilt copper wire are greater than 2 microns in the conductor (1)；The insulating layer (2) uses around packet technology, wherein around Packet overlap rate is 55%-56%.

2. a kind of space flight and aviation shielded wire according to claim 1, it is characterised in that: the knot of the shielded layer (3) Structure is that silver coating is wrapped up outside copper wire.

3. a kind of space flight and aviation shielded wire according to claim 1, it is characterised in that: the shielded layer (3) uses Knitting skill, wherein count is 90%, and angle of weave is greater than 50 degree.

4. a kind of space flight and aviation shielded wire according to claim 1, it is characterised in that: the material of the sheath (4) For soluble type polytetrafluoroethylene (PTFE).