CN213183734U - Aviation super-six-type network cable - Google Patents

Abstract

The utility model discloses an aviation is with surpassing six types of net twines, including signal group, signal ground wire sinle silk, bare grounding line, insulating layer, around package shielding layer, weave total shielding layer and sheath, signal ground wire sinle silk is located the center, four groups the signal group is around signal ground wire sinle silk evenly distributed, the signal group includes signal wire sinle silk and around the branch shielding layer outside the signal wire sinle silk, the signal group is around signal ground wire sinle silk transposition formation cable core, the bare grounding line sets up in the cable core outside, wrap up in the cable core outside around the package shielding layer, weave total shielding layer and sheath and wrap up in proper order in the package shielding layer outside; an insulating layer is filled among the signal wire group, the signal ground wire core and the bare ground wire, the insulating layer adopts a microporous polytetrafluoroethylene tape and polyimide tape mixed wrapping structure, the wrapping covering rate is 50% -51%, and the insulating concentricity is 95% -97%. The manufactured network cable can solve the problems of large return loss and no high temperature resistance of the existing aviation super-six network cables.

Description

Aviation super-six-type network cable

Technical Field

The utility model relates to a communication cable technical field specifically is an aviation is with surpassing six types of net twines.

Background

With the upgrading and upgrading of electronic equipment in aerospace aircrafts, the requirements of signal transmission on attenuation and return loss are higher and higher, particularly the stability of the whole system, and meanwhile, the requirements of military components on high temperature resistance of-60 to +180 ℃ are also required. The high temperature resistance of the existing super six-type network cable for civil aviation is not in line with the requirement of-40 to +90 ℃, and the attenuation and return loss of the military super five-type network cable can not meet the system requirement, so the development of the super six-type network cable for military light aviation is imperative. Patent CN209674981U discloses a double-shielded network cable, which comprises an outer layer sheath, an outer layer shielding aluminum foil and four twisted pairs from outside to inside; each twisted pair is wrapped by a twisted pair shielding aluminum foil, and each wire of the twisted pairs comprises a wire core and an insulating layer wrapping the wire core; the outer layer shielding aluminum foil also comprises tearing lines arranged in parallel with the four twisted pairs; the wire core is a copper wire with a smooth surface; the outer sheath is a PVC or LSZH outer sheath with a flat cylindrical surface on the outer surface. The double-shielding network cable adopts an aluminum foil double-layer shielding structure, each pair of cables is wrapped by an aluminum foil shield, signal attenuation is reduced, external signals are prevented from interfering the cables, weather resistance is good, durability is achieved, and smooth proceeding of various applications is guaranteed. When the product is used, the inner wire pair is very easy to deform in insulation under a high-temperature environment (100-180 ℃), so that the insulation concentricity and the pair twist pitch are influenced, and finally, the indexes of attenuation, return loss, impedance and the like in the transmission process of the product do not meet the requirements, so that the product is not suitable for aerospace use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a military aviation is with super six types of net twines suitable for aerospace to the decay is unqualified under the high temperature environment who proposes in solving above-mentioned background art, echo consumes big scheduling problem.

In order to achieve the above object, the utility model provides a following technical scheme: the aviation super-six types of network cables comprise signal wire groups, signal ground wire cores, bare ground wires, insulating layers, wrapped shielding layers, a woven total shielding layer and sheaths, wherein the signal ground wire cores are positioned at the center, four groups of signal wire groups are uniformly distributed around the signal ground wire cores, each signal wire group comprises a signal wire core and a sub-shielding layer wrapped outside the signal wire cores, the signal wire groups are twisted around the signal ground wire cores to form a cable core, the bare ground wires are arranged on the outer side of the cable core, the wrapped shielding layers are wrapped on the outer side of the cable core, and the woven total shielding layer and the sheaths are sequentially wrapped on the outer side of the wrapped shielding layer; the insulating layer is filled among the signal line group, the signal ground wire core and the bare ground wire, the insulating layer adopts a microporous polytetrafluoroethylene tape and polyimide tape mixed wrapping structure, the wrapping covering rate is 50% -51%, and the insulating concentricity is 95% -97%. The insulating layer is wrapped by a microporous polytetrafluoroethylene tape and a polyimide tape in a mixed mode, the normal working temperature can reach-65-250 ℃, the stability of the insulating structure of the insulating layer in a high-temperature environment is excellent, and transmission indexes such as attenuation, return loss and the like in the high-temperature environment are guaranteed to meet requirements.

As a further improvement of the above technical solution:

the signal wire core, the signal ground wire core and the bare ground wire are made of silver-plated round copper stranded wires, the structure is 19/0.134mm, and the outer diameter is 0.64 mm.

The outer diameter of the insulating layer is 1.35 mm.

The cable core pitch length is no more than 16 times of the outer diameter of the strand, and the color of the wire core of the signal wire is as follows: white/blue, white/orange, white/green, white/red arrays.

The sub-shielding layer is wrapped by a polyester aluminum plastic composite tape, and the wrapping overlapping rate is at least 50%.

The lapping shielding layer is a copper strip lapping layer, and the lapping overlapping rate is 30% -50%.

The total woven shielding layer is woven by adopting a polyester aluminum-plastic composite tape mixed silver-plated round copper wire, the lapping and covering rate of the polyester aluminum-plastic composite tape is at least 30%, and the weaving density of the silver-plated round copper wire is at least 85%.

The sheath is extruded by fluorinated ethylene propylene, the thinnest point of the sheath is 0.28mm, and the maximum outer diameter of the sheath is 8.8 mm.

And aramid ropes are filled between the cable cores and the wrapping shielding layers.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an aviation is with six types of net twines of surpassing including the signal line sinle silk, signal ground wire sinle silk, divide the shielding around the covering, naked earth line, around the package shielding layer, weave total shield layer and sheath, four to being divided the shielding around the even horizontal distribution of signal line sinle silk of covering parcel around the signal ground wire sinle silk, the insulating layer adopts polytetrafluoroethylene area to add polyimide tape to mix around the package structure, it is taking the lid rate 50% to 51% around the package, ensure that insulating concentricity is 95% to 97%, can reduce the return loss of product effectively, polytetrafluoroethylene area adds polyimide tape and mixes the package structure of burning out and can guarantee to use under 350 ℃ of environment around the wire, satisfy military components and parts high temperature resistant-60 to +180 ℃ requirement. The packing has the aramid fiber rope, can effectual improvement net twine data transmission's stability, helps better adaptation aerospace.

Drawings

Fig. 1 is a schematic view of the internal structure of the cable of the present invention.

Reference numerals: 1. a signal line group; 11. a signal wire core; 12. dividing a shielding layer; 2. a signal ground wire core; 3. a bare ground wire; 4. an insulating layer; 5. wrapping a shielding layer; 51. aramid fiber ropes; 6. weaving a total shield; 7. a sheath.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, the aviation super-six types of network cables of this embodiment include a signal wire group 1, a signal ground wire core 2, a bare ground wire 3, an insulating layer 4, a wrapping shielding layer 5, a braided total shielding layer 6 and a sheath 7, where the signal ground wire core 2 is located at the center, the four groups of signal wire groups 1 are uniformly distributed around the signal ground wire core 2, the signal wire group 1 includes a signal wire core 11 and a sub-shielding layer 12 wrapped outside the signal wire core 11, the signal wire group 1 is twisted around the signal ground wire core 2 to form a cable core, the bare ground wire 3 is arranged outside the cable core, the wrapping shielding layer 5 is wrapped outside the cable core, and the braided total shielding layer 6 and the sheath 7 are sequentially wrapped outside the wrapping shielding layer 5; the insulating layer 4 is filled among the signal line group 1, the signal ground wire core 2 and the bare ground wire 3, the insulating layer 4 adopts a microporous polytetrafluoroethylene tape and polyimide tape mixed wrapping structure, the wrapping covering rate is 50% -51%, and the insulating concentricity is 95% -97%. Polytetrafluoroethylene area adds mixed fever of polyimide area and wraps the structure and possess characteristics such as low-loss, light in weight, external diameter are little, the compliance is good simultaneously, adopts imported Lucas to wrap equipment simultaneously, and control is lapped the lid rate around the package, ensures insulating concentricity to it is littleer to guarantee the product return loss.

The signal wire core 11, the signal ground wire core 2 and the bare ground wire 3 are made of silver-plated round copper stranded wires, the structure is 19/0.134mm, and the outer diameter is 0.64 mm. The copper wire has excellent conductivity and low price, is often used as a conductive conductor, and silver plating can enable the copper wire to have higher conductivity.

The outer diameter of the insulating layer 4 is 1.35 mm. The insulation requirements of the signal wire core, the signal ground wire core and the bare ground wire can be met, resources can be saved, and the purpose of avoiding too thick network cables can be achieved.

The cable core pitch length is no more than 16 times of the outer diameter of the strand, and the 11 colors of the signal wire core are as follows: white/blue, white/orange, white/green, white/red arrays.

The sub-shielding layer 12 is wrapped by a polyester aluminum plastic composite tape, and the wrapping overlapping rate is at least 50%.

The lapping shielding layer 5 is a copper strip lapping, and the lapping overlapping rate is 30% -50%.

The total woven shielding layer 6 is woven by adopting a polyester aluminum-plastic composite tape mixed silver-plated round copper wire, the lapping and covering rate of the polyester aluminum-plastic composite tape is at least 30%, and the weaving density of the silver-plated round copper wire is at least 85%.

The sheath 7 is extruded by fluorinated ethylene propylene, the thinnest point of the sheath is 0.28mm, and the maximum outer diameter of the sheath is 8.8 mm.

And aramid fiber ropes 51 are filled between the cable core and the wrapping shielding layer 5.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (9)

1. The aviation super-six-type network cable is characterized by comprising a signal wire group (1), a signal ground wire core (2), a bare ground wire (3), an insulating layer (4), a lapping shielding layer (5), a braided total shielding layer (6) and a sheath (7), the signal ground wire core (2) is positioned in the center, four groups of signal wire groups (1) are uniformly distributed around the signal ground wire core (2), the signal line group (1) comprises a signal line core (11) and a sub-shielding layer (12) wrapped outside the signal line core (11), the signal wire group (1) is stranded around the signal ground wire core (2) to form a cable core, the bare grounding wire (3) is arranged on the outer side of the cable core, the wrapping shielding layer (5) is wrapped on the outer side of the cable core, the braided total shielding layer (6) and the sheath (7) are sequentially wrapped on the outer side of the wrapping shielding layer (5); the insulation layer (4) is filled between the signal line group (1), the signal ground wire core (2) and the bare ground wire (3), the insulation layer (4) adopts a microporous polytetrafluoroethylene tape and polyimide tape mixed wrapping structure, the wrapping covering rate is 50% -51%, and the insulation concentricity is 95% -97%.

2. The aviation super-six types of network cables as claimed in claim 1, wherein the signal wire core (11), the signal ground wire core (2) and the bare ground wire (3) are silver-plated round copper stranded wires, and have a structure of 19/0.134mm and an outer diameter of 0.64 mm.

3. The aeronautical super six-category mesh wire according to claim 1, characterized in that the insulating layer (4) has an outer diameter of 1.35 mm.

4. The aviation super-six types of network cables as claimed in claim 1, wherein the pitch length of the cable core is not more than 16 times of the stranded outer diameter, and the color of the signal wire core (11) during cabling is as follows: white/blue, white/orange, white/green, white/red arrays.

5. The aviation super-six types of mesh wire according to claim 1, wherein the partial shielding layer (12) is wrapped by a polyester aluminum plastic composite tape, and the wrapping overlapping rate is at least 50%.

6. The aviation super-six types of net wires according to claim 1, wherein the lapping shielding layer (5) is a copper tape lapping, and the lapping overlapping rate is 30% -50%.

7. The aviation super-six types of net twines according to claim 1, wherein the woven total shielding layer (6) is woven by using polyester aluminum plastic composite tape mixed silver-plated round copper wires, the lapping and covering rate of the polyester aluminum plastic composite tape is at least 30%, and the weaving density of the silver-plated round copper wires is at least 85%.

8. The aeronautical super six-category mesh wire according to claim 1, wherein the sheath (7) is extruded by fluorinated ethylene propylene, and has a thinnest point thickness of 0.28mm and a maximum outer diameter of 8.8 mm.

9. The aviation super-six types of net cables as claimed in claim 1, wherein aramid ropes (51) are filled between the cable cores and the wrapping shielding layers (5).

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