CN222319771U - A lightweight, reliable, and high-strength data cable - Google Patents

Abstract

The utility model relates to a light transmission reliable high-strength data cable, wherein the cable core is composed of 4 1×0.15mm² light high-temperature data lines, 4 microporous filling cores and a high-strength filling core twisted cable; a PTFE microporous inner sheath, a polyimide aluminum composite film inner shielding layer, a silver-plated copper-clad aluminum alloy braided outer shielding layer and a PTFE raw tape sheath are arranged in sequence outside the cable core; this structural design ensures the tensile strength of the product while making the filling core more rounded in appearance, smaller in outer diameter, smaller in volume and lighter in weight.

Description

Light-duty reliable high strength data cable of transmission

Technical Field

The utility model relates to a light-weight and reliable-transmission high-strength data cable, belongs to the technical field of cables, is applied to control systems in the fields of aerospace, aviation, ships, vehicles and weaponry, and is a high-temperature data cable suitable for signal transmission.

Background

The existing common data cable in the current market is large in size and heavy in weight, and cannot meet the use conditions of users with the requirements of size and weight. The common data cable is generally in an extrusion structure, the shield is in a braiding structure, the sheath is in an extrusion structure, the insulation thickness of the product is determined by the structure, the size of an insulated wire core is larger, the outer diameter of the shield after braiding is larger, the weight is heavier, and the thickness of the sheath of the finished cable is thicker, the whole size is larger and the weight is larger. Under the use conditions of space limitation, such as aerospace, aviation, ships and the like, the common data cable often cannot meet the requirements.

The conventional common data cable has unstable structure, and the transmission performance of the cable has large fluctuation and cannot meet the use requirement. The common data cable is mainly filled in a single mode, the cable core structure is not stable enough, and when the cable is bent or extruded, the overall dielectric constant of the cable core can be changed, so that the transmission performance of the cable is affected.

The existing common data cable has low tensile strength and cannot be generally used under the condition of pulling or tensile strength. When the common data cable is structurally designed, the pulling and tensile properties are not considered, and the part bearing the pulling force is not designed in the product structure, so that when the product is pulled by external force or has the tensile property requirement, the cable core, the shielding and the sheath of the cable can bear the pulling force directly, and the parts can break under the overlarge pulling force to cause the product to lose efficacy.

Disclosure of Invention

In view of the defects existing in the prior art, the utility model provides the data cable which is small in size, light in weight, stable in transmission and excellent in tensile property.

The technical scheme is that the light-weight transmission reliable high-strength data cable comprises 41 multiplied by 0.15mm < 2 > light-weight high-temperature data wires, 4 micropore filling cores and a high-strength filling core twisted cable, wherein a PTFE micropore inner protective layer, a polyimide aluminum composite film inner shielding layer, a silver-plated copper-clad aluminum alloy woven outer shielding layer and a PTFE raw material belt sheath are sequentially arranged outside the cable core.

The composite silver-plated copper wire core has the advantages that the silver-plated copper wire core is adopted by the conductor, the conductor is compressed, the conductor has smaller size and relatively lighter weight on the basis of ensuring the electrical performance of the conductor, the structure is more stable, the outer diameter consistency is higher, the insulation layer adopts a combined structure of an inner insulation layer of a wrapping PTFE film and an outer insulation layer of a wrapping FEP/PI/FEP composite film, the insulation outer diameter of a product is smaller, the size is lighter, the filling core adopts a PTFE micropore filling core, the weight of the product can be effectively reduced by adopting a combined structure of the inner shielding layer of the wrapping polyimide aluminum composite film and the outer shielding layer of the braided silver-plated copper-clad aluminum alloy, and the product is smaller in outer diameter and lighter in weight by adopting the design.

According to the utility model, during the twisting, a mode of combining center filling and multi-point filling is adopted, a high-strength filling core is additionally arranged in the center of four 1X 0.15mm < 2 > light high-temperature data wires, the tensile strength born by the high-strength filling core is fully considered during structural design, the inner core is formed by twisting high-strength aramid fiber wires, PTFE raw material belts are wound outside the inner core, microporous filling cores are filled between adjacent gaps of the 1X 0.15mm < 2 > light high-temperature data wires, and the selected materials and the structural design ensure the tensile strength of products, and simultaneously ensure that the appearance of the filling cores is more round, the outer diameter is smaller, the volume is smaller, the weight is lighter, the structure of the cable core is more stable, the overall dielectric constant is more uniform, and the stability and consistency of the transmission performance of the cable are ensured.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a 1X 0.15mm ² lightweight high temperature data line according to the present utility model;

fig. 3 is a schematic structural view of the high strength filler core of the present utility model.

In the figure, 1 multiplied by 0.15mm2 light high-temperature data wire, 1-1, conductor, 1-2, PTFE film inner insulating layer, 1-3, FEP/PI/FEP composite film outer insulating layer, 2, high-strength filling core, 2-1, high-strength aramid fiber wire, 2-2, PTFE raw material belt, 3, micropore filling core, 4, PTFE micropore inner protective layer, 5, polyimide aluminum composite film inner shielding layer, 6, silver plating copper clad aluminum alloy woven outer shielding layer, 7, PTFE raw material belt sheath.

Detailed Description

As shown in figures 1 to 3, the light transmission reliable high-strength data cable comprises a 1X 0.15mm ² light high-temperature data wire 1, a high-strength filling core 2, a micropore filling core 3, a PTFE micropore inner protective layer 4, a polyimide aluminum composite film inner shielding layer 5, a silver-plated copper-clad aluminum alloy woven outer shielding layer 6 and a PTFE raw material tape sheath 7, wherein the high-strength filling core 2 is arranged at the center of the 4 1X 0.15mm2 light high-temperature data wire 1, a micropore filling core 3 is respectively arranged between every 2 adjacent 1X 0.15mm2 light high-temperature data wires 1 to form a cable core, the PTFE micropore inner protective layer 4 is wound outside the cable core, the polyimide aluminum composite film inner shielding layer 5 is wound outside the PTFE micropore inner protective layer 4, the silver-plated copper-clad aluminum alloy outer shielding layer 6 is woven outside the polyimide aluminum composite film inner shielding layer 5, and the PTFE raw material tape sheath 7 is wound outside the copper-clad aluminum alloy outer shielding layer 6.

A lightweight high-temperature data line 1 with the thickness of 1 multiplied by 0.15mm ² is formed by sequentially wrapping a PTFE film inner insulating layer 1-2 and an FEP/PI/FEP composite film outer insulating layer 1-3 outside a conductor 1-1 formed by a plurality of silver-plated copper conductive wire cores.

The high-strength filling core 2 is formed by wrapping PTFE raw material tape 2-2 outside high-strength aramid fiber filaments 2-1.

The utility model fully considers the stability and consistency of the transmission performance of the cable when the conductor 1-1 is manufactured by adopting structural design, material selection and manufacturing, the structure of the compressed conductor 1-1 is more stable and the consistency of the outer diameter is higher after a plurality of silver-plated copper conductive wire cores are compressed by a die, and when the inner insulating layer and the outer insulating layer are wrapped, a guide wheel and a clamping roller are additionally arranged on a wrapping machine, so that the wrapping angle is stable when the wrapping machine is wrapped, the wrapping point does not deviate, and meanwhile, the insulation outer diameter of the cable is more stable and the consistency is higher after the product passes through a conical alloy die after the wrapping. When the cable is twisted, a mode of combining center filling and multi-point filling is adopted, a high-strength filling core is filled in the center of the cable, and micropore filling cores are filled among gaps of all light high-temperature data lines.

Claims (4)

1. A light-weight and reliable-transmission high-strength data cable is characterized in that 4 1X 0.15mm2 light-weight high-temperature data wires (1), 4 micropore filling cores (3) and a high-strength filling core (2) are stranded to form a cable core, and a PTFE micropore inner protective layer (4), a polyimide aluminum composite film inner shielding layer (5), a silver-plated copper-clad aluminum alloy woven outer shielding layer (6) and a PTFE raw material belt sheath (7) are sequentially arranged outside the cable core.

2. The light-weight reliable high-strength data cable according to claim 1, wherein the cable core is structured by arranging high-strength filling cores (2) at the centers of 4 1X 0.15mm2 light-weight high-temperature data wires (1), and arranging a micropore filling core (3) between the 4 1X 0.15mm2 light-weight high-temperature data wires (1).

3. The light-weight reliable high-strength data cable of claim 1, wherein the light-weight high-temperature data cable (1) with the thickness of 1X 0.15mm ² is formed by sequentially wrapping a PTFE film inner insulating layer (1-2) and an FEP/PI/FEP composite film outer insulating layer (1-3) outside a conductor (1-1) formed by a plurality of silver-plated copper conductive wire cores.

4. A lightweight reliable high strength data cable as set forth in claim 1 wherein the high strength filler core (2) is comprised of a high strength aramid filament (2-1) wrapped with PTFE raw tape (2-2).