CN213150382U

CN213150382U - Soft light tensile signal transmission cable

Info

Publication number: CN213150382U
Application number: CN202022001772.0U
Authority: CN
Inventors: 张立; 姚智博; 齐俊东; 刘秋实; 韦玮; 魏东博; 曹亚飞; 邵立双
Original assignee: TIANJIN 609 CABLE CO Ltd
Current assignee: TIANJIN 609 CABLE CO Ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-05-07
Anticipated expiration: 2030-09-14

Abstract

A soft light tensile signal transmission cable comprises a signal line unit, a power line unit, a ground wire, a microporous polytetrafluoroethylene film inner protective layer, a silver-plated aramid fiber shielding layer and a polytetrafluoroethylene raw material belt sheath; the signal wire unit is formed by sequentially wrapping a layer of microporous polytetrafluoroethylene film insulating layer outside a silver-plated copper-clad aluminum alloy conductor I to form signal single wires, and wrapping a layer of polyester aluminum composite film shielding layer outside two signal single wires. The power line unit is formed by wrapping a polytetrafluoroethylene raw material belt insulating layer outside a silver-plated copper-clad aluminum alloy conductor II. Two groups of signal wire units, two power wire units and a ground wire are twisted, and a microporous polytetrafluoroethylene film inner protective layer, a silver-plated aramid fiber shielding layer and a polytetrafluoroethylene raw material belt sheath are sequentially arranged outside the signal wire units, the two power wire units and the ground wire. The utility model is characterized in that: the flexibility of the cable is improved, the tensile strength of the cable is improved, the overall weight of the cable is reduced by about 55%, and attenuation is reduced, so that effective signal transmission is guaranteed.

Description

Soft light tensile signal transmission cable

Technical Field

The utility model relates to a soft light-duty tensile signal transmission cable is applied to the circuit connection between the instrument in the aerospace communication field, is a signal transmission cable that small, light in weight, compliance are good, the tensile is dragged, transmission performance is superior.

Background

At present, a signal transmission cable for related equipment in the aerospace field has the disadvantages of large weight, poor flexibility, small tensile strength and large attenuation, and a signal transmission cable with the advantages of small weight, good flexibility, large tensile strength and small attenuation needs to be developed.

Disclosure of Invention

In view of the situation that prior art exists, the utility model provides a soft light-duty tensile signal transmission cable has improved the compliance of cable, has improved the tensile strength of cable, has alleviateed about 55% of the whole weight of cable, thereby and reduces the decay and guarantee the effective transmission of signal.

The technical scheme of the utility model is that: the utility model provides a soft light-duty tensile signal transmission cable which characterized in that: the device comprises a signal wire unit, a power wire unit, a ground wire, a microporous polytetrafluoroethylene film inner protective layer, a silver-plated aramid fiber shielding layer and a polytetrafluoroethylene raw material belt sheath;

the signal wire unit is formed by sequentially wrapping a layer of microporous polytetrafluoroethylene film insulating layer outside a silver-plated copper-clad aluminum alloy conductor I to form signal single wires, and wrapping a layer of polyester aluminum composite film shielding layer outside two signal single wires.

The power line unit is formed by wrapping a polytetrafluoroethylene raw material belt insulating layer outside a silver-plated copper-clad aluminum alloy conductor II.

Two groups of signal wire units, two power wire units and a ground wire are twisted, and a microporous polytetrafluoroethylene film inner protective layer, a silver-plated aramid fiber shielding layer and a polytetrafluoroethylene raw material belt sheath are sequentially arranged outside the signal wire units, the two power wire units and the ground wire.

The utility model is characterized in that:

the signal wire inner conductor is a silver-plated copper-clad aluminum alloy wire core, the material is small in resistivity, small in specific gravity, easy to weld and large in tensile strength, the resistivity difference is small compared with that of a silver-plated copper wire core, the good transmission efficiency of the cable is guaranteed, meanwhile, the weight of the wire core is reduced by about 60% compared with that of the silver-plated copper wire core, and the tensile strength of the cable is improved. The signal line insulating layer is a wrapping type insulating layer, and the wrapped insulating material is a microporous polytetrafluoroethylene film with low density, low dielectric constant and high flexibility, so that the cable is guaranteed to have high flexibility, low composite dielectric constant and high signal transmission efficiency, and the weight of the cable is reduced by about 60% compared with that of a solid polytetrafluoroethylene insulating layer. The signal line sub-shielding layer adopts the polyester aluminum composite film, which not only can improve the stability of the signal line structure, but also can avoid the interference of the power line to the signal line transmission signal. The cable shielding layer adopts silver-plated aramid fiber, and compared with the traditional silver-plated copper wire shielding layer, the weight is reduced by about 75%, and the tensile property is improved, so that the cable can bear larger tensile force. The sheath adopts polytetrafluoroethylene raw material area, and this material is very soft and possesses good electrical property and environmental performance, and the weight reduction is about 22% compared with traditional polytetrafluoroethylene lathe work area.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of the signal line unit of the present invention;

fig. 3 is a schematic diagram of the structure of the power line unit of the present invention.

Detailed Description

As shown in fig. 1, 2 and 3, the flexible light tensile signal transmission cable comprises a signal line unit 1, a power line unit 2, a ground line 3, a microporous polytetrafluoroethylene film inner protective layer 4, a silver-plated aramid fiber shielding layer 5 and a polytetrafluoroethylene raw material tape sheath 6.

The signal wire unit 1 is formed by sequentially wrapping a layer of microporous polytetrafluoroethylene film insulating layer 1-2 outside a silver-plated copper-clad aluminum alloy conductor I1-1 to form signal single wires, and wrapping a layer of polyester aluminum composite film sub-shielding layer 1-3 outside two signal single wires.

The power line unit 2 is formed by wrapping a polytetrafluoroethylene raw material tape insulating layer 2-2 outside a silver-plated copper-clad aluminum alloy conductor II 2-1.

Two groups of signal wire units 1, two power wire units 2 and a ground wire 3 are twisted, and a microporous polytetrafluoroethylene film inner protective layer 4, a silver-plated aramid fiber shielding layer 5 and a polytetrafluoroethylene raw material belt sheath 6 are sequentially arranged outside the signal wire units.

In order to ensure the utilization efficiency of the conductor, reduce the weight of the cable and improve the tensile strength of the cable, the signal wire adopts a silver-plated copper-clad aluminum alloy conductor. In order to reduce signal transmission attenuation, improve the flexibility of the cable and reduce the weight of the cable, the signal wire adopts a microporous polytetrafluoroethylene film insulating layer. In order to avoid the influence of the power line on the signal transmission of the signal line, the signal line is shielded separately. In order to ensure the power transmission capability, reduce the weight of the cable and improve the tensile strength of the cable, the power line adopts a silver-plated copper-clad aluminum alloy conductor. In order to ensure good insulating property and improve the flexibility of the cable, a polytetrafluoroethylene raw material belt insulating layer is adopted for the power line. In order to stabilize the cable structure and avoid the abrasion of the shielding layer to the signal line and the power line, the microporous polytetrafluoroethylene film inner protective layer is adopted. In order to ensure effective signal transmission, reduce the weight of the cable and increase the bearable tension of the cable, a silver-plated aramid fiber shielding layer is adopted. In order to ensure good environmental performance of the cable and improve the flexibility of the cable, a polytetrafluoroethylene raw material belt sheath is adopted.

Claims

1. The utility model provides a soft light-duty tensile signal transmission cable which characterized in that: the device comprises a signal wire unit (1), a power wire unit (2), a ground wire (3), a microporous polytetrafluoroethylene film inner protective layer (4), a silver-plated aramid fiber shielding layer (5) and a polytetrafluoroethylene raw material tape sheath (6);

the signal wire unit (1) is formed by sequentially wrapping a microporous polytetrafluoroethylene film insulating layer (1-2) outside a silver-plated copper-clad aluminum alloy conductor I (1-1) to form signal single wires, and wrapping a polyester aluminum composite film shielding layer (1-3) outside two signal single wires;

the power line unit (2) is formed by wrapping a polytetrafluoroethylene raw material belt insulating layer (2-2) outside a silver-plated copper-clad aluminum alloy conductor II (2-1);

two groups of signal wire units (1), two power wire units (2) and a ground wire (3) are twisted, and a microporous polytetrafluoroethylene film inner protective layer (4), a silver-plated aramid fiber shielding layer (5) and a polytetrafluoroethylene raw material belt sheath (6) are sequentially arranged outside the signal wire units.