A cable and signal transmission system

Abstract

The invention relates to a cable and a signal transmission system and belongs to the wire and cable field. The cable includes a cable body, a first conductor and second conductors, the conduction direction of the first conductor being opposite to the conduction direction of the second conductors; the cable body includes a first insulating protective layer, a shielding layer and a second insulating protective layer which are distributed inside to outside; the first insulating protective layer has a first conductor cavity and a plurality of second conductor cavities; the axis line of the first conductor cavity is overlapped with the axis line of the first insulating protective layer; the plurality of second conductor cavities are evenly arranged at intervals along the circumferential direction of the first conductor cavity; the shielding layer is provided with a grounding column; the grounding column extends from the shielding layer towards one side where the second insulating protective layer is located, and penetrates the second insulating protective layer; a conical head protrudes out from one end of the grounding column, wherein the one end of the grounding column is far away from the shielding layer; the first conductor is arranged in the first conductor cavity; and one second conductor is arranged in each second conductor cavity. The signal transmission system comprises the above cable. The cable and the signal transmission system have the advantages of excellent shielding function, stable signals, little impact on surrounding electrical parts, high security, high stability and suitability for the high-speed railway and aerospace field.

Description

technical field [0001] The present invention relates to the field of wires and cables, in particular, to a cable and a signal transmission system. Background technique [0002] The shielding function of the cable itself directly affects the stability of the signal transmission function of the cable. If the shielding function is not good, the signal transmitted by the cable is easy to be disturbed, causing the signal to be distorted or even disordered, which will seriously affect the signal transmission. The existing general cable shielding function is poor and unstable, which directly affects the quality of cable signal transmission. [0003] During the signal transmission process, the cable will also generate electric and magnetic fields around itself, which will easily interfere with the surrounding electrical equipment and other cables and affect their normal operation. The existing general cables will generate strong magnetic fields and electric fields around them durin...

AI Technical Summary

Problems solved by technology

[0002] The shielding function of the cable itself directly affects the stability of the cable signal transmission function. If the shielding function is not good, it is easy to interfere with the signal transmitted by the cable and cause the signal to be distorted or even disordered, which will seriously affect the signal transmission.

The existing general cable shielding function is poor and unstable, which directly affects the quality of cable signal transmission

[0003] During the signal transmission process, the cable will also generate electric and magnetic fields around itself, which will easily interfere with the surrounding electrical equipment and other cables and affect its normal operation.

Existing general cables will generate strong magnetic and electric fields around them during transmission, which will have a greater adverse effect on the surrounding electrical equipment and other cables

Especially if a strong electric field is generated, it is easy to cause harm to the human body. For safety reasons, the existing cables need to be set at a certain safety distance, which will inevitably waste a lot of installation space and cause unnecessary waste.

[0004] High-speed railways and aerospace have high requirements for cables and cable systems, especially for anti-interference and stability. Most existing cables do not meet the above requirements

In the fields of high-speed railways and aerospace, if the anti-interference ability of the cable is not strong, or the cable itself interferes a lot with the surrounding electrical equipment, it will easily cause signal transmission distortion or signal disorder, and even cause the instrument to malfunction, which will directly threaten to the safety of public life and property

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