High-shielding audio and video information combined cable

Abstract

The invention discloses a high-shielding audio and video information combined cable which aims to provide an audio and video information combined cable with favorable shielding effect, convenient line distribution, easy maintenance and low cost. The high-shielding audio and video information combined cable comprises a high-shielding video line (1) and a high-shielding audio network line (2), wherein the high-shielding video line (1) sequentially comprises an inner conductor (11), a foaming insulation layer (12), a shielding outer conductor (13) and a video line jacket (14) from inner part to outer part; the shielding outer conductor (13) is an aluminum plastic composite belt; the high-shielding audio network line (2) comprises a plurality of audio network twisted pair lines (21); the periphery of the audio network twisted pair lines (21) is provided with an audio line shielding layer (22); the periphery of the audio line shielding layer (22) is provided with an audio line jacket (23); a connecting belt (3) is arranged between the video line jacket (14) and the audio line jacket (23); and the video line jacket (14), the audio line jacket (23) and the connecting belt (3) are integrated into a whole. The invention is applied to the field of wired transmission network communication.

Description

technical field [0001] The invention relates to a cable, in particular to a high shielding audio and video information combination cable. Background technique [0002] The renewal and progress of science and technology have promoted the rapid development of society, and electronic information technology has also shown a rapid development momentum. With the development of the information industry, the transmission of various information, signals, and data is becoming more and more complicated. At this stage, cable transmission is the main way of various information transmission. As an important part of information transmission, cables Carrier, in order to ensure high-quality transmission of various types of information, the requirements for cables are getting higher and higher; as we all know, information will be attenuated during transmission through cables and will be interfered by other external signals, so transmission cables are required The wire has a shielding functio...

AI Technical Summary

Problems solved by technology

With the development of the information industry, the transmission of various information, signals, and data is becoming more and more complicated. At this stage, cable transmission is the main way of various information transmission. As an important part of information transmission, cables Carrier, in order to ensure high-quality transmission of various types of information, the requirements for cables are getting higher and higher; as we all know, information will be attenuated during transmission through cables and will be interfered by other external signals, so transmission cables are required The wire has a shielding function to ensure the high-quality transmission of information. The outer conductor of the cable is usually used as a shielding layer to play a shielding role. However, due to technical defects in the existing transmission cables, the shielding effect is not ideal, such as figure 1 Shown is the existing coaxial cable, its outer conductor is composed of aluminum-plastic composite film 131 plus metal wire braid 132, the shielded outer conductor of this structure has the following defects when performing high-frequency transmission: the aluminum-plastic composite film described in a The thickness of the aluminum base of the film 131 is thin, generally only 7-9 μm, and the diameter of the metal wire of the metal wire braid layer 132 is generally only 0.12 mm, and the weaving density is only 42%, so the shielding attenuation is small in high-frequency transmission, and it is resistant to external electromagnetic waves. Low interference ability, easy to cause unclear images or graphics, sound distortion and other adverse phenomena

When external interference occurs, the transmission signal will also leak out, resulting in increased signal attenuation and affecting the quality of high-frequency signal transmission.

[0004] On the other hand, the existing various transmission cables are transmission cables with a single function, a single structure, and independent separation from each other. Therefore, the existing various transmission cables cannot be uniformly wired in practical applications, and various information transmission Cables appear intricate and difficult to identify in the wiring, which is not conducive to management, maintenance and repair, and when producing cables, the production process cannot be effectively optimized and the process flow can be shortened. Therefore, the production cost is relatively high

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