Overhead insulation data transmission line and processing and forming method

Abstract

The invention discloses an overhead insulation data transmission line, which comprises a conductor, an insulation support and a coating layer, wherein the insulation support is arranged outside the conductor and comprises an insulation outer frame and a plurality of supporting strips arranged in the insulation outer frame, the outer ends of the supporting strips are connected with the insulation outer frame, and the inner ends of the supporting strips abut against the conductor and fix the position of the conductor, and thus, an overhead insulation structure is formed between the insulation outer frame and the conductor; and the coating layer is coated outside the insulation outer frame of the insulation structure. The vast majority of areas except the conductor are not in contact with the insulation structure, so that the loss generated by signal propagation in a medium can be greatly reduced; a belting process is omitted, and the inherent attenuation resonance phenomenon caused by the wrapping pitch of the belting is completely eradicated; the number and the structure of the insulation supports and the conductors can be flexibly controlled according to actual requirements; according to the processing and forming method, the insulation support sub-plates are prefabricated and formed, the method can adapt to conductors with various section shapes, the structure is stable, and processing is convenient.

Description

technical field [0001] The invention relates to the technical field of communication wires and cables, in particular to an overhead insulated data transmission line and a processing and forming method thereof. Background technique [0002] As the era of big data gradually enters people's lives, server transmission traffic is increasing explosively, which puts forward higher requirements for data transmission systems, especially data transmission lines, and increasing transmission frequency and reducing transmission loss are data transmission systems. The two most important drivers of the leap forward. [0003] At present, the data transmission line includes a conductor and an insulating layer covering the conductor. The insulating layer uses an insulating material with a low dielectric constant and a loss tangent to reduce the loss of the insulating medium, such as using a foam material or micropores. material, but this structure has a limited reduction in transmission loss...

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Problems solved by technology

[0003] At present, the data transmission line includes a conductor and an insulating layer covering the conductor. The insulating layer uses an insulating material with a low dielectric constant and a loss tangent to reduce the loss of the insulating medium, such as using a foam material or micropores. material, but this structure has a limited reduction in transmission loss, and the mechanical strength and stability of the material will be greatly reduced after foaming

[0004] Chinese patent application CN104319027A discloses a lotus-shaped extrusion method of high-temperature ultra-fine wire foamed Teflon, which covers a layer of lotus-shaped foamed fluoroplastic insulator inside the conductor. The main purpose of the lotus-shaped foamed fluoroplastic insulator is Under the premise of achieving the same impedance, the diameter of the wire is made smaller, so as to meet the needs of subsequent electronic products. However, the conductor of this patent is still covered with an insulating layer. The insulating layer is the main medium for signal transmission. The signal is insulated. The loss caused by propagation in the layer medium is relatively large, and the mechanical strength and stability of the material will be greatly reduced after foaming

The polygonal polyethylene skeleton semi-air insulating layer of this patent can reduce the dielectric constant and enhance the insulation strength. However, the cross-section center of the polygonal polyethylene skeleton semi-air insulating layer of this patent is a tubular body, that is, outside the conductor Still all covered with a layer of insulating layer, the insulating layer is the main medium of signal transmission, the loss of signal propagation in the insulating layer medium is relatively large, in addition, the corrugated copper tube outer conductor is set on several raised ribs, compared with the traditional shielding layer Generally speaking, the cost of the outer conductor of the corrugated copper tube is high

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