A composite control cable

Abstract

The invention discloses a composite control cable, which comprises a first cable core, a second cable core and a third cable core, and each cable core is equipped with a fireproof copper tube, and the inner diameter of the fireproof copper tube is larger than The outer diameter of each cable core leaves a gap between the fireproof copper tube and the corresponding cable core, and a shielding copper sheet is installed in the gap, and the vertical section of the shielding copper sheet is a circular sinusoidal shape The structure is connected end to end to form an overall closed structure, and the cable core is correspondingly arranged in the closed space formed by the shielding copper sheet. The axial direction of the shielding copper sheet is set along with the extension of the fireproof copper pipe, and the position of the inner apex of the shielding copper sheet is corresponding Press on the cable core. In the present invention, three cable cores are provided, and fireproof copper tubes are arranged on the outside of the three cable cores. The fireproof copper tube itself has good fireproof performance, and also has a shielding effect, which can increase the shielding effect while increasing the fireproof function.

Description

technical field [0001] The invention relates to the technical field of cable equipment, in particular to a composite control cable. Background technique [0002] In the prior art, composite cables are composed of a variety of different types of cable cores, so this type of cable has different types of functions, usually including control cable cores, power cable cores, communication cable cores, and optical fiber cable cores. and so on, so it has the functions of power transmission, information signal transmission and control signal transmission; and the most widespread problem of this type of composite cable core is the problem of internal signal fluctuation, and the electromagnetic wave between the conductors in the cable core fluctuates. Interference will seriously affect the transmission of information and data. [0003] In the prior art, shielding layers are usually arranged outside the cable cores to reduce the signal interference between the cable cores. Now, the shi...

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Problems solved by technology

[0005] However, the above-mentioned structures are usually arranged as a entangled mesh structure, and the shielding effect of the signal components is not good. In addition, the composite cable in the prior art not only needs a better shielding effect, but also needs to have tensile and bending resistance. Folding and anti-rolling functions; the conforming cables in the prior art are mostly equipped with a mesh shielding structure inside, so after rolling and stretching, the inner mesh shielding layer will be deformed accordingly, and the shielding effect will also be reduced. will be heavily discounted

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