Separately-shielded and symmetrically-stranded cable resistant to high temperature and with low noise and fabrication method thereof

Abstract

The invention provides a sub-shielded symmetrical twisted high temperature resistant low noise cable, comprising: at least one pair of conductors, the conductors are covered in a fluoroplastic sheath; the outside of the conductors is covered with a first The semiconductor layer, the first fluoroplastic insulating layer, the second semiconductor layer and the sub-shielding layer; the gap between the sub-shielding layer and the fluoroplastic sheath is filled with a gelatinous substance. The manufacturing method of the present invention comprises the following steps: (i) drawing copper monofilament; (ii) copper monofilament annealing; (iii) stranding soft copper conductor; (iv) making core body; (v) making twisted pair core Body; (ⅵ) cabled. The first fluoroplastic insulating layer provided in the present invention realizes the equipotential between conductors, and the sub-shielding layer shields the conductors, which improves the anti-interference ability of the cable. The conductor adopts a symmetrical twisted connection structure, so that the cable Good pressure resistance and strong explosion-proof ability.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a separate shielding symmetrical twisted high temperature resistant low noise cable applied to electronic equipment and a manufacturing method thereof. Background technique [0002] Whether it is in the industrial field, or in the medical field and service industry, in order to meet the needs of the rapid development of these industries, electronic equipment will be involved in these fields. Composed of components, equipment that uses electronic technology software to play a role, also includes electronic computers and robots controlled by electronic computers, numerical control, program control systems, computers, air conditioners, refrigerators, washing machines, microwave ovens, printers, fax machines, all-in-one machines, etc. Only by applying these electronic devices to the above-mentioned fields can the needs of the rapid development of the electronic age be met. The applic...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a sub-shielded symmetrically stranded high-temperature-resistant low-noise cable and its manufacturing method to solve the problem in the prior art that ordinary communication cables are separated due to the friction of the medium molecules inside the cable. Or when affected by external force, the capacitance of the cable changes suddenly to cause separation of charges, or when the dielectric in the cable is affected by external force, it is prone to piezoelectric effect, resulting in separation of charges, or when there is friction between the conductor and the medium in the cable. Separation of charge, that is to say, when the contact between the conductor and the insulator is broken, there will be a separation of charge, which will cause noise in the cable, and the temperature adaptability of the cable is poor, and it is easy to be damaged.

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