Anti-interference automatic take-up cable

Abstract

The invention discloses an anti-interference automatic take-up cable. The anti-interference automatic take-up cable comprises an inner core layer and an outer cladding layer, wherein the inner core layer comprises a shielding line unit, an insulation line unit and a ground wire, wherein the shielding line unit comprises an inner shielding sleeve and a plurality of wires, the plurality of wires arearranged in the inner shielding sleeve and are twisted, the insulation unit comprises a plurality of wires which are twisted, the outer cladding layer comprises a weaving layer and a sheath layer which sequentially wrap the inner core layer from inside to outside, and the thickness of one side of the sheath layer is larger than the thickness of the other side. By additionally arranging the innershielding sleeve outside the wire of the shielding line unit, the mutual interference and sound conduction between the shielding line unit and the insulation line unit can be reduced very well, so that a signal effect is better; and meanwhile, the thickness of the sheath layer in the outer cladding layer is not uniform, the bending stress and the torque stress generated by the cable can be uniformly borne onto the whole length of the cable, the concentration of the bending stress is reduced, the damage to a local part of the cable is prevented, and the service lifetime of the cable is substantially prolonged.

Description

technical field [0001] The invention relates to a power transmission device, in particular to an anti-interference automatic winding cable. Background technique [0002] With the rapid development of electronic communication technology, the requirements for spring telephone cables for various electronic communication systems are getting higher and higher. Not only must they have high elasticity, high wear resistance and softness, but they should also be miniaturized and lightweight. , Anti-interference characteristics. The currently used telephone cables have four cores insulated and extruded elastomeric sheaths; there are also two pairs of conductors twisted after insulation and then extruded elastomeric sheaths. The above two structures can meet the requirements of high elasticity and high wear resistance when the material is suitable, but they cannot resist the interference of external electromagnetic waves, and there is mutual interference between the two pairs. In add...

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Problems solved by technology

[0003] Aiming at the problems existing in the prior art, the present invention provides an anti-interference automatic winding cable, which solves the problem that the wires in the cable in the prior art cannot resist the interference of external electromagnetic waves, and there is mutual interference between the wires, as well as the bending stress and the bending stress of the cable. The technical problem that the torsional stress frequently crosses and affects the service life of the cable

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