High safety power cable with heat dissipation composite structure

Abstract

This invention discloses a high-safety power cable with a heat dissipation composite structure, relating to the field of power cable technology. It includes circumferentially distributed conductors, each covered with an insulating sheath. A stress buffering mechanism, an inner core rapid heat dissipation mechanism, and a bending extension mechanism are arranged between the conductors. The stress buffering mechanism buffers and disperses external forces generated during transportation and operation, absorbing vibration, compression, and bending stress during cable operation, preventing stress concentration damage to the conductors and insulation. The inner core rapid heat dissipation mechanism quickly conducts heat generated by the conductors radially and diffuses it axially, preventing localized overheating, breaking up internal heat accumulation, ensuring uniform heat distribution, suppressing hot spot formation, and reducing the risk of fire. The bending extension mechanism, with its corrugated structure consisting of alternating large-diameter bending rings, small-diameter bending rings, and equal-diameter connecting rings, provides sufficient tensile allowance to the outer side of the power cable, preventing the outer sheath from tearing and exposing the internal structure.

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