Anti-breakage cable

Through multi-layer composite structure design, the problems of insufficient interface bonding strength of cable shielding layer and easy fatigue cracking of corrugated sheath are solved, realizing multiple protection performance of cable in complex environment, extending service life and improving stability.

CN224437241UActive Publication Date: 2026-06-30SICHUAN CHINA CABLE GRP CO LTD
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Patent Information

Application Number
CN202521601416.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-30
Publication Date
2026-06-30
Estimated Expiration
2035-07-30

AI Technical Summary

Technical Problem

Existing composite protective cables suffer from insufficient interfacial bonding strength of the shielding layer, easy fatigue cracking of the corrugated sheath, and excessively large overall radial dimensions, which limit the application effect of the cables in space-constrained scenarios.

Method used

It adopts a multi-layer composite structure design, including conductor, conductor insulation layer, conductor shielding layer, cabling filling layer, wrapping layer, inner sheath, waterproof layer, inner lining layer, armor layer, outer lining layer, corrugated buffer layer, fireproof and flame-retardant layer and outer sheath. Each layer is tightly connected by a specific connection method and combined with specific materials such as annealed copper wire, aluminum-magnesium alloy wire, superabsorbent resin, ceramic flame-retardant powder, etc., to achieve multiple protective functions.

Benefits of technology

It enables the cable to operate reliably for a long time under complex working conditions, and has multiple protective properties such as water resistance, fire resistance, and impact resistance, thus extending its service life and improving operational stability.

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Abstract

The utility model relates to the technical field of cables, in particular to a breakage-proof cable, which adopts a multi-layer composite protection structure and sequentially comprises a conductor, a conductor insulating layer, a conductor shielding layer, a cabling filling layer, a wrapping layer, an inner sheath, a waterproof layer, an inner lining layer, an armor layer, an outer lining layer, a corrugated buffer layer, a fireproof flame-retardant layer and an outer sheath from inside to outside. All the functional layers form a tightly-matched overall protection system through a specific connection mode, the conductor insulating layer ensures the electrical insulation performance, the conductor shielding layer achieves electromagnetic shielding and water-blocking protection, the corrugated buffering layer absorbs external impact through a special structure, and the fireproof flame-retardant layer forms a high-temperature protection barrier. According to the utility model, material selection and structural design of each layer are optimized, so that the cable has multiple protection functions of water resistance, fire resistance, impact resistance and the like while maintaining excellent conductive performance, and the reliability and the service life of the cable under complex working conditions are effectively improved and prolonged through the synergistic effect of the layers.
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