High temperature resistant thermal insulation composite cable jacket

By using a multi-layer composite cable sheath structure, and utilizing the inert gas in the gas storage chamber and sealing components, the problem of easy damage at the bending point of the composite cable is solved, achieving efficient energy absorption and sealing protection, and improving the cable's compressive strength and safety.

CN122371006APending Publication Date: 2026-07-10ZHENJIANG HUAKE COMM EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHENJIANG HUAKE COMM EQUIP
Filing Date
2026-04-08
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

The bends of composite cables are easily damaged under external stress, leading to damage to the cable body and failure of sealing, which affects operational safety and lifespan.

Method used

The cable uses a multi-layer composite cable sheath structure, including a cross-linked polyethylene outer layer, an air storage chamber, and a cross-linked polyethylene inner layer. Inert gas is injected into the air storage chamber. When the external pressure or temperature changes, the gas or expanding adhesive is released through the sealing and releasing components to absorb energy or change the sealing state and protect the cable.

Benefits of technology

It effectively absorbs external impact energy, prevents pressure from being directly transmitted to the cable, maintains sealing, and improves the cable's pressure resistance and safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122371006A_ABST
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Abstract

The application provides a high-temperature-resistant heat-insulating composite cable sleeve and relates to the technical field of cable accessories. The high-temperature-resistant heat-insulating composite cable sleeve comprises a first sleeve wrapped around the outer circumferential surface of a straight pipe section of a composite cable and a second sleeve. The second sleeve comprises a cross-linked polyethylene outer layer, a plurality of gas storage cavities and a cross-linked polyethylene inner layer. The cross-linked polyethylene inner layer is wrapped around the outer circumferential surface of a bending section of the composite cable. The cross-linked polyethylene outer layer is wrapped around the outer circumferential surface of the cross-linked polyethylene inner layer. The plurality of gas storage cavities are equidistantly arranged in the cross-linked polyethylene outer layer along the extension direction of the composite cable. The gas storage cavities are filled with gas. When the application is subjected to pressure, the volume of the gas storage cavities is correspondingly reduced, and the gas is compressed, so that the external mechanical energy is converted into the internal energy of the gas. This process is equivalent to an efficient air cushion buffer layer, greatly absorbs the impact energy and effectively avoids the direct transmission of the hard pressure to the cross-linked polyethylene inner layer and the internal composite cable.
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