一种高挠性阻燃层的电动车充电线缆

By incorporating support strips, heat insulation cores, thermally conductive fiber bundles, flame-retardant layers, and anti-aging layers into the charging cable design, the problems of poor torsional resistance and heat dissipation in charging pile cables are solved, achieving higher torsional resistance and longer service life.

CN224519540UActive Publication Date: 2026-07-17HUAIAN HONGYANGXU ELECTRONICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUAIAN HONGYANGXU ELECTRONICS CO LTD
Filing Date
2025-06-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing charging pile cables have poor torsional resistance and are easily damaged after prolonged bending and twisting. They also have poor heat dissipation, which affects their service life, especially during fast charging when heat accumulates and causes aging.

Method used

Support bars and heat insulation cores enhance the tensile strength of the structure, thermally conductive fiber bundles accelerate heat dissipation, a flame-retardant layer blocks flame propagation, a pressure-resistant layer provides structural support, and an outer sheath with an anti-aging layer resists environmental factors and extends service life.

Benefits of technology

The charging cable has improved heat dissipation and flame retardancy, enhanced torsional resistance, and extended service life, making it suitable for vehicle environments where it may be run over.

✦ Generated by Eureka AI based on patent content.

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Abstract

本实用新型公开了一种高挠性阻燃层的电动车充电线缆,包括由内而外依次分布的线芯、填充层、屏蔽层和外护套,所述线芯设置有多组,每组线芯包括有导体芯和绝缘层,多组线芯围绕支撑条周向排列分布,且支撑条内填充有隔热芯,所述填充层内贯穿分布有若干径向导热纤维束,所述屏蔽层和外护套之间由内向外还依次分布有阻燃层和抗压层,所述外护套外设有抗老化层。本实用新型通过设置支撑条和隔热芯不仅增强线缆的支撑抗拉能力,还可以减少线芯散发的热量向线缆内部中心积聚,热量利用导热纤维束加速热量向线缆外发散,从而提高线缆的散热效果,同时设置的阻燃层形成阻燃屏障,显著提升线缆的整体阻燃等级。
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Claims

1. A high-flexibility and flame-retardant charging cable for electric vehicles, comprising a core (1), a filling layer (2), a shielding layer (3) and an outer sheath (4) arranged in sequence from inside to outside, characterized in that: The core (1) is provided in multiple groups. Each core (1) includes a conductor core (11) and an insulation layer (12). The multiple cores (1) are arranged circumferentially around the support strip (5). The support strip (5) is filled with a heat insulation core (6). Several radial heat-conducting fiber bundles (21) are distributed through the filling layer (2). A flame-retardant layer (7) and a pressure-resistant layer (8) are distributed sequentially from the inside to the outside between the shielding layer (3) and the outer sheath (4). An anti-aging layer (9) is provided on the outside of the outer sheath (4).

2. A high flexible flame retardant layer of electric vehicle charging cable as claimed in claim 1, wherein: The conductor core (11) is made of multiple copper wires twisted together.

3. A high flexible flame retardant layer electric vehicle charging cable as claimed in claim 1, wherein: The thermally conductive fiber bundles (21) are evenly distributed circumferentially along the filling layer (2).

4. A high flexible flame retardant layer of electric vehicle charging cable as claimed in claim 1, wherein: The outer sheath (4) has continuous threaded grooves (41) on its surface.

5. A high flexible flame retardant layer of electric vehicle charging cable as claimed in claim 1, wherein: The surface of the support bar (5) near the core (1) adopts an arc-shaped structure that fits into the surface of the insulation layer (12).

6. A high flexible flame retardant layer of electric vehicle charging cable as claimed in claim 1, wherein: The anti-aging layer (9) contains reflective particles (91).