High-voltage cable with aluminum alloy conductor for electric vehicle

Abstract

The invention belongs to the technical field of wires and cables and relates to a high-voltage cable with an aluminum alloy conductor for an electric vehicle. The high-voltage cable comprises a conductor, a wrapping belt arranged outside the conductor, an insulation layer arranged outside the wrapping belt, a single-sided aluminum foil layer arranged outside the insulation layer, a shielding layer arranged outside the single-sided aluminum foil layer and a sheath layer arranged outside the shielding layer, wherein the insulation layer and the sheath layer can adopt environment-friendly flame-retardant irradiation cross-linked polyolefine or TPE (thermoplastic elastomer) or TPU (thermoplastic polyurethane) at the temperature of 125 DEG C as a material. The high-voltage cable is characterized in that the conductor is formed by stranding a plurality of aluminum alloy wires, the wrapping belt is constituted by an inner layer belt and an outer layer belt positioned outside the inner layer belt, and the material of the outer layer belt is the same with the material of the inner layer belt. The high-voltage cable provided by the invention has the beneficial effects that the high-voltage cable is softer, easier to bend, easier to construct, heavier, lighter, lower in cost, more resistant to high voltage and high current, resistant to high temperature, capable of preventing electric interference, better in flame retardance, better in anti-bending performance and safer to use.

Description

technical field [0001] The invention belongs to the technical field of electric vehicles and cables, and in particular relates to a high-voltage cable for electric vehicles with an aluminum alloy conductor, especially to a cable using an aluminum alloy conductor. Background technique [0002] The high-voltage connection cable for automobile interior is a kind of power supply connection line, which is mainly used for high-voltage transmission inside the vehicle. Flexible cables for communication power supply not only require good flexibility to facilitate laying in narrow spaces or similar situations, but also require ideal flame retardancy to meet higher fire protection requirements. [0003] The company's application number is: 2014104424205 and the name is: "A high-voltage connection cable for electric vehicles with super soft aluminum conductor and its production method", the application number is: 2014104424313 and the name is: "With super soft aluminum conductor High-v...

AI Technical Summary

Problems solved by technology

[0006] Although the flexible cables for communication power supplies in the prior art have corresponding technical effects, they have the following common defects: (1) Since they use twisted thin copper wires as conductors, their softness cannot meet the desired requirements.

And due to the poor softness, the bending radius is limited, so when laying in a narrow space, obstructed by immovable objects or even corners, it is easy to affect the construction speed, especially in places with small spaces such as vehicles; (2) Because copper is generally used as the conductor of flexible cables under technical prejudice, there is not only blindness in the rational use of raw materials, but also the manufacturing cost of flexible cables is high; third, due to the high density of copper, the weight of cables is relatively high. Therefore, not only the cost of logistics transportation and warehousing is high, but also the labor intensity of the construction personnel during the laying process is high, and the labor cost is high

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