A kind of fast charging cable for electric vehicle and preparation method thereof

Abstract

A quick charging cable for an electric vehicle and a preparation method therefor resolve the technical problem of interference on charging control caused by generation of electromagnetic radiation during a quick charging process of a conventional charging cable for an electric vehicle. The charging cable comprises a power wire (1), a grounding wire (2), a signal transmission control wire (4), and an auxiliary power wire (3), which respectively comprise copper conductors (11, 21, 41, 31) and insulating layers (12, 22, 42, 32) wrapping the copper conductors (11, 21, 41, 31). The signal transmission control wire (4) is adjacent to the grounding wire (2). The signal transmission control wire (4) further comprises: a nylon rope (43) filled in the corresponding insulating layer (42), a successively-wound aluminum plastic composite belt layer (44), a weaving layer (45) wrapping the aluminum plastic composite belt layer (44), a conductive adhesive layer (46) coating the weaving layer (45), and an inner sheath (47) extruded onto the conductive adhesive layer (46). The charging cable further comprises: a PP rope (5) filled on a wire group consisting of the power wire (1), the grounding wire (2), the auxiliary power wire (3), and the signal transmission control wire (4), a successively-wrapped wrapping belt layer (6), and an outer sheath (7) tightly pressing against the wrapping belt layer (6). Electromagnetic radiation can be resisted during a quick charging process of an electric vehicle.

Description

technical field [0001] The invention relates to the technical field of power cables, in particular to an electric vehicle fast charging cable resistant to electromagnetic radiation and a preparation method thereof. Background technique [0002] At present, the development of the electric vehicle industry is restricted by the battery life of the vehicle. In order to facilitate users to charge electric vehicles immediately when needed, relevant electric power departments have set up charging piles on the roadside. In order to meet the charging needs of electric vehicles, existing charging piles need to charge electric vehicles for a long time, usually for 6 to 8 hours. Long charging time is an important factor hindering the rapid development of electric vehicles. The development of fast charging piles is a top priority, and the development of charging cables suitable for fast charging systems is an important link in the realization of fast charging systems. [0003] The key ...

AI Technical Summary

Problems solved by technology

However, the differential mode interference current and common mode interference current on the charging cable can be directly conducted into the circuit module or other equipment of the electronic equipment (such as charging pile) through the cable, and can also generate electromagnetic fields in space to form radiation interference, causing equipment command errors Judgment, wrong operation

For example, an electric vehicle has been fully charged, but due to electromagnetic radiation interference, the charging pile still shows that it is not fully charged, resulting in overcharging of the electric vehicle

Images