The invention discloses a preparation method of an electric vehicle charging cable. The method is characterized by comprising the following steps: step 1, concentrically stranding silver-plated copper wires on a stranding machine to obtain a silver-plated copper wire conductor, and coating the silver-plated copper wire conductor with a foamed fluorinated ethylene propylene insulating layer through an extruder to form a power line; step 2, performing star stranding on at least two power lines, at least two auxiliary power lines, a signal transmission line and a grounding line to obtain a wire core main body; step 3, coating the exterior of the wire core main body with an insulating wrapping layer, and filling a gap between the wire core main body and the insulating wrapping layer with a polypropylene filler; and step 4, finally coating the insulating wrapping layer with an outer sheath. The cable has excellent electrical performance characteristics of low attenuation, high bandwidth and the like.
本发明公开一种电动汽车充电电缆的制备方法,其特征在于,包括:步骤一:先将镀银铜线在绞线机上进行同心绞合,得到镀银铜线导体,接着通过挤出机将发泡聚全氟乙丙烯绝缘层包覆于镀银铜线导体的外部以形成电源线;步骤二:将至少两根所述电源线、至少两根所述辅助电源线、信号传输线和接地线进行星绞得到所述线芯主体;步骤三:将绝缘绕包层包覆于所述线芯主体的外部,且同时将聚丙烯填料填充于所述线芯主体与所述绝缘绕包层之间的缝隙中;步骤四:最后将外护套由包覆于所述绝缘绕包层的外部;本发明具有低衰减、高带宽等优异的电性能特性。
Preparation method of electric vehicle charging cable
一种电动汽车充电电缆的制备方法
2021-04-27
Patent
Elektronische Ressource
Chinesisch