CN111724943A - 一种新型多芯散热轨道交通车辆用电缆 - Google Patents
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Abstract
本发明公开了一种新型多芯散热轨道交通车辆用电缆,属于电缆技术领域。所述电缆本体中部设置有圆管填充层,且圆管填充层四周分布设置有数根镀锡铜导体,所述镀锡铜导体外部设置有高密度PE内绝缘层,且高密度PE内绝缘层外部设置有交联聚烯烃外绝缘层,所述电缆本体的缆芯外部设置有无卤阻燃带,该新型多芯散热轨道交通车辆用电缆采用导热塑料制成的空心圆管做填充,并且采用双层绝缘,内层绝缘采用高密度PE,外绝缘采用阻燃低烟无卤辐照交联聚烯烃,制成的电缆散热快,结构更加合理圆整,电缆被挤压或扭曲时,空心圆管起到缓冲作用,避免电缆芯线受损,具有阻燃低烟无卤、抗变形、抗挤压、重量轻、成本低的特点。
Description
技术领域
本发明涉及一种新型多芯散热轨道交通车辆用电缆,属于电缆技术领域。
背景技术
随着我国经济迅速发展,城市现代化进程明显加快,城市规模、城市人口不断扩大,随之产生的交通拥挤状况既妨碍了城市经济的发展,也影响了社会活动的正常秩序以及居民的日常出行。目前,城市轨道交通已成为国际上一些发达国家和地区解决交通难题的有效措施。
轨道交通具有运量大、速度快、安全、准点、保护环境、节约能源和用地等特点,随着轨道交通车辆技术的发展,对电缆的使用环境和性能的要求越来越高。要求在保证电缆使用性能的前提下,尽可能提高电缆抗变形、抗挤压等级,同时要求绝缘材料具有低烟无卤阻燃等环境友好性能。
发明内容
针对上述问题,本发明要解决的技术问题是提供一种新型多芯散热轨道交通车辆用电缆。
本发明的多芯散热轨道交通车辆用电缆,它包含电缆本体、圆管填充层、镀锡铜导体、高密度PE内绝缘层、交联聚烯烃外绝缘层、无卤阻燃带、总屏蔽层和交联聚烯烃外护套,所述电缆本体中部设置有圆管填充层,且圆管填充层四周分布设置有数根镀锡铜导体,所述镀锡铜导体外部设置有高密度PE内绝缘层,且高密度PE内绝缘层外部设置有交联聚烯烃外绝缘层,所述电缆本体的缆芯外部设置有无卤阻燃带,且无卤阻燃带外部设置有总屏蔽层,所述总屏蔽层外部设置有交联聚烯烃外护套。
优选的,所述圆管填充层为导热塑料制成的空心圆管。
优选的,所述镀锡铜导体是由多根镀锡铜丝绞合而成,且镀锡铜导体的芯数根据用电需要按序排列。
优选的,所述高密度PE内绝缘层的厚度小于等于0.15mm。
优选的,所述交联聚烯烃外绝缘层采用阻燃低烟无卤辐照交联聚烯烃材料制成。
优选的,所述总屏蔽层采用镀锡铜丝编织而成。
与现有技术相比,本发明的有益效果是:该新型多芯散热轨道交通车辆用电缆采用导热塑料制成的空心圆管做填充,并且采用双层绝缘,内层绝缘采用高密度PE,外绝缘采用阻燃低烟无卤辐照交联聚烯烃,制成的电缆散热快,结构更加合理圆整,电缆被挤压或扭曲时,空心圆管起到缓冲作用,避免电缆芯线受损,具有阻燃低烟无卤、抗变形、抗挤压、重量轻、成本低的特点。
附图说明
图1为本发明的具体实施方式一的结构示意图;
图2为本发明的具体实施方式二的结构示意图。
附图标记:电缆本体1、圆管填充层2、镀锡铜导体3、高密度PE内绝缘层4、交联聚烯烃外绝缘层5、无卤阻燃带6、总屏蔽层7、交联聚烯烃外护套8。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
具体实施方式一:如图1所示,本具体实施方式采用以下技术方案:它包含电缆本体1、圆管填充层2、镀锡铜导体3、高密度PE内绝缘层4、交联聚烯烃外绝缘层5、无卤阻燃带6、总屏蔽层7和交联聚烯烃外护套8,电缆本体1中部设置有圆管填充层2,且圆管填充层2四周分布设置有数根镀锡铜导体3,镀锡铜导体3外部设置有高密度PE内绝缘层4,且高密度PE内绝缘层4外部设置有交联聚烯烃外绝缘层5,电缆本体1的缆芯外部设置有无卤阻燃带6,且无卤阻燃带6外部设置有总屏蔽层7,卤阻燃带6用于稳固缆芯结构,总屏蔽层7外部设置有交联聚烯烃外护套8。
圆管填充层2为导热塑料制成的空心圆管,重量轻、散热好,电缆受外力挤压或扭曲时,起到缓冲作用,降低缆芯受损。
镀锡铜导体3是由多根镀锡铜丝绞合而成,且镀锡铜导体3的芯数根据用电需要按序排列。
高密度PE内绝缘层4的厚度小于等于0.15mm,提高绝缘电阻。
交联聚烯烃外绝缘层5采用阻燃低烟无卤辐照交联聚烯烃材料制成。
总屏蔽层7采用镀锡铜丝编织而成,屏蔽外界电磁及信号的干扰。
本具体实施方式制作方法:先由多根镀锡铜丝绞合制成镀锡铜导体3,镀锡铜导体3外挤包有一层高密度PE内绝缘层4,作为内绝缘层,厚度小于等于0.15mm,高密度PE内绝缘层4外再挤包一层交联聚烯烃外绝缘层5,组合成单根绝缘线芯,再根据用电需要的芯数按序排列成缆,缆芯内加有导热塑料制成的圆管填充层2,成缆后的缆芯外绕包无卤阻燃带6,再用镀锡铜丝编织总屏蔽层7,总屏蔽层7外挤包一层交联聚烯烃外护套8,组合成一种新型多芯散热轨道交通车辆用电缆。
具体实施方式一:如图2所示,本具体实施方式与具体实施方式一的不同之处在于:圆管填充层2四周分布设置有数根镀锡铜导体3替换为圆管填充层2与镀锡铜导体3相间按序排列,其它连接方式与具体实施方式一相同。
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求及其等同物限定。
Claims (8)
1.一种新型多芯散热轨道交通车辆用电缆,其特征在于:它包含电缆本体(1)、圆管填充层(2)、镀锡铜导体(3)、高密度PE内绝缘层(4)、交联聚烯烃外绝缘层(5)、无卤阻燃带(6)、总屏蔽层(7)和交联聚烯烃外护套(8),所述电缆本体(1)中部设置有圆管填充层(2),且圆管填充层(2)四周分布设置有数根镀锡铜导体(3),所述镀锡铜导体(3)外部设置有高密度PE内绝缘层(4),且高密度PE内绝缘层(4)外部设置有交联聚烯烃外绝缘层(5),所述电缆本体(1)的缆芯外部设置有无卤阻燃带(6),且无卤阻燃带(6)外部设置有总屏蔽层(7),所述总屏蔽层(7)外部设置有交联聚烯烃外护套(8)。
2.根据权利要求1所述的一种新型多芯散热轨道交通车辆用电缆,其特征在于:所述圆管填充层(2)为导热塑料制成的空心圆管。
3.根据权利要求1所述的一种新型多芯散热轨道交通车辆用电缆,其特征在于:所述镀锡铜导体(3)是由多根镀锡铜丝绞合而成,且镀锡铜导体(3)的芯数根据用电需要按序排列。
4.根据权利要求1所述的一种新型多芯散热轨道交通车辆用电缆,其特征在于:所述高密度PE内绝缘层(4)的厚度小于等于0.15mm。
5.根据权利要求1所述的一种新型多芯散热轨道交通车辆用电缆,其特征在于:所述交联聚烯烃外绝缘层(5)采用阻燃低烟无卤辐照交联聚烯烃材料制成。
6.根据权利要求1所述的一种新型多芯散热轨道交通车辆用电缆,其特征在于:所述总屏蔽层(7)采用镀锡铜丝编织而成。
7.一种新型多芯散热轨道交通车辆用电缆,其特征在于:电缆的制备方法为:先由多根镀锡铜丝绞合制成镀锡铜导体(3),镀锡铜导体(3)外挤包有一层高密度PE内绝缘层(4),作为内绝缘层,厚度小于等于0.15mm,高密度PE内绝缘层(4)外再挤包一层交联聚烯烃外绝缘层(5),组合成单根绝缘线芯,再根据用电需要的芯数按序排列成缆,缆芯内加有导热塑料制成的圆管填充层(2),成缆后的缆芯外绕包无卤阻燃带(6),再用镀锡铜丝编织总屏蔽层(7),总屏蔽层(7)外挤包一层交联聚烯烃外护套(8),组合成一种新型多芯散热轨道交通车辆用电缆。
8.一种新型多芯散热轨道交通车辆用电缆,其特征在于:电缆中圆管填充层(2)与镀锡铜导体(3)为相间按序排列。
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