CN110211731A - 一种耐曲挠emc系统用控制电缆 - Google Patents
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Abstract
本发明公开了一种耐曲挠EMC系统用控制电缆,缆芯的数量为七个,且布置方式采用一个缆芯设置在正中心位置,其余六个缆芯呈环形相互倚靠在一起;缆芯由导体和绝缘层组成,导体采用双零退火软铜丝,且铜丝内部填充三分之一的铜箔丝,绝缘层包裹缠绕在导体的外表面;在呈环形布置的六个缆芯的绝缘层外侧设置有抗拉层;抗拉层采用多层抗拉纤维纱材料制成;抗拉层的外侧设置有复合屏蔽层;复合屏蔽层的外壁包裹有耐磨外护层;复合屏蔽层采用镀锡铜丝编织和铝箔绕包组合的结构;抗拉层的内部与缆芯之间空隙设置有填充层。本发明能够提供一种既能够满足EMC要求的电磁兼容性能,又具备耐曲挠且柔软性好的耐曲挠EMC系统用控制电缆。
Description
技术领域
本发明涉及电缆产品技术领域,具体为一种耐曲挠EMC系统用控制电缆。
背景技术
EMC(Electro Magnetic Compatibility)中文解释为电磁兼容性,是指设备或系统在其电磁环境中符合要求运行并不对其环境中的任何设备产生无法忍受的电磁干扰的能力。因此,EMC包括两个方面的要求:一方面是指设备在正常运行过程中对所在环境产生的电磁干扰不能超过一定的限值;另一方面是指器具对所在环境中存在的电磁干扰具有一定程度的抗扰度,即电磁敏感性。
随着电子电器设备的广泛使用,电磁干扰对环境的影响日益严重,以致实际应用中的各类电器的电磁干扰和相互不兼容时有发生。工业、科学、医疗、信息、机动车辆、电力设备和电气化铁道等电工电子设备产生的电磁干扰不仅会扰乱公共安全和通信设备的正常工作,而且对于居民日常的文化生活甚至人身安全都会造成影响和危害。且各种电子电气设备体积趋于小型化,设备内部连接用线缆的安装空间也日渐狭小,这就使得常规控制电缆不仅不能满足电磁兼容性能的要求,也不能满足安装环境和频繁弯曲的要求。
发明内容
针对现有技术的不足,本发明提供了一种既能够满足EMC要求的电磁兼容性能,又具备耐曲挠且柔软性好的耐曲挠EMC系统用控制电缆。
为实现上述目的,本发明提供如下技术方案:一种耐曲挠EMC系统用控制电缆,包括缆芯、导体、绝缘层、抗拉层、复合屏蔽层、耐磨外护层和填充层,所述缆芯的数量为七个,且布置方式采用一个缆芯设置在正中心位置,其余六个缆芯呈环形相互倚靠在一起;所述缆芯由导体和绝缘层组成,所述导体采用双零退火软铜丝,且铜丝内部填充三分之一的铜箔丝,所述绝缘层包裹缠绕在导体的外表面;在呈环形布置的六个所述缆芯的绝缘层外侧设置有抗拉层;所述抗拉层采用多层抗拉纤维纱材料制成;所述抗拉层的外侧设置有复合屏蔽层;所述复合屏蔽层的外壁包裹有耐磨外护层;所述复合屏蔽层采用镀锡铜丝编织和铝箔绕包组合的结构;所述耐磨外护层辐射改性透明PVC材料;所述抗拉层的内部与缆芯之间空隙设置有填充层;所述填充层采用芳纶纤维材料。
作为本发明的进一步改进,所述导体采用经过拉丝后束绞再复绞处理的多股退火铜丝绞合的导电线芯,导体束绞和复绞采用同一绞向,且束绞和复绞的绞合节径比不大于十倍。
作为本发明的进一步改进,所述绝缘层为改性热塑性弹性体绝缘料制成,通过挤塑机均匀挤出到导体的外壁上。
作为本发明的进一步改进,所述复合屏蔽层采用镀锡铜丝编织后再进行铝箔绕包组合而成,镀锡铜丝编织层单向覆盖率大于0.69,铝箔重叠绕包于镀锡铜丝编织层上且搭盖率不小于30%。
本发明提供了一种耐曲挠EMC系统用控制电缆,具备以下有益效果:
本技术方案的导体采用双零退火软铜丝,且铜丝内部填充三分之一的铜箔丝,超细的单丝丝径加上韧性极强的铜箔丝使得电缆经反复弯曲导体也不会断裂;本技术方案的绝缘层采用改性热塑性弹性体材料,具有在起到电气绝缘要求的同时,还具有较低的硬度及超强的韧性;本技术方案的复合屏蔽层采用镀锡铜丝编织和铝箔绕包组合结构,既可以起到优异的阻水防潮作用,还可以使得电缆的屏蔽抑制系数不大于0.01,电缆的抗干扰满足复杂电磁环境的要求;本技术方案的耐磨外护层采用改性透明PVC材料,具有环保安全、耐磨、柔软的有益技术效果,且透明的外护套使得电缆的检修维护更加方便;本技术方案的电缆具有耐曲挠、耐磨、高屏蔽抑制系数集于一体,可广泛应用在需要经常弯曲移动且复杂的电磁环境中。
附图说明
图1为本发明结构示意图。
图中附图标记为:1.缆芯;2.导体;3.绝缘层;4.抗拉层;5.复合屏蔽层;6.耐磨外护层;7.填充层。
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。
如图1所示,本发明提供一种技术方案:一种耐曲挠EMC系统用控制电缆,包括缆芯1、导体2、绝缘层3、抗拉层4、复合屏蔽层5、耐磨外护层6和填充层7,所述缆芯1的数量为七个,且布置方式采用一个缆芯1设置在正中心位置,其余六个缆芯1呈环形相互倚靠在一起;所述缆芯1由导体2和绝缘层3组成,所述导体2采用双零退火软铜丝,且铜丝内部填充三分之一的铜箔丝,所述绝缘层3包裹缠绕在导体2的外表面;在呈环形布置的六个所述缆芯1的绝缘层3外侧设置有抗拉层4;所述抗拉层4采用多层抗拉纤维纱材料制成;所述抗拉层4的外侧设置有复合屏蔽层5;所述复合屏蔽层5的外壁包裹有耐磨外护层6;所述复合屏蔽层5采用镀锡铜丝编织和铝箔绕包组合的结构;所述耐磨外护层6辐射改性透明PVC材料;所述抗拉层4的内部与缆芯1之间空隙设置有填充层7;所述填充层7采用芳纶纤维材料。所述导体2采用经过拉丝后束绞再复绞处理的多股退火铜丝绞合的导电线芯,导体束绞和复绞采用同一绞向,且束绞和复绞的绞合节径比不大于十倍。所述绝缘层3为改性热塑性弹性体绝缘料制成,通过挤塑机均匀挤出到导体2的外壁上。所述复合屏蔽层5采用镀锡铜丝编织后再进行铝箔绕包组合而成,镀锡铜丝编织层单向覆盖率大于0.69,铝箔重叠绕包于镀锡铜丝编织层上且搭盖率不小于30%。
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 (4)
1.一种耐曲挠EMC系统用控制电缆,其特征在于:包括缆芯(1)、导体(2)、绝缘层(3)、抗拉层(4)、复合屏蔽层(5)、耐磨外护层(6)和填充层(7),所述缆芯(1)的数量为七个,且布置方式采用一个缆芯(1)设置在正中心位置,其余六个缆芯(1)呈环形相互倚靠在一起;所述缆芯(1)由导体(2)和绝缘层(3)组成,所述导体(2)采用双零退火软铜丝,且铜丝内部填充三分之一的铜箔丝,所述绝缘层(3)包裹缠绕在导体(2)的外表面;在呈环形布置的六个所述缆芯(1)的绝缘层(3)外侧设置有抗拉层(4);所述抗拉层(4)采用多层抗拉纤维纱材料制成;所述抗拉层(4)的外侧设置有复合屏蔽层(5);所述复合屏蔽层(5)的外壁包裹有耐磨外护层(6);所述复合屏蔽层(5)采用镀锡铜丝编织和铝箔绕包组合的结构;所述耐磨外护层(6)辐射改性透明PVC材料;所述抗拉层(4)的内部与缆芯(1)之间空隙设置有填充层(7);所述填充层(7)采用芳纶纤维材料。
2.根据权利要求1所述的一种耐曲挠EMC系统用控制电缆,其特征在于:所述导体(2)采用经过拉丝后束绞再复绞处理的多股退火铜丝绞合的导电线芯,导体束绞和复绞采用同一绞向,且束绞和复绞的绞合节径比不大于十倍。
3.根据权利要求1所述的一种耐曲挠EMC系统用控制电缆,其特征在于:所述绝缘层(3)为改性热塑性弹性体绝缘料制成,通过挤塑机均匀挤出到导体(2)的外壁上。
4.根据权利要求1所述的一种耐曲挠EMC系统用控制电缆,其特征在于:所述复合屏蔽层(5)采用镀锡铜丝编织后再进行铝箔绕包组合而成,镀锡铜丝编织层单向覆盖率大于0.69,铝箔重叠绕包于镀锡铜丝编织层上且搭盖率不小于30%。
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