CN113539550B - 一种柔性耐低温液冷充电桩电缆 - Google Patents

一种柔性耐低温液冷充电桩电缆 Download PDF

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CN113539550B
CN113539550B CN202110704965.9A CN202110704965A CN113539550B CN 113539550 B CN113539550 B CN 113539550B CN 202110704965 A CN202110704965 A CN 202110704965A CN 113539550 B CN113539550 B CN 113539550B
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cable
liquid cooling
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soft rubber
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CN113539550A (zh
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姚敏
田鸣
惠俊恒
巫敏
肖俊
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Anhui Pacific Cable Co ltd
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Abstract

本发明公开了一种柔性耐低温液冷充电桩电缆，属于电缆技术领域，包括电缆本体，所述电缆本体内部的中心位置处挤包有软质橡胶层，软质橡胶层的内部以其为圆心等间距分别设置有铜导体、信号线芯和信号辅助控制线芯，所述软质橡胶层外侧的电缆本体内部挤包有防护层，其中，所述软质橡胶层内部的辐照交联无卤乙丙橡胶绝缘、信号线芯绕包聚酯带和信号辅助控制线芯成缆绕包无纺布外侧皆设置有弧形液冷管，且弧形液冷管的弧度至少为180°，所述弧形液冷管的另一端皆通过导管延伸至防护层的内部并连接有椭圆形囊体。本发明电缆在低温环境下易于弯曲、大电流充电温升低、阻燃、寿命长，此类电缆使用经济性高，环保无污染。

Description

一种柔性耐低温液冷充电桩电缆
技术领域
本发明涉及电缆技术领域，具体的涉及一种柔性耐低温液冷充电桩电缆。
背景技术
随着新能源汽车的不断增多，作为其不能寄出设施的充电桩也自然随之走高，而充电桩的发展也推动了与线缆企业的发展。随着新能源汽车的不断增多，作为新能源汽车的补能基础设施，充电桩产业也因此步入了快车道。
中国电动充电基础设施促进联盟公布的2020年8月充电桩运营数据显示，截止到2020年8月，全国充电基础设施（公共+私人）累计数量为138.2万台，同比增加27.9%。未来10年，我国充电桩建设仍存在6300万的缺口。预计将形成10253亿元的充电桩基础设施建设市场，同样充电桩电缆需求量也将大大增加。
目前充电桩设施主要集中在南方，随着新能源汽车全国的普及，充电桩设施建设在北方将大大增加，但是普通电缆在-30℃以下的低温环境中电缆会变的很硬，难以弯曲，给用户充电带来不便，另外现有充电桩电缆在充电过程中会致使电缆温升较高，存在安全隐患，如采用增大电缆截面的方式来降低温升，一是成本增加较大，二是电缆截面增加重量也会随之增加，不利于用户使用。本发明亦在提供一种柔性耐低温液冷交流充电桩电缆，在不增加电缆截面的情况下采用液冷装置降低充电温升，同时改善电缆低温环境下的柔软度，此电缆在未来几年将有广阔的发展空间。
发明内容
1.要解决的技术问题
本发明要解决的技术问题在于提供一种柔性耐低温液冷充电桩电缆，其电缆在低温环境下易于弯曲、大电流充电温升低、阻燃、寿命长，此类电缆使用经济性高，环保无污染。
2.技术方案
为解决上述问题，本发明采取如下技术方案：
一种柔性耐低温液冷充电桩电缆，包括电缆本体，所述电缆本体内部的中心位置处挤包有软质橡胶层，软质橡胶层的内部以其为圆心等间距分别设置有铜导体、信号线芯和信号辅助控制线芯，且信号线芯和信号辅助控制线芯外侧的软质橡胶层内部分别绕包有信号线芯对绞绕包铝塑带屏蔽和信号辅助控制线芯成缆绕包无纺布，所述铜导体的外侧挤包有辐照交联无卤乙丙橡胶绝缘，所述信号线芯对绞绕包铝塑带屏蔽的外侧依次绕包有信号线芯外镀锡铜丝编织屏蔽和信号线芯绕包聚酯带，所述软质橡胶层外侧的电缆本体内部挤包有防护层，且防护层的外侧绕包有总成缆外无纺布，所述总成缆外无纺布外侧的电缆本体内部挤包有低烟无卤阻燃热塑性聚氨酯弹性体外护套，其中，所述软质橡胶层内部的辐照交联无卤乙丙橡胶绝缘、信号线芯绕包聚酯带和信号辅助控制线芯成缆绕包无纺布外侧皆设置有弧形液冷管，且弧形液冷管的弧度至少为180°，对称的两个线芯之间的所述弧形液冷管端部通过连接管相互连通，所述弧形液冷管的另一端皆通过导管延伸至防护层的内部并连接有椭圆形囊体。
优选的，所述信号线芯导体内设置有一股提高抗拉强度的KEVLAR纤维丝。
优选的，所述电缆本体内部的导体束丝，复绞,成缆方向均为左向。
优选的，所述防护层是由顺丁橡胶挤包而成。
优选的，所述弧形液冷管和连接管皆采用尼龙制备而成。
3.有益效果
（1）本发明将电缆本体内部的导体束丝、复绞方向和成缆外绕包层方向，信号线芯绞合与辅助线芯方向，总成缆方向均为左向,同向设置,避免电缆在弯曲过程中产生反向应力,综合提高电缆弯曲性能，并在电缆信号线芯导体内增加一股KEVLAR纤维丝加强,增加电缆柔韧性的同时提高导体的抗拉强度，避免反复移动导体断线，同时电缆信号线芯对绞外采用铝塑复合带绕包+镀锡铜丝编织双层组合屏蔽,降低阻抗的同时，提高屏蔽衰减，屏蔽转移阻抗≤31mΩ/m，屏蔽衰减≥70dB, 使电缆具有优异的抗电磁干扰能力，信号辅助控制线芯组合成缆减小电缆结构尺寸，辐照交联无卤乙丙橡胶绝缘，硬度80A，经过辐照交联提高强度，使其抗张强度≥10Mpa，绝缘电阻可提高至1.0*10 14 Ω·mm，交联后无副产物，无毒、无味，机械性能高，环保等级高，辐照交联无卤乙丙橡胶料-60℃环境温度下与常温环境温度下状态一致，弯曲不受影响，提高电缆整体弯曲性能。
（2）本发明利用弧形液冷管的对导体进行环绕，且弧形液冷管的弧度至少为180°，并在弧形液冷管的另一端皆通过导管连接有椭圆形囊体，当对电缆本体进行弯折时，将弯折处椭圆形囊体内部的冷却水沿弧形液冷管和连接管挤压进入对称位置处的椭圆形囊体内部，并在冷却水增加后的压力作用下，将椭圆形囊体进行膨胀，随着椭圆形囊体侧边的张开的作用下，方便辅助使用者对电缆进行弯折，提高电缆的柔韧性，同时利用弧形液冷管一方面对导线进行冷却，降低充电过程导体温升，另一方面弧形液冷管对导体进行环绕，使得在电缆本体发生弯折时，利用弧形液冷管内部的空心结构，使得导体挤压弧形液冷管内侧壁，使得弧形液冷管在弯折时变为扁平状，减少导体弯折的角度，方便对导体进行防护，防止在对电缆的弯折过程中对导体造成损坏断裂，同时利用弧形液冷管内部的空心结构，使得在弯折时进一步提高电缆的柔韧性。
附图说明
图1为本发明的整体内部结构示意图；
图2为本发明的整体截面结构示意图。
附图标记：1、电缆本体；2、铜导体；3、软质橡胶层；4、辐照交联无卤乙丙橡胶绝缘；5、弧形液冷管；6、连接管；7、信号线芯绕包聚酯带；8、信号线芯对绞绕包铝塑带屏蔽；9、信号线芯；10、信号辅助控制线芯成缆绕包无纺布；11、防护层；12、椭圆形囊体；13、信号辅助控制线芯；14、总成缆外无纺布；15、信号线芯外镀锡铜丝编织屏蔽；16、低烟无卤阻燃热塑性聚氨酯弹性体外护套。
具体实施方式
下面结合附图和实施例对本发明作进一步详细的说明。
如图1-2所示的一种柔性耐低温液冷充电桩电缆，包括电缆本体1，电缆本体1内部的中心位置处挤包有软质橡胶层3，软质橡胶层3的内部以其为圆心等间距分别设置有铜导体2、信号线芯9和信号辅助控制线芯13，且信号线芯9和信号辅助控制线芯13外侧的软质橡胶层3内部分别绕包有信号线芯对绞绕包铝塑带屏蔽8和信号辅助控制线芯成缆绕包无纺布10，铜导体2的外侧挤包有辐照交联无卤乙丙橡胶绝缘4，信号线芯对绞绕包铝塑带屏蔽8的外侧依次绕包有信号线芯外镀锡铜丝编织屏蔽15和信号线芯绕包聚酯带7，软质橡胶层3外侧的电缆本体1内部挤包有防护层11，且防护层11的外侧绕包有总成缆外无纺布14，总成缆外无纺布14外侧的电缆本体1内部挤包有低烟无卤阻燃热塑性聚氨酯弹性体外护套16，其中，软质橡胶层3内部的辐照交联无卤乙丙橡胶绝缘4、信号线芯绕包聚酯带7和信号辅助控制线芯成缆绕包无纺布10外侧皆设置有弧形液冷管5，且弧形液冷管5的弧度至少为180°，对称的两个线芯之间的弧形液冷管5端部通过连接管6相互连通，弧形液冷管5的另一端皆通过导管延伸至防护层11的内部并连接有椭圆形囊体12，当对电缆本体1进行弯折时，将弯折处椭圆形囊体12内部的冷却水沿弧形液冷管5和连接管6挤压进入对称位置处的椭圆形囊体12内部，并在冷却水增加后的压力作用下，将椭圆形囊体12进行膨胀，随着椭圆形囊体12侧边的张开的作用下，方便辅助使用者对电缆进行弯折，提高电缆的柔韧性，同时利用弧形液冷管5一方面对导线进行冷却，降低充电过程导体温升，另一方面弧形液冷管5对导体进行环绕，使得在电缆本体1发生弯折时，利用弧形液冷管5内部的空心结构，使得导体挤压弧形液冷管5内侧壁，使得弧形液冷管5在弯折时变为扁平状，减少导体弯折的角度，方便对导体进行防护，防止在对电缆的弯折过程中对导体造成损坏断裂，同时利用弧形液冷管5内部的空心结构，使得在弯折时进一步提高电缆的柔韧性。
进一步，信号线芯9导体内设置有一股提高抗拉强度的KEVLAR纤维丝，增加电缆柔韧性的同时提高导体的抗拉强度，避免反复移动导体断线。
进一步，电缆本体1内部的导体束丝，复绞,成缆等方向均为左向，同向设置,避免电缆在弯曲过程中产生反向应力,综合提高电缆弯曲性能。
进一步，防护层11是由顺丁橡胶挤包而成，弹性与耐磨性优良，耐老化性好，耐低温性优异，在动态负荷下发热量小，易于金属粘合。
进一步，弧形液冷管5和连接管6皆采用尼龙制备而成，可有效降低充电过程线芯温升。
本技术领域中的普通技术人员应当认识到，以上的实施例仅是用来说明本发明，而并非用作为对本发明的限定，只要在本发明的实质精神范围内，对以上所述实施例的变化、变型都将落在本发明的权利要求范围内。

Claims (5)

1.一种柔性耐低温液冷充电桩电缆，其特征在于，包括电缆本体（1），所述电缆本体（1）内部的中心位置处挤包有软质橡胶层（3），软质橡胶层（3）的内部以其为圆心等间距分别设置有铜导体（2）、信号线芯（9）和信号辅助控制线芯（13），且信号线芯（9）和信号辅助控制线芯（13）外侧的软质橡胶层（3）内部分别绕包有信号线芯对绞绕包铝塑带屏蔽（8）和信号辅助控制线芯成缆绕包无纺布（10），所述铜导体（2）的外侧挤包有辐照交联无卤乙丙橡胶绝缘（4），所述信号线芯对绞绕包铝塑带屏蔽（8）的外侧依次绕包有信号线芯外镀锡铜丝编织屏蔽（15）和信号线芯绕包聚酯带（7），所述软质橡胶层（3）外侧的电缆本体（1）内部挤包有防护层（11），且防护层（11）的外侧绕包有总成缆外无纺布（14），所述总成缆外无纺布（14）外侧的电缆本体（1）内部挤包有低烟无卤阻燃热塑性聚氨酯弹性体外护套（16），其中，所述软质橡胶层（3）内部的辐照交联无卤乙丙橡胶绝缘（4）、信号线芯绕包聚酯带（7）和信号辅助控制线芯成缆绕包无纺布（10）外侧皆设置有弧形液冷管（5），且弧形液冷管（5）的弧度至少为180°，对称的两个线芯之间的所述弧形液冷管（5）端部通过连接管（6）相互连通，所述弧形液冷管（5）的另一端皆通过导管延伸至防护层（11）的内部并连接有椭圆形囊体（12）。
2.根据权利要求1所述的一种柔性耐低温液冷充电桩电缆，其特征在于，所述信号线芯（9）导体内设置有一股提高抗拉强度的KEVLAR纤维丝。
3.根据权利要求1所述的一种柔性耐低温液冷充电桩电缆，其特征在于，所述电缆本体（1）内部的导体束丝，复绞,成缆方向均为左向。
4.根据权利要求1所述的一种柔性耐低温液冷充电桩电缆，其特征在于，所述防护层（11）是由顺丁橡胶挤包而成。
5.根据权利要求1所述的一种柔性耐低温液冷充电桩电缆，其特征在于，所述弧形液冷管（5）和连接管（6）皆采用尼龙制备而成。
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GB1410146A (en) * 1973-11-10 1975-10-15 Goodman D J Watercooled electric furnace cable terminal
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CN109215873A (zh) * 2018-09-25 2019-01-15 山东大学 液体冷却充电电缆及电动汽车快速充电设备
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