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CN208078201U - 一种高压线缆的接头结构 - Google Patents

一种高压线缆的接头结构 Download PDF

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CN208078201U
CN208078201U CN201820390061.7U CN201820390061U CN208078201U CN 208078201 U CN208078201 U CN 208078201U CN 201820390061 U CN201820390061 U CN 201820390061U CN 208078201 U CN208078201 U CN 208078201U
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copper foil
cable
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孙鹏洋
张�浩
王彦昊
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Sophisticated Electric Polytron Technologies Inc
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Priority to US16/981,824 priority patent/US11205866B2/en
Priority to JP2020549576A priority patent/JP7033212B2/ja
Priority to PCT/CN2019/077424 priority patent/WO2019179318A1/zh
Priority to EP19771756.4A priority patent/EP3754803B1/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/02—Cable terminations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
    • H01R11/09—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/183—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/70—Insulation of connections
    • H01R4/72—Insulation of connections using a heat shrinking insulating sleeve
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/02—Cable terminations
    • H02G15/04—Cable-end sealings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/12—End pieces terminating in an eye, hook, or fork

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  • Cable Accessories (AREA)
  • Processing Of Terminals (AREA)

Abstract

本实用新型公开了一种高压线缆的接头结构，包括电缆芯，电缆芯上由内到外依次包裹内绝缘层、屏蔽层和外绝缘层，电缆芯的端部剥去一段内绝缘层和外绝缘层，外绝缘层的剥去长度大于内绝缘层，电缆芯的端部连接了外接端子，电缆芯的端部与外接端子连接处、以及相邻的一段内绝缘层上包裹了热缩管，热缩管的端部与外绝缘层之间具有间隙，在间隙中所述屏蔽层上包裹了铜箔，屏蔽层通过铜箔对外连接线缆接头。本实用新型提高了线缆接头与高压线缆连接时的安全性，能够防止高压线缆尾端直径过大，也能够防止屏蔽层被线缆接头刮坏。

Description

一种高压线缆的接头结构
技术领域
本实用新型涉及一种高压线缆的接头结构，用于汽车中高压线缆与线缆接头之间的连接。
背景技术
目前，在新能源汽车上的电机控制器和电机中，会经常使用具有防水、屏蔽功能的线缆接头，该线缆接头连接高压线缆，高压线缆的端部设置有环形端子，连接时要求高压线缆的屏蔽层在特定的尺寸处外露与线缆接头接触，实现屏蔽功能。
在线缆接头与高压线缆连接时，经常会遇到带高压的环形端子与屏蔽层的安全距离不足，造成漏电的问题；环形端子尾部线缆直径过大，无法插入线缆接头的问题；以及屏蔽层容易被线缆接头刮坏的问题。
实用新型内容
针对上述问题，本实用新型的目的在于提供一种高压线缆的接头结构，提高了线缆接头与高压线缆连接时的安全性，能够防止高压线缆尾端直径过大，也能够防止屏蔽层被线缆接头刮坏。
为了实现上述目的，本实用新型采用以下技术方案：
一种高压线缆的接头结构，包括电缆芯，所述电缆芯上由内到外依次包裹内绝缘层、屏蔽层和外绝缘层，所述电缆芯的端部剥去一段内绝缘层和外绝缘层，所述外绝缘层的剥去长度大于所述内绝缘层，所述电缆芯的端部连接了外接端子，所述电缆芯的端部与所述外接端子连接处、以及相邻的一段内绝缘层上包裹了热缩管，所述热缩管的端部与所述外绝缘层之间具有间隙，在所述间隙中所述屏蔽层上包裹了铜箔，所述屏蔽层通过所述铜箔对外连接线缆接头。
可选地，所述铜箔包括外层铜箔和内层铜箔，所述外层铜箔的长度大于所述内层铜箔，所述屏蔽层在所述间隙中翻折，翻折段位于所述内层铜箔和外层铜箔之间。
可选地，所述热缩管包括内层热缩管和外层热缩管，所述外层热缩管包裹住所述内层热缩管、以及相邻的一段所述外层铜箔。
可选地，所述外层热缩管的内壁上在包裹所述外层铜箔的位置设置有减薄段。
可选地，所述外接端子包括套管和连接环，所述电缆芯的端部插入所述套管中，钳压所述套管变形实现与所述电缆芯的固定连接。
本实用新型的优点及有益效果是：
本实用新型使用热缩管隔离环形端子与屏蔽层，使得高压电和低压电安全隔离。
高压线缆的屏蔽层在热缩管外部，能够防止高压线缆尾端直径过大。
本实用新型使用铜箔包裹屏蔽层加强了屏蔽层的强度，可以避免在安装高压线束时屏蔽触点接触区域的屏蔽层被刮坏。
附图说明
图1为本实用新型实施例中高压线缆的接头结构的主视图；
图2为本实用新型实施例中高压线缆的接头结构的剖视图；
图3为本实用新型实施例中高压线缆的剖视图；
图4为本实用新型实施例中外接端子的剖视图。
图中：1.内层热缩管；2.外层热缩管；3.外层铜箔；4.内层铜箔；5.外绝缘层；6.内绝缘层；7.电缆芯；8.屏蔽层；9.外接端子；9-1.连接环；9-2.套管。
具体实施方式
本实用新型的设计构思是：
针对现有技术中线缆接头与高压线缆连接时所存在的缺陷，本实用新型提供了一种高压线缆的接头结构，使用热缩管隔离环形端子与屏蔽层，使得高压电和低压电安全隔离；屏蔽层在热缩管外部，能够防止高压线缆尾端直径过大；使用铜箔包裹屏蔽层加强了屏蔽层的强度，可以避免在安装高压线束时屏蔽点接触区域的屏蔽层被刮坏。
为使本实用新型的目的、技术方案和优点更加清楚，下面将结合附图对本实用新型实施方式作进一步地详细描述。
如图1、图2所示为一种高压线缆的接头结构，包括电缆芯7，电缆芯7上由内到外依次包裹内绝缘层6、屏蔽层8和外绝缘层5，电缆芯7的端部剥去一段内绝缘层6和外绝缘层5，外绝缘层5的剥去长度大于内绝缘层6，如图3所示。
如图2所示，电缆芯7的端部连接了外接端子9，电缆芯7的端部与外接端子9连接处、以及相邻的一段内绝缘层6上包裹了热缩管，热缩管的端部与外绝缘层5之间具有间隙，在间隙中屏蔽层8上包裹了铜箔，屏蔽层8通过铜箔对外连接线缆接头。
如图2所示，铜箔包括外层铜箔3和内层铜箔4，外层铜箔3的长度大于内层铜箔4，屏蔽层8在间隙中翻折，翻折段位于内层铜箔3和外层铜箔4之间。
内层铜箔3和外层铜箔4均可以缠绕若干层，缠绕后能够比较紧固地包裹住屏蔽层8。
在本实施例中，屏蔽层8在间隙中翻折，提高了屏蔽层8与外接端子9之间绝缘的可靠性。屏蔽层8的翻折段在热缩管外部，这样就有效的减小了热缩管部分的线束直径，解决高压线缆无法插入线缆接头的问题。
铜箔加强了屏蔽层8的强度，可以避免在安装高压线束时屏蔽点接触区域的屏蔽层被刮坏。
设置两层铜箔提高了屏蔽层8实现屏蔽功能的可靠性，主要是提高了屏蔽层8对外接触的有效性。
如图2所示，热缩管包括内层热缩管1和外层热缩管2，外层热缩管2包裹住内层热缩管1、以及相邻的一段外层铜箔3，这样可以固定住外层铜箔3。内层热缩管1隔离外接端子9与屏蔽层8，使得高压电和低压电安全隔离。
外层热缩管2的内壁上在包裹外层铜箔3的位置设置有减薄段，这样不会让热缩管处的直径过大。
图2中示出了屏蔽层8的对外接触区域，以及屏蔽层8与外接端子9之间的安全距离。图1中可以直接观察到外层铜箔3是外露的。
如图4所示，外接端子9包括套管9-2和连接环9-1，电缆芯7的端部插入套管9-2中，钳压套管9-2变形实现与电缆芯7的固定连接。
以上所述仅为本实用新型的实施方式，并非用于限定本实用新型的保护范围。凡在本实用新型的精神和原则之内所作的任何修改、等同替换、改进、扩展等，均包含在本实用新型的保护范围内。

Claims (5)

1.一种高压线缆的接头结构，包括电缆芯，所述电缆芯上由内到外依次包裹内绝缘层、屏蔽层和外绝缘层，所述电缆芯的端部剥去一段内绝缘层和外绝缘层，所述外绝缘层的剥去长度大于所述内绝缘层，其特征在于，所述电缆芯的端部连接了外接端子，所述电缆芯的端部与所述外接端子连接处、以及相邻的一段内绝缘层上包裹了热缩管，所述热缩管的端部与所述外绝缘层之间具有间隙，在所述间隙中所述屏蔽层上包裹了铜箔，所述屏蔽层通过所述铜箔对外连接线缆接头。
2.根据权利要求1所述的高压线缆的接头结构，其特征在于，所述铜箔包括外层铜箔和内层铜箔，所述外层铜箔的长度大于所述内层铜箔，所述屏蔽层在所述间隙中翻折，翻折段位于所述内层铜箔和外层铜箔之间。
3.根据权利要求2所述的高压线缆的接头结构，其特征在于，所述热缩管包括内层热缩管和外层热缩管，所述外层热缩管包裹住所述内层热缩管、以及相邻的一段所述外层铜箔。
4.根据权利要求3所述的高压线缆的接头结构，其特征在于，所述外层热缩管的内壁上在包裹所述外层铜箔的位置设置有减薄段。
5.根据权利要求1所述的高压线缆的接头结构，其特征在于，所述外接端子包括套管和连接环，所述电缆芯的端部插入所述套管中，钳压所述套管变形实现与所述电缆芯的固定连接。
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CN201820390061.7U CN208078201U (zh) 2018-03-21 2018-03-21 一种高压线缆的接头结构
US16/981,824 US11205866B2 (en) 2018-03-21 2019-03-08 Joint structure for high-voltage cable
JP2020549576A JP7033212B2 (ja) 2018-03-21 2019-03-08 高圧ケーブルのジョイント構造
PCT/CN2019/077424 WO2019179318A1 (zh) 2018-03-21 2019-03-08 一种高压线缆的接头结构
EP19771756.4A EP3754803B1 (en) 2018-03-21 2019-03-08 Joint structure for high-voltage cable

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