CN110783722A - 一种自愈型电力线夹 - Google Patents

一种自愈型电力线夹 Download PDF

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CN110783722A
CN110783722A CN201810858674.3A CN201810858674A CN110783722A CN 110783722 A CN110783722 A CN 110783722A CN 201810858674 A CN201810858674 A CN 201810858674A CN 110783722 A CN110783722 A CN 110783722A
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connecting plate
wire
clamping groove
self
tin
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孙更
刘安阳
张亚涛
王爱众
秦卫东
史义
赵宇
陈忠令
杜德雨
罗杨瑞
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Nanyang Power Supply Co of State Grid Henan Electric Power Co Ltd
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Nanyang Power Supply Co of State Grid Henan Electric Power Co Ltd
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Priority to CN201810858674.3A priority Critical patent/CN110783722A/zh
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    • 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
    • H01R11/05—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 having different types of direct connections
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    • 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
    • H01R11/01—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 form or arrangement of the conductive interconnection between the connecting locations
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    • 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
    • H01R4/02—Soldered or welded connections
    • H01R4/023—Soldered or welded connections between cables or wires and terminals
    • H—ELECTRICITY
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    • 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
    • H01R4/02—Soldered or welded connections
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    • 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
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    • 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
    • H01R4/184—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 comprising a U-shaped wire-receiving portion
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    • 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
    • H01R4/187—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 combined with soldering or welding
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    • 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
    • H01R4/20—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 using a crimping sleeve
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    • 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
    • H01R4/20—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 using a crimping sleeve
    • H01R4/203—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 using a crimping sleeve having an uneven wire-receiving surface to improve the contact
    • H01R4/206—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 using a crimping sleeve having an uneven wire-receiving surface to improve the contact with transversal grooves or threads
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    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/302—Clamped connections, spring connections utilising a screw or nut clamping member having means for preventing loosening of screw or nut, e.g. vibration-proof connection
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/304—Clamped connections, spring connections utilising a screw or nut clamping member having means for improving contact

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Abstract

本发明公开了一种自愈型电力线夹，包括线夹本体和接续管，所述线夹本体上设置卡线槽和连接板一，连接板一为板状，所述接续管为圆柱管，所述接续管端部设置连接板二，连接板一和连接板二上设置对应的螺栓孔，连接板一和连接板二通过螺栓和螺母固定，螺母和连接板一之间设置垫圈；连接板一上设置钻孔，钻孔内灌入锡。本发明解决了电力线夹发热问题，线夹出现松动或接触不良而发热时可自动愈合，无需停电维修，从而保证电力系统的安全稳定运行。

Description

一种自愈型电力线夹
技术领域
本发明涉及一种输电线路导线连接工具，尤其涉及一种自愈型电力线夹。
背景技术
电气设备的发热是人们在工作中经常碰到的，它不仅影响设备的正常运行，而且还会引起电气设备的绝缘老化而直接导致事故。变电运行设备发热是设备运行安全的潜在威胁。
高压线路的连接中使用的接线夹，现有T形线夹在线夹本体上设有两条相互垂直的导线槽，其中一条导线槽的上方设有压板和固定螺栓，在线夹本体的另一条导线槽的上方设有若干个平行分布的跨径式压板也称引流板，跨径式压板上设有压板螺栓用于连接线夹本体。
但是现有线夹在使用过程中由于松动、锈蚀等导致接触不良，也经常出现不正常的过热现象，发热严重时导致连接点或线夹烧断，有的引起燃弧放电，甚至烧断引线或发生相间短路，造成重大损失。
授权公告号为CN 103311685 A的中国专利文献公布了一种导线分支连接器，其包含卡线夹、卡线夹盖、分支杆、紧线螺母，其特征在于：卡线夹与分支杆成T 字形导电整体，其卡线夹内有一道嵌装电源主导线用的U 形长槽，由卡线夹盖组成其固定连接：分支线路由分支杆、分支杆内孔、分支杆稚体及其稚体爪夹片，经紧线螺母旋紧固定连接。本发明能方便、快捷地将分支导线连接到电源主导线上，并且确保其连接部位在长时间使用中，均能保持良好的导电性能，达到用电安全的目的。但是若使用过程中出现接触不良导致发热时无法自动修复，危害电力系统稳定运行。
授权公告号为CN 206180535 U的中国专利文献公布了一种T形线夹，包括线夹本体和接续管，线夹本体上设计有卡线槽和引流板，接续管上也对应设计有引流板，引流板上均设计有螺栓孔，线夹本体与接续管通过螺栓穿过寻|流板上的螺栓孔与螺母连接固定，引流板在连接安装之前通过镜床表面处理，提高对应咬合面的平整度；接续管上设计有接线孔，所述接线孔为喇叭口结构设计，该结构设计可以更方便插线操作；卡线槽上设计有插销，插销与卡线槽之间只能沿卡线槽轴向运动。但是该种线夹在使用过程中若出现接触不良导致发热时也无法自动修复，解决不了上述问题。
发明内容
有鉴于此，本发明的目的是针对现有技术的不足，提供一种自愈型电力线夹，解决了电力线夹发热问题，线夹出现松动或接触不良而发热时可自动愈合，无需停电维修，从而保证电力系统的安全稳定运行。
为达到上述目的，本发明采用以下技术方案：一种自愈型电力线夹，包括线夹本体和接续管，所述线夹本体上设置卡线槽和连接板一，连接板一为板状，所述接续管为圆柱管，所述接续管端部设置连接板二，连接板一和连接板二上设置对应的螺栓孔，连接板一和连接板二通过螺栓和螺母固定，螺母和连接板一之间设置垫圈；连接板一上设置钻孔，钻孔内灌入锡。
作为本发明的一种优选结构，卡线槽为圆管形，卡线槽外侧开口形成开口槽，导线从卡线槽中穿过。
作为本发明的一种优选结构，所述连接板一和连接板二的接触面设置成相互咬合的波纹曲面或阶梯面。
作为本发明的一种优选结构，所述垫圈为钢质弹簧垫圈。
作为本发明的一种优选结构，钻孔深度为连接板一厚度的三分之二。
作为本发明的一种优选结构，钻孔内灌入的锡的量为钻孔容量的三分之二。
作为本发明的一种优选结构，锡中含有百分之三重量的助焊剂。
作为本发明的一种优选结构，连接板二上与连接板一上的钻孔对应处设置浅孔，浅孔的深度为1毫米。
作为本发明的一种优选结构，所述连接板二上设置凹槽，所述凹槽的形状与所述连接板一和卡线槽截面的形状一致，且与卡线槽对应处设置线孔，线孔外侧开口。
作为本发明的一种优选结构，所述卡线槽内壁也设置钻孔并灌锡。
作为本发明的一种优选结构，所述接续管内壁也设置钻孔并灌锡。
作为本发明的一种优选结构，所述卡线槽和所述接续管内部设置内螺纹。
本发明的有益效果是：
1、连接板一上设置钻孔，钻孔内灌入锡，锡的熔点在232摄氏度，线夹异常发热时，温度超过锡的熔点，钻孔内的锡熔化，填充导线和线夹之间的缝隙，增大导线和线夹之间的接触面积，从而解决了接触不良现象，实现线夹的自动愈合，避免继续发热和产生进一步的破坏。
2、卡线槽为圆管形，卡线槽外侧开口形成开口槽，导线从卡线槽中穿过。传统卡线槽上设置插销块，使用时在液压钳的作用下，卡线槽和插销块共同包裹并压紧导线，但是插销块往往阻挡卡线槽的收缩，从而在导线和卡线槽或插销块之间形成空腔，影响卡线槽与导线的接触面积，本发明采用开口槽，两开口槽边之间无阻挡，收缩程度更大，可与导线更好贴合。开口槽压紧后涂覆导电膏。
3、所述连接板一和连接板二的接触面设置成相互咬合的波纹曲面或阶梯面，曲面或阶梯面的接触面积增大，减小接触不良发生的风险。
4、所述垫圈为钢质弹簧垫圈，钢质垫圈耐磨，具有良好的抗震防松效果。
5、钻孔深度为连接板一厚度的三分之二，且钻孔开口在连接板一和连接板二的接触面上，可有效防止灌锡的泄漏流失。
6、钻孔内灌入的锡的量为钻孔容量的三分之二，不将钻孔灌满，防止锡冷却后形成凸起影响连接板一和连接板二的贴合。
7、锡中含有百分之三重量的助焊剂，可去除氧化物，降低被焊接材质表面张力，使锡与连接板一和连接板二牢牢焊接。
8、连接板二上与连接板一上的钻孔对应处设置浅孔，浅孔的深度为1毫米，浅孔与钻孔位置对应，增大锡在连接板二上的附着面积和容置空间，防止锡融化后严重溢流、泄漏。
9、所述连接板二上设置凹槽，所述凹槽的形状与所述连接板一和卡线槽截面的形状一致，且与卡线槽对应处设置线孔，线孔外侧开口。连接板一和卡线槽的端面均被连接板二上的凹槽半包围，进一步增大线夹本体和接续管连接的接触面，同时凹槽结构有效保障锡在熔化时也不会从侧面渗漏。
10、所述卡线槽内壁也设置钻孔并灌锡，所述接续管内壁也设置钻孔并灌锡，作用同连接板一上的灌锡钻孔，如卡线槽或接续管与导线接触不良导致发热，将锡熔化，锡流出将卡线槽或接续管与导线接通，发热现象消失，锡将卡线槽或接续管与导线焊接在一起。
11、所述卡线槽和所述接续管内部设置内螺纹，施工时，在液压钳作用下螺纹棱齿将所述卡线槽和所述接续管内的导线咬合的更加牢固，抗拉拔能力更强。
附图说明
图1为本发明整体结构示意图；
图2为图1的左视图；
图3为本发明实施例三整体结构示意图；
图4为图3的仰视图；
图中标号：1-接续管，2-卡线槽，3-连接板一，4-连接板二，5-螺栓孔，6-螺栓，7-螺母，8-垫圈，9-钻孔，10-锡，11-浅孔，12-凹槽，13-线孔。
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。
实施例一
如图1-2所示，一种自愈型电力线夹，包括线夹本体和接续管1，所述线夹本体上设置卡线槽2和连接板一3，连接板一3为板状，所述接续管1为圆柱管，所述接续管1端部设置连接板二4，连接板一3和连接板二4上设置对应的螺栓孔5，连接板一3和连接板二4通过螺栓6和螺母7固定，螺母7和连接板一3之间设置垫圈8；连接板一3上设置钻孔9，钻孔9内灌入锡10。
本发明中，连接板一3上设置钻孔9，钻孔9内灌入锡10，锡10的熔点在232摄氏度，线夹异常发热时，温度超过锡10的熔点，钻孔9内的锡10熔化，填充导线和线夹之间的缝隙，增大导线和线夹之间的接触面积，从而解决了接触不良现象，实现线夹的自动愈合，避免继续发热和产生进一步的破坏。
卡线槽2为圆管形，卡线槽2外侧开口形成开口槽，导线从卡线槽2中穿过。传统卡线槽上设置插销块，使用时在液压钳的作用下，卡线槽和插销块共同包裹并压紧导线，但是插销块往往阻挡卡线槽的收缩，从而在导线和卡线槽或插销块之间形成空腔，影响卡线槽与导线的接触面积，本发明采用开口槽，两条开口槽边之间无插销块阻挡，收缩程度更大，可与导线更好贴合。开口槽压紧后涂覆导电膏。
本实施例中连接板一3和连接板二4的接触面设置成相互咬合的波纹曲面，曲面的接触面积增大，减小接触不良发生的风险。
垫圈8为钢质弹簧垫圈，钢质垫圈耐磨，具有良好的抗震防松效果。
钻孔9深度为连接板一3厚度的三分之二，且钻孔9开口在连接板一3和连接板二4的接触面上，可有效防止灌锡10的泄漏流失。
钻孔9内灌入的锡10的量为钻孔9容量的三分之二，不将钻孔9灌满，防止锡10冷却后形成凸起影响连接板一3和连接板二4的贴合。
锡10中含有百分之三重量的助焊剂，助焊剂为松香树脂系助焊剂，可去除氧化物，降低被焊接材质表面张力，使锡10将连接板一3和连接板二4牢牢焊接。
连接板二4上与连接板一3上的钻孔9对应处设置浅孔11，浅孔11的深度为1毫米，浅孔11与钻孔9位置对应，增大锡10在连接板二4上的附着面积和容置空间，防止锡10融化后严重溢流、泄漏。
实施例二
本实施例和实施例一的结构基本相同，其区别在于：连接板一3和连接板二4的接触面设置成相互咬合的阶梯面，阶梯面的接触面积增大，减小接触不良发生的风险；垫圈8为蝶形弹簧垫圈，具有体积小、负荷大、组合使用方便等特性。
实施例三
如图3-4所示，本实施例和实施例一的结构基本相同，其区别在于：所述连接板二4上设置凹槽12，所述凹槽12的形状与所述连接板一3和卡线槽2截面的形状一致，且与卡线槽2对应处设置线孔13，线孔13外侧开口。连接板一3和卡线槽2的端面均被连接板二4上的凹槽12半包围，进一步增大线夹本体和接续管1连接的接触面，同时凹槽12结构有效保障锡10在熔化时也不会从侧面渗漏。
实施例四
本实施例和实施例一的结构基本相同，其区别在于：所述卡线槽2内壁也设置钻孔9并灌锡10，所述接续管1内壁也设置钻孔9并灌锡10，作用同连接板一3上的灌锡10钻孔9，如卡线槽2或接续管1与导线接触不良导致发热，将锡10熔化，锡10流出将卡线槽2或接续管1与导线接通，发热现象消失，锡10将卡线槽2或接续管1与导线焊接在一起。
实施例五
本实施例和实施例一的结构基本相同，其区别在于：所述卡线槽2和所述接续管1内部设置内螺纹，施工时，在液压钳作用下螺纹棱齿将所述卡线槽2和所述接续管1内的导线咬合的更加牢固，抗拉拔能力更强。
最后说明的是，以上实施例仅用以说明本发明的技术方案而非限制，本领域普通技术人员对本发明的技术方案所做的其他修改或者等同替换，只要不脱离本发明技术方案的精神和范围，均应涵盖在本发明的权利要求范围当中。

Claims (8)

1.一种自愈型电力线夹，其特征在于：包括线夹本体和接续管，所述线夹本体上设置卡线槽和连接板一，连接板一为板状，所述接续管为圆柱管，所述接续管端部设置连接板二，连接板一和连接板二上设置对应的螺栓孔，连接板一和连接板二通过螺栓和螺母固定，螺母和连接板一之间设置垫圈；连接板一上设置钻孔，钻孔内灌入锡。
2.根据权利要求1所述的一种自愈型电力线夹，其特征在于：卡线槽为圆管形，卡线槽外侧开口形成开口槽，导线从卡线槽中穿过。
3.根据权利要求1所述的一种自愈型电力线夹，其特征在于：所述连接板一和连接板二的接触面设置成相互咬合的波纹曲面或阶梯面。
4.根据权利要求1所述的一种自愈型电力线夹，其特征在于：所述垫圈为钢质弹簧垫圈。
5.根据权利要求1所述的一种自愈型电力线夹，其特征在于：钻孔深度为连接板一厚度的三分之二。
6.根据权利要求1所述的一种自愈型电力线夹，其特征在于：钻孔内灌入的锡的量为钻孔容量的三分之二。
7.根据权利要求1所述的一种自愈型电力线夹，其特征在于：锡中含有百分之三重量的助焊剂。
8.根据权利要求1所述的一种自愈型电力线夹，其特征在于：连接板二上与连接板一上的钻孔对应处设置浅孔，浅孔的深度为1毫米。
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