CN111106454B - 压接连接端子 - Google Patents

压接连接端子 Download PDF

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CN111106454B
CN111106454B CN201911030129.6A CN201911030129A CN111106454B CN 111106454 B CN111106454 B CN 111106454B CN 201911030129 A CN201911030129 A CN 201911030129A CN 111106454 B CN111106454 B CN 111106454B
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conductor
connection terminal
electric wire
crimping
pressure
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CN111106454A (zh
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安保次雄
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Delta Plus Co Ltd
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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
    • 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
    • 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
    • H01R4/185—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 combined with a U-shaped insulation-receiving portion
    • 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
    • H01R4/20—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
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/048—Crimping apparatus or processes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

本发明涉及一种导体压接部3，由上层板3a与连结上层板3a的下层板3b所构成的二层构造中的一对压接片3c、3d从底部3e的两侧U字状地立起。并且，在上层板3a和下层板3b的折返部分的内侧形成有空隙部3g。导体压接部3的压接片3c、3d作成二层构造且存在有空隙部3g，从而可弹性地固定导体部且稳固地连接。本发明以导体压接部稳固地压接固定电线的导体部以确保电性连接的可靠性。

Description

压接连接端子
技术领域
本发明涉及一种压接连接端子，内置于例如连接器壳体(connector housing)并与对象侧连接器的连接端子嵌合。
背景技术
随着近年来的电性制品的小型化、轻量化、集成化，要求使用于电路的连接的连接端子更小型化。例如，插入至对象侧连接端子的棒状的插入部，使用的是比所连接的电线的直径还小且外径为0.5mm×0.5mm左右的四角形状的插入部。此外，也有一种连接端子，使用于具有多条直径极细小的芯线的纤维电线。
[现有技术文献]
专利文献1：日本特开2017-162792号公报。
发明内容
[发明所要解决的问题]
将在纤维电线压接至连接端子的情况下，纤维电线的导体部由于在极细的纤维芯线的周围形成铜镀覆并搓合多条纤维芯线，因此导体部缺乏伸展性以及可塑性，且难以具有大幅度的可靠性以小型的连接端子连接纤维电线。在连接端子对于纤维电线的固定不充分的情况下，纤维电线容易从连接端子脱离且难以获得良好的导电性。
专利文献1为用以连接此种纤维电线的现有技术例子的一个专利文献。
本发明的目的为提供一种能解决上述课题的压接连接端子，即使是纤维电线也能够以具有独特构造的导体压接部确实地加压紧固纤维电线的导体部，从而能确保电性连接的可靠性。
[解决问题的技术手段]
为了达成上述目的，本发明的压接连接端子为将一片导电金属板冲切(punching)并弯折而形成，用以将电线加压并固定，其特征在于，在压接连接端子的前方配置有用以与对象侧连接器的连接端子连接的连接部，在压接连接端子的后方配置有导体压接部，导体压接部具有从底部U字状地立起的一对压接片并用以压接固定电线的导体部；导体压接部的压接片由下层板以及上层板所构成，上层板从下层板的端部折返并叠合至下层板上；在下层板与上层板之间的折返部分的内侧形成有空隙部。
[发明的效果]
依据本发明的压接连接端子，即使是搓合了多条芯线的纤维电线的导体部，也能以导体压接部确实地压接连接至导体，从而能获得良好的固定力与导电性。
附图说明
图1为实施方式的压接连接端子的立体图。
图2为导体压接部的横剖视图。
图3为已冲切的导电金属板的俯视图。
图4为弯折工序的过程中的导体压接部的横剖视图。
图5为将绝缘被覆部的一部分残留于前端部的状态的电线的立体图。
图6为已将电线固定的状态的压接连接端子的立体图。
图7为导体压接部对于导体部的压接过程的说明图。
图8为已将导体部固定的状态的导体压接部的横剖视图。
图9为变化例的导体压接部的横剖视图。
图10为已将导体部固定的状态的变化例的导体压接部的横剖视图。
图中：
1 连接部
2 端缘压接部
2a、2b、3c、3、4a、4b 压接片
3 导体压接部
3a 上层板
3b 下层板
3e 底部
3f 接合线
3g 空隙部
3h 间隙
4 被覆压接部
5 导电金属板
10 电线
10a 绝缘被覆部
10b 导体部
具体实施方式
依据附图的实施方式详细地说明本发明。图1为本发明的实施方式的压接连接端子的立体图。压接连接端子的厚度可为0.15mm，且由黄铜制成，且为将已于两个表面施予了铜镀覆、锡镀覆等的一片导电金属板冲切并弯曲而形成。
在压接连接端子的前部形成有连接部1，在压接连接端子的后部依序配置有端缘压接部2、导体压接部3以及被覆压接部4；连接部1例如为公型的插入部，用以与对象侧连接器的连接端子连接。
在连接部1中，做成从两侧折返导电金属板且折返片1a、1b的两端缘彼此对接的二层的公型的插入端构造。然而，连接部1也可以是公型的其他的形状或者是母型的连接部。
在端缘压接部2中，一对压接片2a、2b从底部2c的两侧朝斜上方U字状地立起。
如图2所示，在导体压接部3中，上层板3a与下层板3b所构成的层叠构造中的一对压接片3c、3d从两侧朝斜上方U字状地立起。并且，上层板3a的上端从下层板3b折返，上层板3a的端缘彼此在底部3e的中心部中对接并构成接合线3f。在压接片3c、3d的上端的上层板3a中相对于下层板3b的折返部分的内侧设置有剖面为例如水滴形状、气球形状、圆形状、椭圆形状等的空隙部3g。
与端缘压接部2同样地，在被覆压接部4中，一对压接片4a、4b从底部4c的两侧朝斜上方U字状地立起。
此外，虽然在实际的压接连接端子附设有稳定器(stabilizer)或者卡合部等，但省略这些公知机构的图示；稳定器用以使连接器壳体内的姿势稳定，卡合部用以防止连接器壳体朝前后方向脱落。
图3为在成型成压接连接端子之前已将导电金属板5冲切的状态的俯视图。
在连接部1中，为了作成二层构造的插入端，在成为下板的底部1c设置有从两侧成为上板的折返片1a、1b。
在端缘压接部2中，在底部2c的两侧伸出有成为压接片2a、2b的边部2d、2e。
导体压接部3由配置于中央的下层板3b以及连接至下层板3b的两侧的上层板3a所构成。虚线为在后述的成形冲压(forming press)中上层板3a被折返的内折线。
在被覆压接部4中，在底部4c的两侧伸出有成为压接片4a、4b的边部4d、4e。
在被覆压接部4的更后方设置有送料片(feeding piece)6，送料片6用以连结已冲切状态下所连结的压接连接端子彼此；各个压接连接端子的后端的被覆压接部4通过连结片7连接至送料片6。此外，设置于送料片6的引导(pilot)孔8在成形工序中被使用于搬运导电金属板5。
如图3所示，已冲切的导电金属板5在经过例如因应需要进行过倒角或者表面处理后，一边通过送料片6被搬运，一边在成形冲压的各个成形工序中依序地被弯折，从而形成图1所示的压接连接端子。在成形后切断连结片7，各个压接连接端子各自分离。
图4为弯折工序的过程中的导体压接部3的横剖视图，且显示压接片3c、3d被立起前的状态。在此状态中，在压接片3c、3d的前端的上层板3a中的从下层板3b的折返部分的内侧形成有空隙部3g。此外，虽然空隙部3g的形状可作成各种形状，但通常来说作成水滴形状比较容易。
图5为已将绝缘被覆部10a从导体部10b剥离状态的电线10的立体图。所使用的电线10可为例如所谓的纤维电线，对直径为20μm左右且由例如酰胺纤维丝(aramid fiberfilament)所构成的各个芯线施予铜镀覆并形成厚度1μm左右的金属镀覆，且搓合例如130条芯线。此种电线10的导体部10b的直径为例如0.3mm左右，包含有绝缘被覆部10a的电线10的外径作成0.7mm至0.8mm左右。
在导体部10b中，绝缘被覆部10a被刀具切断成圆周状并被移除，将后端部分残留于导体部10b的前端，从导体部10b伸出的前端部分被切断。因此，在露出的导体部10b的前端附设有属于绝缘被覆部10a的一部分，即为残留部10c，导体部10b不会散乱。
图6为使用电线压接装置并以图1所示的压接连接端子将图5所示的电线10压接并固定的状态的立体图。电线10的残留部10c与导体部10b一起被端缘压接部2压接固定。在导体压接部3中，压接露出于残留部10c与绝缘被覆部10a之间的导体部10b。电线10的绝缘被覆部10a被被覆压接部4压接并固定。
此外，关于将电线10压接后的压接连接端子的各部位的示例性的尺寸，端缘压接部2的宽度a为0.9mm左右，高度b为1.2mm左右，导体压接部3的宽度c为1.0mm左右，高度d为0.75mm左右，长度e为4.5mm左右，被覆压接部4的宽度f为1.1mm左右，高度g为1.5mm左右。
如图7的剖视图所示，在电线压接装置对于导体部10b的压接过程中，在导体部10b已被插入至导体压接部3的一对压接片3c、3d之间的状态下，通过冲压(press)上模具Pu与冲压下模具Pd将压接片3c、3d的上端彼此封闭且压紧，从而通过压接片3c、3d以围绕的方式将导体部10b加压紧固。
由于压接片3c、3d作成两片上层板3a与下层板3b重叠的二层构造且具有有助于弹性的空隙部3g，因此压接片3c、3d具有大的弹力。并且，如图8所示，当施加有冲压上模具Pu与冲压下模具Pd的强力的压接力时，经由压接片3c、3d对导体部10b赋予弹性的变形，空隙部3g本体也被扁平地缩小，导体部10b被无间隙且稳固地紧固而被固定。此时，由于接触至导体部10b的上层板3a被下层板3b围绕并被压缩，因此产生厚度变大的变形而充分地密接至导体部10b。
如此，依据适合于纤维电线用的本实施方式的压接连接端子，能以二层构造且具备有空隙部3g的压接片3c、3d弹性地且确实地将搓合了多条的导体部10b加压连接。
在被覆压接部4中，以一对压接片4a、4b加压紧固电线10的绝缘被覆部10a的外侧，藉此被覆压接部4的边部4d、4e以嵌入至绝缘被覆部10a的方式被压接。如此，能将绝缘被覆部10a固定并能对抗作用于电线10的拉拔力。
图9显示导体压接部3的变化例，在底部3e中的上层板3a的端缘彼此的对接部分形成有间隙3h。
图10为以导体压接部3将导体部10b加压紧固状态的剖视图。导体部10b的一部分以也进入至间隙3h内的方式变形，导体压接部3对于导体部10b的固定变得更稳固，电性特性也变得良好。

Claims (4)

1.一种压接连接端子，由将一片导电金属板冲切并弯折而形成，用以将电线加压并固定，其特征在于，在所述压接连接端子的前方配置有用以与对象侧连接器的连接端子连接的连接部，在所述压接连接端子的后方配置有导体压接部，所述导体压接部具有从底部U字状地立起的一对压接片并用以压接固定所述电线的导体部；
一对所述压接片各自由下层板以及上层板所构成，所述上层板从所述下层板的端部折返并叠合至所述下层板上，在所述下层板与所述上层板之间的折返部分各自形成有用以使一对所述压接片具有弹力的空隙部；
在所述电线的导体部插入且压接在一对所述压接片之间时，各个所述空隙部各自被扁平地缩小而无间隙且稳固地紧固所述导体部。
2.如权利要求1所述的压接连接端子，其特征在于，所述空隙部的剖面形状为水滴形状、气球形状、圆形状、椭圆形状中的任一个。
3.如权利要求1或2所述的压接连接端子，其特征在于，所述电线为纤维电线。
4.如权利要求1或2所述的压接连接端子，其特征在于，在所述下层板上的所述上层板的端缘彼此的对接部分设置有间隙。
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