CN103620871A - 包括边界压接部的电连接端子 - Google Patents

包括边界压接部的电连接端子 Download PDF

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CN103620871A
CN103620871A CN201280029835.9A CN201280029835A CN103620871A CN 103620871 A CN103620871 A CN 103620871A CN 201280029835 A CN201280029835 A CN 201280029835A CN 103620871 A CN103620871 A CN 103620871A
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pressure contact
contact portion
conductor
electric wire
coating
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松下浩一郎
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Yazaki Corp
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/10Electrically-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
    • H01R4/18Electrically-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
    • H01R4/20Electrically-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
    • H01R4/203Electrically-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
    • H01R4/206Electrically-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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/10Electrically-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
    • H01R4/18Electrically-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
    • H01R4/183Electrically-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
    • H01R4/184Electrically-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
    • H01R4/185Electrically-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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04Apparatus 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
    • H01R43/048Crimping apparatus or processes
    • H01R43/0488Crimping apparatus or processes with crimp height adjusting means
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5216Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins

Abstract

一种电连接端子(1)包括:接触部(3),用于电连接到对侧端子;以及与接触部形成的压接部(11),压接该压接部(11)从而覆盖被覆电线(5)的导体(7)和被覆(9)。压接部包括:导体压接部(13),围绕导体紧密装接并且压接该导体压接部;被覆压接部(15),围绕被覆电线的被覆紧密装接并且压接该被覆压接部(15);以及边界压接部(19),围绕被覆与导体之间的边界(17)附近紧密装接并且压接该边界压接部(19)。在围绕被覆电线被压接的状态下,边界压接部的压缩比设定得高于被覆压接部的压缩比。

Description

包括边界压接部的电连接端子
技术领域
本发明涉及一种连接到被覆电线的电连接端子。
背景技术
公知的电连接端子通常具有:接触部,该接触部要电连接到对侧端子;以及电线压接部,该电线压接部是与接触部成一体的压紧区,并且围绕被覆电线的导体和被覆压接,以电连接并且固定到被覆电线。例如,日本未审查专利申请公开No.2010-15915描述了一种电连接端子。
该电连接端子包括:接线管,该接线管围绕被覆电线的导体压接电线压接部;绝缘管,该绝缘管压接被覆电线的被覆;以及接续壁,该接续壁使接线管和绝缘管互相连接。
当在被覆电线的端部压接电线压接部时,接续壁防止被覆电线的导体在接线管与绝缘管之间暴露在外,从而抑制导体的电解腐蚀。
发明内容
技术问题
然而,当围绕被覆电线压接压接部时,上面提到的电连接端子在接续壁位置处在压接部与被覆电线之间形成间隙。该间隙可能使水等进入。
本发明提供一种电连接端子,能够防止在压接部与被覆电线之间形成间隙,并且提高防水性。
问题的解决方案
根据本发明的技术方面,提供了一种电连接端子,包括:接触部,该接触部要电连接到对侧端子;以及压接部,该压接部与所述接触部一体地形成,该压接部被压接以覆盖被覆电线的导体和被覆,从而被电连接并且固定到所述被覆电线。所述压接部包括:导体压接部,围绕所述被覆电线的所述导体紧密装接并且压接该导体压接部;被覆压接部,围绕所述被覆电线的所述被覆紧密装接并且压接该被覆压接部;以及边界压接部,围绕所述被覆电线的所述被覆与所述导体之间的边界附近紧密装接并且压接该边界压接部。在围绕所述被覆电线被压接的状态下,所述边界压接部的压缩比设定得高于所述被覆压接部的压缩比。
附图说明
图1是根据本发明实施例的电连接端子的透视图。
图2是根据本发明实施例的电连接端子的截面图。
图3(a)是根据本发明实施例的电连接端子的导体压接部的截面图,图3(b)是根据本发明实施例的电连接端子的边界压接部的截面图,并且图3(c)是根据本发明实施例的电连接端子的被覆压接部的截面图。
具体实施方式
将参考图1至3,说明根据本发明实施例的电连接端子。
根据该实施例的电连接端子1包括:接触部3,该接触部3要电连接到对侧端子(未示出);以及压接部11,该压接部11与接触部3一体地形成并且压接该压接部11,以覆盖被覆电线(电缆)5的导体7和被覆9,从而电连接并且固定到被覆电线5。
压接部11包括:导体压接部13,围绕被覆电线5的导体7紧密装接并且压接该导体压接部13;被覆压接部15,围绕被覆电线5的被覆9紧密装接并且压接被覆压接部15;以及边界压接部19,围绕被覆电线5的被覆9与导体7之间的边界17附近紧密装接并且压接该边界压接部19。
设定边界压接部19,以使压接被覆电线5的压缩比高于被覆压接部15的压缩比。
压接部11形成为使得被覆电线5的被覆9被压接的部分的纵向长度Li大于导体压接部13的长度Lc。
此外,压接部11在被覆压接部15的端部处设置有锥斜部21,以形成向着导体7的向下斜面。
此外,在压接部11的导体压接部13的端部处,存在用于密封压接部11的内部的密封件23。
如图1至3所示,电连接端子1具有接触部3和压接部11。接触部3是筒状阴模,以容纳对侧端子,即阳摸端子(未示出)的接头,使得对侧端子和电连接端子1互相电连接。接触部3与压接部11为一体。
压接部11具有底壁25和一对侧壁27。底壁25是接续到接触部3的部件,并且在电连接端子1的纵向上延伸。底壁25布置于被覆电线5的导体7和被覆9的下面。底壁25的每个宽度方向侧都设置有侧壁27。
该对侧壁27分别是接续到底壁25的宽度方向侧的部件。在利用具有上模和下模的夹具(未示出)去除被覆9而使导体7露出的被覆电线5的端部处,压接该对侧壁27。
该对侧壁27包括:导体压接部13,围绕被覆电线5的导体7紧密装接并且压接该导体压接部13;被覆压接部15,围绕被覆电线5的被覆9紧密装接并且压接该被覆压接部15;以及边界压接部19,围绕被覆电线5的被覆9与导体7之间的边界17附近紧密装接并且压接该边界压接部19。因此,该对侧壁27的内表面紧密装接到从被覆电线5的导体7到被覆9的整个区域。
导体压接部13紧密装接到被覆电线5的导体7,以将被覆电线5和电连接端子1互相电连接。将导体压接部13对于导体7的压缩比设定得高于被覆压接部15和边界压接部19的压缩比。即,在压接部11中,将导体压接部13对于压紧压力的压缩比设定到最高。这样抑制水等从导体压接部13侧渗入压接部11。
被覆压接部15紧密装接到被覆电线5的被覆9,以将电连接端子1固定到被覆电线5。将被覆压接部15对于被覆9的压缩比设定得小于导体压接部13和边界压接部19的压缩比。即,在压接部11中,将被覆压接部15的压缩比设定为最低。将被覆压接部15的压缩比设定到水等不能渗入被覆压接部15与被覆9之间的程度,并且将电线连接端子1固定到被覆电线5。
边界压接部19紧密装接到被覆电线5的被覆9与导体7之间的边界17附近,以防止在压接部11与被覆电线5之间形成间隙。将边界压接部19对于边界17附近的压缩比设定得大于被覆压接部15的压缩比。因此,将被覆9在边界压接部19处的外径收紧并且缩小得小于被覆9在被覆压接部15处的外径,使得在边界压接部19与被覆电线5之间不形成间隙,并且水不渗入该位置。
在该压接部11中,将用于压接被覆电线5的被覆9的那部分的纵向长度Li设定得大于导体压接部13的长度Lc。即使水从被覆压接部15的端部进入压接部11中,因为到导体7的距离长,所以仍抑制水到达导体7。
在被覆压接部15的端部,存在锥斜部21,以向着导体7形成向下斜面。当围绕被覆电线5压接压接部11时,锥斜部21防止被覆压接部15的端部刺穿并且破坏被覆9。
在该压接部11中,导体压接部13的端部设置有密封件23,以密封压接部11的内部。
密封件23是绝缘材料或者导电材料。绝缘材料可以是合成橡胶、紫外线固化树脂等。如果密封件23由合成橡胶制成,则将橡胶形成为帽状。在围绕被覆电线5压接压接部11之前,将合成橡胶设定到被覆电线5的导体7的末端。在这种状态下,将压接部11设定在被覆电线5上,并且利用夹具压接压接部11,以使导体压接部13的末端覆盖合成橡胶。用作密封件23的合成橡胶紧密装接到导体7的外周面和导体压接部13的内周面,从而密封压接部11的内部。
如果将紫外线固化树脂用作密封件23,则围绕被覆电线5压接压接部11,并且将紫外线固化树脂涂敷到导体压接部13的末端,以使树脂覆盖导体7并且密封导体压接部13的末端。然后,施加紫外线,以固化紫外线固化树脂。用作密封件23的紫外线固化树脂防止导体7露到外部,并且该密封件23紧密装接到导体压接部13的前端面,从而密封压接部11的内部。
这样,由绝缘材料制成的密封件23增强了密封件23、导体7以及压接部11之间的紧密接触,改善密封性能,并且防止水等进入压接部11。
当由导电材料形成密封件23时,导电材料可以是焊料、低熔点金属片等。当焊料用作密封件23时,围绕被覆电线5压接压接部11,并且布置焊料,以在导体压接部13的末端覆盖并且密封导体7。然后,使焊料硬化。用作密封件23的焊料防止导体7露到外部,紧密装接到导体压接部13的前端面,并且密封压接部11的内部。
当将低熔点金属片用作密封件23时,布置低熔点金属片,以在围绕被覆电线5压接压接部11之前,覆盖被覆电线5的导体7。在这种状态下,将被覆电线5布置在压接部11中,并且在对压接部11施加预定压力或者热量的同时,利用夹具压接压接部11,从而利用导体压接部13的前端覆盖低熔点金属片。用作密封件23的低熔点金属片在较低温度熔融,紧密装接到导体7和导体压接部13的前端面,并且密封压接部11的内部。
这样,导电材料的密封件23防止水等渗入压接部11中,并且增大了被覆电线5的导体7与压接部11之间的接触面积。
根据上述电连接端子1,围绕导体7将压接部11紧密装接并且压接到被覆电线5的被覆9,从而防止在压接部11与被覆电线5之间形成可能使水等渗入的间隙。
将处于围绕被覆电线5压接状态下的边界压接部19的压缩比设定得大于被覆压接部15的压缩比。即使水等从被覆压接部15进入,边界压接部19仍防止水等渗入,从而防止导体7等受到水等的腐蚀。
这样,上述电连接端子1能够防止在压接部11与被覆电线5之间形成渗水间隙,从而提高防水性并且抑制被覆电线5的导体7腐蚀。
在压接部11中,围绕被覆电线5的被覆9被压接的部分的纵向长度Li设定得大于导体压接部13的长度Lc。即使水从被覆压接部15的端部进入压接部11,因为到导体7的距离长,水仍难以到达导体7,从而防止水等弄湿导体7。
在被覆压接部15的端部处,压接部11设置有锥斜部21,以向着导体7形成向下斜面。当围绕被覆电线5压接压接部11时,锥斜部21防止被覆压接部15的端部破坏被覆9,从而保护被覆电线5。
在压接部11中,导体压接部13的端部设置有密封件23,以防止水等从导体压接部13的端部进入导体7,从而防止导体7的腐蚀。
当围绕被覆电线5压接压接部11时,在密封件23布置于压接部11的导体压接部13的端部的情况下,因为同时执行压接压接部11和布置密封件23,所以能够减少工序的数量。
如果密封件23是绝缘材料,则可以利用诸如合成树脂这样的高防水材料防止水等渗入压接部11,并且进一步改善防水性。
如果密封件23是绝缘材料,则可以选择紫外线固化树脂。在这种情况下,在施加紫外线之前,布置紫外线固化树脂,以覆盖导体7,然后,对紫外线固化树脂施加紫外线,以使紫外线固化树脂硬化并且密封压接部11的导体压接部13的端部。即使压接部11的导体压接部13具有复杂形状,仍能够密封压接部11的内部。
如果密封件23由导电材料制成,则导电材料将增大被覆电线5的导体7与导体压接部13之间的接触面积,并且改善被覆电线5与电连接端子1之间的导电性。
如果密封件23由导电材料制成并且如果导电材料是低熔点金属,则当压接压接部11时,对压接部11施加较低温度的热或者压力,以使低熔点金属熔融,从而覆盖导体7。这样增大了导体7与导体压接部13之间的接触面积,并且密封导体压接部13的端部。
尽管根据本发明实施例的电连接端子是具有筒状接触部的阴端子,但是也可以是具有用作接触部的接头的阳端子。
根据环境正确选择密封件的材料和形状,并且密封件的材料和形状并不局限于上述材料和形状。
本发明具有提供防止在压接部与被覆电线之间形成间隙并且改善防水性的电连接器端子。
(美国指定)
结合美国指定,该国际专利申请根据35U.S.C.119(a)要求2011年6月20日提交的日本专利申请No.2011-136542的优先权,在此通过引用合并该日本专利申请的全部内容。

Claims (4)

1.一种电连接端子,包括:
接触部,该接触部要电连接到对侧端子;以及
压接部,该压接部与所述接触部一体地形成,该压接部被压接以覆盖被覆电线的导体和被覆,从而被电连接并且固定到所述被覆电线,
其中,
所述压接部包括:
导体压接部,围绕所述被覆电线的所述导体紧密装接并且压接该导体压接部;
被覆压接部,围绕所述被覆电线的所述被覆紧密装接并且压接该被覆压接部;以及
边界压接部,围绕所述被覆电线的所述被覆与所述导体之间的边界附近紧密装接并且压接该边界压接部;并且
在围绕所述被覆电线被压接的状态下,将所述边界压接部的压缩比设定得高于所述被覆压接部的压缩比。
2.根据权利要求1所述的电连接端子,其中,
所述压接部形成为使得所述被覆电线的所述被覆的被压接的部分的纵向长度大于所述导体压接部的长度。
3.根据权利要求1或2所述的电连接端子,
其中,所述压接部在所述被覆压接部的端部处设置有锥斜部,以向着所述导体形成向下斜面。
4.根据权利要求1或2所述的电连接端子,
其中,在所述压接部的所述导体压接部的端部处布置密封件,用于密封所述压接部的内部。
CN201280029835.9A 2011-06-20 2012-06-19 包括边界压接部的电连接端子 Pending CN103620871A (zh)

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