CN103797656A - 用于屏蔽电线的连接结构 - Google Patents

用于屏蔽电线的连接结构 Download PDF

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CN103797656A
CN103797656A CN201280044417.7A CN201280044417A CN103797656A CN 103797656 A CN103797656 A CN 103797656A CN 201280044417 A CN201280044417 A CN 201280044417A CN 103797656 A CN103797656 A CN 103797656A
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shielding
fastening part
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wire
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古川翔一
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Yazaki Corp
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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
    • H02G15/08—Cable junctions
    • H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
    • H02G15/16—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes structurally associated with support for line-connecting terminals within the box
    • 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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/652—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding   with earth pin, blade or socket
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • 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
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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
    • H01R4/188—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 having an uneven wire-receiving surface to improve the contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0518—Connection to outer conductor by crimping or by crimping ferrule
    • 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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/6592—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded 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
    • 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
    • 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
    • H02G15/025—Cable terminations for coaxial cables or hollow conductors

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Abstract

屏蔽电线(W)的连接结构利用屏蔽紧固部(12)紧固并连接屏蔽电线(W)的屏蔽导体(32)。屏蔽紧固部(12)设置有多个孔(13)。在屏蔽紧固部(12)的电线接触面中，在孔(13)周围并且在电线拉伸方向的下侧上的区域构成了至少未受到滚花加工的非滚花面(14)的区域(S1)；和作为受到滚花加工的滚花面(15)的其他区域。

Description

用于屏蔽电线的连接结构
技术领域
本发明涉及一种用于屏蔽电线的连接结构，其中，屏蔽电线的屏蔽导体被屏蔽紧固部紧密地紧固以用于连接。
背景技术
专利文献1公开了一种屏蔽连接器，该屏蔽连接器采用传统的用于屏蔽电线的连接结构。如图1所示，屏蔽连接器50包括内壳体51、内壳体51容纳的连接端子52和覆盖内壳体51的外周的屏蔽壳60。
内壳体51由具有预定的介电常数的绝缘体形成。连接端子52包括芯线紧固部53和用于连接至对应端子的接触部54。屏蔽壳60由导电材料形成。屏蔽壳60包括覆盖内壳体51的屏蔽本体61、从屏蔽本体61向后突出的屏蔽紧固部62，和电线紧固部63。屏蔽紧固部62设置有多个孔64。
同轴屏蔽电线W1包括作为导体的芯线70、覆盖芯线70的外周的绝缘内覆盖层71、作为屏蔽导体并覆盖绝缘内覆盖层71的编织线72，和覆盖编织线72的外周的绝缘外覆盖层73。在屏蔽电线W1的末端部分处，芯线70暴露，于是，编织线72暴露。芯线70被连接端子52的芯线紧固部53紧密地紧固，用于与其连接。编织线72被屏蔽壳60的屏蔽紧固部62紧密地紧固，用于与其连接。屏蔽电线W1从绝缘外覆盖层73的顶部被屏蔽壳60的电线紧固部63紧密地紧固，并稳固地固定至该电线紧固部63。
如图2A所示，为了增强屏蔽紧固部62处的电线紧固力，需要用强的紧固力紧密地紧固编织线72。如图2B所示，如果对屏蔽紧固部62施加强的紧固力，则绝缘内覆盖层71被严重地压缩，使得芯线70可能折断。因此，存在要对屏蔽紧固部62施加的紧固力的极限。
暴露的编织线72也容易磨损。因此，需要防止编织线72的磨损。
于是，为了实现屏蔽紧固部62处的电线紧固力的增强和编织线72的磨损的防止同时并不引起芯线70折断，屏蔽紧固部62具有以下结构。
也就是说，如图3和4所示，屏蔽紧固部62设置有多个孔64。屏蔽紧固部62还具有通过滚花加工被制成为滚花面65的导体连接面。
如图4所示，在上述结构中，由于编织线72通过在屏蔽紧固部62处被紧固而承受压缩力，所以编织线72被压入到屏蔽紧固部62的孔64中的每个孔64中。即使不对屏蔽紧固部62施加强的紧固力，孔64中的每个孔64的边缘效应也使得能够获得预定水平或更高的电线紧固力(电线拉伸强度)。此外，通过滚花加工形成的凹凸面防止了编织线72的磨损。
[引证列表]
[专利文献]
[PTL1]日本专利申请特开公布No.2010-49859
发明内容
[技术问题]
然而，在上述传统示例中，如图4所示，当滚花面65的凹部65a位于每个孔64的周围时，编织线72到孔64中的实质压入量(编织线72的接合量)减小，由此，通过孔64的边缘效应减弱。因此，不能可靠地防止编织线72的磨损，并且还不能增强屏蔽紧固部62处的电线紧固力(线拉强度)。
鉴于上述情况，本发明的目的在于提供一种用于屏蔽电线的连接结构，该连接结构可靠地防止屏蔽导体的磨损，并且还增强屏蔽紧固部处的电线紧固力。
[问题的解决方案]
根据本发明的方面，提供一种用于屏蔽电线的连接结构，包括：屏蔽电线，该屏蔽电线具有屏蔽导体；和屏蔽紧固部，该屏蔽紧固部紧密地紧固屏蔽电线的屏蔽导体，使得屏蔽紧固部连接至屏蔽电线，其中，所述屏蔽紧固部设置有孔，所述屏蔽紧固部具有电线接触面，该电线接触面包括：未受到滚花加工的非滚花面，该非滚花面是在所述孔周围并且在电线拉伸方向的下侧上的区域；和受到滚花加工的滚花面，该滚花面是除在孔周围并且在所述电线拉伸方向的所述下侧上的所述区域之外的区域。
优选的是，在孔周围，在所述电线拉伸方向的上侧上的区域受到滚花加工，并且在所述电线拉伸方向的所述下侧上的区域没有受到滚花加工。
[本发明的有利效果]
根据本发明，由于屏蔽导体紧密地贴附至作为凹凸面的滚花面，所以屏蔽导体不磨损。由于屏蔽导体通过被紧固而承受压缩力，所以屏蔽导体被压入到屏蔽紧固部的孔中。由于不存在位于孔周围的滚花面的凹部，所以通过孔实现的边缘效应不减弱。因此，即使不对屏蔽紧固部施加强的紧固力，也能够获得预定水平或更高的电线紧固力(电线拉伸强度)。如上所述，能够可靠地防止屏蔽导体的磨损，并且还增强屏蔽紧固部处的电线紧固力。
附图说明
图1是传统的屏蔽连接器的横截面视图。
图2A是传统的屏蔽紧固部的横截面视图。
图2B是在传统的屏蔽紧固部内折断的芯线的横截面视图。
图3是不同的传统屏蔽紧固部和电线紧固部的展开图。
图4是不同的传统屏蔽紧固部的横截面视图。
图5A是根据本发明的示例性实施例的屏蔽连接器的透视图。
图5B是根据本发明的示例性实施例的屏蔽紧固部和电线紧固部的展开图。
图6是沿着图5A中的线A-A的横截面视图。
图7是沿着图5A中的线B-B的横截面视图。
图8是根据本发明的示例性实施例的变形例的屏蔽紧固部和电线紧固部的展开图。
[附图标记列表]
W  屏蔽电线
12、12A  屏蔽紧固部
13  孔
14  非滚花面
15  滚花面
32  编织线(屏蔽导体)
具体实施方式
将参考附图描述本发明的示例性实施例。
图5A至7示出了本发明的示例性实施例。在本实施例中，根据本发明的用于屏蔽电线的连接结构被应用于屏蔽连接器1。在图5A中，屏蔽导体1包括内壳体2、内壳体2容纳的连接端子3，和覆盖内壳体2的外周的屏蔽壳10。
内壳体2由具有预定的介电常数的绝缘体形成。连接端子3包括芯线紧固部3a和用于连接至对应端子的连接部(未示出)。
屏蔽壳10由导电材料形成。屏蔽壳10包括：箱形的屏蔽本体11，该屏蔽本体11覆盖内壳体2的除其前部和后部之外的全部区域；屏蔽紧固部12，该屏蔽紧固部12从屏蔽本体11向后延伸；和电线紧固部20。以下将详细描述屏蔽紧固部12的结构。
同轴屏蔽电线W包括作为导体的芯线30、覆盖芯线30的外周的绝缘内覆盖层31、作为屏蔽导体并覆盖绝缘内覆盖层31的编织线32，和覆盖编织线32的外周的绝缘外覆盖层33。在屏蔽电线W的末端部分处，绝缘外覆盖层33被去除预定的长度，并且绝缘内覆盖层31被去除预定的长度，使得芯线30暴露，于是编织线32暴露。暴露的芯线30被连接端子3的芯线紧固部3a紧密地紧固，用于与其连接。暴露的编织线32被屏蔽壳10的屏蔽紧固部12紧密地紧固，用于与其连接。屏蔽电线W从绝缘外覆盖层33的顶部被屏蔽壳10的电线紧固部20紧密地紧固，并稳固地固定至该电线紧固部20。
接下来，将描述屏蔽紧固部12的详细结构。如图5B所示，屏蔽紧固部12包括底壁12a和从该底壁12a的两端突出的一对带构件12b和12c。屏蔽紧固部12在沿其宽度方向的直线上以规定间隔具有多个孔13。对于多个孔13，两个孔形成在底壁12a上，并且两个孔形成在带构件12b上，该带构件12b是该对带构件12b和12c中的一个带构件。孔13中的每个孔13都形成为圆形。
屏蔽紧固部12具有导体接触面；在该导体接触面处，形成未受滚花加工的非滚花面14。非滚花面14是在每个孔13周围并且还处于电线拉伸方向P的下侧上的区域。在图5B中，为了清楚，非滚花面14的区域S1示出为被虚拟线包围的区域。屏蔽紧固部12的导体接触面还具有在其上形成的受到滚花加工的滚花面15。滚花面15是在每个孔13周围并且还处于电线拉伸方向P的上侧上的区域以及在每个孔周围的区域外侧的区域。非滚花面14是平面。滚花面15是格状形式的浅凹凸面。
如图6和7详细所示，屏蔽紧固部12紧密地紧固布置在底壁12a上的编织线32，使得该对带构件12b和12c缠绕编织线32。该对带构件12b和12c折叠，使得其中形成有两个孔13的带构件12b变成内侧，并且带构件12c变成外侧。
由于屏蔽紧固部12处的编织线32紧密地贴附至作为凹凸面的滚花面15，所以编织线32不磨损。由于编织线32通过被紧固而承受压缩力，所以屏蔽电线32被压入到屏蔽紧固部12的每个孔13中。在每个孔13的电线拉伸方向的下侧上，由于滚花面15的凸部15a(在图7中示出)并没有位于孔13中的每个孔13周围，所以通过孔13的边缘效应不减弱。因此，即使不施加强的紧固力，也能够获得预定水平或更高的电线紧固力(电线拉伸强度)。如上所述，能够可靠地防止屏蔽电线32的磨损，并且还增强屏蔽紧固部12处的电线紧固力。
非滚花面14的区域S1可以在这样的范围内：在该范围内，滚花面15的凸部15a并不形成为面对每个孔13的边缘。
屏蔽导体是编织线32，但也可以是能够获得电磁屏蔽效应的其它结构。
在本实施例中，示出了用于屏蔽电线的连接结构被应用于屏蔽连接器1的情形。然而，其能够应用于不同于屏蔽连接器1的屏蔽连接器。也就是说，其能够应用于其中屏蔽电线W的屏蔽导体(编织线32)被屏蔽紧固部12紧密地紧固以用于与其连接的部分。
(屏蔽紧固部的变形例)
图8示出了屏蔽紧固部12A的变形例。根据变形例的屏蔽紧固部12A具有在其上形成的未受到滚花加工的非滚花面14。非滚花面14是在底壁12a的两个孔13周围并且还在电线拉伸方向的下侧上的区域。屏蔽紧固部12A具有在其上形成的受到滚花加工的滚花面15。滚花面15是在带构件12b的两个孔13周围的区域。
根据该变形例，能够获得与上述实施例相似的作用和效果。
作为另一变形例，屏蔽紧固部可具有：围绕每个孔的、作为未受到滚花加工的非滚花面的所有区域；和在围绕每个孔的区域外侧的、作为受到滚花加工的滚花面的区域。

Claims (2)

1.一种用于屏蔽电线的连接结构，包括：
屏蔽电线，该屏蔽电线具有屏蔽导体；以及
屏蔽紧固部，该屏蔽紧固部紧密地紧固所述屏蔽电线的所述屏蔽导体，使得所述屏蔽紧固部连接至所述屏蔽电线，
其中，所述屏蔽紧固部设置有孔，
所述屏蔽紧固部具有电线接触面，该电线接触面包括：未受到滚花加工的非滚花面，该非滚花面是在所述孔周围并且在电线拉伸方向的下侧上的区域；和受到滚花加工的滚花面，该滚花面是除在孔周围并且在所述电线拉伸方向的所述下侧上的所述区域之外的区域。
2.根据权利要求1所述的用于屏蔽电线的连接结构，
其中，在所述孔周围，在所述电线拉伸方向的上侧上的区域受到滚花加工，并且在所述电线拉伸方向的所述下侧上的区域没有受到滚花加工。
CN201280044417.7A 2011-09-14 2012-08-03 用于屏蔽电线的连接结构 Expired - Fee Related CN103797656B (zh)

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