CN101682136B - 板卡边缘电缆连接器 - Google Patents

板卡边缘电缆连接器 Download PDF

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CN101682136B
CN101682136B CN2008800188174A CN200880018817A CN101682136B CN 101682136 B CN101682136 B CN 101682136B CN 2008800188174 A CN2008800188174 A CN 2008800188174A CN 200880018817 A CN200880018817 A CN 200880018817A CN 101682136 B CN101682136 B CN 101682136B
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electric connector
circuit board
contact
printed circuit
pcb
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CN101682136A (zh
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马修·E·莫斯托勒
克里斯托弗·G·戴利
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TE Connectivity Corp
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Tyco Electronics Corp
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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
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits
    • 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
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/112—Resilient sockets forked sockets having two legs
    • 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
    • H01R4/02—Soldered or welded connections
    • H01R4/027—Soldered or welded connections comprising means for positioning or holding the parts to be soldered or welded
    • 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
    • H01R4/186—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 using a body comprising a plurality of cable-accommodating recesses or bores
    • 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
    • H01R4/188—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
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/515—Terminal blocks providing connections to wires or cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/592—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connections to contact elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/79—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures connecting to rigid printed circuits or like structures

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Abstract

一种用于连接电缆(30)到板卡边缘接口(24)的电连接器(10)，具有壳体部分(16)。壳体部分(16)具有第一表面和与第一表面相对的第二表面，所述表面间隔开以限定用于板卡边缘接口(24)的壳体部分缝槽。分叉接触元件(14)布置在壳体(16)内。每个接触元件(14)具有带裸露的接触界面部分的第一叉齿部分(18)、第二叉齿部分(20)、连接第一和第二叉齿部分(18，20)的连接板部分(22)以及用于端接电缆(30)的导体的缆线端接部分(28)。第一和第二叉齿部分(18，20)安置在壳体部分(16)内，具有用于与板卡边缘接口(24)的各自的接触表面配合的裸露的接触界面。

Description

板卡边缘电缆连接器
技术领域
本发明涉及一种电缆电连接器，更具体地，涉及一种用于连接多导体电力电缆或者信号电缆到印刷电路板(PC板)的边缘的电连接器。
背景技术
连接器组件要求在例如计算机、打印机、辅助硬件等部件之间提供电力或者电气或者电子控制信号。通常，这些部件包含面板件，例如PC板，其组装有小型元件以提供期望的电气控制。通常，连接器组件包括从壳体延伸的电触头，所述壳体与面板件的一端相邻固定。配合的连接器组件配置为用于接收连接器组件。部件的运行可靠性直接受连接的完好性的影响。也就是，如果在触头之间存在不良的电连接，部件不能如期望地进行操作。在一些应用中，例如在PC板包含高功率的发光二极管(LED)的情形中，PC板和相关的触头遭受高温，从而使得金属连接器部件应力松弛。连接器部件的应力松弛通过产生触头间断性断开以及减小施加到电接触点的正交力而使得问题进一步加剧。
待解决的问题是需要一种板卡边缘电缆连接器，其满足这些要求的一个或多个，或者提供其它有利特征。其它特征和优点将从本描述变得明显。公开的教导延伸到落在权利要求的范围内的那些实施例，而不管它们是否实现上述要求的一个或多个。
发明内容
解决方案通过用于连接缆线或者电缆到板卡边缘接口的电连接器提供。电连接器具有壳体部分。壳体部分具有第一表面以及与所述第一表面相对的第二表面。第一和第二表面间隔开以限定一缝槽。多个分叉的接触元件布置在壳体内。每个接触元件具有包括接触界面部分的第一叉齿部分、与第一叉齿部分间隔开的第二叉齿部分、在一端连接第一和第二叉齿部分的连接板(web)部分以及连接到连接板部分用于端接电缆导线的缆线端接部分。第一和第二叉齿部分限定对应壳体部分缝槽的开口凹陷，并安置在壳体部分内，裸露接触界面用于与板卡边缘接口、通过壳体部分形成的缝槽以及接收板卡边缘接口的接触元件的各自的接触表面配合。
本发明的其它特征和优点将从下面结合附图对优选实施例的详细描述变得明显，其通过例子示出本发明的原理。
附图说明
本申请将从下面结合附图的详细描述得到更完全的理解，其中相同的附图标记表示相同的部件，其中：
图1是板卡边缘电缆连接器和PC板的透视图。
图2是沿着图1的线2-2剖开的连接器的截面视图。
图3是连接器的接触部分的端视图。
图4是示出印刷电路板制动器锁扣的部分截面视图。
图5是连接器的透视图。
图6是单个接触元件的视图。
图7是沿着图6的线7-7剖开的接触部分的端视图。
图8是通过连接器的截面视图。
图9是连接器和PCB的透视图。
图10是接合PCB的连接器壳体的截面视图。
图11是插入到接触端子的缆线的部分透视图。
图12是焊接在接触端子内的缆线的部分透视图。
具体实施方式
首先参照图1和2，示出板卡边缘电缆连接器10和印刷电路板(PCcard)12。电接触部件14插入在壳体部分16中。壳体16是电绝缘材料。可以采用高温树脂用于将连接器10暴露到高温的应用场合，例如，如果印刷电路板12的部件包括高温LED，或者如果板卡或者印刷电路板基板具有用于热散逸的铝芯。
分叉接触元件14包括上叉齿部分18和下叉齿部分20。上叉齿部分18和下叉齿部分20在一端通过连接板部分22相连。新颖的分叉设计提供高的正交接触力，用于可靠且稳定地连接到印刷电路板12的电镀(plated)触头24，同时保持紧的触头-触头中心线或者斜度(pitch)。连接板部分22提供在上下叉齿部分18、20的相交部分处的加强结合，其抵抗由于热和机械所致的应力引起的金属变形，如下面更加详细地描述的。电镀界面(platedinterface)26对准电镀印刷电路板触头24。触头基础材料可以是高温铜合金，例如磷青铜、铍铜或者具有耐应力松弛的类似铜合金，如本领域技术人员熟知的。在与叉齿18、20相对的末端处，缆线端接部分28布置在接触元件14上。缆线30具有绝缘夹套，其一部分从末端剥皮用于将缆线电连接到缆线端接部分28。缆线30可以钎焊、熔接或者卷曲到缆线端接部分28中。
壳体用以从电路板12的底部和边缘绝缘分叉接触部分的下叉齿20。壳体16的绝缘层36提供下叉齿20与印刷电路板12的电绝缘。在一个实施例中，印刷电路板12具有用于提高热散逸特征和刚度的铝芯。或者，印刷电路板12可包括传统的环氧树脂基板。
图3是连接器10的接触部分的配合端视图。前端50具有缝槽52，缝槽52具有基本等于或者稍微大于印刷电路板12基板厚度的宽度，以使得连接器10以与接触界面26干涉配合的方式接合印刷电路板12。与缝槽52的任一侧相邻的相对表面54、56从前表面50处较宽的尺度到在缝槽52后部的较窄尺度逐渐成锥形，以有利于连接器10和印刷电路板12的接合，并防止当将其连接在一起时的干涉。同样示出的是接触界面26，其从顶部部分60向下突起到缝槽52中，以接合电镀触板24(例如，参见图2)。制动器锁扣32与连接器的前边缘50相邻布置。
接着参照图4和5，在连接器10的一个实施例中，制动器锁扣32接合定位在印刷电路板12中的开口34。开口34和制动器锁扣32提供壳体部分16和印刷电路板12之间的保持固定。制动器锁扣32提供额外的连接器10保持力到印刷电路板12，其补充摩擦保持力，这通过接触元件14与印刷电路板触板24接合的正交力施加。可以相对于印刷电路板12以预定斜度设置触头用于对准印刷电路板12。
图6是远离连接器壳体16的接触元件的单独的视图。接触元件14可配置为具有缝槽38，该缝槽38具有限定第二缝槽42的突起40。接触元件14通过制动器70保持在壳体内。连接板部分22连接叉齿18、20，通过足够的截面积以防止叉齿18、20的有角度的折曲和应力松弛。接触导沟66(例如，参见图8)同样限制叉齿18、20的有角度的弯曲在导沟66的宽度之内。叉齿18、20、接触界面26、突起40、缆线端接部分28、缝槽38、第二缝槽42以及接触元件14的其它特征可以由铜或者铜合金的平的金属条冲压而成，如上所述。
参照图7，接触部分14的端视图示出形成在缆线端接部分中的交错的杆部分44、46以提供开口或者焊接坑48用于将剥皮的缆线末端78插入缆线端接部分28，其中缆线末端通过焊接材料(由阴影84表示)被焊接到缆线端接部分28。在一个实施例中，交错杆44、46向外形成在接触部分的中心线的相对侧上以允许缆线在插入时与接触部分14的中心线对准。
接着参照图8，通过连接器10的截面视图示出接合壳体部分16的架部分62的接触制动器70。接触部分14的交错的杆部分44、46通过架部分62从制动器部分70间隔开。当接触部分14完全插入到导沟66中时架部分62将接触部分14锁扣到壳体部分16中。突起40邻接与架部分62相对的导沟66，以限制接触部分14在壳体部分16中的穿插。
接着参照图9和10，在一个实施例中，对准缝槽72、74可布置在PCB或者配合的电缆连接器12上来对准。当连接器10与PCB12耦合在一起时，如箭头76所表示的，壳体壁64接合对准缝槽72以将其彼此对准，并保证正确的极性。第二对准缝槽72可设置在连接器的相对末端处，用于接合壳体壁64。如果制动器部分32用于防止壳体部分16从PCB 12退出的话，该对准可以通过开口34进一步保证。
接着参照图11和12，在一个实施例中，有用于焊接坑48的新颖的构型，其提供焊接连接(由阴影84表示)，允许焊接连接具有窄的剖面，从而使得能够具有较小的连接器10，或者跨过连接器10的宽度的增加数量的缆线。缆线30包括围绕导体芯78的夹套80。夹套80在末端部分88处从芯78剥离，然后芯78插入到焊接坑48中，如箭头82所示的，焊接坑48限定在相对的杆部分44和46之间。缆线通过杆部分44和46以及焊接坑48大致保持在接触部分14的轴心或者中心线处。芯78可插入到焊接坑48中并通过传统的焊接装置进行焊接。可选地，芯48可预涂有锡或者锡合金层用来当被加热以将缆线芯78接合到接触部分14时再次溶流(re-flow)。

Claims (15)

1.一种用于连接电缆(30)到板卡边缘接口(24)的电连接器，包括：
壳体部分(16)，其具有第一表面(54)和与所述第一表面(54)相对的第二表面(56)，所述第一和第二表面(54，56)间隔开以限定缝槽(52)；以及
多个分叉接触元件(14)，其布置在所述壳体(16)内；
每个分叉接触元件(14)具有：
具有接触界面部分的第一叉齿部分(18)、与所述第一叉齿部分(18)间隔开的第二叉齿部分(20)、在一端连接所述第一和第二叉齿部分(18，20)的连接板部分(22)以及连接到所述连接板部分(22)用于端接所述电缆(30)的导体(78)的缆线端接部分(28)；
其中所述第一和第二叉齿部分(18，20)限定对应所述壳体部分(16)的所述缝槽(52)的开口凹陷，并安置在所述壳体部分(16)内，所述接触界面(26)裸露用于与所述板卡边缘接口(24)的各自的接触表面配合，所述缝槽(52)由所述壳体部分(16)形成，并且接触元件(14)接收所述板卡边缘接口(24)，并且
其中在所述缆线端接部分(28)中形成有交错的杆部分(44、46)用于将所述电缆(30)的导体(78)插入缆线端接部分(28)。
2.如权利要求1所述的电连接器(10)，其中，所述壳体部分(16)还包括布置在所述壳体部分缝槽(52)和所述第二叉齿部分(20)之间的绝缘部分(36)以隔离所述第二叉齿部分(20)与所述板卡边缘接口(24)的电接触。
3.如权利要求1所述的电连接器(10)，其中，所述接触元件(14)施加正交接触力用于稳定到印刷电路板(12)的所述板卡边缘接口(24)的连接。
4.如权利要求1所述的电连接器(10)，其中，所述连接板部分(22)在所述第一和第二叉齿部分(18，20)之间提供加强的结合。
5.如权利要求1所述的电连接器(10)，所述接触元件(14)还包括制动器元件(70)，所述壳体部分(16)具有多个导沟(66)用于对准所述多个接触元件(14)，并且所述壳体部分(16)还包括与所述多个导沟的每个导沟相关的架部分(62)用于接合各自的制动器元件(70)。
6.如权利要求1所述的电连接器(10)，其中，所述多个接触元件的每个接触元件(14)耐金属变形。 
7.如权利要求1所述的电连接器(10)，其中，每个接触元件(14)是电镀金属，并配置在所述壳体部分(16)中，其裸露用于与所述板卡边缘接口(24)的各自的电镀金属接触表面的配合。
8.如权利要求6所述的电连接器(10)，其中，所述接触元件(14)是高温铜合金。
9.如权利要求1所述的电连接器(10)，其中，所述缆线端接部分(28)可通过钎焊、熔接或者卷曲到所述导体(78)而电连接到所述导体(78)。
10.如权利要求1所述的电连接器(10)，还包括与所述板卡边缘接口(24)相关联的印刷电路板(12)，其中所述印刷电路板(12)包括铝芯用于提高热散逸特征和刚性。
11.如权利要求1所述的电连接器(10)，还包括连接于所述板卡边缘接口(24)的印刷电路板(12)，其中所述印刷电路板(12)包括传统的环氧树脂基板。
12.如权利要求1所述的电连接器(10)，其中，所述壳体部分缝槽(52)尺寸大致等于或者稍微小于所述板卡边缘接口(24)的厚度，并配置为使得所述连接器接合印刷电路板(12)。
13.如权利要求1所述的电连接器(10)，其中，所述第一和第二表面(54，56)还包括从所述缝槽(52)的前表面向着所述缝槽(52)的后部呈锥形的部分，用于使得所述连接器接合印刷电路板(12)。
14.如权利要求1所述的电连接器(10)，还包括与所述板卡边缘接口(24)相关联的印刷电路板(12)，其中所述壳体部分(16)还包括至少一个壁部分，所述印刷电路板在其边缘表面上具有至少一个开口，该开口能够与所述至少一个壁部分配合，其中所述至少一个壁部分配置成保证所述壳体(16)和所述印刷电路板边缘的极性和对准。
15.如权利要求1所述的电连接器(10)，其中，所述第二表面(56)还包括布置用于接合定位在与所述板卡边缘接口(24)相关联的印刷电路板(12)中的开口(34)的制动器锁扣(32)，用于使得所述接触元件(14)对准所述接触表面。 
CN2008800188174A 2007-06-06 2008-06-05 板卡边缘电缆连接器 Expired - Fee Related CN101682136B (zh)

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US11/758,699 US7470160B1 (en) 2007-06-06 2007-06-06 Card edge cable connector
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PCT/US2008/007056 WO2008153889A1 (en) 2007-06-06 2008-06-05 Card edge cable connector

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US7470160B1 (en) 2008-12-30
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CA2687719A1 (en) 2009-12-18
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US20080305651A1 (en) 2008-12-11

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