CN1310378C - 电接线端子 - Google Patents

电接线端子 Download PDF

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CN1310378C
CN1310378C CNB021055955A CN02105595A CN1310378C CN 1310378 C CN1310378 C CN 1310378C CN B021055955 A CNB021055955 A CN B021055955A CN 02105595 A CN02105595 A CN 02105595A CN 1310378 C CN1310378 C CN 1310378C
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hole
test plug
terminal
lead
connecting terminals
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CN1384562A (zh
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J·布兰德
O·兰格
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Phoenix Contact GmbH and Co KG
Phoenix Electric Manufacturing Co
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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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/48275—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end with an opening in the housing for insertion of a release tool
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/484—Spring housing details
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4811—Spring details
    • H01R4/4816—Spring details the spring shape preventing insertion of the conductor end when the spring is unbiased
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/484—Spring housing details
    • H01R4/4842—Spring housing details the spring housing being provided with a single opening for insertion of a spring-activating tool
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4846—Busbar details
    • H01R4/485—Single busbar common to multiple springs
    • 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
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S439/00—Electrical connectors
    • Y10S439/912—Electrical connectors with testing means

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Abstract

示出和说明了一种电接线端子，特别是一种接线盒，其具有：一个端子外壳(3)，至少一设置在其中的导线连接元件，特别是一弹簧端子(4)，和至少一电流母线(5)，其中端子外壳具有至少一用于引入待连接的电导线的导线引入孔(6)，至少一用于引入打开弹簧端子(4)所需的操作工具的操作孔(7)和至少一用于***检测插头(13)的检测插头孔(8)。因为检测插头孔与中心平面(M)侧向错开布置在操作孔(7)的一旁，故该电接线端子一方面允许实现检测分接，另一方面只具有很小的结构尺寸。

Description

电接线端子
技术领域
本发明涉及一种电接线端子，特别是一种接线盒，其具有一端子外壳、至少一设置在其中的导线连接元件，特别是一弹簧端子，和至少一电流母线，其中端子外壳具有：至少一用于引入待连接的电导线的导线引入孔、至少一用于引入打开弹簧端子的操作工具的操作孔和至少一用于***检测插头的检测插头孔。
背景技术
电接线端子，特别是接线盒，几十年来就是众所周知的，并在电气设备和装置的布线中广泛应用。端子通常被固定在汇流排上，这些汇流排自身通常为数众多，并都布置在一配电柜中。接线盒中所用的导线连接元件主要是螺纹端子或弹簧端子。弹簧端子的接线原理与螺纹端子的相似。在使用螺纹端子的情况下，牵引套筒借助对端子螺纹的操作将导线引向电流母线；而在使用弹簧端子时，这一任务则由拉力弹簧担当。为此，利用一操作工具例如螺丝刀将张紧的拉力弹簧打开，从而可以通过拉力弹簧的弹簧股上的窗将导线引入到连接空隙中。在撤去操作工具之后，导线便可借助拉力弹簧的弹力而被引向母线。于是，为了能够将导线或操作工具的尖头引入到电接线端子中，端子外壳具有一导线引入孔和一操作孔。
电接线端子通常都是接线端子，所以它们都至少具有两个导线连接元件，这些元件经过一导电的连接汇流排即母线彼此实现电连接。除了这种基本类型的接线盒之外，还有许多不同类型的接线盒，它们专门适用于相关的使用场合。在此举出双联杆或三联杆端子及三导线或多导线端子的例子，它们各自具有相应较大数量的导线连接元件。此外还有这类接线盒，它们包括一基本端子和一连接插头，其中基本端子具有一端子外壳、至少一安装在其中的导线连接元件和至少一与导线连接元件实现电连接的插接位置。连接插头同样具有至少一导线连接元件和一与该导线连接元件实现电连接的插头。根据这一类型的接线盒，基本端子通常都固定在汇流排上，同时连接插头可利用其插头插到基本端子的一个相应的插接位置上。
为了在一台电气设备投入运行之前能够检测其布线是否正确，或者为了在出现故障时能够尽可能简单地确定布线错误，有了这样的电接线端子，即在它们的端子外壳中附带设计了一个检测插头孔，用于***相应的检测插头。检测插头孔一方面可使端子外壳内部的导电部件即导线连接元件或母线与检测插头相接触，另一方面也可用于检测插头的导向和可靠固定。
随着电气装置和电气设备的全面日益小型化，所以要求配电柜也不断小型化。此外，由于越来越多的电气装置和设备必须相互布线，所以配电柜中为电接线端子提供的位置也随之减小。因此，对所谓的“微型接线盒”的需求便日益增多，这种微型接线盒应具有极为紧凑的结构，即其只有很小的宽度和很短的长度。
发明内容
因此，本发明的任务是提供文首述及的那种电接线端子，它一方面可以使检测分接得以实现，另一方面又只有很小的结构尺寸。
针对文首述及的那种电接线端子，首先并大体通过以下措施解决上述任务：即检测插头孔与操作孔的中心平面侧向错开布置。按现有的技术背景，导线引入孔、操作孔及检测插头孔各个都与中心平面对称，也就是说，都布置在电接线端子的中间。在此情况下，检测插头孔便处在导线引入孔和操作孔之间的正中。由于检测插头孔的侧向布置，尤其是其仍布置在导线引入孔和操作孔之间，故与现有技术背景相比，实现了一种具有较短结构形式的电接线端子。
按照本发明的一种特别有利的布置，这样设计该电接线端子：即操作孔和检测插头孔搭合在一起。于是总共就只设定两个孔了，其中一个孔是导线引入孔，第二个孔的一部分构成操作孔，而第二个孔的另一部分作为检测插头孔。这样，电接线端子的长度便可进一步缩短，此外，端子外壳上的第二个孔可得到最佳利用。
具体地说，有许多可能性来设计本发明提出的电接线端子，特别是通过调整操作孔和检测插孔的形状、大小和布置，以适配有关要求的特别是随时所用的检测插头。
附图说明
下面将结合附图对本发明提出的电接线端子的几个优选的实施例进行更为详细的说明。附图表示：
图1一种接线盒的一个实施例，包含本发明提出的电接线端子，其透视图，从上方斜视，
图2图1所示的三个电接线端子，上视图，
图3图1所示的三个电接线端子，侧视图，
图4本发明提出的电接线端子的断面放大图，局部断面侧视图，
图5一个电接线盒包括一个基本端子和一个连接插头，和
图6导线引入孔、操作孔和检测插头孔的不同布置可能性示意图。
具体实施方式
图1至3分别表示三个不同的电接线盒1，它们一起插在一接线板2上。每个接线盒1都有一个端子外壳3，在其中分别设置了一弹簧端子4和一母线5。弹簧端子4用于与一未示出的电导线电接触，其中电导线借助弹簧端子4引向母线5。
每个电接线盒1的端子外壳3都有一导线引入孔6、一操作孔7和一检测插头孔8。若将一操作工具例如将一螺丝刀的尖头引入到操作孔7中，则该螺丝刀的尖头移至一外壳壁9和弹簧端子4的背面10之间，于是形成在弹簧端子4的端子股11上的一个槽便移到导线引入孔6的下面，从而可将一待连接的导线通过导线引入孔6推进到弹簧端子4的槽中。当从操作孔7中拔出该操作工具时，弹簧端子4便回弹，从而将插在该槽中的导线引向母线5。于是，电导线与接线盒1实现电连接。
如特别可以从图2中看出的，检测插头孔8与中心平面M侧向错开布置在操作孔7的一旁。操作孔7和检测插头孔8可以通过一薄壁12而彼此分开，如图2中居中的接线盒1的情况。优选操作孔7合到检测插头孔8中。通常由于导线引入孔6具有基本成圆形的横断面，所以可借助检测插头孔8与中心平面M侧向错开的布置使导线引入孔6和操作孔7彼此布置得更加紧密。
检测插头孔8的形状和大小可按检测插头13的结构来选择。若检测插头13只有一较细的探针，则检测插头孔8可设计成具有小直径的通孔，如图2中位于下面的一个接线盒1的情况。反之，若使用一种具有一多芯触针14的检测插头13，而触针14又具有近似正方形的横断面，则检测插头孔8也可以相应地设计成近似于正方形。
如果按照优选的结构，让操作孔7和检测插头孔8彼此相搭合，则操作孔7和检测插头孔8之间过渡区15的宽度小于检测插头13或触针14的直径或宽度。操作孔7和检测插头孔8通过限定过渡区15的突出部16彼此分开。这样，一方面可以保证检测插头13在***到检测插头孔8中时由该孔导向，另一方面还可保证防止检测插头13可能滑进操作孔7中的现象发生。由于弹簧端子4如图3和图4所示地布置在端子外壳3中，所以操作工具在引入到操作孔7中时便被压向操作孔7的背向导线引入孔6的一边，这样，由于检测插头孔8被布置在操作孔7的朝向导线引入孔6的一边，故检测插头孔8不会影响操作工具推进到操作孔7中。
图5表示一种电接线盒1的一个结构形式，它包含一基本端子17和一连接插头18。基本端子17可以固定在一未示出的汇流排上，为此在基本端子17的底座19上设计了相应的固定元件20。基本端子17与连接插头18的连接是通过设置在基本端子17上的一插销21和设置在连接插头18上的一塞孔22实现的，该插销套部分地与母线5相连。可将图1至4中所示的电接线盒1用其插头套22插在基本端子17的插销21上，以取代图5中所示的连接插头18，该插头具有两个用于连接两条电导线的弹簧端子4。
从图3和5中可以看出，在电接线盒1上或在连接插头18上设有一编码元件23，于此，编码元件23经过一薄的作为弱面设计的工作桥24与端子外壳3相连。这样，可以很容易地用手从端子外壳3上分离编码元件23，并将之***到在基本端子17上成形的孔25中，因此可以用简单的方式对基本端子17进行编码，从而确保只有“正确的”连接插头18与基本端子17相连。
此外，从图1中可以看出：在端子外壳3上设定有多个固定元件26，它们的作用是将各个电接线盒1彼此连接起来。此外，各个端子外壳3借助固定元件26和相应的槽口组合在一起。另外还可从图1至3中看出：端子外壳3具有另一个孔27，一电桥或一短接插头可推入到该孔中，此短接插头用于实现两个或多个相邻电接线盒1的电短接。
图6a首先示出了一种从现有技术背景所知的接线盒1的导线引入孔6、操作孔7和检测插头孔8的布置情况。检测插头孔8设在导线引入孔6和操作孔7的正中间，同导线引入孔6和操作孔7一样也与中心平面M对称布置。与此相反，如图6b所示，根据本发明，检测插头孔8与中心平面M侧向错开布置在操作孔7的一旁。按图6b所示，除了导线引入孔6之外，操作孔7也作为圆孔设计。由于检测插头孔8与中心平面M侧向错开布置，故导线引入孔6和操作孔7彼此便可按较小的间距进行布置，即按小于图6a所示的布置间距布置，因此实现一种沿中心平面M方向具有较小尺寸的电接线盒1。
图6c至6e表示了根据本发明的关于导线引入孔6、操作孔7和检测插头孔8的可能的布置方式，其与图6b的布置的不同之处在于：操作孔7和检测插头孔8彼此相搭合。用并不存在的操作孔7及检测插头孔8的边缘的虚线表示操作孔7和检测插头孔8的这种似乎“重叠”的部分。
按图6c所示的结构，操作孔7和检测插头孔8各自都具有圆的横断面；而按图6d所示的结构，操作孔7和检测插头孔8则设计成正方形。检测插头孔8的形状和大小取决于所用检测插头13的形状和大小。图6e所示的实施例与其它实施例的不同之处在于：在操作孔7的旁边布置了另一个检测插头孔8。因此，具有这种结构的接线盒1便提供了这样的可能性，即不同的检测插头13可按照各自的横断面***到两个检测插头孔8之一中。

Claims (7)

1.电接线端子，其具有：一端子外壳(3)、至少一设置在该外壳(3)中的弹簧端子(4)，和至少一电流母线(5)，其中端子外壳(3)具有至少一用于引入待连接的电导线的导线引入孔(6)、至少一用于引入打开弹簧端子(4)的操作工具的操作孔(7)和至少一用于***检测插头(13)的、设置在所述导线引入孔(6)和所述操作孔(7)之间的检测插头孔(8)，其中，所述导线引入孔(6)和所述操作孔(7)都被设置成与该电接线端子的中心平面(M)对称，其特征在于：该检测插头孔(8)与该电接线端子的中心平面(M)侧向错开布置在操作孔(7)的一旁。
2.按权利要求1所述的电接线端子，其特征在于：操作孔(7)和检测插头孔(8)彼此相搭合。
3.按权利要求2所述的电接线端子，其特征在于：基本呈矩形的操作孔(7)的一个角设计成检测插头孔(8)。
4.按权利要求1至3中的任一项所述的电接线端子，其特征在于：与导线引入孔(6)相比，检测插头孔(8)设计为一小孔。
5.按权利要求1至3中的任一项所述的电接线端子，其特征在于：检测插头孔(8)基本上设计成矩形。
6.按权利要求2所述的电接线端子，其特征在于：操作孔(7)和检测插头孔(8)之间的过渡区(15)的宽度小于检测插头的直径或宽度。
7.按权利要求2所述的电接线端子，其特征在于：操作孔(7)和检测插头孔(8)通过限定在操作孔(7)和检测插头孔(8)之间的过渡区(15)的突出部(16)彼此分开。
CNB021055955A 2001-04-18 2002-04-18 电接线端子 Expired - Fee Related CN1310378C (zh)

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US6736683B2 (en) 2004-05-18
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EP1251590A2 (de) 2002-10-23
EP1251590B1 (de) 2011-08-03
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ES2369657T3 (es) 2011-12-02
DE20106710U1 (de) 2001-08-09

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