【技术领域】【Technical field】
本发明涉及一种电连接器，尤其涉及一种改善信号串扰的电连接器。The invention relates to an electrical connector, in particular to an electrical connector for improving signal crosstalk.
【背景技术】【Background technique】
与本发明相关的现有技术可参照美国专利第6299484B2号，该专利公开了一种电连接器，其包括若干绝缘模块、收容于绝缘模块内的若干端子模组及分隔两相邻绝缘模块的屏蔽块，其中端子模组包括间隔排布的接地端子与信号端子。所述绝缘模块相互拼合，屏蔽块设置于相邻绝缘模块之间，所述信号端子及接地端子被屏蔽块分隔。屏蔽块上冲设出若干台阶部，接地端子架设于该等台阶部上面以实现接地，然而这种点接触的接地方式存在接地稳定性差的缺点且信号端子和信号端子之间不能有效地分隔开，这样信号端子之间仍然存在串扰问题，另外端子模组之间的距离也设置得较远，不符合目前连接器小型化的发展趋势。For the prior art related to the present invention, please refer to U.S. Patent No. 6,299,484B2, which discloses an electrical connector comprising a number of insulating modules, a number of terminal modules accommodated in the insulating modules, and a barrier separating two adjacent insulating modules. The shield block, wherein the terminal module includes ground terminals and signal terminals arranged at intervals. The insulating modules are joined together, the shielding blocks are arranged between adjacent insulating modules, and the signal terminals and grounding terminals are separated by the shielding blocks. A number of steps are punched on the shielding block, and the grounding terminal is erected on these steps to achieve grounding. However, this point-contact grounding method has the disadvantage of poor grounding stability and the signal terminal cannot be effectively separated from the signal terminal. Open, so there is still a crosstalk problem between the signal terminals, and the distance between the terminal modules is also set far, which does not conform to the current development trend of connector miniaturization.
因此，需要一种可以解决上述问题的电连接器。Therefore, there is a need for an electrical connector that can solve the above problems.
【发明内容】【Content of invention】
本发明的目的在于提供一种可有效降低信号间串扰的电连接器。The purpose of the present invention is to provide an electrical connector which can effectively reduce crosstalk between signals.
本发明的目的是通过以下技术方案实现的：一种电连接器，包括若干端子组件，所述端子组件包括第一端子模板、第二端子模板及屏蔽板，第一、第二端子模板均包括间隔排布的信号端子和接地端子，屏蔽板设置于第一、第二端子模板之间，所述屏蔽板在其一壁面处形成凸肋而在相对的另一壁面处形成凹沟，凸肋抵压在两端子模板的接地端子，而凹沟则对应信号端子。The purpose of the present invention is achieved through the following technical solutions: an electrical connector, including a number of terminal assemblies, the terminal assembly includes a first terminal template, a second terminal template and a shielding plate, the first and second terminal templates both include The signal terminals and grounding terminals are arranged at intervals, and the shielding plate is arranged between the first and second terminal templates. The shielding plate forms a convex rib on one wall surface and a concave groove on the opposite wall surface. The convex ribs The ground terminal is pressed against the two terminal templates, and the groove corresponds to the signal terminal.
与现有技术相比，本发明具有以下有益效果：屏蔽板设置的凸肋和凹沟可以更有效的降低信号端子与信号端子之间的串扰问题。Compared with the prior art, the present invention has the following beneficial effects: the convex ribs and concave grooves provided on the shielding plate can more effectively reduce the crosstalk between signal terminals.
【附图说明】【Description of drawings】
图1是本发明电连接器的立体图。Fig. 1 is a perspective view of the electrical connector of the present invention.
图2是本发明电连接器的端子组件的立体图。Fig. 2 is a perspective view of a terminal assembly of the electrical connector of the present invention.
图3是本发明电连接器的端子组件的分解图。Fig. 3 is an exploded view of the terminal assembly of the electrical connector of the present invention.
图4是本发明电连接器的导电端子与屏蔽板的分离视图。Fig. 4 is an isolated view of the conductive terminal and the shielding plate of the electrical connector of the present invention.
图5是本发明电连接器的导电端子与屏蔽板结合的剖视示意图。5 is a schematic cross-sectional view of the combination of the conductive terminal and the shielding plate of the electrical connector of the present invention.
【具体实施方式】【Detailed ways】
请参阅图1至图5所示，本发明揭示了一种用于信号高速传输的电连接器100，其包括若干端子组件1及绝缘对接体4，该等端子组件1彼此紧密的平行排列，其前端的端子接触部31凸伸出端子组件的配合面202。绝缘对接体4则设有贯穿前后端面的槽道41。该等端子组件的接触部31进入槽道41，如此，构成本实施例电连接器100的整体构架。1 to 5, the present invention discloses an electrical connector 100 for high-speed signal transmission, which includes a number of terminal assemblies 1 and insulating butt joints 4, and these terminal assemblies 1 are closely arranged in parallel with each other. The terminal contact portion 31 at the front end protrudes from the mating surface 202 of the terminal assembly. The insulating butt joint body 4 is provided with a channel 41 running through the front and rear end surfaces. The contact portions 31 of the terminal assemblies enter the slots 41 , thus forming the overall framework of the electrical connector 100 of this embodiment.
请参阅图2至图4所示，所述每一端子组件1由三部分组成，其包括第一端子模板11、第二端子模板12及一屏蔽板13。第一端子模板11与第二端子模板12的结构类似，均包括绝缘体2及金属导电端子3。绝缘体2为板状结构，导电端子3为片状的L型结构，若干个导电端子平行排列而埋设于绝缘体2内，且导电端子的一边裸露在绝缘体的一侧面201，在最佳实施例中，导电端子一体成型于绝缘体内。导电端子的前端的接触部31凸伸出绝缘体的一端面(即配合面202)，导电端子的焊接脚32凸伸出绝缘体的另一跟配合面邻近且垂直的端面(即安装面203)，而连接于接触部31与焊接脚32的连接部30则紧贴在绝缘体的侧面201内。焊接脚33冲设有通孔321，这样焊接安装脚到电路板(未标示)时，焊锡会进入通孔321内，使得焊接脚32与电路板可以稳定地结合。相对侧面201的另一侧面则在对应连接部位置设有若干凹槽21，有助于提高电气性能。屏蔽板13为片状结构设置，其形状与导电端子的形状彼此对应，被夹持于第一端子模板11与第二端子模板12之间，用以降低导电端子3之间的干扰。Referring to FIGS. 2 to 4 , each terminal assembly 1 is composed of three parts, including a first terminal template 11 , a second terminal template 12 and a shielding plate 13 . The structure of the first terminal template 11 is similar to that of the second terminal template 12 , both of which include insulators 2 and metal conductive terminals 3 . The insulator 2 is a plate-shaped structure, and the conductive terminal 3 is a sheet-shaped L-shaped structure. Several conductive terminals are arranged in parallel and embedded in the insulator 2, and one side of the conductive terminal is exposed on one side 201 of the insulator. In the preferred embodiment , The conductive terminal is integrally formed in the insulator. The contact portion 31 of the front end of the conductive terminal protrudes from one end surface of the insulator (that is, the mating surface 202), and the welding foot 32 of the conductive terminal protrudes from the other end surface of the insulator that is adjacent to and perpendicular to the mating surface (ie, the mounting surface 203). The connecting portion 30 connected to the contact portion 31 and the soldering leg 32 is tightly attached to the side surface 201 of the insulator. The soldering pin 33 is punched with a through hole 321, so that when soldering the mounting pin to a circuit board (not shown), solder will enter the through hole 321, so that the soldering pin 32 and the circuit board can be stably combined. The other side of the opposite side 201 is provided with a plurality of grooves 21 at positions corresponding to the connecting parts, which helps to improve electrical performance. The shielding plate 13 is set in a sheet structure, its shape corresponds to the shape of the conductive terminals, and is clamped between the first terminal template 11 and the second terminal template 12 to reduce the interference between the conductive terminals 3 .
每一端子模板的导电端子3由一组平行排列于同一平面内的端子构成，其包括信号端子33及接地端子34，信号端子33和接地端子34间隔排布于同一平面内，其中信号端子用于传输信号而接地端子则用于接地。下面介绍各个端子的具体结构。每一信号端子包括由两个独立的金属片或者金属条组成一对差分信号对，其包括接触端331、焊接脚332及连接部330，接触端呈分叉状，一个接触端的自由末端弯折形成两个弹性接触部3311，可提供端子弹性接触的弹性力。接地端子34包括焊接脚340及与焊接脚相连的连接部342，不具有类似信号端子的接触部，接地端子的宽度较宽，跟一个差分信号对差不多相同。每一端子模板包括四对信号端子及位于相邻信号端子之间的一个接地端子，将每一差分信号对间隔开。The conductive terminal 3 of each terminal template is composed of a group of terminals arranged in parallel in the same plane, which includes signal terminals 33 and ground terminals 34, and the signal terminals 33 and ground terminals 34 are arranged in the same plane at intervals, wherein the signal terminals are used for The ground terminal is used for the transmission of signals while the ground terminal is used for grounding. The specific structure of each terminal is introduced below. Each signal terminal includes a pair of differential signal pairs composed of two independent metal sheets or metal strips, which include a contact end 331, a soldering foot 332 and a connecting portion 330. The contact end is bifurcated, and the free end of one contact end is bent Two elastic contact portions 3311 are formed to provide elastic force for elastic contact of the terminals. The ground terminal 34 includes a soldering pin 340 and a connection portion 342 connected to the soldering pin. It does not have a contact portion similar to a signal terminal. The width of the ground terminal is relatively wide, which is almost the same as a differential signal pair. Each terminal template includes four pairs of signal terminals and a ground terminal located between adjacent signal terminals to separate each differential signal pair.
请特别注意，第一端子模板的导电端子3a跟第二端子模板的导电端子3b结构类似，但是信号端子跟接地端子的排列方式呈交错状。第一端子模板的导电端子3a的最远离焊接部32的为接地端子34，接下来才是信号端子，然后交替排列。而第二端子模组的导电端子3b的最远离焊接部32的为信号端子33，接下来才是接地端子34，然后交替排列。如此，在垂直于两端子模板的方向上，第一端子模板的信号端子恰好对齐第二端子模板的接地端子，第二端子模板的信号端子恰好对齐第一端子模板的接地端子，可达成在该方向上的屏蔽作用。Please note that the conductive terminals 3a of the first terminal template are similar in structure to the conductive terminals 3b of the second terminal template, but the signal terminals and ground terminals are arranged in a staggered manner. The conductive terminals 3 a of the first terminal template are the ground terminals 34 furthest from the soldering portion 32 , followed by the signal terminals, and are arranged alternately. In the second terminal module, the signal terminals 33 are the ones farthest from the soldering portion 32 of the conductive terminals 3 b , followed by the ground terminals 34 , and are arranged alternately. In this way, in the direction perpendicular to the two terminal templates, the signal terminals of the first terminal template are just aligned with the ground terminals of the second terminal template, and the signal terminals of the second terminal template are just aligned with the ground terminals of the first terminal template. Shielding in the direction.
屏蔽板13具有相对的第一壁面13a和第二壁面13b，其包括接触部131及连接部132，连接部呈平板状，其形状跟端子模板的所有导电端子3的连接部对应，但是没有断开，接触部131自连接部的前端延伸出来且分别交替向两侧弯折，呈两排状，每排接触部131恰好位于每一端子模板的信号端子的差分信号对之间，图2所示。屏蔽板设置于两端子模组之间，因其未设有焊接脚，还需要设置将屏蔽板与接地端子连接的结构，下面结合图5具体说明结构。The shielding plate 13 has opposite first wall surface 13a and second wall surface 13b, which includes a contact portion 131 and a connection portion 132, the connection portion is in the shape of a flat plate, and its shape corresponds to the connection portion of all the conductive terminals 3 of the terminal template, but there is no break. Open, the contact portion 131 extends from the front end of the connecting portion and bends alternately to both sides, forming two rows, each row of contact portion 131 is just located between the differential signal pairs of the signal terminals of each terminal template, as shown in Figure 2 Show. The shielding plate is arranged between the two terminal modules. Because there are no welding feet, a structure for connecting the shielding plate to the grounding terminal is required. The structure will be described in detail below with reference to FIG. 5 .
结合图4、图5所示，屏蔽板13的第一壁面13a上利用金属的延展性分别向一侧冲压出凸肋134，而在相对的另一侧面则形成凹沟135，由于屏蔽板未设焊接脚，凸肋134抵接于接地端子34的连接部342上，以连接部342为中介，屏蔽板13可以间接地借用接地端子34的焊接脚340实现接地的功效(凸肋和接地端子之间为面接触，接地效果更好)。因第一端子模板的导电端子3a跟第二端子模板的导电端子3b中的接地端子为上、下交错排列，故第一、第二壁面的冲压位置错开，第一、第二壁面13a、13b上的凸肋134a、134b彼此交错间隔排布，最终屏蔽板两壁面上的凸肋均能抵接到第一、第二端子模板中的接地端子上实现屏蔽接地。请注意，由于凸肋134与凹沟135是间隔排布的，而接地端子34与信号端子33也为间隔排布，这样当凸肋与接地端子抵接的时候，凹沟可对信号端子形成包围(凹沟使得信号端子在垂直于遮蔽板方向上的距离变宽，且凹沟的宽度设置的较信号端子宽)，这样屏蔽板13不仅可分隔两端子模板中的信号端子，对于同块端子模板中的信号端子同样被分隔开来，使得屏蔽效果更加出众，信号端子之间的串扰可被减小到最低。本发明屏蔽板为贴合于两端子模板，减小了导电端子3a与导电端子3b之间的间距(同样减小了第一端子模板与第二端子模板之间的距离)，这样可以制造出小体积的电连接器，符合目前电连接器小型化的发展趋势。4 and 5, on the first wall 13a of the shielding plate 13, convex ribs 134 are punched out to one side by utilizing the ductility of the metal, while grooves 135 are formed on the opposite side. Welding feet are provided, and the convex rib 134 abuts on the connection portion 342 of the ground terminal 34. With the connection portion 342 as an intermediary, the shielding plate 13 can indirectly use the welding foot 340 of the ground terminal 34 to realize the effect of grounding (the convex rib and the ground terminal Surface contact between them, the grounding effect is better). Since the conductive terminals 3a of the first terminal template and the grounding terminals of the conductive terminals 3b of the second terminal template are arranged staggered up and down, the stamping positions of the first and second walls are staggered, and the first and second walls 13a, 13b The convex ribs 134a, 134b on the top are alternately arranged at intervals, and finally the convex ribs on both walls of the shielding plate can abut against the grounding terminals in the first and second terminal templates to realize shielding grounding. Please note that since the convex ribs 134 and the concave grooves 135 are arranged at intervals, and the ground terminals 34 and the signal terminals 33 are also arranged at intervals, so when the convex ribs and the ground terminals abut, the concave grooves can be formed on the signal terminals. surround (the groove makes the distance of the signal terminal wider in the direction perpendicular to the shielding plate, and the width of the groove is set wider than the signal terminal), so that the shielding plate 13 can not only separate the signal terminals in the two terminal templates, but also for the same block The signal terminals in the terminal block are also separated, so that the shielding effect is more outstanding, and the crosstalk between the signal terminals can be reduced to the minimum. The shielding plate of the present invention is attached to the two terminal templates, reducing the distance between the conductive terminal 3a and the conductive terminal 3b (similarly reducing the distance between the first terminal template and the second terminal template), so that the The small-sized electrical connector conforms to the current development trend of miniaturization of electrical connectors.
综上所述，本发明通过屏蔽板的凹沟135对信号端子33在其排布路径上进行包围，凸肋134则抵接于接地端子34在其排布路径上，这样设置可有效地对导电端子3实现接地的同时可分隔信号端子从而有效地降低信号端子之间的信号串扰。以上仅为本发明较佳的实施例，本发明并不以以上实施例为限制，但凡了解本案设计要点之人以此所作等效的变幻，均应涵盖本案权利要求内。In summary, the present invention surrounds the signal terminals 33 on its arrangement path through the concave groove 135 of the shielding plate, and the convex rib 134 abuts against the ground terminal 34 on its arrangement path. The conductive terminal 3 can separate the signal terminals while achieving grounding, so as to effectively reduce the signal crosstalk between the signal terminals. The above are only preferred embodiments of the present invention, and the present invention is not limited by the above embodiments, but all equivalent changes made by those who understand the design points of this case should be covered in the claims of this case.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110069526.1ACN102694308B (en) | 2011-03-22 | 2011-03-22 | electrical connector |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110069526.1ACN102694308B (en) | 2011-03-22 | 2011-03-22 | electrical connector |
| Publication Number | Publication Date |
|---|---|
| CN102694308A CN102694308A (en) | 2012-09-26 |
| CN102694308Btrue CN102694308B (en) | 2014-09-24 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110069526.1AExpired - Fee RelatedCN102694308B (en) | 2011-03-22 | 2011-03-22 | electrical connector |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20140924 Termination date:20150322 | |
| EXPY | Termination of patent right or utility model |