CN101771226A - electrical connector - Google Patents

electrical connector Download PDF

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Publication number
CN101771226A
CN101771226A CN200910300064A CN200910300064A CN101771226A CN 101771226 A CN101771226 A CN 101771226A CN 200910300064 A CN200910300064 A CN 200910300064A CN 200910300064 A CN200910300064 A CN 200910300064A CN 101771226 A CN101771226 A CN 101771226A
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terminal
welding
differential signal
terminals
electrical connector
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CN200910300064A
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CN101771226B (en
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何家勇
郑启升
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Foxconn Kunshan Computer Connector Co Ltd
Hon Hai Precision Industry Co Ltd
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Foxconn Kunshan Computer Connector Co Ltd
Hon Hai Precision Industry Co Ltd
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Priority to CN2009103000642A priority Critical patent/CN101771226B/en
Priority to US12/501,035 priority patent/US7972151B2/en
Priority to JP2009291227A priority patent/JP5174800B2/en
Publication of CN101771226A publication Critical patent/CN101771226A/en
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Abstract

一种电连接器，其包括绝缘本体及设于绝缘本体上的导电端子，导电端子包括若干接地端子、若干对差分信号端子，每一接地端子设有延伸出绝缘本体的第一焊接部，每一差分信号端子设有延伸出绝缘本体的第二焊接部，所述第一、第二、第三焊接部排列成一排，其中两接地端子的第一焊接部排布于相邻两对差分信号端子的第二焊接部之间，因此增加了相邻两对差分信号端子之间的屏蔽效果，降低了差分信号端子之间的串扰，提高了电连接器的信号传输品质。

Figure 200910300064

An electrical connector, which includes an insulating body and conductive terminals arranged on the insulating body, the conductive terminals include several grounding terminals and several pairs of differential signal terminals, each grounding terminal is provided with a first welding portion extending out of the insulating body, each A differential signal terminal is provided with a second welding portion extending out of the insulating body, the first, second, and third welding portions are arranged in a row, and the first welding portions of the two ground terminals are arranged in two adjacent pairs of differential signal terminals. Therefore, the shielding effect between two adjacent pairs of differential signal terminals is increased, the crosstalk between differential signal terminals is reduced, and the signal transmission quality of the electrical connector is improved.

Figure 200910300064

Description

电连接器 electrical connector

【技术领域】【Technical field】

本发明是有关一种电连接器，尤其涉及一种具有差分信号传输的电连接器。The invention relates to an electrical connector, in particular to an electrical connector with differential signal transmission.

【背景技术】【Background technique】

电连接器使用导电端子提供电子设备之间的信号连接。通常，导电端子间隔很接近，使得在相邻导电端子之间出现“串扰”。混合的电场导致一个导电端子在相邻的导电端子中感应电干扰时出现串扰，从而破坏信号的完整性。随着电子设备的小型化和高速度，高信号完整性的电通信变得更加普遍，该串扰的减小变为在连接器设计中的一个重要因素。Electrical connectors provide signal connections between electronic devices using conductive terminals. Typically, the conductive terminals are closely spaced such that "crosstalk" occurs between adjacent conductive terminals. The mixed electric fields cause crosstalk when one conductive terminal induces electrical interference in adjacent conductive terminals, thereby compromising signal integrity. With the miniaturization and high speed of electronic devices, high signal integrity electrical communication becomes more common and the reduction of this crosstalk becomes an important factor in connector design.

一种通常使用的用于减小串扰的技术是在相邻信号端子之间设置接地端子，如中国发明专利公开第1937324A号揭露的一种电连接器，该电连接器用以传输高频数字信号，其包括绝缘本体、导电端子及包覆绝缘本体的遮蔽壳体，绝缘本体包括基部及自基部向前凸伸的舌片，每一导电端子包括排设于舌片表面上的接触部及延伸出绝缘本体的焊接部，所有焊接部排布成一排，导电端子包括接地端子及若干对差分信号端子，然而，该电连接器的相邻两对差分信号端子的焊接部之间仅设有一接地端子的焊接部，使得相邻两对差分信号端子之间的串扰仍然很高，以致影响了该电连接器的信号传输品质。A commonly used technology for reducing crosstalk is to set ground terminals between adjacent signal terminals, such as an electrical connector disclosed in Chinese Invention Patent Publication No. 1937324A, which is used to transmit high-frequency digital signals , which includes an insulating body, a conductive terminal and a shielding shell covering the insulating body. The insulating body includes a base and a tongue protruding forward from the base. Each conductive terminal includes a contact portion arranged on the surface of the tongue and an extension All the welding parts are arranged in a row, and the conductive terminals include ground terminals and several pairs of differential signal terminals. However, there is only one ground connection between the welding parts of two adjacent pairs of differential signal terminals of the electrical connector. The welding portion of the terminal makes the crosstalk between two adjacent pairs of differential signal terminals still very high, so that the signal transmission quality of the electrical connector is affected.

所以，有必要设计一种电连接器以解决上述技术问题。Therefore, it is necessary to design an electrical connector to solve the above technical problems.

【发明内容】【Content of invention】

本发明的主要目的在于提供一种具有改善高频信号传输品质的电连接器。The main purpose of the present invention is to provide an electrical connector with improved high-frequency signal transmission quality.

为达成上述发明目的，本发明采用如下技术方案：一种电连接器，设有收容对接插头的插接孔，其包括：绝缘本体及设于绝缘本体上的导电端子，所述绝缘本体包括基部及自基部向前凸伸入插接孔内的舌片，导电端子包括若干接地端子及若干对差分信号端子，每一接地端子包括暴露于插接孔内用以连接对接插头的接触部及延伸出绝缘本体的第一焊接部，每一差分信号端子包括暴露于插接孔内用以连接对接插头的接触部及延伸出绝缘本体的第二焊接部，至少一对差分信号端子的两接触部在舌片的宽度方向上相互对齐，所述第一、第二焊接部排列成一排，其中两接地端子的第一焊接部排布于相邻两对差分信号端子的第二焊接部之间。In order to achieve the purpose of the above invention, the present invention adopts the following technical solution: an electrical connector, which is provided with a plug hole for accommodating a mating plug, which includes: an insulating body and a conductive terminal arranged on the insulating body, and the insulating body includes a base And the tongue that protrudes forward from the base into the insertion hole. The conductive terminals include several ground terminals and several pairs of differential signal terminals. Out of the first welding part of the insulating body, each differential signal terminal includes a contact part exposed in the insertion hole for connecting to the mating plug and a second welding part extending out of the insulating body, at least one pair of two contact parts of the differential signal terminal Aligned with each other in the width direction of the tongue pieces, the first and second soldering portions are arranged in a row, wherein the first soldering portions of two ground terminals are arranged between the second soldering portions of two adjacent pairs of differential signal terminals.

相较于现有技术，本发明电连接器通过在两对差分信号端子的第二焊接部之间设置有两接地端子的第一焊接部，增加了相邻两对差分信号端子之间的屏蔽效果，降低了该两对差分信号端子之间的串扰，提高了电连接器的信号传输品质。Compared with the prior art, the electrical connector of the present invention increases the shielding between two adjacent pairs of differential signal terminals by providing the first welding portion of the two grounding terminals between the second welding portions of the two pairs of differential signal terminals. As a result, the crosstalk between the two pairs of differential signal terminals is reduced, and the signal transmission quality of the electrical connector is improved.

【附图说明】【Description of drawings】

图1是本发明电连接器与电路板的立体图。FIG. 1 is a perspective view of an electrical connector and a circuit board of the present invention.

图2是本发明电连接器的立体图。Fig. 2 is a perspective view of the electrical connector of the present invention.

图3是本发明电连接器的部分立体分解图。Fig. 3 is a partially exploded perspective view of the electrical connector of the present invention.

图4是本发明电连接器另一部分立体分解图。Fig. 4 is an exploded perspective view of another part of the electrical connector of the present invention.

图5是本发明电连接器的立体分解图。Fig. 5 is a three-dimensional exploded view of the electrical connector of the present invention.

图6是本发明电连接器的另一角度立体分解图。FIG. 6 is another perspective exploded view of the electrical connector of the present invention.

图7是本发明电连接器导电端子的排布示意图。Fig. 7 is a schematic diagram of the arrangement of conductive terminals of the electrical connector of the present invention.

【具体实施方式】【Detailed ways】

请参阅图1至图7所示，本发明电连接器100为USB插座连接器，用以安装于电路板200上供USB 2.0A型对接插头和USB 3.0A型对接插头(未图示)插接，其包括：绝缘本体1、设于绝缘本体1上的若干导电端子2及包覆绝缘本体1的金属遮蔽壳体3。Please refer to Fig. 1 to Fig. 7, the electrical connector 100 of the present invention is a USB receptacle connector, which is used to be installed on a circuit board 200 for USB 2.0A type docking plug and USB 3.0A type docking plug (not shown). It includes: an insulating body 1, a plurality of conductive terminals 2 arranged on the insulating body 1, and a metal shielding shell 3 covering the insulating body 1.

绝缘本体1包括第一本体11及固定于第一本体11底部的第二本体12。第一本体11包括第一基部13及自第一基部13向前凸伸的舌片14，第一基部13包括后端部131、分别自后端部131左右两端向前延伸的两侧部132及凹设于后端部131与两侧部132之间的容纳槽133，容纳槽133向前贯穿出第一基部13，两侧部132的内侧设有垂直向下延伸的第一固定槽134及自第一固定槽134底端水平向前延伸出第二基部13的第二固定槽135。舌片14底面设有若干定位槽141及收容槽142，定位槽141设于收容槽142前方并与收容槽142隔开设置。The insulating body 1 includes a first body 11 and a second body 12 fixed on the bottom of the first body 11 . The first body 11 includes a first base portion 13 and a tongue 14 protruding forward from the first base portion 13. The first base portion 13 includes a rear end portion 131 and two side portions respectively extending forward from the left and right ends of the rear end portion 131. 132 and the accommodation groove 133 recessed between the rear end portion 131 and the two side portions 132, the accommodation groove 133 penetrates the first base portion 13 forward, and the inner side of the two side portions 132 is provided with a first fixing groove extending vertically downward 134 and a second fixing groove 135 horizontally extending forward from the bottom of the first fixing groove 134 to the second base 13 . A plurality of positioning grooves 141 and receiving grooves 142 are formed on the bottom surface of the tongue piece 14 , and the positioning grooves 141 are disposed in front of the receiving groove 142 and separated from the receiving groove 142 .

第二本体12包括收容于第一本体11容纳槽133内的第二基部15及自第二基部15顶部向前凸伸的凸板16，第二基部15两侧设有与第一、第二固定槽134、135相卡扣的凸块151，该两凸块151分别设置为直角形结构，第二基部15设有前后贯穿第二基部15的若干固持槽152，第二基部15后端底部还设有与其底面平齐的横向凸肋153。凸板16与第一本体11的舌片14相互平行，凸板16的两侧设有设有抵压在第一本体11第一基部13前端面上的凸条161。The second body 12 includes a second base 15 accommodated in the receiving groove 133 of the first body 11 and a protruding plate 16 protruding forward from the top of the second base 15. The two sides of the second base 15 are provided with the first and second bases. The fixed grooves 134, 135 are engaged with the protrusions 151, the two protrusions 151 are respectively arranged in a right-angled structure, the second base 15 is provided with a number of holding grooves 152 that run through the second base 15 front and rear, and the bottom of the rear end of the second base 15 There is also a transverse rib 153 flush with its bottom surface. The protruding plate 16 is parallel to the tongue 14 of the first body 11 , and two sides of the protruding plate 16 are provided with protruding strips 161 pressed against the front surface of the first base 13 of the first body 11 .

导电端子2包括有第一端子组21及第二端子组22，第二端子组22为USB 2.0A型插座连接器端子，用以连接USB 2.0型对接插头；第一、第二端子组21、22共同构成USB 3.0A型插座连接器端子，用以连接USB 3.0A型对接插头。第一端子组21设置为五根，其包括第一对差分信号端子211及第二对差分信号端子212以及位于该两对差分信号端子211、212之间的第一接地端子213，第一接地端子213用以降低第一对及第二对差分信号端子211、212之间的串扰。第一端子组21包括设于前端的第一接触部214、与第一接触部214相连的第一固持部215、自第一固持部215后端向下弯折延伸的第一连接部216及自第一连接部216底端向后水平延伸的焊接部217、218，焊接部217、218包括设于接地端子213上的第一焊接部217及设于差分信号端子211、212上的第二焊接部218。其中，第一接触部214设置为平板状结构并容纳于舌片14的定位槽141内，第一连接部216还分别向外侧偏移，从而增大了焊接部217、218之间的间距，第一固持部215与第一连接部216共同采用镶埋成型的方式设置于第一本体11的第一基部13上，第一、第二焊接部217、218自第一基部13底面延伸出，第一接地端子213上的第一连接部216为音叉结构，使得第二焊接部218自该第一连接部216延伸为两个即一对。The conductive terminal 2 includes a first terminal group 21 and a second terminal group 22, the second terminal group 22 is a USB 2.0A socket connector terminal for connecting to a USB 2.0 docking plug; the first and second terminal groups 21, 22 together form a USB 3.0A socket connector terminal for connecting to a USB 3.0A docking plug. The first terminal group 21 is set to five, which includes a first pair of differential signal terminals 211, a second pair of differential signal terminals 212 and a first ground terminal 213 between the two pairs of differential signal terminals 211, 212. The terminal 213 is used to reduce the crosstalk between the first pair and the second pair of differential signal terminals 211 , 212 . The first terminal group 21 includes a first contact portion 214 disposed at the front end, a first holding portion 215 connected to the first contact portion 214, a first connecting portion 216 bent downward from the rear end of the first holding portion 215, and Welding parts 217, 218 extend horizontally backward from the bottom end of the first connecting part 216. The welding parts 217, 218 include the first welding part 217 on the ground terminal 213 and the second welding part on the differential signal terminals 211, 212. Welding portion 218 . Wherein, the first contact portion 214 is arranged as a flat plate structure and accommodated in the positioning groove 141 of the tongue piece 14, and the first connecting portion 216 is also offset to the outside, thereby increasing the distance between the welding portions 217, 218, The first holding part 215 and the first connecting part 216 are jointly disposed on the first base part 13 of the first body 11 by insert molding, and the first and second welding parts 217 and 218 extend from the bottom surface of the first base part 13 . The first connecting portion 216 on the first ground terminal 213 is a tuning fork structure, so that the second welding portion 218 extends from the first connecting portion 216 into two, that is, a pair.

第二端子组22和USB 2.0型连接器的四根端子相同，即依次排列为电源端子220、第三对差分信号端子221(即负信号端子和正信号端子)、第二接地端子223。第二端子组22包括第二接触部224、第二固持部225、连接于第二接触部221与第二固持部225之间的弹性部222、自第二固持部225一端向下弯折延伸的第二连接部226及自第二连接部226底端向后水平延伸的焊接部227、228、229。其中，第二接触部224设置为圆弧状弹性结构并向下凸出于第一本体11舌片14并与第一接触部214在前后方向上错开设置，第一、第二接触部214、224在对接插头的插入方向上错开设置并且在舌片14的厚度方向上位于不同高度，并且每一对差分信号端子211、212、221的两接触部214、224分别在左右方向即在舌片14的宽度方向相互对齐设置，弹性部222悬空于舌片14收容槽142内，第二固持部225固持于第二本体12固持槽152内，第二接地端子223与电源端子220的第二连接部226还向内侧倾斜设置，第二连接部226被夹持于第一本体11的后端部131与第二本体12凸肋153之间固定，第二端子组22的焊接部227、228、229包括设于第二接地端子223上的第一焊接部227、第三对差分信号端子221上的第二焊接部228及电源端子220上的第三焊接部229。The second terminal group 22 is the same as the four terminals of the USB 2.0 type connector, that is, the power supply terminal 220, the third pair of differential signal terminals 221 (ie, the negative signal terminal and the positive signal terminal), and the second ground terminal 223 are arranged in sequence. The second terminal group 22 includes a second contact portion 224 , a second holding portion 225 , an elastic portion 222 connected between the second contact portion 221 and the second holding portion 225 , and extends downward from one end of the second holding portion 225 . The second connecting portion 226 and the welding portions 227 , 228 , 229 extending horizontally from the bottom end of the second connecting portion 226 rearward. Wherein, the second contact portion 224 is arranged as an arc-shaped elastic structure and protrudes downward from the tongue 14 of the first body 11 and is set staggered with the first contact portion 214 in the front-rear direction. The first and second contact portions 214, 224 are staggered in the insertion direction of the mating plug and are located at different heights in the thickness direction of the tongue 14, and the two contact parts 214, 224 of each pair of differential signal terminals 211, 212, 221 are respectively in the left and right direction, that is, on the tongue. 14 are aligned with each other in the width direction, the elastic part 222 is suspended in the receiving groove 142 of the tongue piece 14, the second holding part 225 is fixed in the holding groove 152 of the second body 12, and the second connection between the second grounding terminal 223 and the power terminal 220 The portion 226 is also inclined to the inside, the second connecting portion 226 is clamped between the rear end 131 of the first body 11 and the rib 153 of the second body 12, and the welding portions 227, 228, 228 of the second terminal group 22 229 includes a first soldering portion 227 on the second ground terminal 223 , a second soldering portion 228 on the third pair of differential signal terminals 221 , and a third soldering portion 229 on the power terminal 220 .

第二端子227、228、229延伸出第二本体12并与第一端子组21的焊接部217、218整体排列成一排，第一、第二对差分信号211、212的第二焊接部218分别位于两端最外侧位置。第一端子组21的焊接部217、218排列为分开的两组即两第一组，而第二端子组22的焊接部227、228、229仅排列为一组即第二组，两第一组焊接部217、218分别位于该第二组焊接部227、228、229的两相对外侧，第一接地端子213的两第一焊接部217分别位于第二接地端子223的第一焊接部227、电源端子220的第三焊接部229的外侧并与该第一、第三焊接部227、229相邻，使得第一、第三差分信号端子211、221之间具有第一、第二接地端子213、223的两第一焊接部217、227，从而增加了第一、第三对差分信号端子211、221之间的屏蔽效果，降低了第一、第三对差分信号端子211、221之间的串扰，提高了电连接器100的信号传输品质。第二、第三对差分信号端子212、2221的第二焊接部218、228之间排布有电源端子220的第三焊接部229与第一接地端子213的第一焊接部217，也增加了第二、第三对差分信号端子212、221之间的屏蔽效果，降低了第二、第三对差分信号端子212、221之间的串扰，进一步提高了电连接器100的信号传输品质。The second terminals 227, 228, 229 extend out of the second body 12 and are integrally arranged in a row with the welding portions 217, 218 of the first terminal group 21. The second welding portions 218 of the first and second pairs of differential signals 211, 212 are respectively Located at the outermost positions at both ends. The welding parts 217, 218 of the first terminal group 21 are arranged in two separate groups, that is, two first groups, while the welding parts 227, 228, 229 of the second terminal group 22 are only arranged in one group, that is, the second group, and the two first groups. The sets of welding portions 217, 218 are respectively located on two opposite sides of the second set of welding portions 227, 228, 229, and the two first welding portions 217 of the first ground terminal 213 are respectively located at the first welding portions 227, The outer side of the third welding part 229 of the power supply terminal 220 is adjacent to the first and third welding parts 227, 229, so that there are first and second ground terminals 213 between the first and third differential signal terminals 211 and 221 , 223 of the two first welding parts 217, 227, thereby increasing the shielding effect between the first and third pairs of differential signal terminals 211, 221, and reducing the shielding effect between the first and third pairs of differential signal terminals 211, 221 The crosstalk improves the signal transmission quality of the electrical connector 100 . The third welding portion 229 of the power supply terminal 220 and the first welding portion 217 of the first grounding terminal 213 are arranged between the second welding portions 218, 228 of the second and third pairs of differential signal terminals 212, 2221, which also increases The shielding effect between the second and third pairs of differential signal terminals 212 and 221 reduces the crosstalk between the second and third pairs of differential signal terminals 212 and 221 , further improving the signal transmission quality of the electrical connector 100 .

另外，由于第一接地端子213设置有两个第一焊接部217，使得第一、第三对差分信号端子211、221的第二焊接部218、228之间及第二、第三对差分信号端子212、221的第二焊接部218、228之间均排布有第一接地端子213的第一焊接部217，从而增加了第一、第二、第三对差分信号端子211、212、221之间的屏蔽效果，降低了差分信号端子211、212、221之间的串扰，有利于改善电连接器100的信号传输品质，第一接地端子213相当于两根接地端子的功效，简化了导电端子2的结构，有利于节省空间。In addition, since the first ground terminal 213 is provided with two first soldering portions 217, between the second soldering portions 218, 228 of the first and third pairs of differential signal terminals 211, 221 and between the second and third pairs of differential signal terminals 211, 221 The first welding part 217 of the first ground terminal 213 is arranged between the second welding parts 218 and 228 of the terminals 212 and 221, thereby adding the first, second and third pairs of differential signal terminals 211, 212 and 221 The shielding effect between them reduces the crosstalk between the differential signal terminals 211, 212, and 221, which is conducive to improving the signal transmission quality of the electrical connector 100. The first ground terminal 213 is equivalent to the effect of two ground terminals, which simplifies the conduction The structure of terminal 2 is beneficial to save space.

综上所述，本发明电连接器100导电端子2的第一、第二、第三焊接部217、218、227、228、229自左向右依次排列为：第一对差分信号端子211的第二焊接部218、第一接地端子213的第一焊接部217、第二接地端子223的第一焊接部227、第三对差分信号端子221的第二焊接部228、电源端子220的第三焊接部229、第一接地端子213的第一焊接部217、第二对差分信号端子212的第二焊接部218。To sum up, the first, second, and third welding portions 217, 218, 227, 228, and 229 of the conductive terminals 2 of the electrical connector 100 of the present invention are arranged in order from left to right: the first pair of differential signal terminals 211 The second soldering portion 218, the first soldering portion 217 of the first ground terminal 213, the first soldering portion 227 of the second ground terminal 223, the second soldering portion 228 of the third pair of differential signal terminals 221, the third soldering portion of the power terminal 220 The soldering portion 229 , the first soldering portion 217 of the first ground terminal 213 , and the second soldering portion 218 of the second pair of differential signal terminals 212 .

遮蔽壳体3包覆于绝缘本体1外部，遮蔽壳体3与舌片14、第一、第二接触部214、224之间形成有收容对接插头的插接孔30，遮蔽壳体3包括顶壁31、与顶壁31相对的底壁32、连接于顶壁31与底壁32之间的两侧壁33及包覆绝缘本体1后端的后盖34。第二本体12的凸板16向上支撑于底壁32上，顶壁31、底壁32及两侧壁33分别设有延伸入插接孔30内的弹片35，两侧壁33向下延伸有固持于电路板200上的安装脚330。The shielding shell 3 covers the outside of the insulating body 1, and an insertion hole 30 for accommodating a docking plug is formed between the shielding shell 3 and the tongue 14, the first and second contact parts 214, 224, and the shielding shell 3 includes a top A wall 31 , a bottom wall 32 opposite to the top wall 31 , two side walls 33 connected between the top wall 31 and the bottom wall 32 , and a rear cover 34 covering the rear end of the insulating body 1 . The convex plate 16 of the second body 12 is upwardly supported on the bottom wall 32, the top wall 31, the bottom wall 32 and the side walls 33 are respectively provided with elastic pieces 35 extending into the insertion hole 30, and the side walls 33 extend downward with The mounting feet 330 are fixed on the circuit board 200 .

本实施方式中，导电端子2的焊接部217、218、227、228、229设置为贴板式结构。在其他实施方式中，导电端子的焊接部也可以设置为穿板式结构，第一端子组也可通过插入方式固定于第一本体上。另外，电源端子的第三焊接部还可以与第一接地端子的第一焊接部相互替换位置，如此也可以达成本发明的目的。In this embodiment, the soldering portions 217 , 218 , 227 , 228 , 229 of the conductive terminal 2 are arranged in a stick-on-board structure. In other embodiments, the soldering portion of the conductive terminal can also be configured as a through-board structure, and the first terminal group can also be fixed on the first body by inserting. In addition, the third welding portion of the power terminal and the first welding portion of the first grounding terminal can also replace each other, so that the purpose of the present invention can also be achieved.

Claims (10)

1.一种电连接器，设有收容对接插头的插接孔，其包括：绝缘本体及设于绝缘本体上的导电端子，所述绝缘本体包括基部及自基部向前凸伸入插接孔内的舌片，导电端子包括若干接地端子及若干对差分信号端子，每一接地端子包括暴露于插接孔内用以连接对接插头的接触部及延伸出绝缘本体的第一焊接部，每一差分信号端子包括暴露于插接孔内用以连接对接插头的接触部及延伸出绝缘本体的第二焊接部，至少一对差分信号端子的两接触部在舌片的宽度方向上相互对齐，所述第一、第二焊接部排列成一排，其特征在于：其中两接地端子的第一焊接部排布于相邻两对差分信号端子的第二焊接部之间。1. An electrical connector, which is provided with an insertion hole for accommodating a mating plug, which includes: an insulating body and a conductive terminal disposed on the insulating body, the insulating body includes a base and protrudes forward from the base into the insertion hole The conductive terminals include several ground terminals and several pairs of differential signal terminals, each ground terminal includes a contact portion exposed in the insertion hole for connecting to the mating plug and a first welding portion extending out of the insulating body, each The differential signal terminal includes a contact portion exposed in the socket hole for connecting to the mating plug and a second welding portion extending out of the insulating body. The two contact portions of at least one pair of differential signal terminals are aligned with each other in the width direction of the tongue, so The first and second soldering portions are arranged in a row, and the feature is that the first soldering portions of the two ground terminals are arranged between the second soldering portions of two adjacent pairs of differential signal terminals. 2.如权利要求1所述的电连接器，其特征在于：所述第二焊接部还排布于所述排两端的最外侧位置。2 . The electrical connector according to claim 1 , wherein the second welding portion is also arranged at the outermost positions at both ends of the row. 3 . 3.如权利要求1所述的电连接器，其特征在于：所述接地端子与差分信号端子的接触部均排布于舌片的同一侧。3. The electrical connector according to claim 1, wherein the contact portions of the ground terminals and the differential signal terminals are arranged on the same side of the tongue. 4.如权利要求1所述的电连接器，其特征在于：所述导电端子还包括电源端子，所述电源端子包括排设于舌片上用以连接对接插头的接触部及延伸出绝缘本体的第三焊接部，所述接地端子包括第一、第二接地端子，差分信号端子包括第一、第二、第三对差分信号端子，所述导电端子包括第一、第二端子组，第一、第二端子组共同构成USB3.0A型插座连接器端子，用以连接USB 3.0A型对接插头，第二端子组为USB 2.0A型插座连接器端子，用以连接USB 2.0A型对接插头，第一端子组在插接孔内依次排列为：所述第一对差分信号端子、第一接地端子、第二差分信号端子，第二端子组在插接孔内依次排列为：所述第二接地端子、第三差分信号端子、电源端子。4. The electrical connector according to claim 1, wherein the conductive terminal further includes a power terminal, and the power terminal includes a contact portion arranged on the tongue for connecting to a mating plug and a contact portion extending out of the insulating body. The third welding part, the ground terminals include first and second ground terminals, the differential signal terminals include first, second, and third pairs of differential signal terminals, the conductive terminals include first and second terminal groups, the first , The second terminal group together constitutes a USB3.0A socket connector terminal for connecting a USB 3.0A docking plug, and the second terminal group is a USB 2.0A socket connector terminal for connecting a USB 2.0A docking plug, The first terminal group is arranged sequentially in the insertion hole as: the first pair of differential signal terminals, the first ground terminal, and the second differential signal terminal; the second terminal group is arranged in sequence in the insertion hole as: the second A ground terminal, a third differential signal terminal, and a power terminal. 5.如权利要求4所述的电连接器，其特征在于：所述第一接地端子的所述第一焊接部设置为一对，该两第一焊接部之间至少排布有第二焊接部、第三焊接部或其他接地端子的第一焊接部中的至少其中之一。5. The electrical connector according to claim 4, characterized in that: the first welding portion of the first grounding terminal is provided as a pair, and at least a second welding portion is arranged between the two first welding portions part, the third welding part or at least one of the first welding part of the other ground terminal. 6.如权利要求4所述的电连接器，其特征在于：所述第一端子组的第一、第二焊接部分别排设于第二端子组的所有第一、第二、第三焊接部的两端外侧，第二端子组的第一、第二、第三焊接部分别相邻排布。6. The electrical connector according to claim 4, wherein the first and second welding parts of the first terminal group are respectively arranged in all the first, second and third welding parts of the second terminal group. The first, second and third welding parts of the second terminal group are arranged adjacent to each other outside the two ends of the part. 7.如权利要求4所述的电连接器，其特征在于：所述接触部包括设于第一端子组上的第一接触部及设于第二端子组上的第二接触部，所述第一接触部设置为平板状结构，第二接触部设置为弹性结构，所述第一、第二接触部共同设于舌片同一侧沿对接插头的插接方向上错开设置，而且第一接触部与第二接触部在舌片的厚度方向上位于不同的高度。7. The electrical connector according to claim 4, wherein the contact portion comprises a first contact portion disposed on the first terminal group and a second contact portion disposed on the second terminal group, the The first contact part is set as a flat structure, and the second contact part is set as an elastic structure. The first and second contact parts are jointly arranged on the same side of the tongue and staggered along the insertion direction of the mating plug, and the first contact The portion and the second contact portion are located at different heights in the thickness direction of the tongue. 8.如权利要求4所述的电连接器，其特征在于：所述第一端子组包括与接触部相连的第一固持部及自第一固持部向下垂直弯折延伸的第一连接部，第一端子组的第一、第二焊接部是自第一连接部向后水平延伸而成，第一接地端子的第一连接部设置为音叉形结构，使得第一接地端子的第一焊接部自第一连接部延伸设置为两个，第二端子端子组的所有焊接部排布于第一接地端子的两第一焊接部之间。8. The electrical connector according to claim 4, wherein the first terminal group comprises a first holding portion connected to the contact portion and a first connecting portion bent vertically downward from the first holding portion , the first and second welding parts of the first terminal group are formed by horizontally extending backward from the first connecting part, and the first connecting part of the first grounding terminal is set as a tuning fork-shaped structure, so that the first welding of the first grounding terminal There are two parts extending from the first connecting part, and all the welding parts of the second terminal group are arranged between the two first welding parts of the first grounding terminal. 9.如权利要求8所述的电连接器，其特征在于：所述第二端子组包括与接触部相连的第二固持部及自第二固持部向下垂直弯折延伸的第二连接部，第二端子组的第一、第二、第三焊接部是自第二连接部向后水平延伸而成，第一连接部向外侧倾斜设置，而第二连接部向内侧倾斜设置。9. The electrical connector according to claim 8, wherein the second terminal group comprises a second holding portion connected to the contact portion and a second connecting portion bent vertically downward from the second holding portion , the first, second and third welding parts of the second terminal group are formed by horizontally extending backward from the second connecting part, the first connecting part is arranged obliquely to the outside, and the second connecting part is arranged obliquely to the inside. 10.如权利要求4所述的电连接器，其特征在于：所述电连接器还包括包覆绝缘本体的遮蔽壳体，遮蔽壳体与舌片、接触部之间形成有插接孔，用以收容USB2.0A型或USB 3.0A型对接插头，所述第一、第二、第三焊接部排成一排并依次排列为：第一对差分信号端子的第二焊接部、第一接地端子的第一焊接部、第二接地端子的第一焊接部、第三对差分信号端子的第二焊接部、电源端子的第三焊接部、第一接地端子的第一焊接部、第二对差分信号端子的第二焊接部；或者依次排列为：第一对差分信号端子的第二焊接部、第一接地端子的第一焊接部、第二接地端子的第一焊接部、第三对差分信号端子的第二焊接部、第一接地端子的第一焊接部、电源端子的第三焊接部、第二对差分信号端子的第二焊接部。10. The electrical connector according to claim 4, characterized in that: the electrical connector further comprises a shielding shell covering the insulating body, an insertion hole is formed between the shielding shell, the tongue piece and the contact portion, Used to accommodate USB2.0A or USB 3.0A docking plugs, the first, second, and third welding parts are arranged in a row and arranged in sequence: the second welding part of the first pair of differential signal terminals, the first The first welding part of the ground terminal, the first welding part of the second ground terminal, the second welding part of the third pair of differential signal terminals, the third welding part of the power terminal, the first welding part of the first ground terminal, the second The second welding part of the differential signal terminal; or arranged in order: the second welding part of the first pair of differential signal terminals, the first welding part of the first ground terminal, the first welding part of the second ground terminal, the third pair of The second welding portion of the differential signal terminal, the first welding portion of the first ground terminal, the third welding portion of the power supply terminal, and the second welding portion of the second pair of differential signal terminals.
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