M408153 五、新型說明： 【新型所屬之技術領域】 本創作提供一種電連接器，尤其是指一種同時具有垂直插 孔方式與表面貼接方式端子的半沉式電連接器。 【先前技術】 在現有的電連接器中’數位式音訊/視訊(DisplayP〇rt)介 面是一種用於家電產品數字電視訊號傳輸的連接裝置，它不僅 可以傳輸高速數字的視頻訊號，還可以同時傳輸數位音頻訊 號’是數字電視產品所必備的連接介面，包括有DisplayPort 插座和與之配合的DisplayPort插頭。現有的DisplayPort介面 電連接器多採用端子焊腳垂直插入印刷線路板上的通孔方式 將電連接器裝設與印刷線路板上，電連接器位於安裝於其上的 印刷線路板的一侧，此種連接方式雖具有較佳的連接可靠性， 但因此不便縮短端子組至印刷線路板的訊號傳輸路徑，尤其是 在而頻傳輸時’傳輸路徑過長時容易產生阻抗不匹配及訊號損 失串音變大的問題。但如需縮短端子組至印刷線路板的訊號傳 輸路徑’較佳的方案是採降低電連接器在印刷線路板上的安裝 向度’但如此需同時對現有板上安裝的連接器的結構進行改進 方能確保連接的安全性及品f的延續性，但究竟制何種方案 才能於縮短傳輪路徑的同時能確保連接的安全性，實為業界所 亟待研究予以解決的問題。 有鑑於此，本案創作人針對上述缺陷與不足，經過長期研 3 M408153 究’並配合學理的運用，終補設&-魏_決上述不足和 缺陷的實用新型設計方案。 【新型内容】 本創作的主要目的在於提供一種電連接器，該電連接器的 結構可沉設於印刷線路板。 本創作的另一目的在於提供一種電連接器，利用端子焊接 部採不同的複數排排列及連接方式設計達到利於高速數位訊 號傳輸。 本創作的再一目的在於提供一種電連接器，通過利用模塊 化的部件及簡易的組裝方式以簡化製程，並提供更佳的結合效 果及耐插拔特性，確保電連接的安全性。 為達到上述之目的，本創作可通過以下技術方案加以實 現：一種電連接器，包括絕緣本體、遮蔽殼體及第一組端子與 第二組端子。其中，該絕緣本體上具一基座，該基座中央向前 延伸設有一舌板；舌板的上下表面分別等距設有多支端子容置 槽，延伸貫穿至絕緣本體前後表面；又於該基座的上表面前端 且沿前端面的中間部位凹設有凹台。該絕緣本體還包括從該基 座下部側邊向後延伸形成的一後座，該後座具有兩相對側壁及 一底壁，兩相對侧壁的頂端分別具有卡口及定位柱，前端具有 突出的卡柱及凹入的卡槽’該後座在與連接器插接方向的正交 方向上的高度小於基座的高度，該後座兩相對侧壁間的寬度大 於基座的寬度’使電連接器能沉設於印刷線路板。第一組端子 4 M408153 之焊接部呈相互平行的兩列設置，分別以垂直插孔（DIp)方 式對應安裝於印刷線路板的上的通孔；第二組端子的焊接部呈 平行於印刷線路板的一列設置’以表面貼接（SMT)方式連接 印刷線路板。 該遮蔽殼體具有一前端部與一後端部，於遮蔽殼體前端部 之頂部後端設有至少一個從遮蔽殼體向後突出的第一抵持 部，該第一抵持部的位置是與絕緣本體上的凹台相對應，可防 止前端部相對絕緣本體發生鬆動位移，並可提升電連接器在插 拔方向的正交方向上的插拔耐受力。該遮蔽殼體後端部具有一 底臂及從底臂兩相對侧端延伸出的兩相對側臂，兩相對側臂的 頂端分別具有卡製彈片及接地腳。該前端部遮蔽該基座的前 方’該後卿之兩相制臂及底臂分舰蔽該後座之兩相對側 壁及底壁，且該後端部相對_臂之_寬度大於前端部之每 一對兩相對側壁之間的寬度。 該遮蔽殼體還包括一抵持件，該抵持件具有一平板部，平 板部後端中間部位具有第二抵持部，沿平板部兩側邊垂直延伸 並弯折形成的-對夾持支臂，平板部前端兩侧邊分別向外延伸 騎形成有彈性臂。平板部前端兩侧邊的彈性臂形成位於遮蔽 殼體對插口-側兩邊的彈性自由端’且彈性臂之主體可回彈地 位於對插口朝向對接連接器的一侧。 多個導電端子分別排列並加工成型為第—端子組與第二 端子組’該第-組端子與第二組端子分顺第—端子座及第二 5 M408153 端子座經嵌射成型，每個導電端子分別具有第一接觸部，第一 焊接部，其前端的第一接觸部以等同間距布設於舌板之上表面 上，若干第一端子之焊接端分為複數列平行排列。一印刷線路 板上設有可供第一組端子之焊接部尾端對應穿設的通孔 (hl，h2) ’可供第一組端子之焊接部尾端以垂直插孔（DIp) 的方式焊接到所述印刷線路板。第二組端子的焊接部與印刷線 路板平行，該兩列通孔一侧還具有一列電路觸點，可供第二組 導電端子的焊接部尾端以表面貼接（SMT)的方式焊接到印刷 線路板上的電路觸點。 該種佈設方式使每對接地端子的焊接段並非位於兩列訊 旒端子的焊接段之間，所以接地端子對訊號端子的干擾降低， 連接器的訊號傳輸性能相對地提升。 絕緣本體後座兩相對側壁的頂端的卡口與遮蔽殼體後端 部兩相對侧臂的頂端的卡製彈片相卡合，絕緣本體基座前端的 卡柱將遮祕體前端部之_兩邊卡製翔，使舰殼體後端 部包覆於絕緣本體後座外部並相對固定，並使遮蔽殼體前端部 與絕緣本體之基座她合，可使舰殼難·本體配合緊密 f可防止_本體麵插時祕遮紐赚纽移，·該後座前 端兩側的卡柱及抵持件兩側邊的夾持支臂可限製電連接器相 對印刷線路板驗移，增加了連接的安全性。 該抵持件之平板部與遮蔽殼體前端部之頂壁相貼合，該平 板部後端的第二抵持部置人絕緣本體之凹臺，平板部兩側邊的 6 M408153 一對夾持支臂分別貼合遮蔽殼體前端部之左右兩侧壁外側，且 該對夾持支臂的末端分別插入絕緣本體後座前端兩側的卡 槽，該抵持件可通過與絕緣本體配合固持該遮蔽殼體前端部， 防止遮蔽殼體前端部相對絕緣本體產生鬆動位移；該抵持件之 彈性臂可供對接連接器插接時產生彈性變形，可起到消抵對插 • 時對接連接器插置所產生力道的作用，從而達到防止絕緣本體 在對插時發生鬆動及受損的情事。 Φ 【實施方式】 為便於詳細說明本創作的技術手段及其功效，現茲配合附 圖結合本創作的較佳實施例’對本創作詳加說明如下，惟此具 體實施例只為方便綱本麟的結構，並未縣創作加以任何 限制。 請參閱第1〜4 ®所示，林創作電連接器⑽之一實施 例，該電連接器1〇〇包括絕緣本體i、遮蔽殼體2、第一組端 • 子3與第二組端子4、後蓋5，及安裝於其上的印刷線路板6， 其中，s亥絕緣本體1上具一基座u，該基座u大致呈一矩形 狀’其前端s in令央向前延伸設有一薄板狀的舌板ιΐ2 •舌 板112的上下表面分別等距設有多個互相平行的端子容置槽 113 ’該等端子槽113延伸貫穿至絕緣本體1之基座U前後^ 面’·又於該基座11的前端面⑴上部的中間部位凹設有凹台 14 ’該絕緣本體1還包括從該基座n下部側邊向後延伸形成 的一後座12 ’該後座12具有兩相對側壁121及一底壁 7 該後座12在與連接器插接方向的正交方向上的高度小於基座 11的南度’該後座12兩相對繼121間的寬度大於基座u 的寬度，使電連接器100能沉設於印刷線路板6 ;該後座12 兩相對側壁121的頂端分別具有卡口 123及定位柱124，前端 具有突出的卡柱125及凹入的卡槽126。 該遮蔽殼體2由金屬板一體衝壓形成，包括一前端部21 與一後端部22，該前端部21大致呈中空的方框形，具有頂壁 211、底壁212和將兩者連接起來的兩相對側壁213，後端部 22是從前端部21後緣撕裂並彎折形成的，具有兩相對側臂221 及將兩者連接起來的一底臂222，該前端部21遮蔽該基座11 的前端面111前方，該後端部22之兩相對侧臂221及底臂222 分別遮蔽該後座12之兩相對側壁121及底壁122，且該後端 部22相對兩侧臂221之間的寬度大於前端部21之兩相對侧壁 213之間的寬度。 該遮蔽殼體2其前端為對插口 20，用以供對接連接器插 設’所述前端部21在頂壁211底壁212和兩相對側壁213上 均設有若干卡口彈片214,該等卡口彈片214用於與對接連接 器對插時增加對插的保持力，於遮蔽殼體2前端部21之頂部 後端設有至少一個從遮蔽殼體2向後突出的第一抵持部215， 該第一抵持部215的位置是與絕緣本體1上的凹台14相對 應’可防止所述前端部21相對絕緣本體1發生鬆動位移，並 提升電連捿器100在插拔方向的正交方向上的插拔耐受力。 該遮蔽殼體2後端部22兩相對側臂221的頂端分別具有 卡製彈片223及接地腳224。 該遮蔽殼體2還包括-抵持件23，該抵持件23具有一平 板部23卜平板部231後端中間部位具有第二抵持部说，沿 平板部231兩侧邊垂直延伸並彎折形成的一對夾持支臂说， 平板部231前端兩側邊分別向外延伸f折形成有彈性臂⑽。 多個導電端子分卿列並加工成型為第―端子組3與第 二端子組4,該第-組端子3與第二組端子4中的若干第一端 子3i與第二端子41分別與第一端子座％及第二端子座42 經嵌射成型’每個第-端子31與第二端子41分別具有第一接 觸部311與第-焊接部312，第二接觸部4ΐι與第二焊接部 412 ’該第-接觸部311與該第二接觸部4ΐι分別容納於舌板 112上表面與下表面的端子容置槽ιΐ3 μ，第一焊接部阳是 從第-端子座32的後端面伸出並_而形成，傭直於安裝 於其上的印刷線路板6 ’因若干第—端子％從第—端子座％ 的後端面伸出的部位不同’伸出後第—焊接部312彎折的部位 不同，使若干第-端子31之第一焊接部312分為平行的兩列 排歹j其_一排设置為4支端子，另一排設置為6支端子。一 印刷線路板6上設有可供第—嬋接部312對應穿設的通孔 (hl，h2)，可供第—組端子3以垂直插孔⑽p)的方式焊接 到所述印刷線路板6。該印刷線路板6上兩列通孔㈨，⑵的 侧還具有列與上述通孔平行設置的電路觸點（si)。該印 M408153 刷線路板6兩齡別具有可供絕緣本體】之定位柱⑵播入的 定位孔61及遮蔽殼體2之接地腳217插入的安裝孔似。 第-為^子4之第一谭接部412是由該第二端子4】從第 二端子座42的後端面伸出並彎折而形成，第二焊接部412系 平行于安裝於其上的_線路板6，可供帛二組舒4 貼接（SMT)的方式對應焊接到所述印刷線路板6上的電路觸 點（si)。 一後蓋5表面具有可供第一組端子3之第一焊接部312 對應穿設的成兩列剩的端子通孔5卜且該後蓋可裝設於絕 緣本體1後座12尾部，確保將絕緣本體丨後座12與基座u 圍成的空間封蓋密閉。 凊參閱第5-6圖所示，在本實施例的電連接器中一共有 20支端子，分別被賦予編號卜况，其中設於舌板112上表面 的第一組端子3的第一焊接部312分為平行的兩列採垂直插孔 (DIP)方式焊接安裝於印刷線路板上對應的兩列通孔中，其中 的第3、5、15、17號端子為第一列，其焊接端對應穿過電路 板4的第一列對應通孔hi，第1、7、9、11、13、19號端子 為第二列’也就是中間一列，其焊接端對應穿過電路板4的第 二列對應通孔 h2，第 2、4、6、8、10、12、14、16、18、20 號端子為第三列，其第二焊接端為採表面貼接（SMT)方式焊 接于印刷線路板上的電路觸點。該2〇支端子中包含4對訊號 端子’依次為3、5、15、17、9、1卜10、12，6支接地端子 M408153 座12後部，然後可將電連接器1〇〇第一焊接端312及第二焊 接端412焊接到印刷線路板6上對應的通孔（hl，h2)與電路 觸點（si )’此時絕緣本體丨之定位柱124插入印刷線路板上 的定位孔61，遮蔽殼體2之接地腳224插入印刷線路板6上 的女裝孔62焊接，使電連接器1〇〇與印刷線路板6的電性連 接穩固且具有良好的遮罩接地效果。該後座12前端兩側的卡 柱125及抵持件23兩侧邊的夾持支臂233可限製電連接器1〇〇 相對印刷線路板6的位移，增加了連接的安全性。 該後座12在與連接器插接方向的正交方向上的高度小於 基座11的鬲度，該後座12兩相對侧壁121間的寬度大於基座 11的寬度，使得電連接器100能沉設於印刷線路板6，因此縮 紐第一端子組3至印刷線路板6的傳輸路徑，尤其是在高頻傳 輸時’可以更進-步地減個傳輸雜過長時容易產生的阻抗 不匹配，訊號損失及有效降低串音變大的問題。 該抵持件23之平板部231與遮蔽殼體2前端部21之頂壁 211相貼合，該平板部231後端的第二抵持部232置入絕緣本 體1之凹臺114，平板部231兩側邊的一對夾持支臂说分別 貼合遮蔽殼體2前端部21之左右兩側壁213外側，且該對夾 持支臂233的末端分別插入絕緣本體1後座12前端兩側的卡 槽126，且與後座12前端突出的卡柱125形成干涉限位，該 _、 了通過與絕緣本體1配合固持該遮蔽殼體2前端部 21 ’防止遮蔽殼體2前端部21相對絕緣本體！產生鬆動位移； 12 平板部231前端兩側邊的彈性臂234形成位於遮蔽殼體2對插 口 20 -側兩邊的彈性自㈣，且彈性臂2別之主體可回彈地 位於對插口 20朝向對接連接器的一側，因為電連接器在對接 操作時’操作者所施的力道將因人而異，當力道過大時，對接 連接器的金屬殼體會撞擊到電連接器1〇〇的絕緣本體丨，長久 如此’會使絕緣本體1在遮蔽殼體2内發生鬆動及受損產生微 細的碎屑，碎屑容易造成阻塞而影響到電器訊號的傳輸品質。 影響電性連接的安全性可靠性，該抵持件23之彈性臂234可 供對接連接器插接時產生彈性變形，可起到消抵對插時對接連 接器插置力道的作用，從而達到防止絕緣本體1在對插時發生 鬆動及受損的情事。 本創作的重點在於：該後座12在與連接器插接方向的正 交方向上的高度小於基座11的高度，該後座12兩相對側壁 ⑵間的寬度大於基座Π的寬度，使電連接器1〇〇能沉設於 印刷線路板6，藉此可使導電端子之傳輸路徑縮短，避免傳輸 路徑過長時容易產生阻抗不匹配及訊號損失串音變大的問 題；利用焊接端分三列排列，其中的兩列（hl，h2)採垂直插 孔（DIP)方式，一列（si)採表面貼接（SMT)方式連接印 刷線路板6 ’通過兩種方式結合使用可便利簡化端子佈局，減 少於高頻訊號傳輸時產生的串音；遮蔽殼體2、抵持件23、絕 緣本體1、印刷線路板6相互配合的結構可使遮蔽殼體2、抵 持件23與絕緣本體1、印刷線路板6配合緊密，提高連接的 ^王II㈤時提向電連接器1〇〇對頻繁插拔的耐受力，抵持件 、彈ί·生臂234可起到消抵對插時對接連接器插置所產生力 道的作用’從_止絕緣本體！發生鬆動損壞。 為使熟悉該項技術者如實瞭解本創作精神之實施創作目 的與功效，所舉之實施例及附圖僅是對本創作加以說明，並不 對本創作加以任何限製，本創作還可尚有其他的變化實施方 式’所以凡熟悉此項技術者在不脫離本案創作精神下進行其他 樣式實施’均應視為本案申請專利範圍的等效實施。 【圖式簡單說明】 第1圖為本創作一實施例之分解示意圖； 第2圖為本創作一實施例之絕緣本體立體示意圖； 第3圖為本創作一實施例之遮蔽殼體立體示意圖； 第4圖為本創作一實施例之裝配後的侧視圖； 第5圖為本創作一實施例之第一組端子排列方式俯視示意圖； 第6圖為本創作一實施例之印刷線路板通孔及對應端子腳位 示意圖； 第7圖為本創作一實施例之電連接器安裝於印刷線路板的示 意圖， 第8圖為本創作一實施例之電連接器安裝於印刷線路板的另 一角度的示意圖； 第9圖為本創作一實施例之電連接器安裝於印刷線路板的又 一角度的示意圖。 M408153 【主要元件符號說明】 100—電連接器 1 一絕緣本體 11—基座 111—前端面 112—舌板 113—端子容置槽 14—凹台 12—後座 121—#J 壁 122—底壁 123—卡口 124—定位柱 125—卡柱 126—卡槽 2—遮蔽殼體 20 —對插口 21—前端部 211—頂壁 212—底壁 213—側壁 214—卡口彈片 215—第一抵持部 22—後端部 221—側臂 222—底臂 223—卡製彈片 224—接地腳 23—抵持件 231—平板部 232—第二抵持部 233—夾持支臂 234—彈性臂 3—第一組端子 31—第一端子 311—第一接觸部 312—第一焊接部 32—第一端子座 4 一第二組端子 41 一第二端子 411—第二接觸部 412—第二焊接部 15 M408153 42—第二端子座 51—端子通孔 (hl，h2) —通孔 61—定位孔 5— 後盖 6— 印刷線路板 (si)—電路觸點 62—安裝孔M408153 V. New description: [New technical field] The present invention provides an electrical connector, especially a semi-sink electrical connector having a vertical insertion hole and a surface-mounting terminal. [Prior Art] In the existing electrical connector, the 'Digital Audio/Video (DisplayP〇rt) interface is a connection device for digital TV signal transmission of home appliances, which can not only transmit high-speed digital video signals, but also simultaneously The transmission of digital audio signals is a necessary interface for digital TV products, including DisplayPort sockets and DisplayPort plugs. The existing DisplayPort interface electrical connector is generally provided with a through-hole of the terminal soldering leg vertically inserted into the printed circuit board to mount the electrical connector on the printed circuit board, and the electrical connector is located on one side of the printed circuit board mounted thereon. Although such a connection method has better connection reliability, it is inconvenient to shorten the signal transmission path of the terminal group to the printed circuit board, especially in the case of frequency transmission, when the transmission path is too long, impedance mismatch and signal loss string are easily generated. The problem of louder sounds. However, if it is necessary to shorten the signal transmission path of the terminal group to the printed circuit board, the preferred solution is to reduce the mounting orientation of the electrical connector on the printed circuit board. However, it is necessary to simultaneously construct the structure of the connector mounted on the existing board. Improvements can ensure the security of the connection and the continuity of the product. However, it is a problem that the industry needs to solve and solve the problem of ensuring the safety of the connection while shortening the transmission path. In view of this, the creators of this case have responded to the above-mentioned defects and deficiencies, and after long-term research, and with the use of academics, they finally set up the utility model design scheme of the above-mentioned deficiencies and defects. [New content] The main purpose of this creation is to provide an electrical connector that can be mounted on a printed circuit board. Another object of the present invention is to provide an electrical connector that utilizes a plurality of different rows and connections in the terminal soldering portion to facilitate high-speed digital signal transmission. A further object of the present invention is to provide an electrical connector that simplifies the process by utilizing modular components and simple assembly, and provides better bonding and plug-in resistance to ensure electrical connection safety. In order to achieve the above object, the present invention can be realized by the following technical solutions: an electrical connector comprising an insulative housing, a shielding housing, and a first set of terminals and a second set of terminals. Wherein, the insulating body has a base, and a base plate extends forwardly from the center of the base; the upper and lower surfaces of the tongue plate are respectively equidistantly provided with a plurality of terminal receiving grooves extending through the front and rear surfaces of the insulating body; A recessed recess is recessed in the front end of the upper surface of the base and along the intermediate portion of the front end surface. The insulative housing further includes a rear seat extending rearward from a lower side of the base. The rear seat has two opposite side walls and a bottom wall. The top ends of the opposite side walls respectively have a bayonet and a positioning post, and the front end has a protruding end. The post and the recessed card slot 'the height of the rear seat in the orthogonal direction of the connector insertion direction is smaller than the height of the base, and the width between the opposite side walls of the rear seat is greater than the width of the base' The connector can be mounted on a printed circuit board. The soldering portions of the first group of terminals 4 M408153 are arranged in two parallel rows, respectively corresponding to the through holes mounted on the printed circuit board in a vertical jack (DIp) manner; the soldering portions of the second group of terminals are parallel to the printed circuit A column of the board is set up to connect the printed wiring board in a surface mount (SMT) manner. The shielding shell has a front end portion and a rear end portion, and at the top rear end of the front end portion of the shielding shell, at least one first abutting portion protruding rearward from the shielding shell is disposed, and the position of the first resisting portion is Corresponding to the concave platform on the insulating body, the front end portion can be prevented from loosely displaced relative to the insulating body, and the insertion and extraction resistance of the electrical connector in the orthogonal direction of the insertion and removal direction can be improved. The rear end portion of the shielding shell has a bottom arm and two opposite side arms extending from opposite side ends of the bottom arm, and the top ends of the opposite side arms respectively have a locking elastic piece and a grounding leg. The front end portion shields the front side of the base. The two-phase arm and the bottom arm of the rear-end arm cover the opposite side walls and the bottom wall of the rear seat, and the width of the rear end portion relative to the arm is greater than the front end portion. The width between each pair of opposing sidewalls. The shielding shell further comprises a resisting member, the resisting member has a flat plate portion, and the intermediate portion of the rear end of the flat plate portion has a second abutting portion, and the pair of clamping portions are vertically extended and bent along the two sides of the flat plate portion. The arm and the two sides of the front end of the flat portion are respectively extended outward to form a resilient arm. The resilient arms on the sides of the front end of the flat portion form elastic free ends on the socket-side sides of the shield housing and the body of the resilient arms are resiliently located on the side of the pair of sockets facing the mating connector. The plurality of conductive terminals are respectively arranged and processed into a first terminal group and a second terminal group. The first group terminal and the second group terminal are separated from the first terminal block and the second 5 M408153 terminal block are in-line formed. The conductive terminals respectively have a first contact portion, and the first contact portion of the first soldering portion is disposed on the upper surface of the tongue plate at an equal interval, and the soldering ends of the plurality of first terminals are arranged in parallel in a plurality of columns. A printed circuit board is provided with a through hole (hl, h2) for the tail end of the soldering portion of the first group of terminals. The tail end of the soldering portion of the first group of terminals is a vertical jack (DIp). Soldering to the printed wiring board. The soldering portion of the second group of terminals is parallel to the printed circuit board, and the two rows of through holes further have a row of circuit contacts, and the tail ends of the soldering portions of the second group of conductive terminals are soldered to the surface by way of surface mount (SMT) Circuit contacts on the printed circuit board. The laying method is such that the welding section of each pair of grounding terminals is not located between the welding sections of the two rows of signal terminals, so the interference of the grounding terminal to the signal terminals is reduced, and the signal transmission performance of the connector is relatively improved. The bayonet of the top end of the opposite side walls of the insulative housing is engaged with the locking elastic piece at the top end of the opposite side arm of the rear end of the shielding body, and the post at the front end of the insulative housing base will cover the front end of the body The card is made so that the rear end portion of the ship shell is wrapped around the outer seat of the insulating body and relatively fixed, and the front end portion of the shielding shell is combined with the base of the insulating body, so that the ship shell is difficult to fit tightly. Prevent the _ body surface plugging when the secret visor gains a new shift, · the post on both sides of the front end of the rear seat and the clamping arms on both sides of the resisting member can limit the electrical connector to the printed circuit board to check the movement, and increase the connection Security. The flat portion of the resisting member is in contact with the top wall of the front end portion of the shielding shell, and the second abutting portion at the rear end of the flat portion is placed on the concave platform of the insulating body, and the pair of 6 M408153 on both sides of the flat portion is clamped. The arms are respectively attached to the outer sides of the left and right side walls of the front end portion of the shielding shell, and the ends of the pair of clamping arms are respectively inserted into the card slots on the two sides of the front end of the rear seat of the insulating body, and the resisting member can be retained by the insulating body. The front end portion of the shielding shell prevents the front end portion of the shielding shell from being loosely displaced relative to the insulating body; the elastic arm of the resisting member is elastically deformed when the mating connector is inserted, and can be used to offset the docking and docking connection. The action of the force generated by the insertion of the device prevents the insulation body from loosening and being damaged during the insertion. Φ [Embodiment] In order to facilitate the detailed description of the technical means and the function of the present invention, the present invention will be described in detail with reference to the accompanying drawings in conjunction with the preferred embodiment of the present invention, but the specific embodiment is only for convenience. The structure does not impose any restrictions on county creation. Referring to an embodiment of the first electrical connector (10) shown in FIGS. 1 to 4, the electrical connector 1 includes an insulative housing i, a shielding housing 2, a first set of terminals, a sub-3 and a second set of terminals. 4, a back cover 5, and a printed circuit board 6 mounted thereon, wherein the shai insulating body 1 has a pedestal u, the pedestal u is substantially rectangular-shaped, and its front end s in extends forward A thin plate-shaped tongue plate ι 2 is provided. • The upper and lower surfaces of the tongue plate 112 are equidistantly disposed with a plurality of mutually parallel terminal receiving grooves 113. The terminal grooves 113 extend through the base U of the insulating body 1 to the front and rear surfaces. Further, a recess 14 is recessed in an intermediate portion of the upper portion of the front end surface (1) of the base 11. The insulative housing 1 further includes a rear seat 12 extending rearward from a lower side of the base n. The rear seat 12 has Two opposite side walls 121 and a bottom wall 7. The height of the rear seat 12 in the orthogonal direction of the connector insertion direction is smaller than the south degree of the base 11'. The width of the rear seat 12 between the two opposite ends 121 is larger than the base u. The width of the electrical connector 100 can be placed on the printed circuit board 6; the top ends of the two opposite sidewalls 121 of the rear seat 12 have Port 123 and the positioning post 124, having a distal end projecting post card 125 and a concave slot 126. The shielding shell 2 is integrally stamped from a metal plate and includes a front end portion 21 and a rear end portion 22. The front end portion 21 has a substantially hollow square shape, and has a top wall 211, a bottom wall 212, and a connection therebetween. The two opposite side walls 213, the rear end portion 22 is formed by being torn and bent from the trailing edge of the front end portion 21, and has two opposite side arms 221 and a bottom arm 222 connecting the two, the front end portion 21 shielding the base In front of the front end surface 111 of the seat 11, the opposite side arms 221 and the bottom arm 222 of the rear end portion 22 respectively shield the opposite side walls 121 and the bottom wall 122 of the rear seat 12, and the rear end portion 22 is opposite to the side arms 221 The width between them is greater than the width between the opposite side walls 213 of the front end portion 21. The shielding housing 2 has a front end of the pair of sockets 20 for inserting the mating connector. The front end portion 21 is provided with a plurality of bayonet elastic pieces 214 on the bottom wall 212 of the top wall 211 and the opposite side walls 213. The bayonet elastic piece 214 is configured to increase the retaining force of the plugging when the mating connector is inserted, and at the top rear end of the front end portion 21 of the shielding shell 2 is provided with at least one first abutting portion 215 protruding rearward from the shielding shell 2 . The position of the first abutting portion 215 corresponds to the recess 14 on the insulative housing 1 to prevent the front end portion 21 from being loosely displaced relative to the insulative housing 1 and to improve the plugging direction of the electrical connector 100. Plug-in tolerance in orthogonal directions. The front ends of the opposite side arms 221 of the rear end portion 22 of the shielding case 2 respectively have a locking elastic piece 223 and a grounding leg 224. The shielding shell 2 further includes a resisting member 23 having a flat plate portion 23. The rear end portion of the flat plate portion 231 has a second abutting portion, and extends vertically along both sides of the flat plate portion 231. A pair of clamping arms formed by folding means that the two sides of the front end of the flat plate portion 231 are respectively extended outwardly to form a resilient arm (10). The plurality of conductive terminals are divided and processed into a first terminal group 3 and a second terminal group 4, and the first terminal 3i and the second terminal 41 of the first group terminal 3 and the second group terminal 4 are respectively respectively The one terminal block % and the second terminal block 42 are insert-molded. Each of the first terminal 31 and the second terminal 41 has a first contact portion 311 and a first soldering portion 312, and a second contact portion 4ΐ and a second solder portion. The first contact portion 311 and the second contact portion 4ΐ are respectively accommodated in the terminal receiving grooves ι 3 μ of the upper surface and the lower surface of the tongue plate 112, and the first welded portion is protruded from the rear end surface of the first terminal block 32. Formed and formed, the printed circuit board 6' installed on the printed circuit board 6' is different from the rear end surface of the first terminal block % by a plurality of first terminals %. The positions of the first welding portions 312 of the plurality of first terminals 31 are divided into two parallel rows of rows, which are arranged in four rows, and the other row is provided as six terminals. A printed circuit board 6 is provided with a through hole (hl, h2) through which the first splicing portion 312 can be correspondingly connected, and the first set of terminals 3 can be soldered to the printed circuit board in a manner of a vertical jack (10) p). 6. The two rows of through holes (9) on the printed wiring board 6 and the side of the (2) further have circuit contacts (si) arranged in parallel with the through holes. The printing M408153 brush circuit board 6 has a positioning hole 61 into which the positioning post (2) of the insulating body can be inserted, and a mounting hole into which the grounding leg 217 of the shielding case 2 is inserted. The first splicing portion 412 of the first portion 4 is formed by the second terminal 4 extending from the rear end surface of the second terminal block 42 and bent, and the second soldering portion 412 is parallel to the mounting thereon. The circuit board 6 is adapted to be soldered to the circuit contacts (si) on the printed circuit board 6 in a second set of SMT. A rear cover 5 has two rows of terminal through holes 5 for the first soldering portions 312 of the first set of terminals 3 to be correspondingly disposed, and the rear cover can be installed at the rear of the rear seat 12 of the insulative housing 1 to ensure The insulating body 丨 rear seat 12 and the space cover enclosed by the pedestal u are sealed. Referring to Figures 5-6, in the electrical connector of the present embodiment, there are a total of 20 terminals, each of which is assigned a number, wherein the first welding of the first set of terminals 3 provided on the upper surface of the tongue 112 is performed. The portion 312 is divided into two parallel rows of vertical jacks (DIP) for soldering and mounting on the corresponding two rows of through holes on the printed circuit board, wherein the terminals 3, 5, 15, and 17 are the first column, and the soldering is performed. The end corresponds to the first column corresponding to the through hole hi through the first row of the circuit board 4, and the terminals No. 1, 7, 9, 11, 13, and 19 are the second column 'that is, the middle column, and the soldering end thereof corresponds to the circuit board 4 The second column corresponds to the through hole h2, the terminals 2, 4, 6, 8, 10, 12, 14, 16, 18, 20 are the third column, and the second welded end is the surface-mounting (SMT) welding. Circuit contacts on a printed circuit board. The 2 〇 terminal includes 4 pairs of signal terminals '3, 5, 15, 17, 9, 1 Bu 10, 12, 6 grounding terminals M408153 12 rear, then the electrical connector 1 〇〇 first The soldering end 312 and the second soldering end 412 are soldered to the corresponding through holes (hl, h2) and the circuit contacts (si) on the printed circuit board 6. At this time, the positioning posts 124 of the insulating body are inserted into the positioning holes on the printed circuit board. 61. The grounding leg 224 of the shielding housing 2 is inserted into the female hole 62 of the printed circuit board 6, so that the electrical connection between the electrical connector 1 and the printed wiring board 6 is stable and has a good mask grounding effect. The post 125 on both sides of the front end of the rear seat 12 and the clamping arms 233 on both sides of the resisting member 23 can restrict the displacement of the electrical connector 1 to the printed wiring board 6, thereby increasing the safety of the connection. The height of the rear seat 12 in the orthogonal direction of the connector insertion direction is smaller than the width of the base 11 , and the width between the opposite side walls 121 of the rear seat 12 is greater than the width of the base 11 , so that the electrical connector 100 It can be placed on the printed circuit board 6, so that the transmission path of the first terminal group 3 to the printed circuit board 6 of the reaming, especially when transmitting at a high frequency, can be more easily generated when the transmission is too long. Impedance mismatch, signal loss and effective reduction of crosstalk. The flat portion 231 of the resisting member 23 is in contact with the top wall 211 of the front end portion 21 of the shielding case 2, and the second abutting portion 232 at the rear end of the flat portion 231 is inserted into the recess 114 of the insulative housing 1, and the flat portion 231 The pair of clamping arms on the two sides of the shielding housing 2 are respectively respectively attached to the outer sides of the left and right side walls 213 of the front end portion 21 of the shielding housing 2, and the ends of the pair of clamping arms 233 are respectively inserted into the front ends of the rear seat 12 of the insulating body 1. The card slot 126 forms an interference limit with the post 125 protruding from the front end of the rear seat 12, and the front end portion 21 of the shield case 2 is prevented from being insulated from the front end portion 21 of the shield case 2 by being engaged with the insulative housing 1 Ontology! The elastic arm 234 on both sides of the front end of the flat portion 231 forms an elastic self (four) on the two sides of the shielding housing 2 on the side of the socket 20, and the main body of the elastic arm 2 is reboundably located at the opposite side of the socket 20 One side of the connector, because the electric connector is in the docking operation, the force applied by the operator will vary from person to person. When the force is too large, the metal shell of the mating connector will hit the insulating body of the electrical connector 1〇〇.丨, for a long time, this will cause the insulating body 1 to loosen and be damaged in the shielding case 2 to generate fine debris, which is likely to cause blockage and affect the transmission quality of the electrical signal. Affecting the safety reliability of the electrical connection, the elastic arm 234 of the resisting member 23 can be elastically deformed when the docking connector is inserted, and can function to eliminate the insertion force of the docking connector during the insertion, thereby achieving Prevent the insulation body 1 from loosening and being damaged during the insertion. The focus of the present invention is that the height of the rear seat 12 in the orthogonal direction of the connector insertion direction is smaller than the height of the base 11, and the width between the opposite side walls (2) of the rear seat 12 is greater than the width of the base cymbal. The electrical connector 1 can be disposed on the printed circuit board 6, thereby shortening the transmission path of the conductive terminal, avoiding the problem that the impedance mismatch and the signal loss crosstalk become large when the transmission path is too long; Arranged in three columns, two columns (hl, h2) adopt vertical jack (DIP) mode, and one column (si) adopts surface mount (SMT) connection to printed circuit board 6'. The terminal layout reduces the crosstalk generated when the high frequency signal is transmitted; the shielding housing 2, the resisting member 23, the insulating body 1, and the printed circuit board 6 cooperate with each other to make the shielding shell 2, the resisting member 23 and the insulation The body 1 and the printed circuit board 6 are closely matched to improve the resistance of the electrical connector 1 to the frequent plugging and unplugging when the connecting king II (5) is connected, and the resisting member and the elastic arm 234 can be offset. When the plug-in connector is inserted, the force generated by the plug connector is inserted. '_ Stop from the insulating body! Loose damage has occurred. In order to make the person familiar with the technology understand the creative purpose and effect of the creative spirit, the embodiments and the drawings are only for explaining the creation, and there is no restriction on the creation. There are still other works in this creation. The change implementation method 'so all those who are familiar with the technology to carry out other styles without departing from the spirit of the case' should be regarded as the equivalent implementation of the scope of patent application in this case. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an embodiment of the present invention; FIG. 2 is a perspective view of an insulating body according to an embodiment of the present invention; 4 is a side view of an assembled embodiment of the present invention; FIG. 5 is a top plan view showing a first group of terminal arrangement patterns according to an embodiment of the present invention; FIG. 6 is a printed circuit board through hole according to an embodiment of the present invention; And a corresponding terminal pin diagram; FIG. 7 is a schematic view of the electrical connector of the present embodiment mounted on a printed circuit board, and FIG. 8 is another angle of the electrical connector of the present embodiment mounted on the printed circuit board. FIG. 9 is a schematic view showing another angle of the electrical connector of the present embodiment mounted on a printed circuit board. M408153 [Description of main components] 100-electrical connector 1 an insulative housing 11 - base 111 - front end surface 112 - tongue 113 - terminal receiving groove 14 - recess 12 - rear seat 121 - #J wall 122 - bottom Wall 123 - bayonet 124 - positioning post 125 - post 126 - card slot 2 - shielding housing 20 - pair of socket 21 - front end portion 211 - top wall 212 - bottom wall 213 - side wall 214 - bayonet spring 215 - first Resisting portion 22 - rear end portion 221 - side arm 222 - bottom arm 223 - locking elastic piece 224 - grounding leg 23 - resisting member 231 - flat plate portion 232 - second abutting portion 233 - clamping arm 234 - elastic Arm 3 - first set of terminals 31 - first terminal 311 - first contact portion 312 - first soldering portion 32 - first terminal block 4 - second set of terminals 41 - second terminal 411 - second contact portion 412 - 2 soldering portion 15 M408153 42 - second terminal block 51 - terminal through hole (hl, h2) - through hole 61 - positioning hole 5 - back cover 6 - printed wiring board (si) - circuit contact 62 - mounting hole