M419307 五、新型說明： 【新型所屬之技術領域】 本創作涉及一種連接器，尤其涉及一種可有效防止電磁干 擾之電連接器。 【先前技術】 如第一圖所示，一種電連接器100’包括一絕緣本體 10’ 、組裝於絕緣本體10’的複數端子20’及包覆於絕緣本 體10’外的殼體30’ 。殼體30’與絕緣本體10’圍成一插接 孔（圖中未示），絕緣本體10’上開設有與插接孔連通的複數端 子槽（圖中未示）。複數端子20’皆具有一固持部（圖中未標示） 及從固持部一端彎折延伸形成的一焊接腳21’ ，該複數端子 20’分別收容於一端子槽内，焊接腳21’延伸出絕緣本體 10’ 外。 惟，上述習知的電連接器100’ ，藉由端子20’之焊接腳 21’延伸出絕緣本體10’外，電連接器100’與電路板（圖中 未示）焊接後，端子20’外露，從而產生電磁干擾。 【新型内容】 本創作之目的在於克服上述現有技術中的不足，提供一種 可有效防止電磁干擾之電連接器。 為達成上述目的，本創作提供一種電連接器，包括一絕緣 本體、複數端子、一外殼及一輔助殼體。絕緣本體具有一基體， 基體前端橫向凸伸有呈水平板狀的舌體部，舌體部上表面開設 有複數向後貫穿至基體後表面之端子槽，端子槽包括開設於基 體下表面且貫穿基體後表面的焊接槽；複數端子分別收容於一 端子槽内，端子分別具有一水平延伸的焊接腳，焊接腳折彎安 裝於焊接槽内，且焊接腳下端面與基體之下表面平齊；外殼包 3 M419307 覆於絕緣本體之基體及舌體部外，該殼體與絕緣本體之舌體部 圍成一水平的插接空間；輔助殼體包覆於基體後端處。 如上所述，本創作電連接器藉由焊接腳折f安裝於焊接槽 内’且焊接腳下端面與基體之下表面平齊，使得電連接器與電 路板焊接後，端子不易外露，從而更好的防止電磁干擾，此外， 增設輔助殼體也可有效的防止電磁干擾。 【實施方式】 為詳細說明本創作之技術内容、構造特徵、所達成目的及 功效，以下茲舉例並配合圖式詳予說明。 請參閲第二圖’本創作電連接器刚，包括一絕緣本體 10、複數端子20、一外殼30及一輔助殼體4〇。 請參閱第二圖至第四圖，所述絕緣本體1〇具有一基體 11，基體11前端向前橫向凸伸有呈水平板狀的舌體部12，舌 體部12上表面開設有複數水平排列且向後貫穿絕緣本體1〇之 基體11後表面之端子槽13，端子槽13包括開設於基體u下 表面且貫穿基體11後表面的焊接槽131，基體u後端於端子 =Π兩側處分別開設有一安裝槽14，基體u後端上部處開 設有貫穿基體11前後的卡持槽15，基體u上端處向前水平 延伸形成一延伸板16，延伸板16後端開設有與卡持槽15相 通的卡楔槽16卜該基體11兩側後端分別向外凸設有凸塊丨7。 所述複數端子20分別收容於一端子槽13内，端子2〇分 別具有一板狀的固持部21及從固持部21 一端向後向下彎折延 伸後再向前水平彎折延伸形成的焊接腳22，焊接腳22容置於 焊接槽131内，且焊接腳22下端面與基體u之下表面平齊。 所述外殼30包覆於絕緣本體1〇之基體n及舌體部12 外，忒外殼30與絕緣本體1〇之舌體部12圍成水平的插接空 4 M419307 間31。外殼30具有一頂板32、兩側板33及一底板34，外殼 30之頂板32後端向後凸伸形成兩卡持部35，卡持部35上向 外沖設有一卡楔351，卡持部35卡持於卡持槽15内，卡楔351 卡持於卡楔槽161内，外殼30之底板34向後延伸形成安裝腳 36，安裝腳36折彎安裝於安裝槽14内，該外殼30之兩側板 33前部皆向外沖切並彎折有水平延伸的焊接板37，兩側板33 下側緣後部向外彎折後再向下豎直延伸形成有焊腳38，外殼 30之兩側板33後端兩側處分別向外凸設有一卡塊39。 所述輔助殼體40包覆於基體11後端處，輔助殼體40具 有一板狀的基板41，基板41兩側分別向前彎折延伸形成一第 一卡持臂42及一第二卡持臂43，第一卡持臂42及第二卡持 臂43上分別開設有第一卡槽421及第二卡槽431，凸塊17卡 持於第二卡槽431内，卡塊39卡持於第一卡槽421内。 如第二圖至第四圖所示，本創作電連接器100組裝時，首 先，將端子20從絕緣本體10後方向前插入端子槽13，焊接 腳22安裝於焊接槽131内，且焊接腳22下端面與基體11之 下表面平齊。其次，將組裝有端子20的絕緣本體10裝入外殼 30内，具體地，安裝腳36折彎安裝於安裝槽14内。再次， 藉由凸塊17卡持於第二卡槽431内，卡塊39卡持於第·—^槽 421内，將輔助殼體40包覆安裝於絕緣本體10及外殼30上。 最後，將電連接器100組裝於電路板（圖中未示）上，外殼30 之焊腳38、端子20之焊接腳22以及焊接板37焊接於電路板 上。 如上所述，本創作電連接器100藉由焊接腳22折彎安裝 於絕緣本體10之基體11下表面的焊接槽131内，且焊接腳 22下端面與基體11之下表面平齊，使得電連接器100與電路 板焊接後，端子20不易外露，從而更好的防止電磁干擾，此 5 M419307 外，增設輔助殼體40也可有效的防止電磁干擾。 【圖式簡單說明】 第一圖為習知電連接器的立體圖。 第二圖為本創作電連接器的立體圖。 第三圖為第二圖所示電連接器的立體分解圖。 第四圖為第二圖所示電連接器另一角度的立體分解圖。 【主要元件符號說明】 電連接器 100 絕緣本體 10 基體 11 舌體部 12 端子槽 13 焊接槽 131 安裝槽 14 卡持槽 15 延伸板 16 卡楔槽 161 凸塊 17 端子 20 固持部 21 焊接腳 22 外殼 30 插接空間 31 頂板 32 侧板 33 底板 34 卡持部 35 卡楔 351 安裝腳 36 焊接板 37 焊腳 38 卡塊 39 輔助殼體 40 基板 41 第一卡持臂 42 第一卡槽 421 第二卡持臂 43 第二卡槽 431M419307 V. New description: [New technical field] The present invention relates to a connector, and more particularly to an electrical connector capable of effectively preventing electromagnetic interference. [Prior Art] As shown in the first figure, an electrical connector 100' includes an insulative housing 10', a plurality of terminals 20' assembled to the insulative housing 10', and a housing 30' wrapped around the insulative housing 10'. The housing 30' and the insulative housing 10' define a plug hole (not shown). The insulative housing 10' defines a plurality of terminal slots (not shown) that communicate with the plug holes. The plurality of terminals 20' each have a holding portion (not shown) and a soldering leg 21' which is bent and extended from one end of the holding portion. The plurality of terminals 20' are respectively received in a terminal slot, and the soldering leg 21' extends. Insulating body 10' outside. However, the above-mentioned conventional electrical connector 100' extends out of the insulative housing 10' by the soldering leg 21' of the terminal 20', and after the electrical connector 100' is soldered to the circuit board (not shown), the terminal 20' Exposed to cause electromagnetic interference. [New Content] The purpose of the present invention is to overcome the deficiencies in the prior art described above and to provide an electrical connector that can effectively prevent electromagnetic interference. To achieve the above object, the present invention provides an electrical connector including an insulative housing, a plurality of terminals, a housing, and an auxiliary housing. The insulating body has a base body, and a front end portion of the base body laterally protrudes with a horizontal plate-shaped tongue portion. The upper surface of the tongue portion is provided with a plurality of terminal slots extending backward to the rear surface of the base body. The terminal groove is formed on the lower surface of the base body and penetrates the base body. a soldering groove on the rear surface; the plurality of terminals are respectively received in a terminal slot, the terminals respectively have a horizontally extending soldering leg, the soldering foot is bent and mounted in the soldering groove, and the lower end surface of the soldering foot is flush with the lower surface of the base body; 3 M419307 is applied to the outer body of the insulating body and the body portion of the body, and the housing and the body portion of the insulating body enclose a horizontal insertion space; the auxiliary housing is wrapped around the rear end of the base body. As described above, the present electrical connector is mounted in the soldering groove by the soldering foot folds' and the lower end surface of the soldering foot is flush with the lower surface of the base body, so that after the electrical connector is soldered to the circuit board, the terminal is not easily exposed, thereby making it better. To prevent electromagnetic interference, in addition, the addition of an auxiliary housing can also effectively prevent electromagnetic interference. [Embodiment] In order to explain in detail the technical contents, structural features, achieved goals and effects of the present invention, the following is a detailed description with reference to the drawings. Referring to the second figure, the original electrical connector includes an insulative housing 10, a plurality of terminals 20, a housing 30 and an auxiliary housing 4. Referring to the second to fourth figures, the insulative housing 1 has a base body 11. The front end of the base body 11 protrudes laterally forwardly with a horizontal plate-shaped tongue portion 12, and the upper surface of the tongue portion 12 is provided with a plurality of levels. The terminal groove 13 is arranged to extend rearwardly through the rear surface of the base 11 of the insulative housing 1 , and the terminal groove 13 includes a soldering groove 131 which is formed on the lower surface of the base u and penetrates the rear surface of the base 11 , and the rear end of the base u is disposed on both sides of the terminal=Π A mounting groove 14 is defined in the upper portion of the rear end of the base body. The upper end of the base body u extends horizontally forward to form an extension plate 16 . The rear end of the extension plate 16 is provided with a retaining groove. The flanges 16 of the 15 intersecting card wedge grooves 16 are respectively convexly protruded from the rear ends of the base body 11 . The plurality of terminals 20 are respectively received in a terminal slot 13 , and the terminal 2 〇 respectively has a plate-shaped holding portion 21 and a soldering leg formed by bending and extending from the end of the holding portion 21 to the rear and then extending horizontally and forwardly. 22, the soldering foot 22 is received in the soldering groove 131, and the lower end surface of the soldering leg 22 is flush with the lower surface of the base u. The outer casing 30 is wrapped around the base body n of the insulative housing 1 and the tongue portion 12. The outer casing 30 and the tongue portion 12 of the insulative housing 1 enclose a horizontal gap 4 M419307 31. The outer casing 30 has a top plate 32, two side plates 33 and a bottom plate 34. The rear end of the top plate 32 of the outer casing 30 protrudes rearwardly to form two latching portions 35. The latching portion 35 is outwardly punched with a wedge 351, and the latching portion 35 The clamping plate 15 is held in the clamping groove 15 , and the clamping wedge 351 is clamped in the clamping groove 161 . The bottom plate 34 of the outer casing 30 extends rearward to form a mounting leg 36 . The mounting leg 36 is bent and mounted in the mounting groove 14 . The front portions of the side plates 33 are outwardly punched and bent with a horizontally extending welded plate 37. The rear side edges of the lower side edges of the side plates 33 are bent outwardly and then vertically extended to form the solder tails 38. The two sides of the outer casing 30 are 33. A block 39 is protruded outwardly from both sides of the rear end. The auxiliary housing 40 is wrapped around the rear end of the base 11. The auxiliary housing 40 has a plate-shaped substrate 41. The two sides of the substrate 41 are respectively bent forward to form a first holding arm 42 and a second card. The first latching slot 421 and the second latching slot 431 are respectively disposed on the first arming arm 42 and the second latching arm 43. The latching block 17 is locked in the second latching slot 431, and the latching block 39 is stuck. Hold in the first card slot 421. As shown in the second to fourth figures, when the present electrical connector 100 is assembled, first, the terminal 20 is inserted into the terminal slot 13 from the rear of the insulative housing 10, and the soldering leg 22 is mounted in the soldering slot 131, and the soldering leg is soldered. The lower end surface of the 22 is flush with the lower surface of the base 11. Next, the insulative housing 10 in which the terminal 20 is assembled is housed in the outer casing 30. Specifically, the mounting leg 36 is bent and mounted in the mounting groove 14. Further, the bumps 17 are held in the second card slots 431, and the block 39 is held in the first slot 421, and the auxiliary housing 40 is overlaid on the insulative housing 10 and the housing 30. Finally, the electrical connector 100 is assembled to a circuit board (not shown), and the solder tail 38 of the outer casing 30, the soldering legs 22 of the terminal 20, and the soldering plate 37 are soldered to the circuit board. As described above, the present electrical connector 100 is bent and soldered to the soldering groove 131 of the lower surface of the base 11 of the insulative housing 10 by the soldering leg 22, and the lower end surface of the soldering leg 22 is flush with the lower surface of the base 11, so that the electric After the connector 100 is soldered to the circuit board, the terminal 20 is not easily exposed, thereby better preventing electromagnetic interference. In addition to the 5 M419307, the auxiliary housing 40 can also effectively prevent electromagnetic interference. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a perspective view of a conventional electrical connector. The second figure is a perspective view of the creative electrical connector. The third figure is an exploded perspective view of the electrical connector shown in the second figure. The fourth figure is an exploded perspective view of another angle of the electrical connector shown in the second figure. [Description of main components] Electrical connector 100 Insulating body 10 Base 11 Tongue part 12 Terminal groove 13 Welding groove 131 Mounting groove 14 Holding groove 15 Extension plate 16 Wedge groove 161 Bump 17 Terminal 20 Holding portion 21 Welding leg 22 Housing 30 Plug-in space 31 Top plate 32 Side plate 33 Base plate 34 Hold portion 35 Wedge 351 Mounting foot 36 Weld plate 37 Weld foot 38 Block 39 Auxiliary housing 40 Substrate 41 First holding arm 42 First card slot 421 Two card holding arms 43 second card slot 431