M430728 五、新型說明： 【新型所屬之技術領域】 本創作涉及一種電連接器，特別是涉及一種防止絕緣本體 相對金屬外殼偏轉運動或晃動而導致接觸不穩定的電連接器。 【先前技術】 按，習知的一種電連接器包括絕緣本體、複數端子及殼 體。絕緣本體具有一基部，基部前端向前凸伸形成一舌板，舌 板下表面開設有貫穿基部後端的端子槽。複數端子插設於絕緣 本體之端子槽内。殼體包覆於絕緣本體外部。 惟’上述習知的電連接器由於舌板自基部前端伸出，僅僅 由基部與殼體間的固定，在使用過程中容易發生絕緣本體相對 殼體的偏轉運動或晃動等現象，而導致連接系統接觸不穩定。 【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 具有防止絕緣本體相對金屬外殼偏轉運動或晃動而導致連接 系統接觸不穩定的電連接器。 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’複數端子及一金屬外殼。絕緣本體具有一基部，基部前 ^面上端向前凸伸形成一舌板，舌板下表面向後開設有貫穿基 4後端的端子槽’基部後表面下部向後凸伸形成 一基板，基板 兩側下端分別向外凸設有卡塊。複數端子裝設於絕緣本體之端 子槽内。金屬外殼蓋合於絕緣本體外，具有頂板、底板及兩側 山其中底板向後延伸的長度大於頂板及兩側板的長度，側板 。後並向上延伸形成卡持腳，底板後端與卡持腳圍成一卡 曰卡持腳和卡槽與絕緣本體之卡塊卡合。 3 M430728 綜上所述’本創作電連接器藉由在絕緣本體之基部向後凸 伸出基板，並由基板上設置的卡塊與金屬外殼後部增設的卡槽 相卡持，以將金屬外殼牢固蓋合於絕緣本體外，從而有效防止 絕緣本體相對金屬外殼偏轉或晃動，進而確保連接系統接觸穩 定，且該電連接器結構簡化，設計簡易，裝配方便。 【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。 凊參閱第二圖和第三圖’本創作電連接器包括一絕緣本體 1〇、複數端子20及一金屬外殼3〇。 本實施例中，所述絕緣本體1〇具有一豎直板狀的基部 11，基部11前表面上部向前凸伸形成一舌板12，舌板12下 表面向後開設有貫穿基部u後端的端子槽121，基部u後表 面於端子槽121尾部進—步擴伸形成干涉槽122。基部u後 表面下向後凸伸形成—基板13，基板上表面對應端子槽 間隔凹《又有複數卡持槽131，卡持槽ΐ3ι下部進一步擴伸 形成卡13槽132。基板13兩側下端分別向外凸設有卡塊133， ^板13下表面後端開設有兩向後貫穿的凹槽⑼，且凹槽⑼ 前端凸設有擋塊（圖未示）。 — 含端子2G具有平板狀的固持部2卜固持部21前端向前向 下彎折延伸形成-彈性臂22，彈㈣22前端進—步彎折延伸 j接觸。p 23 ’固持部21後端g直向下彎折再向後延伸形 …持。P 24卡持部24向後並向上擎折延伸再水平彎折延伸 ^成焊接# 25。端子2〇裝設於絕緣本體1Q上，具體地固 持部21固定於干涉槽122内，彈性臂22和接卿、23插入絕 4 M430728 緣本體10之端子槽121内，卡持部24卡持於卡固槽132内， 焊接部25伸出絕緣本體10之基板13上表面。 金屬外殼30蓋合於絕緣本體10外，具有頂板31、底板 32及兩側板33，其中底板32向後延伸的長度大於頂板31及 兩側板33的長度。金屬外殼30之頂板31上向内沖設有彈片 311，底板32前端兩側内表面上分別向内凸設有一凸部321， 底板32後端兩側向内沖設有向前延伸的卡片322,彈片311 和凸部321皆用於與對接連接器（圖未示）干涉卡緊。另，金 屬外殼30之側板33上向外沖設有焊接腳331，側板33下端 向後並向上延伸形成卡持腳332，卡持腳332焊接於外部電路 板（圖未示）上以定位，側板33後部上端向内彎折形成一擋 片333，底板32後端與卡持腳332圍成一卡槽334。 本創作電連接器組裝時，先將端子20裝設於絕緣本體10 之端子槽121内，再將金屬外殼30蓋合於絕緣本體10外，擋 片333擋持於絕緣本體10之基部11後端，卡塊133卡緊於卡 槽334内，卡片322卡持於凹槽134内並與擋塊卡合以防止絕 緣本體後退，從而將絕緣本體10牢固卡合於金屬外殼30内， 藉此，完成該電連接器的組裝。 綜上所述，本創作電連接器藉由在絕緣本體10之基部11 向後凸伸出基板13,並由基板13上設置的卡塊133及凹槽134 與金屬外殼30後部增設的卡槽334及卡片322相卡持，以將 金屬外殼30牢固蓋合於絕緣本體10外，從而有效防止絕緣本 體10相對金屬外殼30偏轉或晃動，進而確保連接系統接觸穩 定，且該電連接器結構簡化，設計簡易，裝配方便。 【圖式簡單說明】 5 M430728 第一圖係本創作電連接器之較佳實施例之立體圖。 第二圖係第一圖所示電連接器較佳實施例之立體分解圖。 第三圖係第一圖所示電連接器之另一視角的立體分解圖。 【主要元件符號說明】 絕緣本體 10 基部 11 舌板 12 端子槽 121 干涉槽 122 基板 13 卡持槽 131 卡固槽 132 卡塊 133 凹槽 134 端子 20 固持部 21 彈力臂 22 接觸部 23 卡持部 24 焊接部 25 金屬外殼 30 頂板 31 彈片 311 底板 32 凸部 321 卡片 322 側板 33 焊接腳 331 卡持腳 332 擋片 333 卡槽 334M430728 V. New Description: [New Technical Field] The present invention relates to an electrical connector, and more particularly to an electrical connector that prevents the insulating body from deflecting or swaying relative to the metal casing to cause unstable contact. [Prior Art] A conventional electrical connector includes an insulative housing, a plurality of terminals, and a housing. The insulative housing has a base portion, the front end of the base portion protrudes forwardly to form a tongue plate, and the lower surface of the tongue plate is provided with a terminal groove extending through the rear end of the base portion. The plurality of terminals are inserted into the terminal slots of the insulating body. The housing is wrapped around the outside of the insulative housing. However, the above-mentioned conventional electrical connector has a tongue plate extending from the front end of the base, and is only fixed between the base and the casing, and the deflection movement or shaking of the insulating body relative to the casing is likely to occur during use, resulting in connection. System contact is unstable. [New Content] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide an electrical connector having an unstable connection between the insulating body and the metal casing to prevent the connection system from being unstable. To achieve the above object, the present invention provides an electrical connector comprising an insulative body ‘multiple terminals and a metal outer casing. The insulating body has a base portion, and the front surface of the front portion of the base portion protrudes forwardly to form a tongue plate. The lower surface of the tongue plate faces rearward and has a terminal groove extending through the rear end of the base 4. The lower portion of the rear surface of the base portion protrudes rearward to form a substrate, and the lower ends of the substrate are lower. The blocks are respectively convex outward. The plurality of terminals are mounted in the terminal slots of the insulative housing. The metal casing is covered on the outside of the insulating body, and has a top plate, a bottom plate and two sides. The length of the bottom plate extending rearward is greater than the length of the top plate and the two side plates, and the side plates. The rearwardly and upwardly extending latching legs form a card with the rear end of the bottom plate and the latching legs. The latching legs and the card slots are engaged with the latching blocks of the insulating body. 3 M430728 In summary, the present electronic connector protrudes rearward from the base of the insulative housing, and the card block provided on the substrate is engaged with the card slot added at the rear of the metal casing to secure the metal casing. Covering the outside of the insulating body, thereby effectively preventing the insulating body from deflecting or swaying relative to the metal casing, thereby ensuring stable connection of the connecting system, and the structure of the electrical connector is simplified, the design is simple, and the assembly is convenient. [Embodiment] In order to explain in detail the technical features of the present invention, the structural features, the achieved objectives, and the effects, the following is a detailed description with reference to the drawings. Referring to the second and third figures, the present electrical connector includes an insulative housing 1 , a plurality of terminals 20 and a metal housing 3 . In this embodiment, the insulative housing 1 has a vertical plate-shaped base portion 11. The upper portion of the front surface of the base portion 11 protrudes forwardly to form a tongue plate 12. The lower surface of the tongue plate 12 faces rearward and is provided with a terminal slot extending through the rear end of the base portion u. 121, the rear surface of the base u is stepped into the end of the terminal slot 121 to form an interference groove 122. The bottom surface of the base portion u is protruded rearwardly to form a substrate 13. The upper surface of the substrate is spaced apart from the terminal slot. The plurality of latching slots 131 are further formed, and the lower portion of the latching slot 3i is further extended to form the slot 13 of the card 13. The lower ends of the two sides of the substrate 13 respectively protrude outwardly from the latches 133. The rear end of the lower surface of the plate 13 is provided with two grooves (9) extending rearward, and the front end of the groove (9) is convexly provided with a stopper (not shown). — The terminal 2G is provided with a flat-shaped holding portion 2, and the front end of the holding portion 21 is bent forward and downward to form a resilient arm 22, and the front end of the elastic (four) 22 is stepped and extended to extend j. The rear end g of the p 23 ' holding portion 21 is bent straight downward and then extended rearwardly. The P 24 holding portion 24 extends rearward and upwards and then horizontally bends and extends into a welding #25. The terminal 2 is mounted on the insulative housing 1Q. Specifically, the retaining portion 21 is fixed in the interference slot 122. The elastic arm 22 and the latching member 23 are inserted into the terminal slot 121 of the 4 M430728 edge body 10, and the latching portion 24 is latched. In the fastening groove 132, the soldering portion 25 protrudes from the upper surface of the substrate 13 of the insulative housing 10. The metal casing 30 covers the outside of the insulative housing 10 and has a top plate 31, a bottom plate 32 and two side plates 33. The length of the bottom plate 32 extending rearward is greater than the length of the top plate 31 and the side plates 33. A resilient piece 311 is punched inwardly on the top plate 31 of the metal casing 30. A convex portion 321 is protruded inwardly on the inner surfaces of the front end of the bottom plate 32, and the front end of the bottom plate 32 is inwardly punched with a card 322 extending forward. The elastic piece 311 and the convex part 321 are both used to interfere with the mating connector (not shown). In addition, the side plate 33 of the metal casing 30 is outwardly punched with a soldering leg 331. The lower end of the side plate 33 extends rearward and upwardly to form a latching leg 332. The latching leg 332 is soldered to an external circuit board (not shown) for positioning. The upper end of the rear portion of the bottom plate 33 is bent inwardly to form a blocking piece 333. The rear end of the bottom plate 32 and the holding leg 332 define a slot 334. When the electrical connector is assembled, the terminal 20 is installed in the terminal slot 121 of the insulative housing 10, and the metal housing 30 is covered on the outside of the insulative housing 10, and the blocking piece 333 is retained behind the base 11 of the insulative housing 10. The card 322 is clamped in the slot 334, and the card 322 is engaged with the slot 134 to prevent the insulative housing from retreating, thereby firmly engaging the insulative housing 10 in the metal housing 30. , complete the assembly of the electrical connector. In summary, the present electrical connector protrudes rearwardly from the base portion 11 of the insulative housing 10, and the card slot 133 and the recess 134 provided on the substrate 13 and the card slot 334 added to the rear of the metal housing 30 are provided. The card 322 is latched to firmly cover the metal casing 30 to the outside of the insulative housing 10, thereby effectively preventing the insulative housing 10 from deflecting or swaying relative to the metal casing 30, thereby ensuring stable connection of the connection system, and the electrical connector structure is simplified. Easy to design and easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS 5 M430728 The first figure is a perspective view of a preferred embodiment of the present electrical connector. The second drawing is an exploded perspective view of a preferred embodiment of the electrical connector shown in the first figure. The third figure is an exploded perspective view of another view of the electrical connector shown in the first figure. [Main component symbol description] Insulating body 10 Base 11 tongue 12 terminal groove 121 interference groove 122 substrate 13 holding groove 131 fixing groove 132 block 133 groove 134 terminal 20 holding portion 21 elastic arm 22 contact portion 23 holding portion 24 Welded part 25 Metal case 30 Top plate 31 Spring piece 311 Base plate 32 Convex part 321 Card 322 Side plate 33 Welded foot 331 Clamping foot 332 Baffle 333 Card slot 334