M426914 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，特別是涉及一種具有防塵功能 的電連接器。 【先前技術】 按，如第一圖所示，習知的一種電連接器包括絕緣本體 10’、複數端子20’、卡持件30’及殼體40’。絕緣本體10’具有 一基部11’，基部11’前端向前凸伸形成一舌板12’，舌板12’ 下表面開設有貫穿基部11’後端的端子槽（圖未示）。複數端子 20’插設於絕緣本體10’之端子槽内，卡持件30’卡持於舌板12’ 下部兩側。殼體40’包覆於絕緣本體10’外部。 惟，上述習知的電連接器藉由端子20’與絕緣本體10’組 裝後再與殼體40’組裝完成製造。因組裝端子20’時，絕緣本 體10’必須有組裝工藝所需的充足避讓孔，以便組裝時端子20’ 通過，因而在組裝完端子20’後，尚存有較大的縫隙，致使灰 塵從縫隙進入。 【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 具有防塵功能的電連接器。 為達成上述目的，本創作提供一種電連接器，包括絕緣本 體、複數端子、座體及金屬外殼。絕緣本體具有一基部，基部 前端向前凸伸形成一舌板，舌板上開設有向後貫穿基部後端的 端子槽，基部下部開設有一與端子槽連通的容置空間。座體裝 設於絕緣本體之容置空間内。複數端子一體成型於座體上並裝 設於絕緣本體内，金屬外殼蓋合於絕緣本體外。 3 综上所述，本創作電連接器藉由將複數端子一體成型於座 體上’再將設有端子的座體組裝於絕緣本體内，且金屬外殼設 有後板，從而有效防止灰塵通過連接器接口進入電子產品。 【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。 請參閱第二圖和第三圖，本創作電連接器包括一絕緣本體 10、複數端子20、一座體30及一金屬外殼40。 本實施例中，所述絕緣本體10具有一基部U，基部U 兩側面上分別凸設有卡塊1U ’基部11底部兩側分別凸設有一 支撐腳112，基部11頂部向下開設有一凹槽113，基部u前 表面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11後端的端子槽121，基部11下部開設有一與端子槽i 21 連通的容置空間13，容置空間13之兩側壁上分別凹設有一卡 持槽114。 座體30前表面上對應端子槽121凸設有複數定位柱η， 座體30兩側表面上皆凸設有一凸塊32，座體3〇前表面下部 開設有貫穿下表面的插接槽33,座體30下表面上設有卡槽（圖 未示），座體30裝設於絕緣本體1〇之容置空間13内。 端子20具有固持部21，固持部21前端向前向下彎折延 伸形成一彈性臂22,彈性臂22前端進一步彎折延伸形成一接 觸部23，固持部21後端豎直向下彎折延伸形成連接部24,連 接部24下端進一步向後水平彎折延伸形成焊接部25。端子20 一體成型於座體30上並裝設於絕緣本體1〇内，具體地，固持 部21及連接部24 —體成型於座體30内，固持部21前端伸出 座體30並定位於定位柱31上方，彈性臂22和接觸部23插入 M426914 絕緣本體10之端子槽121内，焊接部25露出於座體30之後 端。 金屬外殼40蓋合於絕緣本體10外，具有頂板41、底板 42、兩側板43及後板44。金屬外殼40之頂板41、底板42及 兩側板43上均向内沖設有彈片46，用於與對接連接器（圖未 示）干涉卡緊。另，金屬外殼40之頂板41及底板42皆向内 沖設有卡片45，後板44兩側下部向前彎折延伸出卡板（圖未 示），且卡板上向内沖設有卡片45，兩側板43下部開設有卡 口（圖中未標示）。側板43後端靠近頂板41處皆設有與絕緣 本體10之基部11的卡塊111配合的卡扣槽431。側板43後端 向外彎折延伸形成焊接腳432。 本創作電連接器組裝時，首先，將端子20 —體成型於座 體30上；然後，將設有端子20的座體30裝設於絕緣本體10 之容置空間13内，並藉由凸塊32卡合於卡持槽114内。定位 柱31對應插入端子槽121後端；最後，將金屬外殼40蓋合於 絕緣本體10外，底板42後端插入座體30下部的插接槽33内， 頂板41之卡片45與絕緣本體10之基部11的凹槽113卡合， 底板42上之卡片45與座體30之卡槽卡合，以將絕緣本體10 及座體30牢固卡緊，蓋合後板44，後板44之卡片45與側板 43之卡口卡合，卡塊111與卡扣槽431扣緊，藉此，完成電 連接器的組裝。 綜上所述，本創作電連接器藉由將複數端子20 —體成型 於座體30上，再將設有端子20的座體30組裝於絕緣本體10 内，且金屬外殼30設有後板44，從而有效防止灰塵通過連接 器接口進入電子產品内。 5 M426914 【圖式簡單說明】 第一圖係習知電連接器的立體分解圖。 第二圖係本創作電連接器之較佳實施例之立體圖。 第三圖係第二圖所示電連接器之部分立體分解圖。 第四圖係第二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 卡塊 111 支撐腳 112 凹槽 113 卡持槽 114 舌板 12 端子槽 121 容置空間 13 彈性端子 20 固持部 21 彈性臂 22 接觸部 23 連接部 24 焊接部 25 座體 30 定位柱 31 凸塊 32 插接槽 33 金屬外殼 40 頂板 41 底板 42 側板 43 卡扣槽 431 焊接腳 432 後板 44 卡片 45 彈片 46 6M426914 V. New description: [New technical field] The present invention relates to an electrical connector, and more particularly to an electrical connector having a dustproof function. [Prior Art] As shown in the first figure, a conventional electrical connector includes an insulative housing 10', a plurality of terminals 20', a holding member 30', and a housing 40'. The insulative housing 10' has a base portion 11'. The front end of the base portion 11' projects forwardly to form a tongue plate 12'. The lower surface of the tongue plate 12' is provided with a terminal groove (not shown) extending through the rear end of the base portion 11'. The plurality of terminals 20' are inserted into the terminal slots of the insulative housing 10', and the catching members 30' are held on both sides of the lower portion of the tongue plate 12'. The housing 40' is wrapped around the outside of the insulative housing 10'. However, the above-described conventional electrical connector is assembled by assembling the terminal 20' and the insulative housing 10' and then assembling it with the housing 40'. When the terminal 20' is assembled, the insulative housing 10' must have sufficient relief holes required for the assembly process so that the terminal 20' passes through during assembly, so that after the terminal 20' is assembled, there is still a large gap, resulting in dust from The gap enters. [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 having a dustproof function. To achieve the above objectives, the present invention provides an electrical connector including an insulating body, a plurality of terminals, a seat body, and a metal case. The insulative housing has a base portion, and a front end of the base portion protrudes forwardly to form a tongue plate. The tongue plate is provided with a terminal slot extending rearwardly through the rear end of the base portion, and a lower portion of the base portion defines an accommodation space communicating with the terminal slot. The seat body is installed in the accommodating space of the insulating body. The plurality of terminals are integrally formed on the base body and mounted in the insulating body, and the metal casing is covered on the outside of the insulating body. 3 In summary, the present invention is formed by integrally molding a plurality of terminals on a seat body, and then assembling the seat body provided with the terminal into the insulating body, and the metal casing is provided with a rear plate, thereby effectively preventing dust from passing through. The connector interface enters the electronic product. [Embodiment] The technical contents, structural features, achieved goals, and effects of the present invention are described in detail below, and are described in detail below with reference to the drawings. Referring to the second and third figures, the present electrical connector includes an insulative housing 10, a plurality of terminals 20, a body 30, and a metal housing 40. In this embodiment, the insulative housing 10 has a base portion U. The base portion U is respectively convexly provided with a latching block 1U. The bottom portion of the base portion 11 is respectively convexly provided with a supporting leg 112, and a recess is formed at the top of the base portion 11. 113, the front surface of the base portion u protrudes forwardly to form a tongue plate 12, the lower surface of the tongue plate 12 faces rearwardly and has a terminal slot 121 extending through the rear end of the base portion 11. The lower portion of the base portion 11 defines an accommodation space 13 communicating with the terminal slot i 21 . A holding groove 114 is recessed in each of the two side walls of the accommodating space 13 . A plurality of positioning posts η are protruded from the corresponding terminal slots 121 on the front surface of the base body 30. A convex block 32 is protruded from the two sides of the front surface of the base body 30. The lower part of the front surface of the base body 3 is provided with a connecting slot 33 extending through the lower surface. A card slot (not shown) is disposed on the lower surface of the base body 30, and the base body 30 is disposed in the accommodating space 13 of the insulative housing 1b. The terminal 20 has a retaining portion 21, and the front end of the retaining portion 21 is bent forward and downward to form a resilient arm 22. The front end of the resilient arm 22 is further bent to form a contact portion 23, and the rear end of the retaining portion 21 is bent vertically downward. The connecting portion 24 is formed, and the lower end of the connecting portion 24 is further bent rearward to form a welded portion 25. The terminal 20 is integrally formed on the base body 30 and mounted in the insulative housing 1 . Specifically, the retaining portion 21 and the connecting portion 24 are integrally formed in the base 30 , and the front end of the retaining portion 21 protrudes from the base 30 and is positioned Above the positioning post 31, the elastic arm 22 and the contact portion 23 are inserted into the terminal groove 121 of the M426914 insulative housing 10, and the soldering portion 25 is exposed at the rear end of the base body 30. The metal casing 40 is covered outside the insulative housing 10 and has a top plate 41, a bottom plate 42, two side plates 43, and a rear plate 44. The top plate 41, the bottom plate 42 and the side plates 43 of the metal casing 40 are internally provided with a resilient piece 46 for interference interference with a mating connector (not shown). In addition, the top plate 41 and the bottom plate 42 of the metal casing 40 are flushed with the card 45 inwardly, and the lower sides of the rear plate 44 are bent forward to extend out of the card board (not shown), and the card board is punched inwardly. 45, the lower part of the side plate 43 is provided with a bayonet (not shown). The rear end of the side plate 43 is provided with a snap groove 431 which is engaged with the block 111 of the base portion 11 of the insulating body 10 near the top plate 41. The rear end of the side plate 43 is bent outward to form a soldering leg 432. When the electrical connector is assembled, first, the terminal 20 is integrally formed on the base 30; then, the base 30 provided with the terminal 20 is installed in the accommodating space 13 of the insulative housing 10, and is convex. The block 32 is engaged in the retaining slot 114. The positioning post 31 is correspondingly inserted into the rear end of the terminal slot 121. Finally, the metal housing 40 is covered on the outside of the insulative housing 10. The rear end of the bottom plate 42 is inserted into the insertion slot 33 in the lower part of the base 30. The card 45 of the top plate 41 and the insulative housing 10 The groove 113 of the base portion 11 is engaged, and the card 45 on the bottom plate 42 is engaged with the card slot of the base body 30 to firmly clamp the insulative housing 10 and the base body 30 to cover the card of the rear plate 44 and the rear plate 44. 45 is engaged with the bayonet of the side plate 43, and the card block 111 is fastened with the latching groove 431, thereby completing the assembly of the electrical connector. In summary, the present electrical connector is formed by integrally molding the plurality of terminals 20 on the base 30, and then assembling the base 30 provided with the terminal 20 into the insulative housing 10, and the metal casing 30 is provided with a rear plate. 44, thereby effectively preventing dust from entering the electronic product through the connector interface. 5 M426914 [Simple description of the diagram] The first figure is an exploded view of the conventional electrical connector. The second figure is a perspective view of a preferred embodiment of the present electrical connector. The third figure is a partial exploded view of the electrical connector shown in the second figure. The fourth figure is an exploded perspective view of another view of the electrical connector shown in the second figure. [Main component symbol description] Insulating body 10 Base 11 Block 111 Supporting foot 112 Groove 113 Holding groove 114 Tongue 12 Terminal groove 121 accommodating space 13 Elastic terminal 20 Retaining part 21 Elastic arm 22 Contact part 23 Connection part 24 Welding Part 25 Seat 30 Positioning post 31 Bump 32 Inserting groove 33 Metal housing 40 Top plate 41 Base plate 42 Side plate 43 Snap groove 431 Soldering foot 432 Rear plate 44 Card 45 Spring 46 6