M383228 狀的基部21。基部21的上表面開設有卡塊211。基部21的後 端的兩側對稱設有兩凸緣212,兩凸緣212之間形成卡槽213。 凸緣212與基部21之間形成嵌合槽22，基部21的前端面向 前垂直凸伸形成一舌板214。舌板214上開設有複數個端子槽 215，且端子槽215貫穿基部21，並在卡塊211上表面形成安 裝孔216，端子槽215的底壁上開設有上下貫穿該舌板214的 開孔217。 參閱第三圖至第五圖，導電端子30呈長條形，其具有一 接觸部31，一端子焊接腳32,接觸部31的末端斜向下彎折形 成一固定部33。 參閱第三圖至第五圖，金屬外殼40具有與基板13正對的 外殼底板41，外殼底板41對應卡持孔131處設有内凹外凸的 封擂部42，外殼底板41的後部彎折延伸有一卡接部43，卡接 部43與外殼底板41交界處開設有通孔44，外殼底板41的兩 相對側緣分別彎折延伸有一側壁45,側壁45遠離外殼底板41 的侧緣向外延伸有焊接腳46。 安裝時，先把導電端子30從安裝孔216伸進絕緣本體20, 將其接觸部31固定於舌板214的端子槽215内，讓端子焊接 腳32外露在絕緣本體20後；然後把絕緣本體20連同導電端 子30從金屬内殼10的後部塞進收容空間14内，使基板13的 後端卡接於嵌合槽22内，卡塊211與卡口 112密封卡接，此 時，基部21、舌板214以及金屬内殼10之間形成與對接連接 器插接的配合腔15 ;最後把金屬外殼40套設於金屬内殼10 以及絕緣本體20上，金屬外殼40包覆金屬内殼10的兩基板 13及兩側板12並與金屬内殼10焊接一體，金屬外殼40後部 的卡接部43卡合於卡槽213上。 如上所述，本創作防水型電連接器100的金屬外殼40包 5 M383228 覆金屬内殼10之設有卡持孔131的基板13，封蓋住基板13 上的卡持孔131，防止水從卡持孔131流進電連接器的PCB板 中，從而確保電路的正常工作；此外，金屬外殼40與金屬内 殼10接觸連接，充當接地功能，代替了現有技術金屬殼體的 焊接腳的作用，從而避免水從焊接腳與金屬殼體之間的空隙流 到電連接器的的PCB板上，進一步起到防水作用；且金屬外 殼40在對應卡持孔131處設有内凹外凸的封擋部42以封住卡 持孔131，擋塊132容置於封擋部42内，使金屬外殼40與金 屬内殼10的配合更加緊密，防水效果更好。 【圖式簡單說明】 第一圖為本創作防水型電連接器一角度的結構立體圖。 第二圖為本創作防水型電連接器另一角度的結構立體圖。 第三圖為本創作防水型電連接器一個角度的立體分解圖。 第四圖為本創作防水型電連接器另一個角度的立體分解 圖。 第五圖為本創作防水型電連接器第三角度的立體分解圖。 【主要元件符號說明】 防水型電連接器 100 金屬内殼 10 蓋板 11 第一導引部 111 卡口 112 側板 12 第二導引部 121 基板 13 卡持孔 131 擋塊 132 第三導引部 133 收容空間 14 配合腔 15 絕緣本體 20 基部 21 卡塊 211 凸緣 212 卡槽 213 6 M383228 舌板 214 安裝孔 216 嵌合槽 22 接觸部 31 固定部 33 外殼底板 41 卡接部 43 側壁 45 端子槽 215 開孔 217 導電端子 30 端子焊接腳 32 金屬外殼 40 封擋部 42 通孔 44 焊接腳 46M383228-shaped base 21. The upper surface of the base portion 21 is provided with a block 211. Two flanges 212 are symmetrically disposed on both sides of the rear end of the base portion 21, and a locking groove 213 is formed between the two flanges 212. A fitting groove 22 is formed between the flange 212 and the base portion 21, and a front end portion of the base portion 21 is vertically protruded to form a tongue 214. A plurality of terminal slots 215 are defined in the tongue plate 214, and the terminal slots 215 extend through the base portion 21, and a mounting hole 216 is formed on the upper surface of the latching block 211. The bottom wall of the terminal slot 215 defines an opening extending through the tongue plate 214. 217. Referring to the third to fifth figures, the conductive terminal 30 has an elongated shape, and has a contact portion 31, a terminal soldering leg 32, and the end of the contact portion 31 is bent obliquely downward to form a fixing portion 33. Referring to the third to fifth figures, the metal casing 40 has a casing bottom plate 41 opposite to the substrate 13. The casing bottom plate 41 is provided with a concave and convex sealing portion 42 corresponding to the locking hole 131, and the rear edge of the casing bottom plate 41 is bent. A folding portion 44 is defined in the folding portion, and a through hole 44 is defined in the interface between the locking portion 43 and the outer casing bottom plate 41. The opposite side edges of the outer casing bottom plate 41 are respectively bent and extended with a side wall 45, and the side wall 45 is away from the side edge of the outer casing bottom plate 41. Solder legs 46 extend outwardly. During installation, the conductive terminal 30 is firstly inserted into the insulative housing 20 from the mounting hole 216, and the contact portion 31 is fixed in the terminal slot 215 of the tongue plate 214 to expose the terminal soldering leg 32 to the insulative housing 20; 20, together with the conductive terminal 30, is inserted into the accommodating space 14 from the rear of the metal inner casing 10, and the rear end of the substrate 13 is engaged in the fitting groove 22, and the block 211 is sealingly engaged with the bayonet 112. At this time, the base 21 is A mating cavity 15 is formed between the tongue plate 214 and the metal inner casing 10 and is inserted into the mating connector. Finally, the metal casing 40 is sleeved on the metal inner casing 10 and the insulative body 20, and the metal casing 40 is covered with the metal inner casing 10. The two substrates 13 and the two side plates 12 are integrally welded to the metal inner casing 10, and the engaging portion 43 at the rear of the metal casing 40 is engaged with the card slot 213. As described above, the metal casing 40 of the water-repellent electrical connector 100 of the present invention includes a substrate 13 provided with a holding hole 131 of the metal-clad inner casing 10 of the M383228, and covers the holding hole 131 of the substrate 13 to prevent water from being removed from the substrate. The holding hole 131 flows into the PCB of the electrical connector to ensure the normal operation of the circuit; in addition, the metal casing 40 is in contact with the metal inner casing 10 to serve as a grounding function instead of the welding leg of the prior art metal casing. Therefore, the water is prevented from flowing from the gap between the soldering leg and the metal casing to the PCB board of the electrical connector, further waterproofing; and the metal casing 40 is provided with a concave convex at the corresponding holding hole 131. The blocking portion 42 encloses the holding hole 131, and the stopper 132 is received in the blocking portion 42, so that the metal casing 40 and the metal inner casing 10 are more closely matched, and the waterproof effect is better. [Simple description of the drawing] The first figure is a perspective view of the structure of the waterproof connector of the creation. The second figure is a perspective view of the structure of the waterproof connector of the present invention from another angle. The third figure is an exploded perspective view of an angled electrical connector. The fourth figure is an exploded perspective view of another angle of the waterproof connector. The fifth figure is an exploded perspective view of the third angle of the water-repellent electrical connector. [Main component symbol description] Waterproof electrical connector 100 Metal inner casing 10 Cover plate 11 First guiding portion 111 Bayonet 112 Side plate 12 Second guiding portion 121 Base plate 13 Holding hole 131 Stop 132 Third guiding portion 133 accommodating space 14 mating cavity 15 insulating body 20 base 21 block 211 flange 212 card slot 213 6 M383228 tongue plate 214 mounting hole 216 fitting groove 22 contact portion 31 fixing portion 33 housing bottom plate 41 snap portion 43 side wall 45 terminal groove 215 opening 217 conductive terminal 30 terminal soldering foot 32 metal housing 40 blocking portion 42 through hole 44 soldering foot 46