M419287 五、新型說明： 【新型所屬之技術領域】 [0001] 本創作涉及一種電連接器，尤其涉及一種具有遮蔽殼體 之電連接器。 【先前技術】 [0002] 一種電連接器，其包括絕緣本體、固定於絕緣本體的導 電端子及覆蓋於絕緣本體外側的遮蔽殼體，遮蔽殼體與 絕緣本體注塑成型，但在成型時，熔化成液態的塑膠容 易發生溢膠現象，從而影響產品的性能及外觀。 [0003] 故，有必要設計一種新的電連接器，以克服上述問題。 【新型内容】 [0004] 本創作之目的在於提供一種電連接器，其提供了防溢膠 的遮蔽殼體。M419287 V. New description: [New technical field] [0001] The present invention relates to an electrical connector, and more particularly to an electrical connector having a shielding housing. [Previous Art] [0002] An electrical connector includes an insulative housing, a conductive terminal fixed to the insulative housing, and a shielding housing covering the outer side of the insulative housing. The shielding housing and the insulative housing are injection molded, but are melted during molding. Plastics that are in liquid form are prone to gelation, which affects the performance and appearance of the product. [0003] Therefore, it is necessary to design a new electrical connector to overcome the above problems. [New Content] [0004] The purpose of the present invention is to provide an electrical connector that provides a shielded housing that is resistant to spillage.
[0005] 爲實現前述目的，本創作之技術方案为一種電連接器， 其包括絕緣本體、固定於絕緣本體的導電端子及套設於 絕緣本體外側的遮蔽殼體，絕緣本體包括固定部及自固 定部向前延伸的對接部，導電端子具有位於對接部的接 觸部，遮蔽殼體的後端部係採用注塑式成型方式固定於 絕緣本體的固定部外側，前端部則包圍對接部，該遮蔽 殼體具有内壁面，遮蔽殼體的前端部與後端部之間形成 前低後高的台階部。 [0006] 與先前技術相比，本創作之電連接器具有如下功效：台 階部可避免絕緣本體注塑成型時塑膠流向外溢出。 表單編號A0101 第3頁/共15頁 [0007]M419287 【實施方式】 請參看m第五圖’本創作揭示了—種符合 USB(微型通用串行總線）傳輸協議的電連接器1〇〇。 [0008] 請參看第-圖及第二圖’電連接器1QQ包括絕緣本體！、 固定於絕緣本體的導電端子2、固定於絕緣本體%側的' 蔽殼體3及位於遮蔽殼體兩側的翼部4 ^ 遮 [0009] 結合第三圖及第四圖，電連接器1〇〇定義了前後方向（、 即對接方向）。絕緣本體包括位於前端的舌板狀對接部 及位於後端的固定部12，對接部11可與插頭連接器（未 不）對接端配合，而固定部12則用於將絕緣本體固定於遮 蔽忒體3。對接部11在其下表面形成複數前後方向的端子 槽111。固定部12則設有與端子槽ill連通的固持槽 ，該固持槽貫穿固定部12 ^固定部12還具有與遮蔽殼體 配合的上、下端面122、123。 [0010] 遮蔽殼體3呈前後開口的框狀，其具有内壁面31 ◊遮蔽殼 體採用抽引式成型或抽出式成型，如此便不存在接縫， 從而避免了鉚接或焊接的接縫處容易開裂的問題。絕緣 本體1與遮蔽殼體3則是採用注塑式成型，前述上、下端 面122、123分別貼靠於内壁面31。内壁面31設有複數外 大内小的楔形定位孔311，在注塑成型時，絕緣本體1在 上、下端面122、123則形成複數與定位孔311配合的楔 形定位柱112，藉此可增強絕緣本體1與遮蔽殼體3的固持 強度。結合第五圖，遮蔽殼體3後端部33較前端部34的厚 度大，從而在内壁面31形成一前低後高的台階部312，本 處高低的概念係指後端部較前端部向内側突出。在利用 表單编號A0101 第4頁/共15頁 兩模仁成型絕緣本體1時，位於前端的模仁恰好抵在該台 階部312上，減小塑膠流發生溢膠現象，即若遮蔽殼體與 模仁位於同高平面上，塑膠流很有可能自遮蔽殼體與模 仁之間的間隙向前溢出〇同時，該台階部31 2還可以增加 塑膠成型位置的準確性。前端部34包圍對接部11以形成 對接腔30，後端部固定於固定部12的外側。結合第三圖 ’遮蔽殼體3的前端部34自後向前分為三段式，呈逐漸向 外擴展狀’自前向後依次為第一段301、第二段3〇2及第 二段303，在對接方向上對接部的前端面113位於第二段 302的範圍内。 [0011] 絕緣本體1與遮蔽殼體3成型後，將導電端子2自後向前裝 入絕緣本體1 »導電端子2具有收容於端子槽111的接觸部 21、自接觸部向後延伸且收容於固持槽121的固持部22及 自固持部向後延伸的焊接部23，其中焊接部23略低於接 觸部21及固持部22。結合第五圖，接觸部21位於對接部 11的下表面110。固持部22兩側設有倒刺221，該倒刺可 與固持槽121的内壁發生干涉，以防止對接時導電端子2 發生退離。下面需要將電連接器100固定到印刷電路板上 (未圖示），本實施例中，所採用的定位件係位於遮蔽殼 體3兩側的翼部4。 [0012] 翼部4包括焊接至遮蔽殼體3的焊接部41、與焊接部平行 的配合部42及連接焊接部與配合部的連接部43。配合部 42大致呈“凸”形，其包括抵靠在印刷電路板上的抵持 部4 21及插設於印刷電路板對應定位孔的插接部4 2 2，插 接部422自抵持部延伸且其寬度較小。在較佳實施例中， 表單編號A0101 第5頁/共15頁 M419287 焊接部41係採用鐳射技術焊接於遮蔽殼體3的兩側。 [0013] 特別地，結合第一圖及第四圖，自電連接器100的前端部 34向後向對接腔30看去，該對接腔的内壁面係由固定部 12的前端面124及位於前端面124外側的遮蔽殼體的台階 面構成。 【圖式簡單說明】 [0014] 第一圖係本創作電連接器之立體圖； [0015] 第二圖係本創作電連接器之立體圖； [0016] 第三圖係本創作電連接器之立體分解圖； [0017] 第四圖係本創作電連接器之立體分解圖；及 [0018] 第五圖係本創作電連接器之剖視圖。 【主要元件符號說明】 [0019] 電連接器：100 [0020] 絕緣本體：1 [0021] 對接部：11 [0022] 下表面：110 [0023] 端子槽：111 [0024] 定位柱：112 [0025] 前端面：113 [0026] 固定部：1 2 [0027] 固持槽：121 表單编號A0101 第6頁/共15頁 M419287[0005] In order to achieve the foregoing object, the technical solution of the present invention is an electrical connector, which includes an insulative housing, a conductive terminal fixed to the insulative housing, and a shielding housing sleeved on the outer side of the insulative housing. The insulative housing includes a fixing portion and The abutting portion extending forwardly of the fixing portion, the conductive terminal has a contact portion at the abutting portion, the rear end portion of the shielding shell is fixed to the outer side of the fixing portion of the insulating body by injection molding, and the front end portion surrounds the abutting portion, the shielding portion The housing has an inner wall surface, and a step portion that is front low and rear high is formed between the front end portion and the rear end portion of the shielding case. [0006] Compared with the prior art, the electrical connector of the present invention has the following effects: the step portion can prevent the plastic flow from overflowing when the insulating body is injection molded. Form No. A0101 Page 3 of 15 [0007] M419287 [Embodiment] Please refer to the fifth figure of m. This work discloses an electrical connector that conforms to the USB (Micro Universal Serial Bus) transmission protocol. [0008] Please refer to the first and second figures' Electrical connector 1QQ includes an insulating body! The conductive terminal 2 fixed to the insulating body 2, the shielding shell 3 fixed to the side of the insulating body, and the wing portion 4 on both sides of the shielding housing. [0009] In combination with the third and fourth figures, the electrical connector 1〇〇 defines the front-rear direction (ie, the docking direction). The insulative housing includes a tongue-like abutting portion at the front end and a fixing portion 12 at the rear end. The mating portion 11 can be mated with the plug connector (not) but the fixing portion 12 is used for fixing the insulating body to the shielding body. 3. The abutting portion 11 is formed with a plurality of terminal grooves 111 in the front-rear direction on the lower surface thereof. The fixing portion 12 is provided with a holding groove that communicates with the terminal groove ill. The holding groove penetrates the fixing portion 12. The fixing portion 12 further has upper and lower end faces 122, 123 that cooperate with the shielding case. [0010] The shielding shell 3 has a frame shape which is open front and rear, and has an inner wall surface 31. The shielding shell is formed by drawing or withdrawing, so that no seam is formed, thereby avoiding seams of riveting or welding. Easy to crack the problem. The insulating body 1 and the shielding case 3 are injection molded, and the upper and lower end faces 122, 123 abut against the inner wall surface 31, respectively. The inner wall surface 31 is provided with a plurality of outer large and small wedge-shaped positioning holes 311. During the injection molding, the upper and lower end surfaces 122 and 123 of the insulating body 1 form a plurality of wedge-shaped positioning posts 112 that cooperate with the positioning holes 311, thereby enhancing The holding strength of the insulating body 1 and the shielding case 3. 5, the rear end portion 33 of the shielding shell 3 is thicker than the front end portion 34, so that the inner wall surface 31 forms a step portion 312 with a front lower rear height. The concept of the height of the front portion refers to the rear end portion and the front end portion. Prominent to the inside. When the insulating body 1 is formed by the two molds using the form number A0101, the mold core at the front end just abuts against the step portion 312, thereby reducing the phenomenon of overflow of the plastic flow, that is, if the housing is shielded. Located on the same high plane as the mold core, the plastic flow is likely to overflow forward from the gap between the shield shell and the mold core. At the same time, the step portion 31 2 can also increase the accuracy of the plastic molding position. The front end portion 34 surrounds the abutting portion 11 to form a docking chamber 30, and the rear end portion is fixed to the outside of the fixing portion 12. Referring to the third figure, the front end portion 34 of the shielding shell 3 is divided into three sections from the back to the front, and is gradually expanded outwardly. The first section 301, the second section 3〇2, and the second section 303 are sequentially from front to back. The front end face 113 of the abutting portion is located within the range of the second segment 302 in the mating direction. [0011] After the insulating body 1 and the shielding case 3 are molded, the conductive terminal 2 is inserted into the insulating body 1 from the back to the front. The conductive terminal 2 has a contact portion 21 received in the terminal slot 111, extends rearward from the contact portion, and is received in the contact portion. The holding portion 22 of the holding groove 121 and the welded portion 23 extending rearward from the holding portion, wherein the welded portion 23 is slightly lower than the contact portion 21 and the holding portion 22. In conjunction with the fifth figure, the contact portion 21 is located on the lower surface 110 of the abutting portion 11. Barbs 221 are disposed on both sides of the holding portion 22, and the barbs can interfere with the inner wall of the holding groove 121 to prevent the conductive terminals 2 from retreating when docked. Next, the electrical connector 100 needs to be fixed to a printed circuit board (not shown). In this embodiment, the positioning members are used to be located on the wings 4 on both sides of the shielding case 3. [0012] The wing portion 4 includes a welded portion 41 welded to the shield case 3, a fitting portion 42 parallel to the welded portion, and a connecting portion 43 connecting the welded portion and the fitting portion. The mating portion 42 has a substantially "convex" shape, and includes a resisting portion 4 21 that abuts on the printed circuit board and a plug portion 42 2 that is inserted into the corresponding positioning hole of the printed circuit board. The plug portion 422 is self-resisting. The section extends and its width is small. In the preferred embodiment, Form No. A0101 Page 5 of 15 M419287 Weld 41 is welded to both sides of the shield case 3 by laser technology. [0013] In particular, in conjunction with the first and fourth figures, the front end portion 34 of the electrical connector 100 is viewed rearwardly toward the docking chamber 30. The inner wall surface of the mating cavity is defined by the front end surface 124 of the fixing portion 12 and at the front end. The stepped surface of the shielding case outside the surface 124 is formed. BRIEF DESCRIPTION OF THE DRAWINGS [0014] The first figure is a perspective view of the present electrical connector; [0015] The second figure is a perspective view of the present electrical connector; [0016] The third figure is the three-dimensional image of the present electrical connector [0017] The fourth drawing is an exploded perspective view of the present electrical connector; and [0018] The fifth drawing is a cross-sectional view of the present electrical connector. [Main component symbol description] [0019] Electrical connector: 100 [0020] Insulating body: 1 [0021] Docking portion: 11 [0022] Lower surface: 110 [0023] Terminal slot: 111 [0024] Positioning post: 112 [ 0025] Front end face: 113 [0026] Fixing part: 1 2 [0027] Holding groove: 121 Form number A0101 Page 6 of 15 M419287
[0028] 上端面：122 [0029] 下端面：123 [0030] 前端面：1 24 [0031] 導電端子：2 [0032] 接觸部：21 [0033] 固持部：22 [0034] 倒刺：221 [0035] 焊接部：23 [0036] 遮蔽殼體：3 [0037] 第一段：301 [0038] 第二段：302 [0039] 第三段：303 [0040] 對接腔：30 [0041] 内壁面：31 [0042] 定位孔：311 [0043] 台階部：31 2 [0044] 後端部：33 [0045] 前端部：34 [0046] 翼部：4 表單編號A0101 第7頁/共15頁 M419287 [0047] 焊接部 ：41 [0048] 配合部 ：42 [0049] 抵持部 ：421 [0050] 插接部 ：422 [0051] 連接部 ：43 表單編號A0101 第8頁/共15頁[0028] Upper end face: 122 [0029] Lower end face: 123 [0030] Front end face: 1 24 [0031] Conductive terminal: 2 [0032] Contact portion: 21 [0033] Holding portion: 22 [0034] Barb: 221 [0035] Weld: 23 [0036] Shielding housing: 3 [0037] First paragraph: 301 [0038] Second paragraph: 302 [0039] Third paragraph: 303 [0040] Docking cavity: 30 [0041] Wall: 31 [0042] Positioning hole: 311 [0043] Step: 31 2 [0044] Rear end: 33 [0045] Front end: 34 [0046] Wing: 4 Form No. A0101 Page 7 of 15 M419287 [0047] Weld: 41 [0048] Mating part: 42 [0049] Resisting part: 421 [0050] Plug part: 422 [0051] Connection part: 43 Form number A0101 Page 8 of 15