M419276 五、新型說明： 【新型所屬之技術領域】 本創作是有關於一種電連接器，特別是有關於一種 可穩定電性接觸端子之電連接器 【先前技術】 隨著消費性電子不斷朝輕、薄、短、小方向發展， 例如在移動電話和PDA以及數碼相機等移動式設備 中，相應於移動式設備的小型化和可檇式設計，就要 求連接器尺寸縮小並具有薄斷面（Low prof i le)特 徵，另外，移動通訊發展的多功能性，因此，安裝在 電路板上的電子元件封裝密度增加，就需要對應精密 排列的插頭和插座端子，因此不斷降低端子之間的排 列密度的插頭同插座的配合高度，同時保證端子能在 局限的空間内保持穩定的拔出保持力就成為目前業内 研究的方向。 如中國專利公告第1237662號，所揭示的是一種板 對板母座連接器結構，所述端子是經金屬片衝壓折 彎，由板簧部、裝配部及端部三大部分組成，其中裝 配部上包括有第一臂、第二臂及第二彎曲部，而板簀 部上包括有接觸頂點；該端子是從上而下插固於插座 本體的預設孔内固定，再通過板簧部的接觸頂點和第 二彎曲部共同形成雙觸點來與插頭連接器進行接觸以 3 M419276 便電訊傳輸。然而，該端子在組裝過程中是僅依靠第 一臂上的凸起來干涉固定於絕緣本體的預設孔内的， 而在第二臂上未作任何固定，在這種情況下，由於所 有端子第一臂上的凸起均位於同一直線上，且呈高密 度排列於局限的插座本體空間内，故每一端子上的凸 起大小就有所限制，而致使單個端子的拔出力非常有 限，當在與公座連接器進行多次對接後，很容易使端 子產生鬆動，造成電氣特性的嚴重不穩定；再者，在 • 進行SMT過程中也很容易因高溫焊接影響使端子產生 鬆動，造成焊接不良，產生接觸不穩定的後果。 【新型内容】 習知電連接器之結構對於端子組裝固定的可靠度 不佳，導致電連接器容易產生客訴的問題。 本創作提供一種電連接器，包括絕緣本體以及複數 端子，其中絕緣本體設有複數容置槽，每一容置槽係 * 由一側壁與連接於側壁之一擋止部所構成之凹陷結 構。複數端子設置於絕緣本體，其中每一端子係設有 嵌入成型於絕緣本體上之一固定部及自固定部沿著容 置槽延伸之一彈性部，彈性部包括有一水平臂、連接 水平臂且朝上方延伸之一接觸臂及連接接觸臂且朝側 壁與擋止部延伸之一緩衝臂，缓衝臂設有可分別頂抵 於側壁與擋止部之一第一頂抵段與一第二頂抵段以形 成一凸狀圓弧結構。 4 M419276 本創作所提供電連接器，其係將端子之固定部通過 嵌入成型的方式完全包覆固定於絕緣本體上，如此可 得到最佳地固持端子的效果，以解決習知利用干涉組 裝端子所容易造成之端子產生鬆動與電氣特性不穩定 的問題。另外，本創作之電連接器在端子之彈性部末 端還增設有緩衝臂，利用緩衝臂之第一頂抵段與第二 頂抵段分別頂抵於側壁與擋止部上，可以達到防止接 觸臂過度變形以及提供接觸臂足夠的彈性回復力的目 鲁 的。 【實施方式】 請參閱第一圖及第六圖所示，本創作之電連接器1 包括有縱長之絕緣本體2及沿縱長方向排列並設置於 絕緣本體2上之複數端子3。 在本實施例中，絕緣本體2係由第一絕緣體21及 第二絕緣體22所構成，其中端子3是以嵌入成型 (insert molding)方式先與第一絕緣體21結合固定 成一體，之後將第二絕緣體22以超音波振盪加工法或 者是熱壓加工法與第一絕緣體21結合固定成一組合 體結構，並且將端子3包覆固定於第一絕緣體21與第 二絕緣體22之間。 第一絕緣體21包含有主體211，於主體211上具 有收容第二絕緣體22的開口 212以及用以包圍構成開 5 M419276 口 212的二長臂213，其中端子3是以嵌入成型方式 先結合固定於長臂213上。 第二絕緣體22具有一基部221，該基部221提供 與對接連接器4嵌置，於基部221長轴方向二側面向 内凹各設有複數容置槽222，該等容置槽222貫穿基 部221上表面，每一容置槽222係由基部221之一側 壁223與連接於該側壁223之一擋止部224所構成之 凹陷結構。連接基部221二側的外緣部225兩側的底 • 部上設有與容置槽222相對應的溝槽226，在每一溝 槽226的内端處設有貫穿外緣部225底部的鏤空部 227，該等鏤空部227可在於端子3受力時，適時承受 端子3底部的微量變形位移量，以分散端子3的受力， 避免應力集中於端子3上。在本實施例中，第二絕緣 體22係利用外緣部225接觸於第一絕緣體21之主體 211與長臂213上，並且以超音波振盪加工法將第二 絕緣體22與第一絕緣體21結合固定成一體。 ® 複數端子3包括有通過金屬沖壓一體成形之一焊 接部31、固定部32及彈性部33，固定部32位於焊接 部31與彈性部33之間，其中固定部32嵌入成型於絕 緣本體2上，彈性部33自固定部32沿著容置槽222 延伸，焊接部31自固定部32朝著絕緣本體2外側沿 伸。固定部32由第一固定臂321、第二固定臂322及 連接第一固定臂321和第二固定臂322的連接臂323 構成。 6 M419276 彈性部33是從第二固定臂322的末端開始延伸， 包括依次設有位於溝槽226底部的水平臂331、連接 水平臂331且朝上方延伸之接觸臂332及連接接觸臂 332且朝側壁223與擋止部224延伸之緩衝臂333，緩 衝臂333設有可分別頂抵於侧壁223與檔止部224之 一第一頂抵段334與一第二頂抵段335以形成一凸狀 圓弧結構，其中接觸臂332、水平臂331與第二固定 臂322係呈“U”型的結構設計以形成與對接連接器4 對接的接觸空間，從接觸臂332的後端繼續延伸形成 有一凸狀圓弧結構的緩衝臂333。 當對接連接器4對接插入於端子3之彈性部33 時’彈性部33受作用力影響產生位移，由於此作用力 包括有向著下方與向著前方的力量，而此時彈性部33 的緩衝臂333之第一頂抵段334係可向前頂抵於侧壁 223 ’第二頂抵段335係可向下頂抵於擋止部224上， 以防止接觸臂332受作用力影響過度變形，並且提供 接觸臂332足夠的彈性回復力，同時也帶動水平臂331 向鏤空部227靠近，藉由位於容置槽222内之接觸臂 332與緩衝臂333之間所形成之緩衝空間336與鏤空 部227的結構，以提供給彈性部33足夠的彈性變形的 活動空間’避免應力集中於彈性部33上而造成彈性部 33失去彈性。另外，為了使對接連接器4能較易施力 對接於接觸臂332上，水平臂331與接觸臂332之間 的失角係設計介於70度至90度之間，而擋止部2二 7 M419276 係鄰近於接觸臂332與水平臂331之連接處，以獲得 較佳的作用效果。 綜上所述，本創作之電連接器其係將端子之固定部 通過嵌入成型的方式完全包覆固定於絕緣本體上，如 此可得到最佳地固持端子的效果，以解決習知利用干 涉組裝端子所容易造成之端子產生鬆動與電氣特性不 穩定的問題。另外，本創作之電連接器在端子之彈性 部末端還增設有緩衝臂，利用緩衝臂之第一頂抵段與 • 第二頂抵段分別頂抵於側壁與擋止部上，可以達到防 止接觸臂受外力作用過度變形以及提供接觸臂足夠的 彈性回復力的目的。 上述詳細說明為針對本創作一種較佳之可行實施 例說明而已，惟該實施例並非用以限定本創作之申請 專利範圍，凡其它未脫離本創作所揭示之技藝精神下 所完成之均等變化與修飾變更，均應包含於本創作所 涵蓋之專利範圍中。 【圖式簡單說明】 第一圖係本創作之電連接器的立體示意圖。 第二圖係第一圖中之電連接器的立體分解示意圖。 第三圖係第二圖中之第二絕緣體的立體示意圖。 第四圖係第二圖中之端子的立體示意圖。 第五圖係第一圖中之電連接器沿A A線段的剖面示意圖。 8 M419276 第六圖係第五圖中之電連接器與對接連接器插接的剖面示 意圖。 【主要元件符號說明】 1 電連接器 2 絕緣本體 21 第一絕緣體 211主體M419276 V. New description: [New technical field] This creation is about an electrical connector, especially for an electrical connector that can stabilize electrical contact terminals. [Prior Art] With consumer electronics constantly moving towards light In thin, short, and small directions, for example, in mobile devices such as mobile phones and PDAs and digital cameras, the miniaturization and the sturdy design of mobile devices require connectors to be downsized and have a thin profile ( Low prof i le) features, in addition, the versatility of mobile communication development, therefore, the density of electronic components mounted on the circuit board increases, it requires the correspondingly arranged plug and socket terminals, thus continuously reducing the arrangement between the terminals The density of the plug and the height of the socket, while ensuring that the terminal can maintain a stable pull-out retention in the confined space has become the direction of current research in the industry. As disclosed in Chinese Patent Publication No. 1237662, a board-to-board female connector structure is disclosed. The terminal is stamped and bent by a metal sheet, and is composed of a leaf spring portion, a fitting portion and an end portion, wherein assembly The first arm, the second arm and the second bending portion are included on the upper part, and the contact portion is included in the upper part of the socket body; the terminal is fixed in the preset hole of the socket body from the top to the bottom, and then passed through the leaf spring The contact apex and the second bend together form a double contact to make contact with the plug connector for 3 M419276 telecom transmission. However, the terminal is only interfered in the predetermined hole of the insulating body by the protrusion on the first arm during the assembly process, and is not fixed on the second arm, in this case, due to all the terminals. The protrusions on the first arm are all on the same straight line and are arranged in a high density in the confined socket body space, so the size of the protrusion on each terminal is limited, and the pull-out force of the single terminal is very limited. When the connector is connected to the male connector multiple times, it is easy to loosen the terminal, which causes serious instability of the electrical characteristics. Moreover, during the SMT process, the terminal is easily loosened due to the influence of high temperature welding. Causes poor soldering, resulting in unstable contact. [New content] The structure of the conventional electrical connector is not reliable for the assembly of the terminal, which causes the electrical connector to be prone to complaints. The present invention provides an electrical connector comprising an insulative housing and a plurality of terminals, wherein the insulative housing is provided with a plurality of receiving slots, each of which is formed by a side wall and a recessed structure formed by a stop portion connected to one of the side walls. The plurality of terminals are disposed on the insulative housing, wherein each of the terminals is provided with a fixing portion embedded in the insulative housing and an elastic portion extending from the fixing portion along the receiving slot. The elastic portion includes a horizontal arm and a horizontal arm. a contact arm extending upwardly and a buffer arm connecting the contact arm and extending toward the side wall and the stopping portion, the buffer arm being provided with a first abutting portion and a second portion respectively capable of abutting against the side wall and the stopping portion The top abuts the segments to form a convex arc structure. 4 M419276 The electrical connector provided by the present invention completely covers and fixes the fixing portion of the terminal to the insulating body by insert molding, so that the effect of optimally holding the terminal can be obtained, so as to solve the conventional assembly of the terminal by interference. The terminals that are easily caused are loose and the electrical characteristics are unstable. In addition, the electrical connector of the present invention further has a buffer arm at the end of the elastic portion of the terminal, and the first abutting portion and the second abutting portion of the buffer arm respectively abut against the side wall and the stopping portion, thereby preventing contact Excessive deformation of the arm and the provision of sufficient elastic restoring force of the contact arm. [Embodiment] Referring to the first and sixth figures, the electrical connector 1 of the present invention comprises an elongated insulating body 2 and a plurality of terminals 3 arranged in the longitudinal direction and disposed on the insulative housing 2. In the present embodiment, the insulative housing 2 is composed of a first insulator 21 and a second insulator 22, wherein the terminal 3 is first integrated with the first insulator 21 by insert molding, and then the second. The insulator 22 is fixed in a combined structure with the first insulator 21 by ultrasonic wave processing or hot press processing, and the terminal 3 is covered and fixed between the first insulator 21 and the second insulator 22. The first insulator 21 includes a main body 211. The main body 211 has an opening 212 for receiving the second insulator 22 and a second arm 213 for surrounding the port M212276. The terminal 3 is firstly fixed and fixed by insert molding. On the long arm 213. The second insulator 22 has a base portion 221, and the base portion 221 is provided to be embedded with the mating connector 4, and a plurality of accommodating grooves 222 are formed in each of the two sides of the base portion 221 in the longitudinal direction of the base portion 221. The accommodating grooves 222 extend through the base portion 221. In the upper surface, each of the accommodating grooves 222 is formed by a side wall 223 of the base portion 221 and a recessed structure formed by the stopper portion 224 connected to the side wall 223. A groove 226 corresponding to the accommodating groove 222 is provided on the bottom portion of both sides of the outer edge portion 225 on both sides of the connecting base 221, and a bottom portion of the outer edge portion 225 is provided at the inner end of each groove 226. In the hollow portion 227, the hollow portion 227 may receive a small amount of deformation displacement at the bottom of the terminal 3 when the terminal 3 is stressed, so as to disperse the force of the terminal 3 and prevent stress from being concentrated on the terminal 3. In this embodiment, the second insulator 22 is in contact with the main body 211 and the long arm 213 of the first insulator 21 by the outer edge portion 225, and the second insulator 22 is fixed to the first insulator 21 by ultrasonic wave processing. In one. The plurality of terminals 3 include a welded portion 31 integrally formed by metal stamping, a fixing portion 32, and an elastic portion 33. The fixing portion 32 is located between the welded portion 31 and the elastic portion 33, wherein the fixing portion 32 is insert-molded on the insulating body 2. The elastic portion 33 extends from the fixing portion 32 along the accommodating groove 222, and the welded portion 31 extends from the fixing portion 32 toward the outer side of the insulating body 2. The fixing portion 32 is composed of a first fixing arm 321, a second fixing arm 322, and a connecting arm 323 that connects the first fixing arm 321 and the second fixing arm 322. 6 M419276 The elastic portion 33 extends from the end of the second fixing arm 322, and includes a horizontal arm 331 at the bottom of the groove 226, a contact arm 332 connecting the horizontal arm 331 and extending upward, and a connecting contact arm 332. The buffer arm 333 extending from the side wall 223 and the stopping portion 224, the buffer arm 333 is disposed to abut against the first abutting portion 334 and the second abutting portion 335 of the side wall 223 and the stopping portion 224 respectively to form a The convex arc structure, wherein the contact arm 332, the horizontal arm 331 and the second fixing arm 322 are in a "U" shape to form a contact space with the mating connector 4, and continue to extend from the rear end of the contact arm 332. A buffer arm 333 having a convex circular arc structure is formed. When the butt connector 4 is butted into the elastic portion 33 of the terminal 3, the elastic portion 33 is displaced by the force, and since the force includes the downward force and the forward force, the buffer arm 333 of the elastic portion 33 at this time. The first abutting portion 334 can be forwardly abutted against the side wall 223 ′. The second abutting portion 335 can be pressed down against the stopping portion 224 to prevent the contact arm 332 from being excessively deformed by the force, and The contact arm 332 is provided with sufficient elastic restoring force, and also drives the horizontal arm 331 toward the hollow portion 227. The buffer space 336 and the hollow portion 227 formed between the contact arm 332 and the buffer arm 333 located in the receiving groove 222 are provided. The structure is such that the movable space provided to the elastic portion 33 with sufficient elastic deformation 'avoids stress concentrated on the elastic portion 33 causes the elastic portion 33 to lose elasticity. In addition, in order to make the docking connector 4 easier to apply to the contact arm 332, the angle between the horizontal arm 331 and the contact arm 332 is between 70 degrees and 90 degrees, and the blocking portion 2 is 7 M419276 is adjacent to the junction of the contact arm 332 and the horizontal arm 331 to obtain a better effect. In summary, the electrical connector of the present invention completely covers and fixes the fixing portion of the terminal to the insulating body by insert molding, so that the effect of optimally holding the terminal can be obtained, so as to solve the conventional interference assembly. The terminals that are easily caused by the terminals are loose and the electrical characteristics are unstable. In addition, the electrical connector of the present invention further has a buffer arm at the end of the elastic portion of the terminal, and the first abutting portion of the buffer arm and the second abutting portion respectively abut against the side wall and the stopping portion, thereby preventing The contact arm is excessively deformed by an external force and provides a sufficient elastic restoring force of the contact arm. The above detailed description is intended to illustrate a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and other equivalents and modifications may be made without departing from the spirit of the invention. Changes are to be included in the scope of patents covered by this creation. [Simple description of the drawing] The first figure is a three-dimensional schematic diagram of the electrical connector of the present invention. The second figure is a perspective exploded view of the electrical connector in the first figure. The third figure is a perspective view of the second insulator in the second figure. The fourth figure is a perspective view of the terminals in the second figure. The fifth figure is a schematic cross-sectional view of the electrical connector in the first figure along the A A line segment. 8 M419276 Figure 6 is a cross-sectional view of the electrical connector and docking connector in the fifth diagram. [Main component symbol description] 1 Electrical connector 2 Insulation body 21 First insulator 211 body
212 開口 213長臂 22 第二絕緣體 221基部212 opening 213 long arm 22 second insulator 221 base
222容置槽 223側壁 224擋止部 225外緣部 226溝槽 227鏤空部 3 端子 31 焊接部 32 固定部 321第一固定臂 322第二固定臂 323連接臂 9 M419276 33 彈性部 331水平臂 332接觸臂 333緩衝臂 334第一頂抵段 335第二頂抵段 336缓衝空間 4 對接連接器222 accommodating groove 223 side wall 224 stopper portion 225 outer edge portion 226 groove 227 hollow portion 3 terminal 31 welding portion 32 fixing portion 321 first fixing arm 322 second fixing arm 323 connecting arm 9 M419276 33 elastic portion 331 horizontal arm 332 Contact arm 333 buffer arm 334 first abutting section 335 second abutting section 336 buffer space 4 docking connector