M378522 五、新型說明： 【新型所屬之技術領域】 本創作涉及一種端子，尤其涉及一種音頻插座端子。 【先前技術】 按，請參閱第五圖，一種習知的音頻插座端子100’具有一 矩形板狀的固持部10’、一從固持部10’下邊緣中部向下垂直彎 折延伸形成的焊接部11’、一從固持部10’前邊緣中部向左向前 傾斜延伸形成的彈臂12’及一從彈臂12’末端彎折延伸形成的 接觸部13’。 請參閱第六圖及第七圖，外接的音頻插頭300’插入到音頻 插座連接器200’内並與所述彈臂12’之接觸部13’接觸，使音頻 插頭300’與音頻插座端子100’形成電連接，以傳輸音頻訊號。 惟，上述音頻插座端子100’的彈臂12’長度短，彈性變形 能力差，與音頻插頭300’接觸時，彈臂12’容易出現不能可靠 抵接音頻插頭300’，或因抵靠音頻插頭300’力度太大而反作用 力變太大從而引起塑性變形等情況，如此易引起接觸性能下 降，從而影響音頻訊號傳輸的質量。而增加彈臂12’的長度時， 則會容易增加音頻插座連接器200’的整體長度。 【新型内容】 本創作的主要目的係針對上述習知技術存在之缺陷提供 一種音頻插座端子，該音頻插座端子可不增加音頻插座連接器 的整體長度且確保音頻訊號的穩定傳輸。 為實現上述目的，本創作音頻插座端子包括一固持部、一 焊接部及一彈臂。焊接部與固持部相連。彈臂係由固持部大致 向前延伸形成的一縱向延伸部及由該縱向延伸部的末端向一 側大致弧形彎折延伸形成的一周向延伸部所組成，從彈臂的末 3 M378522 端延周向延伸部方向向一側傾斜延伸形成一接觸部。 由上所述，本創作音頻插座端子藉由彈臂設置一縱向延伸 部和一周向延伸部，可以在不增加音頻插座連接器的整體長度 的情況下提高彈性變形能力，從而確保音頻訊號的穩定傳輸。 【實施方式】 為詳細說明本創作之技術内容、構造特徵及其所達成之目 的與功效，下面將結合實施例並配合圖式詳予說明。 請參閱第一圖，本創作音頻插座端子1具有一矩形板狀的 固持部10、一從固持部10下邊緣中部向左側垂直彎折延伸形 成的焊接部U、一從固持部10前邊緣中部大致向前延伸形成 的一縱向延伸部121及由該縱向延伸部121的末端向一侧大致 狐形延伸形成的一周向延伸部122而組成的彈臂12及從彈臂 12的末端延周向延伸部122方向向一側傾斜延伸形成一接觸 部13。固持部10大致中部向外沖切有一矩形的卡扣101 ’焊 接部11下部設有一半圓形開口 111，接觸部13的上表面上凸 設有一凸包131。 請參閱第二圖和第三圖’本創作之音頻插座端子1應用於 一種音頻插座連接器2中’該音頻插座連接器2具有一絕緣本 體20，絕緣本體20内開設有一向後延伸的插接孔21 ’絕緣本 體20前部開設有一端子槽22，該端子槽22包括一於插接孔 21的左側壁上開設的與絕緣本體20下表面連通的固持槽 221、一於絕緣本體20前端下表面開設的與固持槽221和插接 孔21皆相通的彈臂槽222。固持槽221的左側槽壁上開設有一 貫穿絕緣本體20左壁且與固持槽221相連通的卡槽223。 組裝時，本創作之音頻插座端子1由音頻插座連接器2之 絕緣本體20前部的下表面向上插入絕緣本體20之端子槽22, 4 M378522 固持部10插設於固持槽221内，彈臂12伸入彈臂槽222内， 凸包131可活動地伸入到插接孔21内，卡扣101卡持於卡槽 223中，焊接部11向左側伸出絕緣本體20並焊接固定於電路 板（圖中未標示）上，焊接部11之開口 111可增加焊錫之包 覆面積，從而使該音頻插座端子1固定插設於絕緣本體20内。 請參閱第一圖和第四圖，外接的音頻插頭3從插接孔21 插入時，音頻插頭3與音頻插座端子1之彈臂12相接觸，由 於彈臂12具有一縱向延伸部121及一周向延伸部122的組成 結構，易於可靠抵接音頻插頭3，且抵靠音頻插頭3之力度及 反作用於音頻插座端子1的力度不至於過大而引起塑性變形等 情況，從而使音頻插座端子1保持較好的接觸性能，增強導通 性。 由上所述，本創作音頻插座端子1藉由彈臂12設置一縱 向延伸部121和一周向延伸部122，可以在不增加音頻插座連 接器2的整體長度的情況下提高彈性變形能力，從而確保音頻 訊號的穩定傳輸。 【圖式簡單說明】 第一圖係本創作音頻插座端子之立體圖。 第二圖係一種應用本創作音頻插座端子的音頻插座連接 器之立體圖。 第三圖係第二圖所示音頻插座連接器之絕緣本體的立體 圖。 第四圖係第一圖所示音頻插座端子與音頻插頭之立體組 裝圖。 第五圖係習知音頻插座端子之立體圖。 5 M378522 第六圖係一種應用習知音頻插座端子的音頻插座連接器 之立體圖。 第七圖係第五圖所示習知音頻插座端子與音頻插頭之立 體組裝圖。 【主要元件符號說明】 音頻插座端子 1 固持部 10 卡扣 101 焊接部 11 開口 111 彈臂 12 縱向延伸部 121 周向延伸部 122 接觸部 13 凸包 131 音頻插座連接器 2 絕緣本體 20 插接孔 21 端子槽 22 固持槽 221 彈臂槽 222 卡槽 223 音頻插頭 3M378522 V. New description: [New technical field] This creation relates to a terminal, in particular to an audio socket terminal. [Previous Art] Referring to FIG. 5, a conventional audio jack terminal 100' has a rectangular plate-shaped holding portion 10', and a welding formed by vertically bending downward from the middle of the lower edge of the holding portion 10'. The portion 11', a spring arm 12' extending obliquely forward from the middle of the front edge of the retaining portion 10', and a contact portion 13' extending from the end of the elastic arm 12'. Referring to the sixth and seventh figures, the external audio plug 300' is inserted into the audio socket connector 200' and is in contact with the contact portion 13' of the elastic arm 12' to make the audio plug 300' and the audio socket terminal 100 'Form an electrical connection to transmit audio signals. However, the length of the elastic arm 12' of the audio jack terminal 100' is short, and the elastic deformation capability is poor. When contacting the audio plug 300', the elastic arm 12' is prone to fail to reliably abut the audio plug 300', or because it is against the audio plug. The strength of the 300' is too large and the reaction force becomes too large to cause plastic deformation, which may cause the contact performance to deteriorate, thereby affecting the quality of the audio signal transmission. When the length of the elastic arm 12' is increased, the overall length of the audio receptacle connector 200' is easily increased. [New Content] The main purpose of the present invention is to provide an audio jack terminal for the defects of the above-mentioned prior art, which can increase the overall length of the audio jack connector and ensure stable transmission of the audio signal. To achieve the above object, the present audio jack terminal includes a holding portion, a soldering portion and a spring arm. The welded portion is connected to the holding portion. The elastic arm is composed of a longitudinal extension portion extending substantially forwardly from the retaining portion and a circumferentially extending portion extending from the distal end of the longitudinally extending portion to a substantially curved shape extending from one end, from the end of the elastic arm to the M378522 end The circumferential extension extends obliquely to one side to form a contact portion. As described above, the present audio jack terminal is provided with a longitudinal extension portion and a circumferential extension portion by the elastic arm, so that the elastic deformation capability can be improved without increasing the overall length of the audio receptacle connector, thereby ensuring the stability of the audio signal. transmission. [Embodiment] In order to explain the technical contents, structural features, and the objects and effects of the present invention in detail, the embodiments will be described in detail below with reference to the drawings. Referring to the first figure, the audio jack terminal 1 of the present invention has a rectangular plate-shaped retaining portion 10, a welded portion U formed by vertically bending from the middle of the lower edge of the lower edge of the retaining portion 10, and a middle portion of the front edge of the retaining portion 10. a longitudinally extending portion 121 extending substantially forwardly, and a spring arm 12 composed of a circumferentially extending portion 122 extending from a distal end of the longitudinally extending portion 121 toward a side of a substantially fox-shaped extension, and extending from the distal end of the elastic arm 12 The extending portion 122 extends obliquely to one side to form a contact portion 13. The holding portion 10 is punched substantially outwardly with a rectangular buckle 101. The lower portion of the welded portion 11 is provided with a semicircular opening 111, and a convex hull 131 is protruded from the upper surface of the contact portion 13. Referring to the second and third figures, the audio jack terminal 1 of the present invention is applied to an audio jack connector 2. The audio jack connector 2 has an insulative housing 20, and the insulative housing 20 has a rearwardly extending plug. A terminal slot 22 is defined in the front portion of the insulative housing 20, and the terminal slot 22 includes a holding slot 221 formed in the left side wall of the insertion hole 21 and communicating with the lower surface of the insulative housing 20, and a front end of the insulative housing 20 The elastic arm groove 222 is formed in the surface and communicates with the holding groove 221 and the insertion hole 21. A card slot 223 is formed in the left side wall of the holding slot 221 and extends through the left wall of the insulative housing 20 and communicates with the holding slot 221. When assembled, the audio jack terminal 1 of the present invention is inserted into the terminal slot 22 of the insulative housing 20 from the lower surface of the front portion of the insulative housing 20 of the audio jack connector 2, 4 M378522 the retaining portion 10 is inserted into the retaining slot 221, and the elastic arm 12 extends into the elastic arm slot 222, the convex hull 131 is movably inserted into the insertion hole 21, the buckle 101 is retained in the slot 223, and the soldering portion 11 extends to the left side of the insulating body 20 and is soldered to the circuit. In the plate (not shown), the opening 111 of the soldering portion 11 increases the coverage area of the solder, so that the audio socket terminal 1 is fixedly inserted into the insulative housing 20. Referring to the first and fourth figures, when the external audio plug 3 is inserted from the insertion hole 21, the audio plug 3 is in contact with the elastic arm 12 of the audio jack terminal 1, since the elastic arm 12 has a longitudinal extension 121 and one week. The structure of the extending portion 122 is easy to reliably abut the audio plug 3, and the force against the audio plug 3 and the force acting on the audio socket terminal 1 are not excessively large, causing plastic deformation, etc., so that the audio socket terminal 1 is maintained. Better contact performance and enhanced conductivity. As described above, the present audio jack terminal 1 is provided with a longitudinal extension portion 121 and a circumferential extension portion 122 by the elastic arm 12, so that the elastic deformation capability can be improved without increasing the overall length of the audio receptacle connector 2, thereby Ensure a stable transmission of audio signals. [Simple description of the diagram] The first picture is a perspective view of the audio socket terminal of the present creation. The second figure is a perspective view of an audio jack connector to which the audio jack terminal of the present invention is applied. The third figure is a perspective view of the insulative housing of the audio jack connector shown in the second figure. The fourth figure is a three-dimensional assembly diagram of the audio jack terminal and the audio plug shown in the first figure. The fifth figure is a perspective view of a conventional audio jack terminal. 5 M378522 Figure 6 is a perspective view of an audio jack connector using a conventional audio jack terminal. Figure 7 is a perspective view of the conventional audio jack terminal and audio plug shown in the fifth figure. [Main component symbol description] Audio socket terminal 1 Hold portion 10 Buckle 101 Weld portion 11 Opening 111 Spring arm 12 Longitudinal extension 121 Circumferential extension 122 Contact portion 13 Convex bag 131 Audio socket connector 2 Insulating body 20 Socket hole 21 terminal slot 22 holding slot 221 spring arm slot 222 card slot 223 audio plug 3