201015793 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種電連接器端子以及將錫球定位在該電連接器端子上的方 法。 【先前技術】 一種習知的電連接器端子，該端子與電路板間以錫球連接。該種端子一 般由銅料衝壓成型，其包括固持於電連接器絕緣本體的固持部、與其他電子 几件相接觸以實現電子元件與電路板電性連接的接觸部及用以接合錫球的焊 接部。所述焊接部的底面為接合錫球的植球平面。然後，端子的表面被電鍵 一層含鎳的保護層，以防止銅料被氧化。接著，端子被組裝入絕緣本體中後， 再將錫球黏著在植球平面上。當電連接器安裝於電路板，端子植球平面需與 電路板的電接點接合時，須在高溫下作業，由於鎳鑛層比較緻密，此時錫球 在熱熔過程中容易在植球平面和電接點間產生飄移現象，一旦產生飄移現 象，錫球與電接點不能完好定位而造成空焊現象。 基於前述缺陷，確有必要對先前之電連接器及錫球定位方法進行改 [發明内容】 本㈣解紅技躺麟：提供―種錢脑軒及稿球定位立 上的方法，其可增加電連接器端子接合錫球的牢靠度。 八 鮮本^所要解決之技術問題係、通過以下技術方案實現的：一種電連接器 ❹衝壓彎折成型，該電連接魏子包括嗎部和由固持部延伸出 錄=焊接部的底部凹設有树位錫球的槽或孔，所述 增加牢接㈣底部凹設有槽或孔以 的牢靠度，嫩^=腕L輸11端子接合錫球 位於術問題亦係通過以下技術方案實現：—種將錫球定 固持部、接觸部和焊接部的電連接哭端子；二、^旬枓衝壓騎成型具有 扎；三、在電連接哭在丈干接部的底部衝壓出槽或 接器端子組鐘一層含鎳的保護層’·四、將成型後的電連 乂 ;甩連接感緣本體的收各槽中；五、將錫球黏著在焊 5 201015793 接部的槽或孔處；六、經加熱使錫球融熔將電連接器端子接合在一電路板的 接合處。 相較於習知技術，本發明採用該方法使焊接部有足夠的粗糙度將錫球定 位，從而增加電連接器端子接合錫球的牢靠度，避免空焊現象的發生。 以下結合圖式及實施方式對本發明進一步說明。 【實施方式】 ❹ ❹ 請參第一圖和第二圖，本發明電連接器端子丨由鋼料彎折成型，且收容 於電連接器的絕緣本體（未圖示）内，其包括固持於絕緣本體的收容槽内的 固持部10、由固持部10彎折延伸出的彈性接觸臂u及烊接部12。所述固持 部10包括豎直延伸的基部10卜由基部101的一端向兩側水平延伸的第一卡 固部102和由基部101的巾間位置向一侧水平延伸出的第二卡固部⑽所 述第-、第二卡畴102、1〇3上設有用以與收容槽的内壁相干涉配合的倒 刺。所述彈性接觸臂11由第一卡固部1〇2彎折延伸出，該彈性接觸臂n的 末端設有與其他電子元件（未圖示）相接觸配合的接觸部13。焊接部12呈 片狀並由基部1G1的另-端水平f折延伸，其底部形成植球面i2i Y該植球 面121凹設有十字槽122，所述十字槽及整個電連接器端子j的表面鑛有錄 鍍層以防止銅料被氧化。所述十字槽122處接合一錫球2。電連接器組裝於 -電路板（未圖示）時，電連接器端子！祕球2對應焊接於電路板的電接 點上’此時錫球2位於焊接部12和電接點間。 _本發明的方法流程如第三圖所示，所述電連接器端子！（參第一圖和 二圖所示）由銅料衝壓騎成型形成_部1G、彈性接觸臂u及焊接部… 再在焊接部12的植球面121衝壓出十字槽122 ;然後在電連接器端子i的表 面電鍛-層含錄保護層，以防止由鋼料形成的電連接器端子^ 將電連接器端子1組裝到設置於電連接器絕緣本體的收容槽内， ^指向收容槽的-開口；隨後，用植球機在電連接器端子植球面、⑵的十 予槽122處黏者錫球2 ;之後便可_高溫將錫球祕使 植球面121與電路板的電接點接合。 贼㈣于i的 =述電連接ϋ端子i的植麵121凹設有十字槽122使植箱⑵ -不連_面，並覆蓋於驢層，以可增加植球面121的^^以 接器端子與_接合料靠度，從而減少電連端子與魏板^接,= 201015793 合時錫球的飄移，保證電連接器端子定位在電接點上且與電接點良好接觸。 所述電連接器端子的鎳層係在設置十字槽後，是以並不會破壞鎳層以防電連 接器端子被氧化，又，電連接器端子組裝入絕緣本體後可不必立刻黏著錫球 (一般在兩三天内均可），以方便制程的排配。 請參第四圖，為本發明的第二實施例方式，所述電連接器端子丨的植球 ，121沒有凹設十字槽122而係在焊接部12的植球面121上開設有貫穿焊接 部12的圓錐形孔123。所述圓錐形孔為倒圓錐形孔，其上側的開口大於下側 的開口，且圓錐形孔123的内壁可部分貼合錫球2的表面，使錫球2黏著在 錐形孔123内。所述圓錐形孔123亦可增加植球面121的粗糙度，從而可增 加電連接器端子1與錫球2接合的牢靠度。當然，所述電連接器端子焊接部 的槽或錐形孔可根據使用者的需要而改變，例如第二圖所示的十字槽亦或 係星形槽及其它形狀的槽；例如細圖所示關錐形孔，亦或係多邊形錐形 孔及其它微的孔，均可增加植球面的純^，從輯加電連接 球接合的牢靠度。 、 综上前述’本發明確已符合發明專利之要件，爱依法提出申請 ^上所储鶴本發明之触實施对，本發明之翻並抑战實施方式 f凡熟習本案技#之人士援依本發明之精神所作之等效料或變化， 皆應涵盍於以下申請專利範圍内。 兄變化 【圖式簡單說明】201015793 IX. Description of the Invention: [Technical Field] The present invention relates to an electrical connector terminal and a method of positioning a solder ball on the terminal of the electrical connector. [Prior Art] A conventional electrical connector terminal in which a solder ball is connected to a circuit board. The terminal is generally formed by stamping of a copper material, and includes a holding portion held by the insulating body of the electrical connector, a contact portion that is in contact with other electronic components to electrically connect the electronic component and the circuit board, and a contact portion for bonding the solder ball. Welding department. The bottom surface of the welded portion is a ball placement plane that engages the solder ball. Then, the surface of the terminal is electrically connected to a protective layer containing nickel to prevent the copper material from being oxidized. Then, after the terminals are assembled into the insulating body, the solder balls are adhered to the plane of the ball. When the electrical connector is mounted on the circuit board and the terminal ball-planting plane needs to be engaged with the electrical contact of the circuit board, it must be operated at a high temperature. Since the nickel ore layer is relatively dense, the solder ball is easy to be implanted in the hot melt process. There is a drift phenomenon between the plane and the electrical contact. Once the drift phenomenon occurs, the solder ball and the electrical contact cannot be properly positioned to cause the air soldering phenomenon. Based on the aforementioned shortcomings, it is necessary to change the previous electrical connector and solder ball positioning method. [Summary of the invention] This (4) solution red lie lies: provides a method of “cultivating money brain and positioning the ball”, which can be increased The electrical connector terminals engage the solder balls in a secure manner. The technical problem to be solved by the eight fresh products is achieved by the following technical solutions: an electrical connector ❹ stamping and bending forming, the electrical connection of the Weizi and the bottom portion of the welding portion extending from the holding portion There is a slot or hole in the tree solder ball. The increase is firmly (4). The bottom is concave with the groove or the hole. The tenderness is the following technical solution: - a kind of electric connection crying terminal for holding the solder ball, the contact portion and the soldering portion; second, the stamping and riding forming of the solder ball has a tie; three, in the electrical connection, crying at the bottom of the stem joint to punch out the slot or the connector A protective layer containing nickel on the terminal group clock'·4. The electrical connection after molding; 甩 connected to the receiving groove of the main body; 5. The solder ball is adhered to the groove or hole of the joint of 201015793; 6. Heating the solder ball to fuse the electrical connector terminals to the junction of a circuit board. Compared with the prior art, the present invention adopts the method to make the soldering portion have sufficient roughness to position the solder ball, thereby increasing the reliability of the solder joint of the electrical connector terminal and avoiding the occurrence of the air soldering phenomenon. The invention will now be further described in conjunction with the drawings and embodiments. [Embodiment] ❹ ❹ Referring to the first figure and the second figure, the terminal 丨 of the electrical connector of the present invention is formed by bending a steel material and is housed in an insulating body (not shown) of the electrical connector, which is supported by The holding portion 10 in the receiving groove of the insulative housing, the elastic contact arm u and the connecting portion 12 which are bent and extended by the holding portion 10 . The holding portion 10 includes a vertically extending base portion 10, a first fastening portion 102 extending horizontally from one end of the base portion 101 to the two sides, and a second fastening portion horizontally extending from one side of the base portion 101 to one side. (10) The first and second card domains 102 and 1 are provided with barbs for interference fit with the inner wall of the housing groove. The elastic contact arm 11 is bent and extended by the first fastening portion 1〇2, and the end of the elastic contact arm n is provided with a contact portion 13 which is in contact with other electronic components (not shown). The welded portion 12 is in the form of a sheet and extends from the other end of the base 1G1 to form a spherical surface i2i Y. The spherical surface 121 is recessed with a cross recess 122, and the surface of the cross recess and the entire electrical connector terminal j The mine has a plating layer to prevent the copper material from being oxidized. A solder ball 2 is joined to the cross recess 122. When the electrical connector is assembled on a circuit board (not shown), the electrical connector terminals! The secret ball 2 corresponds to the electrical contact soldered to the circuit board. At this time, the solder ball 2 is located between the soldering portion 12 and the electrical contact. The method flow of the present invention is shown in the third figure, the electrical connector terminal! (refer to the first and second figures) formed by copper stamping and forming _ part 1G, elastic contact arm u and welding part... Then the cross groove 122 is punched in the ball-facing surface 121 of the welding part 12; then in the electrical connector The surface of the terminal i is electrically forged-layered with a protective layer to prevent the electrical connector terminal formed by the steel material from assembling the electrical connector terminal 1 into the receiving groove provided in the insulating body of the electrical connector, ^ pointing to the receiving groove - opening; subsequently, the ball ball is glued to the ball joint surface of the electrical connector terminal, and the solder ball 2 of the (2) is placed at the slot 12; then the solder ball can be used to electrically connect the ball surface 121 to the circuit board. Engage. The thief (4) has a cross recess 122 in the planting surface 121 of the terminal ii of the electrical connection 使, so that the planting box (2) is not connected to the 面 layer, and covers the 驴 layer, so as to increase the connector of the spherical surface 121 The terminal and the _ joint material depend on each other, so as to reduce the connection between the electrical connection terminal and the Wei board, = 201015793, the drift of the solder ball, ensuring that the electrical connector terminal is positioned on the electrical contact and in good contact with the electrical contact. The nickel layer of the electrical connector terminal is disposed after the cross recess is provided so as not to damage the nickel layer to prevent the electrical connector terminal from being oxidized, and the electrical connector terminal assembly is not required to be immediately adhered to the solder ball after being assembled into the insulating body. (Generally available in two or three days) to facilitate the scheduling of the process. Referring to FIG. 4 , in a second embodiment of the present invention, the ball, 121 of the connector 丨 of the electrical connector is not recessed with a cross recess 122 and is formed on the ball-facing surface 121 of the soldering portion 12 through the soldering portion. 12 conical holes 123. The conical hole is an inverted conical hole, and the opening on the upper side is larger than the opening on the lower side, and the inner wall of the conical hole 123 can partially conform to the surface of the solder ball 2, so that the solder ball 2 is adhered in the conical hole 123. The conical hole 123 also increases the roughness of the ball-facing surface 121, thereby increasing the reliability of the engagement of the electrical connector terminal 1 with the solder ball 2. Of course, the slot or the tapered hole of the soldering portion of the electrical connector terminal may be changed according to the needs of the user, for example, the cross recess shown in the second figure or the groove of the star shape and other shapes; for example, a fine figure The tapered hole, or the polygonal tapered hole and other micro-holes, can increase the purity of the spherical surface and the reliability of the ball joint. In summary, the above-mentioned invention has indeed met the requirements of the invention patent, and loves to file an application according to law. The implementation of the invention is based on the implementation of the invention. The implementation of the present invention is a method of practicing the invention. The equivalents or changes made by the spirit of the invention are intended to be within the scope of the following claims. Brother change [schematic description]
第一圖係本發明電連接器端子與錫球的立體圖； 第二圖係第一圖另一角度的立體圖； 第三圖係本發明的製造流程圖； 第四圖係本發明另-實施例電連接器端 【主要元件符號說明】 園 電連接器端子 1 基部 101 第二卡固部 103 焊接部 12 十字槽 122 接觸部 13 固持部 10 第一-^固部 102 彈性接觸臂 11 植球面 121 圓錐型孔 123 錫球 2 7The first drawing is a perspective view of the terminal of the electrical connector of the present invention and the solder ball; the second drawing is a perspective view of the first angle of the first drawing; the third drawing is the manufacturing flow chart of the present invention; and the fourth drawing is another embodiment of the present invention. Electrical connector end [Main component symbol description] Ceramic connector terminal 1 Base 101 Second fastening portion 103 Weld portion 12 Cross recess 122 Contact portion 13 Holding portion 10 First-solid portion 102 Elastic contact arm 11 Ball-forming surface 121 Conical hole 123 Tin ball 2 7