M356307 八、新型說明·· 【新型所屬之技術領域】 本新型涉及-種適用於電連接器之導電端子，尤其涉及一種壓接式導電 端子。 【先前技術】M356307 VIII. New Description·· 【New Technical Fields Included】 The present invention relates to a conductive terminal suitable for an electrical connector, and more particularly to a crimped conductive terminal. [Prior Art]
電連接器與電路板之連接方式主要有三種，分別爲壓接式連接 (Press-Fit)、通孔焊接（ThlOUghHdeSGlder)、以及表面烊接（smt, s_ce MountedTechnology)’其中採用壓接式端子之連接器以其低成本、高效率、 操作簡單、可置換性強而被廣泛應用於通訊、電腦等產業。 魚眼端子係最常見之麼接式端子，如美國專利仍⑽，圖所示，端 主體包括-顯部，顯勒職於中部之,_孔和健孔眼兩側之彈 臂構成。於尚未插接之狀態下，兩彈性臂相互背離外張，使其間之寬度大 端子主胜其餘刀之寬度，於插入電路板之通孔過程中，兩彈性臂受通孔> 壁之舰而相向彈性變形，從而確保端子可靠保持於電路板之通孔卜由; 魚眼端子製造加工簡單，且可適用於較寬範圍之通孔尺寸，所以其爲細 廣之塵接式端子，然而，該等端子·入電路板之通孔過財易劃傷侧 壁上之彻。翻咖S 4,㈣—峨撕，與魚眼㈤ =力其麵叙_纽呈c形，她於麵辭，賴射提供較取 保持力，且纖傷電路板通孔側壁上之導電層，崎端子不適用彻 通孔尺寸之爾。美嘱us伽加揭示了另—種子， 子之麵狀絲錢呈1—+—___； M356307 不過由於顯部之截_爲複雜，使得其製造加工也比較因難。 、、上述顯式端子具有，共同之雛，料__體式雜，也就是說， 、’〔端子之#接孙端子主體係—體加工而成之，如對金屑端子通過剖溝、 沖槽、纏、銑轉步驟來加工形成職。細，這種端子之壓接部於加 ^過程中需要先將端子主體央持、定位，然後進行加工，如此使得加工步驟 困難，而且端子之中心度也難以控制；此外，端子主體要被挖孔或部 刀掏二使得加工後之塵接部之截面積變小，從而結構強度下降，熱量傳導 令易於[接部處集巾，導電端子之阻抗也賴面積之減袖相應增大 進而影響電轉輪之狱性；另，軒靖_後缝力之微容易産生 斷裂和變形之現象’而膽插接雜t，難部和舒主麟他部分之連接 處谷易破裂或她。由於這些端子都採用了—體式設計，端子拔出後已難再 回k原狀從而侧讀麵式辭之電連接器無法再繼續使用。 有鐾於此，有必要對現有壓接式端子作進一步改進，以解決上述問題。 【新型内容】 .本新型之目的係提供—種壓接式導電端子，其製造加工簡單、結構強度 高、並可提供敏之電氣傳輸賴。 本新型之另—目的係提供一麵接式導電端子，其於插入電路板之通孔 後可提供較強之保持力，且麟出後可重複利用。 爲了實現上述目的’本新型之_種實施方式之壓接式導電端子包括端子 主體和彈性接觸件’其中端子主體具有縱長延伸之支樓部，彈性接觸件可分 離地认置於崎續部上並可沿麵變形，彈性獅件設有基本沿縱長方向 延伸之、且端部閉合之閉合槽。 M356307 作爲本新型之進一步改進，所述彈性接觸件之外表面爲平滑表面。There are three main ways to connect the electrical connector to the circuit board, which are press-fit (Press-Fit), through-hole soldering (ThlOUghHdeSGlder), and surface splicing (smt, s_ce MountedTechnology), which use crimp terminals. Connectors are widely used in communications, computer and other industries due to their low cost, high efficiency, simple operation and high replaceability. The fisheye terminal is the most common type of terminal, as shown in the U.S. Patent (10). As shown in the figure, the end body includes a - display portion, which is formed in the middle portion, and the arm of the hole and the eye of the eyelet constitutes an arm. In the state that has not been plugged in, the two elastic arms are away from each other, so that the width between the two ends is greater than the width of the remaining knives. In the process of inserting the through hole of the circuit board, the two elastic arms are subjected to the through hole> The opposite direction is elastically deformed to ensure that the terminal is reliably maintained in the through hole of the circuit board; the fisheye terminal is simple to manufacture and can be applied to a wide range of through hole sizes, so it is a fine dust-connected terminal, however The through holes of the terminals and the board are cut through the side walls of the financially easy to scratch. Turning the coffee S 4, (4) - tearing, and fisheye (five) = force its face _ _ new is c-shaped, she in the face, the razor provides a more retaining force, and the conductive layer on the sidewall of the through hole of the circuit board The Saki terminal does not apply to the through hole size. Meisui gamma reveals another seed, the face of the silk is 1 - + - ___; M356307 However, due to the complexity of the section, the manufacturing process is more difficult. The above-mentioned explicit terminals have the same common, the material __ body type, that is, the '[the terminal #接孙terminal main system - body processing, such as the gold chip terminal through the trench, rushing The groove, wrap, and milling steps are processed to form a job. Fine, the crimping part of the terminal needs to first hold, position and then process the terminal body during the adding process, so that the processing step is difficult, and the center degree of the terminal is also difficult to control; in addition, the terminal body is to be dug The hole or the knives make the cross-sectional area of the dust joint after processing smaller, so that the structural strength is reduced, and the heat conduction is easy [the nip at the joint, and the impedance of the conductive terminal is also increased by the reduction of the area. The electric wheel is in prison; in addition, Xuan Jing _ after the small stitching force is prone to breakage and deformation phenomenon 'and the biliary plug miscellaneous t, difficult part and Shu main Lin part of the connection between the valley is easy to break or her. Since these terminals are designed in a body-like manner, it is difficult to return to the original state after the terminal is pulled out, so that the electrical connector of the side-reading type can no longer be used. In view of this, it is necessary to further improve the existing crimp terminal to solve the above problems. [New content] The purpose of the present invention is to provide a crimping type conductive terminal which is simple in manufacturing and processing, high in structural strength, and can provide sensitive electrical transmission. Another object of the present invention is to provide a one-sided conductive terminal that provides a strong holding force after being inserted into a through hole of the circuit board, and can be reused after being taken out. In order to achieve the above object, the crimping type conductive terminal of the present invention includes a terminal body and an elastic contact member, wherein the terminal body has a longitudinally extending branch portion, and the elastic contact member is detachably recognized in the sequel It can be deformed along the surface, and the elastic lion member is provided with a closed groove extending substantially in the longitudinal direction and having the end closed. M356307 As a further improvement of the present invention, the outer surface of the elastic contact member is a smooth surface.
作爲本新型之進一步改進，彈性接觸件還包括基本沿縱長方向延伸之且 端部開口之開口槽D 作爲本新型之進一步改進，彈性接觸件爲截面基本呈c形之套筒。 作爲本新型之進一步改進，彈性接觸件爲截面基本呈圓形之套筒。 作爲本新型之進一步改進’彈性接觸件中部之截面積大於其縱向兩端之 截面積。 作爲本新型之進一步改進，所述閉合槽之數量至少包括兩個。 作爲本新型之進一步改進，所述支撐部呈圓柱體狀，所述彈性接觸件之 縱向兩端包覆於支#部之外周表面，而其巾部酸拱形地設置於支撐部之外 周表面上。 作爲本新型之進―步改進，所述端子主魏包括主體部，所述支撐部: 截面積小於所述主體部之截面積。 作爲本新型之進-步改進，所述端子主體還包括錐形端部。 本«之功效增益爲：由於彈性接觸件上閉合槽之設置可提供導電端: 於電路扳之通助射㈣之雜力，㈣確雜雜雜電職間可約 機械和電性連接;且雜錢壯體部之外麵解滑表面，所轉_ 於遷入通孔之過財彈性娜牛不會劃傷通孔内壁上之導電層。此外，利 接觸件和通簡賴具雜料轉，而軒主體和雜接觸件组 合後之截爾相比習知之輯端子壓接部之截面積要爾，使得端子和 電路扳間之接雜抗夠低，從树保謂之f氣傳輸性能，·再者，端子沿縱 長方向上讀__如’使其_錄本―致，*會於製造和使 M356307 用過程中由於某處過於薄弱而容易出現斷裂或折損之現象，同時，由於截面 積分佈均勻，使得缝赶不會過於集中並且能朗勻地;肖散。糾需要注 意的是，由於彈性接觸件和端子主體係可分離設計，如此，當導電端子從電As a further improvement of the present invention, the resilient contact member further includes an open slot D extending substantially in the longitudinal direction and having an open end, the resilient contact member being a sleeve having a substantially c-shaped cross section. As a further improvement of the present invention, the elastic contact member is a sleeve having a substantially circular cross section. As a further improvement of the present invention, the cross-sectional area of the middle portion of the elastic contact member is larger than the cross-sectional area of the longitudinal ends thereof. As a further improvement of the present invention, the number of the closed grooves includes at least two. As a further improvement of the present invention, the support portion has a cylindrical shape, and the longitudinal ends of the elastic contact member are coated on the outer peripheral surface of the branch portion, and the towel portion is acidly arched on the outer peripheral surface of the support portion. on. As a further improvement of the present invention, the terminal main body includes a main body portion, and the support portion has a cross-sectional area smaller than a cross-sectional area of the main body portion. As a further improvement of the present invention, the terminal body further includes a tapered end. The efficiency gain of this «is: the conductive end can be provided due to the setting of the closed groove on the elastic contact piece: the hybrid force of the circuit board (four), (4) the mechanical and electrical connection of the miscellaneous electric power room; The outside of the body of the miscellaneous body is unsmoothed on the surface of the body. The _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ In addition, the contact parts and the simple parts are turned, and the cross-sectional area of the terminal crimping part is better than that of the conventional terminal and the miscellaneous contact parts, so that the terminal and the circuit board are connected. The resistance is low enough, from the tree protection, the transmission performance of the gas, and further, the terminal reads in the longitudinal direction __such as 'make it _ record this, * will be used in manufacturing and making M356307 somewhere in the process due to somewhere It is too weak and prone to breakage or breakage. At the same time, due to the uniform distribution of the cross-sectional area, the seam will not be too concentrated and can be evenly distributed; It should be noted that since the elastic contact piece and the terminal main system can be separated, so when the conductive terminal is electrically
路板之通孔中拔出後，彈性接觸件可以很容易恢復原狀，從而導電端子以I 整個電連接器都可以重複使用，即使彈性接觸件變形後無法回復，只需要更 換新彈性接觸件就可以重複使用電連接器。另，導電端子於加工過程中其中 心度不會受其他加工所影響，從而可提高製造上之良品率和制上之便利 性0 【實施方式】 第-圖和第二圖揭示了本新型壓接式導電端子卿之第一實施方式。其 中導電端子100包括一端子主體1〇和可分離地安裝到端子主體⑴上之彈性 接觸件20。 如第一圖所示，於本實施方式中，端子主體1G呈縱長延伸之圓柱體狀， 其可以係由—金屬合金板材衝壓趣，如銅合金，以確保其具有良好之導電 特性’然後於柱體表面錢以金屬鑛層，如鎳鍵表層和錫縣層。當然，本領 域技術人貝可輕易想_是端子主體也可以具有其他之截面形狀，如矩形或 三角形等。端子主體1G包括主體部1卜支撐部12和導5|部13。事實上， 支撐4 12係端子主體⑴上之—段經環切後形成之—較細圓柱體，也就是 說，其截面直徑小於主體部11之截面直徑。導引部13形成於端子主體1〇 之縱長端部，其大致呈錐形，麟供彈性接觸件組人或導料電端子插入電 路板之通孔中，後文將作詳細描述。 1 本實施方式中，彈性接觸件20爲截面大致呈c形之縱長套筒，其可以 8 M356307 是由具有較轉轉性之麵板材衝壓喊，使射以沿徑崎性變形，如 彈性張開或彈性壓縮。彈性接觸件20可沿第—圖中所示之箭頭方向組裝到 端子主體之支撐部12上，如c形套筒通過其縱長延伸之開口槽^产端 子主㈣機卡接細部之賴上，或c形編過端子主㈣ 導引部丨3之導胀《方向套制支料u之外I本實施方式t，彈性 接觸件20包括縱長之主體部21、形成於主體㈣兩端之端部221、222、 開嫩體部2丨上基本沿縱長方向延伸且兩合之若干喝24、以及 沿縱長方向，’可以係完全平行於端子主體之縱長延伸轴線，也可以係相較端 子主體之縱長延伸軸線傾斜一較小之角度。其令，主體部21之截面靜大 於兩端軸、取截面直徑，且主體部2丨之外表面爲恤形表面。 配合細第二_，t __件2G _财主㈣上後，位於 兩端之端細.緊密包覆於支撐部u之外周表面，並分別靠近支撐部 之兩端部121、122，而主體部21 _共形地設於支撐部12之外周表面 上。易於理解的是’本實施謝，若干閉合槽24係輔主體㈣可沿 徑向變形，並且，閉合槽24之數景可抽械也 數里了根據實際需要而增減以提供與電路板 上。 之通孔孔壁之相應鋪力’如閉合槽24之數量越多則可以提供越強之仔持 力，於本實施方式巾，主體壯設置有三_綠％。材财式中，開 口槽24主要麟使彈性接觸件如能_向擴張_利安裝到端子主㈣ 配合參照第四圖所示，端子主體1〇强 通過其導引部13之剌可順利插么 電路板50之通孔51中。本領域技術人g 員所热知的是，通孔51内壁上鍍有 M356307 導電層，以使插入之導電端子幽與電路板5〇之電路（未圖示）電性連接； 另’通孔51之内鮮於镇大於端子主㈣之主體部u之直徑，但小於 彈性接觸件於安裝到端子主體1〇上後所具有之最大外徑，通過這種設 置，彈性接觸件2〇之主體部21受通㈣孔壁之壓迫（如朝向彈性接觸件 之箭頭所示）·而徑_縮變形，，彈性接觸件2q麵_形後產生捏 向擴張力（如朝向電路板之箭頭所示）使得端子可保持於通孔％内。 如前所述，由於彈性接觸件2〇主體部21之外表面是平滑表面，所以導 •電端子100於壓入通孔51之過程中彈性接觸件2〇不會劃傷通孔Μ内壁上 之導電層，且彈性接觸件2〇上閉合槽24之設置可提供導電端子於通孔内具 有較強之保持力，從而雜電連接器（未圖示）和電路板間可靠地機械和電 性連接。此外，彈性接觸件20和通孔51内壁間具有較大之接觸傳導面積， 而端子主體Κ)和彈性接觸件2〇組合後之截面積相比現有之壓接式端子壓接 部之截面積要大的多，使得端子和電路板間之接觸阻抗夠低，從而確保可靠 之電氣傳輸性能；再者，端子沿縱長方向上之截面積相對較爲均勾，使其整 籲體強度基本一致，不會於製造和使用過程中由於某處過於薄弱而容易出現斷 裂或折損之現象’同時，由於截面積分佈均勻，使得熱量産生不會過於集中 並且能夠均自地舰。料f躲意的是，祕雜接猶2G和端子主體 10爲可分離之設計，如此，當導電端子100從電路板5〇之通孔S1中拔出 後’彈性接觸件20可以很容易恢復原狀，從而導電端子以及整個電連接器 都可以重複個’較雜接鱗2G _後無法回復，只f要更換彈性接 觸件就可以重複使用電連接器。還有，導電端子於加工過程中其中心度不會 受其他加工所影響’從而可提南製造上之良品率和使用上之便利性。 M356307 帛—®揭不之係本新鶴接式導電端子之第二實施方式，其中端子本體 ίο與第實細方式中完全相同，申請人不再予以贊述。彈性接觸件％與第 一實施方式中之彈性接觸件20基本相同，同樣包括主體部3卜端部321、 322、開口槽33、和閉合槽34，不同的是，開口槽33較第一實施方式中彈 性接觸件20之開口槽23寬度要小得多，也就是說，彈性接觸件30爲截面 大致王圓开/之套筒，通過這種結構，相比第二實施方式，使得彈性接觸件與 $路板通孔内i之接觸傳導面積更大，彈性接觸件之主體部上可設置之閉合 >槽之數量也更多，彈性接觸件和端子主體組合後之有效截面積也增加，從而 提供導電端子更佳之機械和電氣性能。 田」以上所列舉之均爲本新型之較佳實施方式，本領域之技術人員也 可對上述貫施方式之結構進行變換，同樣來實現本新型。例如，端子主體之 支擇4也可以係由凸伸出主體部之外周表面並於縱向上間隔設置之一對凸 郷成；另’導引部除了錐形外也可以係由多面之導角構成。綜上所述，對 於本領域之普通技術人M而言’於本麵之教導下所作之針對本新型之等效 .變彳b ’仍應&含於本麵巾料機騎錄之範圍中。 【圖式簡單說明】 第-圖爲本新麵接式導電端子第一實施方式之組裝示意圖，其中彈性 接觸件可沿兩個方向安装到端子主體上； 第二圖爲第-®所示之導電端子之立體組合圖； 第三圖爲本新麵接式導電端子第二實施方式之立體組合圖； 第四圖爲第二圖中之祕式導電端子插入電路板通孔狀剖視示意圖。 【主要元件符號說明】 11After the through hole of the road board is pulled out, the elastic contact piece can be easily restored to the original state, so that the conductive terminal can be repeatedly used for the entire electrical connector, even if the elastic contact piece cannot be recovered after being deformed, only the new elastic contact piece needs to be replaced. The electrical connector can be reused. In addition, the centering degree of the conductive terminal during processing is not affected by other processing, thereby improving the manufacturing yield and the convenience of manufacturing. [Embodiment] The first and second figures reveal the new pressure. The first embodiment of the connected conductive terminal. The conductive terminal 100 includes a terminal body 1A and an elastic contact member 20 detachably mounted to the terminal body (1). As shown in the first figure, in the present embodiment, the terminal body 1G has a cylindrical shape extending longitudinally, which can be stamped by a metal alloy plate, such as a copper alloy, to ensure that it has good electrical conductivity characteristics. On the surface of the cylinder, the metal ore layer, such as the nickel bond surface layer and the tin county layer. Of course, the person skilled in the art can easily think that the terminal body can also have other cross-sectional shapes, such as a rectangle or a triangle. The terminal body 1G includes a main body portion 1 and a guide portion 12 and a guide portion 5 portion 13 . In fact, the thinner cylinder, which is formed by the circumcision, is supported on the body of the terminal body of the 4 12 series (1), that is, the cross-sectional diameter thereof is smaller than the cross-sectional diameter of the main body portion 11. The guiding portion 13 is formed at the longitudinal end portion of the terminal body 1'''''''''''''''''''''''' In the present embodiment, the elastic contact member 20 is a longitudinally long sleeve having a substantially c-shaped cross section, and the 8 M356307 can be punched and shoved by a surface plate having a relatively rotating property, so that the shot is deformed along the path, such as elasticity. Open or elastic compression. The elastic contact member 20 can be assembled to the support portion 12 of the terminal body in the direction of the arrow shown in the first figure, for example, the c-shaped sleeve passes through the opening slot of the longitudinally extending end thereof to produce the terminal main (4) machine snap-on detail. , or c-shaped through the terminal main (four) guide portion 之 3 of the expansion of the "direction of the sleeve u outside the present embodiment t, the elastic contact member 20 includes a longitudinal body portion 21, formed at the ends of the body (four) The end portions 221, 222 and the open body portion 2 are substantially extended in the longitudinal direction and have a plurality of drinks 24, and in the longitudinal direction, 'may be completely parallel to the longitudinal extension axis of the terminal body, It may be inclined at a smaller angle than the longitudinally extending axis of the terminal body. Therefore, the cross section of the main body portion 21 is larger than the axis of both ends, and the cross-sectional diameter is taken, and the outer surface of the main body portion 2 is a shirt-shaped surface. After the second _, t __ 2G _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The portion 21_ is conformally provided on the outer peripheral surface of the support portion 12. It is easy to understand that 'this implementation, a number of closed slots 24 are auxiliary bodies (four) can be deformed in the radial direction, and the number of closed slots 24 can be pumped up and down to provide and the circuit board according to actual needs. . The corresponding spreading force of the through-hole wall's, as the number of the closed grooves 24, can provide a stronger holding force. In the present embodiment, the main body is provided with three_green%. In the material type, the main groove of the open groove 24 allows the elastic contact member to be attached to the terminal main body (four). Referring to the fourth figure, the terminal body 1 is reluctantly inserted through the guide portion 13 thereof. In the through hole 51 of the circuit board 50. It is well known to those skilled in the art that the inner wall of the through hole 51 is plated with a conductive layer M356307, so that the inserted conductive terminal is electrically connected to the circuit (not shown) of the circuit board 5 ;; The fresh inner ring of 51 is larger than the diameter of the main body portion u of the terminal main body (four), but smaller than the maximum outer diameter of the elastic contact piece after being mounted on the terminal main body 1 ,. With this arrangement, the main body portion of the elastic contact piece 2〇 21 is pressed (four) the wall of the hole (as indicated by the arrow toward the elastic contact) · and the diameter _ contraction, the elastic contact 2q surface _ shape after the pinch expansion force (as indicated by the arrow towards the board) The terminal can be kept within the through hole %. As described above, since the outer surface of the elastic contact member 2 is a smooth surface, the elastic contact member 2 does not scratch the inner wall of the through hole during the press-fitting of the through hole 51. The conductive layer, and the elastic contact member 2 is disposed on the closed groove 24 to provide a strong holding force of the conductive terminal in the through hole, so that the electrical connector (not shown) and the circuit board are reliably mechanically and electrically Sexual connection. In addition, the elastic contact member 20 and the inner wall of the through hole 51 have a large contact conduction area, and the cross-sectional area of the terminal body Κ) and the elastic contact member 2〇 is smaller than that of the conventional crimp terminal crimping portion. To be much larger, the contact resistance between the terminal and the circuit board is low enough to ensure reliable electrical transmission performance; in addition, the cross-sectional area of the terminal along the longitudinal direction is relatively uniform, so that the overall strength of the body is basically Consistently, it will not be easy to break or break due to being too weak in the process of manufacturing and use. At the same time, due to the uniform distribution of the cross-sectional area, the heat generation will not be too concentrated and can be self-propelled. The material f is hidden from the fact that the secret terminal 2G and the terminal body 10 are separable, so that when the conductive terminal 100 is pulled out from the through hole S1 of the circuit board 5, the elastic contact member 20 can be easily recovered. The original shape, so that the conductive terminals and the entire electrical connector can be repeated 'more than the matching scale 2G _ can not recover, only f to replace the elastic contact can be used to re-use the electrical connector. Also, the center of the conductive terminal is not affected by other processing during processing, which makes it possible to improve the yield and ease of use in manufacturing. M356307 帛—® is not the second embodiment of the new crane-type conductive terminal, wherein the terminal body ίο is exactly the same as the first embodiment, and the applicant will not cite it. The elastic contact member % is substantially the same as the elastic contact member 20 in the first embodiment, and also includes the main body portion 3 end portions 321, 322, the opening groove 33, and the closing groove 34, except that the opening groove 33 is implemented as compared with the first embodiment. In this manner, the width of the opening groove 23 of the elastic contact member 20 is much smaller, that is, the elastic contact member 30 is a sleeve having a substantially rounded cross section, by which the elastic contact is made compared to the second embodiment. The contact area between the piece and the through hole of the road plate is larger, and the number of the groove which can be set on the main body portion of the elastic contact piece is more, and the effective sectional area of the elastic contact piece and the terminal body is also increased. To provide better mechanical and electrical performance of the conductive terminals. The above is a preferred embodiment of the present invention, and those skilled in the art can also change the structure of the above-described embodiments to achieve the same. For example, the selection of the terminal body 4 may also be performed by projecting the outer peripheral surface of the main body portion and arranging one of the pair of protrusions in the longitudinal direction; the other 'guide portion may be a multi-faceted guide angle in addition to the tapered shape. Composition. In summary, for those of ordinary skill in the art, the equivalent of the present invention, which is based on the teachings of the present invention, should be <included in the scope of the face toweling machine. in. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an assembled view of a first embodiment of a new surface-connected conductive terminal, wherein the elastic contact member can be mounted to the terminal body in two directions; the second figure is shown in the first-- The three-dimensional combination diagram of the conductive terminal; the third figure is a three-dimensional combination diagram of the second embodiment of the conductive terminal; the fourth figure is a schematic view of the through-hole of the circuit board inserted into the circuit board in the second figure. [Main component symbol description] 11