201214844 六、發明說明： 【發明所屬之技術領域】 本發明是關於，主要使用爲行動電話及其他小型電子 機器的電池的連接器，也稱爲探針銷、彈簧探針等的彈簧 連接器。 【先前技術】 在這種習知的彈簧連接器，在由圓筒管所構成的圓筒 狀外銷之中，可自由降退地嵌合著：藉由線圈彈簧所彈壓 的實心圓棒所構成的圓柱狀內銷，使該圓柱狀內銷的前端 部從圓筒狀外銷突出，將該突出端部壓接於電池的端子而 電連接。 這種彈簧連接器，爲了在金屬的圓柱狀內銷與圓筒狀 外銷，形成··朝殼體的卡止突起部、端子部、圓筒狀外銷 與圓柱內銷的相互的卡合部等，必須藉由車床或衝壓機進 行：切斷加工、拉深加工等麻煩的加工，會有成本變高的 問題。 除了藉由金屬的實心圓棒或圓筒管的切斷加工、拉深 加工等所形成的構造之外，已知有：將如第7圖及第8圖 所示的一枚導電性金屬板進行切割，進行彎折加工而將外 銷與內銷形成爲方筒狀的方式（專利文獻1)。 在該圖中，習知的彈簧連接器10，是由：方筒狀外 銷1 1、方筒狀內銷1 2、與線圈彈簧1 3所構成。 上述方筒狀外銷11，將一枚導電性金屬板切割成： -5- 201214844 背板部1 1 a、側板部1 1 b、前板部1 1 c、缺口 1 1 d、卡止片 部1 1 e、底板部1 1 f、及端子部〗i g，將折線的部位進行彎 折加工而形成爲方筒狀。該方筒狀外銷11的上半部分的 前板部11c，藉由將1/2寬度的構造從左右對接，缺口 lid部分構成導引溝19。將左右的卡止片部lie朝外側彎 折而構成卡止片23，將左右的底板部Ilf彎折而構成底 板’從該底板將端子部llg朝下彎折而構成端子片20。 上述方筒狀內銷1 2，將一枚導電性金屬板切割成： 背板部12a、側板部12b、前板部12c、導引片部12d、接 觸片部1 2e，將折線的部位進行彎折加工而鬆動嵌合於上 述方筒狀外銷11內而形成爲方筒狀。該方筒狀內銷12的 下方部的導引片部1 2d，藉由從左右對接成朝外側突出， 而構成：與上述導引溝19卡合且進退的導引突片21。藉 由將上端的接觸片部1 2e彎折成弧狀而卡止於前板部1 2c 來構成接觸部22。 在如以上構成的方筒狀外銷11與方筒狀內銷12之中 收容有線圈彈簧1 3，如第7圖所示，在殼體1 4與電路基 板1 5之間，以上座部1 6與下座部1 7垂直地保持。這樣 —來，將方筒狀外銷1 1的端子片2 0電連接於電路基板 15，將方筒狀外銷11的卡止片23被下座部17與上座部 16夾著而固定。方筒狀內銷12，將其導引突片21以方筒 狀外銷1 I的導引溝1 9導引，藉由線圈彈簧1 3讓上端部 的接觸部22從方筒狀外銷1 1突出。 在這種構造，當將電池組件1 8等的其他機器的端子 -6- 201214844 部，接觸於方筒狀內銷1 2的接觸部22而壓入時’克服線 圈彈簧13而將方筒狀內銷12壓下’經過方筒狀內銷12 、方筒狀外銷11、端子片20而與電路基板15電連接。 [先前技術文獻] [專利文獻] [專利文獻1 ] W02005/112200 號公報 【發明內容】 [發明欲解決的課題] 在以往的彈簧連接器1 〇，具有如以下的問題。 (1)方筒狀外銷11與方筒狀內銷12 ’具有··由於是一 枚導電性金屬板的衝裁與彎折加工，所以加工簡單的效果 :而且由於在方筒狀內銷12的內部收容線圈彈簧13’所 以全體高度較低的效果。 可是，由於在方筒狀內銷1 2的內部收容線圈彈簧1 3 ，將該方筒狀內銷12可自由進退地嵌合於方筒狀外銷11 ，所以必須讓方筒狀內銷1 2的內部的縱橫尺寸大於線圈 彈簧13的直徑，且由於方筒狀外銷11’鬆動嵌合著方筒 狀內銷1 2，所以必須讓方筒狀外銷1 1的內部的縱橫尺寸 大於方筒狀內銷12的縱橫尺寸，則彈簧連接器10全體的 形狀的小型化會有其限度。 (2 )方筒狀外銷1 1與方筒狀內銷1 2 ’由於分別衝裁、 201214844 彎曲加工成：背板部、側板部、前板 所以仍然加工性會有問題。 本發明的目的，是要讓接點從殼 圈彈簧的直徑，且讓線圈彈簧不會從 [用以解決課題的手段] 本發明的請求項1記載的彈簧連 由進退地設置有：以線圈彈簧彈壓的 置有：與該接點電連接的電極，上述 金屬板的彎折來加工，在該接點的與 板部的背面，一體地設置有：上述線 卡止突部。 本發明的請求項2記載的彈簧連 止脫落用卡止突部，其長度作成：至 的水平的彈簧端部卡合的長度。 本發明的請求項3記載的彈簧連 長導電性金屬板的U字型的彎折所 其他機器電接觸的頂板部的背面，藉 體地設置有線圈彈簧的防止脫落用卡 本發明的請求項4記載的彈簧連 長導電性金屬板的U字型的彎折所 其他機器電接觸的頂板部的寬度小於 該頂板部的背面，藉由彎折加工而一 的防止脫落用卡止突部。 部及其他複雜形狀’ 體突出的部分小於線 接點脫離彈出。 接器，在殼體，可自 接點，並且固定地設 接點，是藉由導電性 其他機器電接觸的頂 圏彈簧的防止脫落用 接器，線圈彈簧的防 少與線圈彈簧的端部 接器，接點，藉由細 加工，在該接點的與 由衝壓拉深加工而一 止突部。 接器，接點，藉由細 加工’在該接點的與 線圈彈簧的內徑，在 體地設置有線圈彈簧 201214844 本發明的請求項5記載的彈簧連接器，在接 部的與其他機器電接觸的面，一體地設置有突出 [發明效果] 藉由請求項1記載的發明，在殼體，可自由 置有：以線圈彈簧彈壓的接點，並且固定地設置 接點電連接的電極；上述接點，是藉由導電性金 折來加工，在該接點的與其他機器電接觸的頂板 ’一體地設置有：上述線圈彈簧的防止脫落用卡 所以使接點的寬度小於線圏彈簧的直徑，即使線 一部分從接點露出，而在接點的進退動作下，線 不會脫落。藉由使接點的寬度小於線圈彈簧的直 使彈簧連接器的形狀更小型化。 藉由請求項2記載的發明，線圈彈簧的防止 止突部’作成：至少與線圈彈簧的端部的水平的 卡合的長度，所以即使接點的進退動作反覆進行 讓線圈彈簧脫落彈出。 藉由請求項3記載的發明，接點，藉由細長 屬板的ϋ字型的彎折所加工，在該接點的與其 接觸的頂板部的背面，藉由衝壓拉深加工而一體 線圈彈簧的防止脫落用卡止突部，所以藉由衝壓 與彎折加工的一連串的加工，而能簡單地形成。 藉由請求項4記載的發明，接點，藉由細長 點的頂板 的接觸部 進退地設 有：與該 屬板的彎 部的背面 止突部； 圏彈簧的 圈彈簧也 徑，則能 脫落用卡 彈簧端部 ，也不會 導電性金 他機器電 地設置有 拉深加工 導電性金 -9- 201214844 屬板的U字型的弩折所加工，在該接點的與其他機器電 接觸的頂板部的寬度小於線圏彈簧的內徑，在該頂板部的 背面，藉由彎折加工而一體地設置有線圈彈簧的防止脫落 用卡止突部，所以藉由一連串的加工而簡單地形成全部加 工。 藉由請求項5記載的發明，在接點的頂板部的與其他 機器電接觸的面，一體地設置有突出的接觸部，所以即使 在頂板部的背面一體地設置有線圈彈簧防脫落用卡止突部 ’也能讓頂板部的表面的接觸部與其他機器的接觸更加確 實。 【實施方式】 本發明是彈簧連接器，在殼體24，將以線圈彈簧27 彈壓的接點26設置成可自由進退，並且固定地設置有與 該接點26電連接的電極25，上述接點26，藉由較線圈彈 胃27的直徑更細寬度的導電性金屬板的彎折所加工，在 _接點26的與其他機器電接觸的頂板部26b的背面，一 體地設置有：上述線圈彈簧2 7的防止脫落用卡止突部 26d 〇 上述線圈彈簧27的防止脫落用卡止突部26d，其長 度作爲：與線圈彈簧27的端部的水平的彈簧端部27a、 以及達續於該彈簧端部27a的至少一圈的螺旋部27b卡合 的長度。 上述接點26，藉由細長導電性金屬板的U字型的彎 -10- 201214844 折所加工，在該接點26的與其他機器電接觸的頂板部 2 6b的背面，藉由衝壓拉深加工一體地設置有：線圈彈簧 27的防止脫落用卡止突部26d。 上述接點26，藉由細長導電性金屬板的U字型的彎 折所加工’該接點26的與其他機器電接觸的頂板部26b 的寬度小於線圈彈簧27的內徑，在該頂板部26b的背面 ’藉由彎折加工一體地設置有：線圈彈簧27的防止脫落 用卡止突部26d。 在上述接點26的頂板部26b的與其他機器電接觸的 面’ 一體地設置有突出的接觸部26e » [實施例1 ] 根據第1圖〜第5圖來說明本發明的實施例1。 本發明的彈簧連接器，是由：殼體24、電極25、接 點2 6、線圈彈簧2 7所構成。 上述電極25，雖然能將導電性金屬板一個個切割， 進行彎折加工，而在本發明，是將長導電性金屬板在預定 間隔複數個連鎖切割之後，再進行彎折加工而成。 如第5圖所示，該電極25，是以：從底板部25a的 兩側彎折成〈字型而垂直立起的兩個接觸片部25b、從上 述底板部25a的前後挖空出卡止孔部25e而垂直立起的兩 個卡止片部25d、以及從該控空部分的底板部25a朝水平 方向延伸的兩個端子部25c所構成。 上述接點26，雖然能將導電性金屬板一個個切割， -11 - 201214844 進行彎折加工’而在本發明，與上述電極25同樣地，是 將長導電性金屬板在預定間隔複數個連鎖切割之後，再進 行灣折加工而成。 如第5圖所示，上述接點2 6，在其寬度d較上述線 圈彈簧2 7的直徑更細長的導電性金屬板的中間部，藉由 衝壓拉深加工等形成了卡止突部26d，形成該卡止突部 26d的部分成爲頂板部26b，且彎折成U字型，在兩側形 成側板部26a ’在該側板部26a的端部的兩側形成有卡合 突部26c。因此，兩側板部26a以外的兩個面，形成有開 口的窗部。上述卡止突部26d，藉由充分地突出於頂板部 2 6b的內側，其長度作成：至少與後述線圈彈簧2 7的端 部的水平的彈簧端部27a、以及與該彈簧端部27a連續的 —圈的螺旋部27b卡合，且當接點26進退動作時不會簡 單地脫落的長度。在上述頂板部26b的上面，爲了與電池 組件1 8等的其他機器的端子部達成良好的接觸，形成環 狀且稍微突出的接觸部26e較佳。該接點26，雖然其兩 枚側板部26a的內側尺寸稍大於上述線圈彈簧27的外徑 ，而藉由使側板部26a的寬度d小於上述線圈彈簧27的 外徑，則可儘可能地達成小型化。 上述線圈彈簧27，如第1圖及第2圖所示，使兩端 的水平的彈簧端部27a的外徑稍小於螺旋部27b，螺旋部 27b的內側緊貼且連續於該彈簧端部27a。 上述殻體24，是由絕緣性合成樹脂或導電性金屬材 料所構成，如第1圖~第4圖所示，顯示了 ：作成大致長 -12- 201214844 方體，組裝有由上述電極2 5與接點2 6與線圈 構成的一組彈簧連接器的例子。可是，上述葡 預定間隔組裝有複數組彈簧連接器也可以。 上述殻體24’貫穿形成有：用來在垂直 合上述接點26讓其進退的接點突出孔24a, 出孔2 4 a的兩側形成有：用來將電極2 5的接 插入的接觸片收容溝24b’並且爲了讓上述接 合突部26c進退不會突出超過預定程度以上， 形成有：具有段部24f的卡合突部導引溝24c 體24的外側的兩面，設置有：用來從下面嵌 片部25d的淺溝部2k、以及位於該溝部24e 卡止突部2 4 d。 將在如以上構造的殼體2 4組裝：接點2 6 27、與電極25的順序加以說明。 從底部側將接點26嵌合於殼體24的接點 。然後，讓接點26的卡合突部26c沿著卡合 24c滑動至卡合於段部24f，讓頂板部26b側從 上面突出。 接著，從底部側將線圈彈簧2 7插入到] 2 4 a。然後，讓線圈彈簧2 7的上端的彈簧端部 彈簧端部2 7 a連續的螺旋部2 7 b，嵌合於卡止多 接著，從底部側將線圏彈簧2 7的兩側E 2 5 b插入到接觸片收容溝2 4 b，並且將兩側E 25d嵌入到溝部2“。雖然線圈彈簧27的下 1彈簧27所 J體24，以 方向鬆動嵌 在該接點突 觸片部2 5 b 點2 6的卡 而從底部側 。在上述殼 入上述卡止 的中間部的 、線圈彈簧 突出孔24a 突部導引溝 !殼體24的 接點突出孔 2 7 a以及與 ξ 部 2 6 d。 β接觸片部 j勺卡止片部 端部從殼體 -13- 201214844 24的底部側突出，而當以底板部25a克服線圈彈簧2?將 其壓入時，卡止孔部25e越過卡止突部24d而卡止。此時 ’由於壓縮著線圈彈簧27，所以接點26，其卡合突部 26c在卡合突部導引溝24c的上方段部24f卡止，接點26 從殻體24突出，而組裝完成。 如以上方式組裝的彈簧連接器，當使電池組件1 8等 的其他機器的下面的端子部，接觸而壓入於接點26的上 端部的接觸部26e時，克服線圈彈簧27而將接點26壓T ’該接點26的側板部26a —邊與電極25的接觸片部25b 面接觸一邊下降。因此’其他機器的端子部，經過接點 26的側板部26a、電極25的接觸片部25b、底板部25a、 端子部25c，而與電路基板15電連接。 [實施例2] 在上述實施例1，所顯示的例子，是接點26的卡止 突部26d藉由以細長導電性金屬板利用衝壓拉深加工等形 成。 可是並不限於此，也能如第6圖所示以彎折加工構成 。更詳細來說，上述接點2 6，將其寬度d較上述線圈彈 簧27的直徑更細長的導電性金屬板，彎折成u字型而在 兩側形成側板部26a，在該側板部26a的端部的兩側形成 卡合突部26c ’這方面與實施例1相同，而將形成卡止突 部26d的頂板部26b的部分的寬度dl作得較小成爲：讓 線圈彈簧27的彈簧端部27a與連續於該彈簧端部27a的 -14- 201214844 螺旋部2 7 b卡合的程度，在中央部朝下對折，在頂板部 26b的兩側部分折回成，分別在卡止突部26d與側板部 2 6 a之間具有讓線圈彈簧2 7卡合的間隙。此時，頂板部 26b部分，藉由稍微朝上彎曲，則接觸部26e與其他機器 的端子部達成良好接觸。在該實施例2，在切割之後，只 要進行彎折加工則能構成，其加工較實施例1的衝壓拉深 加工更容易。 [實施例3] 在上述實施例1及2，都是作成：使接點26的寬度d 小於線圈彈簧27的直徑，且藉由將細寬度板部折回成u 字型，在接點2 6的兩側開口有窗部，讓線圈彈簧2 7的一 部分從接點26的兩側的窗部露出。 可是並不限於此，也可作成：僅在接點26的其中一 面開口有窗部，讓線圈彈簧27的一部分只從接點26的一 個窗部露出。 【圖式簡單說明】 第1圖是顯示本發明的彈簧連接器的實施例1，是第 4圖的A - A線剖面圖。 第2圖是顯示本發明的彈簧連接器的實施例丨，是第 4圖的B-B線剖面圖。 第3圖是顯示本發明的彈簧連接器的實施例1的正視 圖。 -15- 201214844 第4圖是顯示本發明的彈簧連接器的實施例1的俯視 圖。 第5圖是顯示本發明的彈簧連接器的實施例1的電極 2 5與接點2 6的立體圖。 第6圖是顯示本發明的彈簧連接器的實施例2的接點 26的立體圖。 第7圖是習知的彈簧連接器的剖面圖。 第8圖是習知的彈簧連接器的方筒狀外銷n與$_ 狀內銷12的立體圖。 【主要元件符號說明】 10:習知的彈簧連接器 1 1 :方筒狀外銷 1 2 :方筒狀內銷 1 3 :線圏彈簧 14 :殻體 1 5 :電路基板 16 :上座部 1 7 :下座部 1 8 :電池組件 19 :導引溝 20 :端子片 21 :導引突片 22 :接觸部 -16- 201214844 2 3 :卡止片 24 :殼體 25 :電極 2 6 :接點 2 7 :線圈彈簧 -17201214844 6. TECHNOLOGICAL FIELD OF THE INVENTION [Technical Field] The present invention relates to a connector for a battery mainly used for a mobile phone and other small electronic devices, and is also referred to as a spring connector such as a probe pin or a spring probe. [Prior Art] In the conventional spring connector, a cylindrical outer pin formed of a cylindrical tube is freely retractably fitted: a solid round bar that is biased by a coil spring The cylindrical inner pin protrudes from the cylindrical outer pin by the front end portion of the cylindrical inner pin, and the protruding end portion is crimped to the terminal of the battery to be electrically connected. In order to form a locking projection of the housing, a terminal portion, and a mutual engagement portion between the cylindrical outer pin and the cylindrical inner pin, the spring connector must be formed in the cylindrical inner pin and the cylindrical outer pin of the metal. It is carried out by a lathe or a press machine: troublesome processing such as cutting processing or drawing processing has a problem that the cost becomes high. In addition to the structure formed by cutting or deep drawing of a solid metal rod or a cylindrical tube of a metal, it is known to carry out a conductive metal plate as shown in FIGS. 7 and 8 . The cutting is performed, and the outer pin and the inner pin are formed into a rectangular tubular shape by bending (Patent Document 1). In the figure, a conventional spring connector 10 is composed of a rectangular tubular outer pin 1 1 , a rectangular tubular inner pin 12 , and a coil spring 13 . The rectangular tubular outer pin 11 is formed by cutting one conductive metal plate into: -5- 201214844 back plate portion 1 1 a, side plate portion 1 1 b, front plate portion 1 1 c, notch 1 1 d, locking piece portion 1 1 e, the bottom plate portion 1 1 f, and the terminal portion ig are formed by bending a portion of the broken line into a rectangular tube shape. The front plate portion 11c of the upper half of the rectangular tubular outer pin 11 is butted from the left and right by a 1/2-width structure, and the notched lid portion constitutes the guide groove 19. The locking piece 23 is bent outward to form the locking piece 23, and the left and right bottom plate portions 11f are bent to form a bottom plate. The terminal portion 11g is bent downward from the bottom plate to constitute the terminal piece 20. The rectangular tubular inner pin 12 cuts one conductive metal plate into a back plate portion 12a, a side plate portion 12b, a front plate portion 12c, a guide piece portion 12d, and a contact piece portion 1 2e, and bends a portion of the fold line The folding process is loosely fitted into the square tubular outer pin 11 to form a rectangular tube shape. The guide piece portion 1 2d of the lower portion of the rectangular tubular inner pin 12 is formed to protrude outward from the right and left to form a guide projection 21 that is engaged with the guide groove 19 and that advances and retracts. The contact portion 22 is formed by bending the upper contact piece portion 1 2e into an arc shape and locking the front plate portion 1 2c. The coil spring 13 is housed in the rectangular tubular outer pin 11 and the rectangular tubular inner pin 12 configured as described above. As shown in Fig. 7, between the casing 14 and the circuit substrate 15, the upper portion 16 It is held perpendicularly to the lower seat portion 17. In this manner, the terminal piece 20 of the rectangular tubular outer pin 11 is electrically connected to the circuit board 15, and the locking piece 23 of the rectangular tubular outer pin 11 is sandwiched and fixed by the lower seat portion 17 and the upper seat portion 16. The square inner pin 12 guides the guide tab 21 with the guide groove 19 of the rectangular tubular pin 1 I, and the coil spring 13 causes the contact portion 22 of the upper end to protrude from the square tubular pin 1 1 . In this configuration, when the terminal -6-201214844 of the other device of the battery unit 18 or the like is brought into contact with the contact portion 22 of the rectangular tubular inner pin 12, the square tube-shaped inner pin is overcome by the coil spring 13 12 is pressed and passed through the rectangular tubular inner pin 12, the rectangular tubular outer pin 11, and the terminal piece 20 to be electrically connected to the circuit board 15. [Prior Art Document] [Patent Document 1] [Patent Document 1] WO2005/112200 SUMMARY OF THE INVENTION [Problems to be Solved by the Invention] The conventional spring connector 1 has the following problems. (1) The square tubular outer pin 11 and the square tubular inner pin 12' have a punching and bending process of one conductive metal plate, so that the processing is simple: and the inside of the square inner pin 12 is The coil spring 13' is housed so that the overall height is low. However, since the coil spring 13 is housed inside the rectangular tubular inner pin 12, the rectangular tubular inner pin 12 can be fitted into the rectangular tubular outer pin 11 so as to be retractable and retractable. Therefore, the inner portion of the square tubular inner pin 1 2 must be placed. The longitudinal and lateral dimensions are larger than the diameter of the coil spring 13, and since the rectangular tubular outer pin 11' loosely fits the square tubular inner pin 12, the longitudinal and lateral dimensions of the inner portion of the rectangular tubular outer pin 1 must be made larger than the longitudinal and lateral directions of the square tubular inner pin 12. The size of the spring connector 10 is limited in size. (2) The square tubular outer pin 1 1 and the square tubular inner pin 1 2 ' are bent by the respective punching and 201214844 into a back plate portion, a side plate portion, and a front plate, so that the workability is still problematic. An object of the present invention is to provide a contact point from the diameter of the bead spring and to prevent the coil spring from coming from the [means for solving the problem]. The spring is elastically provided with an electrode electrically connected to the contact, and the metal plate is bent and processed, and the line locking protrusion is integrally provided on the back surface of the contact portion and the plate portion. The spring-engaging-disengaging locking projection described in claim 2 of the present invention has a length that is a length at which the horizontal spring end portion is engaged. The U-shaped bent portion of the spring continuous-length conductive metal plate according to the third aspect of the present invention is provided with a coil spring preventing and falling-off card by the U-shaped bending portion of the other device electrically contacting the back surface of the present invention. In the U-shaped bent portion of the spring continuous conductive metal plate described in FIG. 4, the width of the top plate portion that is electrically contacted by the other device is smaller than the back surface of the top plate portion, and the locking preventing protrusion portion is prevented from being bent. The portion of the body and other complex shapes that protrude from the body is smaller than the wire contact. The connector, in the housing, can be self-contacting, and is fixedly provided with a contact, which is a connector for preventing the falling off of the top spring by electrically contacting other machines, the prevention of the coil spring and the end of the coil spring The connector, the contact, is finished by fine machining, and the protrusion is formed by the drawing and deep drawing. The connector, the contact, and the coil spring 201214844 are provided in the body of the coil spring 201214844 by the fine machining of the inner diameter of the coil spring, and the spring connector described in claim 5 of the present invention The surface of the electrical contact is integrally provided with the protrusion. [Effect of the Invention] According to the invention of claim 1, the housing can be freely provided with a contact that is biased by the coil spring, and an electrode that is electrically connected to the contact is fixedly disposed. The contact is processed by a conductive gold fold, and the top plate of the contact that is in electrical contact with the other device is integrally provided with the card for preventing the drop of the coil spring, so that the width of the contact is smaller than the turn The diameter of the spring, even if a part of the wire is exposed from the contact, the wire does not fall off during the advance and retreat action of the contact. The shape of the spring connector is further miniaturized by making the width of the contact smaller than that of the coil spring. According to the invention of claim 2, the anti-protrusion portion □ of the coil spring is formed to have a horizontal engagement with at least the end portion of the coil spring. Therefore, even if the advance and retreat operation of the contact is repeated, the coil spring is detached and ejected. According to the invention of claim 3, the contact is processed by the U-shaped bending of the elongated plate, and the coil spring is integrally formed by press drawing and drawing on the back surface of the top plate portion of the contact which is in contact with the contact portion. Since the seizing preventing projections are prevented, they can be easily formed by a series of processes such as punching and bending. According to the invention of claim 4, the contact portion is provided with a rear end stop portion of the bent portion of the sub-plate by the contact portion of the top plate of the elongated point; and the ring spring of the spring is also able to fall off With the end of the spring of the card, it is not electrically conductive. The machine is electrically equipped with a U-shaped die-cutting process for deep drawing of the conductive gold-9-201214844, which is in electrical contact with other machines at the contact. The width of the top plate portion is smaller than the inner diameter of the coil spring, and the anti-dropping preventing projection portion of the coil spring is integrally provided on the back surface of the top plate portion by bending, so that it is easily formed by a series of processes. All processed. According to the invention of claim 5, since the protruding contact portion is integrally provided on the surface of the top plate portion of the contact that is in electrical contact with the other device, the coil spring prevention card is integrally provided on the back surface of the top plate portion. The stop projections also make the contact of the surface of the top plate portion more in contact with other machines. [Embodiment] The present invention is a spring connector in which a contact 26 that is biased by a coil spring 27 is provided to be freely advanced and retractable, and an electrode 25 electrically connected to the contact 26 is fixedly disposed. Point 26 is processed by bending of a conductive metal plate having a smaller diameter than the diameter of the coil volar 27, and is integrally provided on the back surface of the top plate portion 26b of the _ contact 26 in electrical contact with the other device: The locking protrusion 26d for preventing the fall of the coil spring 27, the locking protrusion 26d for preventing the falling of the coil spring 27, the length of which is the spring end 27a of the horizontal end of the coil spring 27, and the continuation The length of the at least one turn of the spiral portion 27b of the spring end portion 27a is engaged. The contact 26 is processed by a U-shaped bend -10-201214844 of an elongated conductive metal plate, and is punched and drawn by the back surface of the top plate portion 26b of the contact 26 in electrical contact with other devices. The locking protrusion 26d for preventing the falling of the coil spring 27 is integrally provided. The contact 26 is processed by a U-shaped bending of the elongated conductive metal plate. The width of the top plate portion 26b of the contact 26 in electrical contact with the other device is smaller than the inner diameter of the coil spring 27, and the top plate portion is The back surface of the 26b is integrally provided with a locking protrusion 26d for preventing the falling of the coil spring 27 by bending. A protruding contact portion 26e is integrally provided on a surface of the top plate portion 26b of the contact 26 that is in electrical contact with another device. [Embodiment 1] Embodiment 1 of the present invention will be described with reference to Figs. 1 to 5 . The spring connector of the present invention is composed of a casing 24, an electrode 25, a contact 26, and a coil spring 27. In the above-described electrode 25, the conductive metal sheets can be bent one by one and bent, and in the present invention, the long conductive metal sheets are bent and processed at a predetermined interval and then bent. As shown in Fig. 5, the electrode 25 is a two-contact piece portion 25b which is bent from the both sides of the bottom plate portion 25a and is vertically erected, and is hollowed out from the front and rear of the bottom plate portion 25a. The two locking piece portions 25d that stand vertically in the hole-receiving portion 25e and the two terminal portions 25c that extend in the horizontal direction from the bottom plate portion 25a of the air-control portion are formed. In the above-described contact 26, the conductive metal sheets can be cut one by one, and -11 - 201214844 can be bent. In the present invention, similarly to the above-described electrodes 25, the long conductive metal sheets are interlocked at predetermined intervals. After cutting, the bay is processed. As shown in Fig. 5, the contact point 26 is formed in the intermediate portion of the conductive metal plate whose width d is longer than the diameter of the coil spring 27, and the locking projection 26d is formed by press drawing or the like. The portion where the locking projection 26d is formed is the top plate portion 26b, and is bent into a U-shape, and the side plate portions 26a are formed on both sides. The engagement projections 26c are formed on both sides of the end portions of the side plate portions 26a. Therefore, a window portion having an opening is formed on both surfaces other than the side plate portions 26a. The locking projection 26d is sufficiently protruded from the inner side of the top plate portion 26b, and has a length that is at least horizontal with the spring end portion 27a of the end portion of the coil spring 27 to be described later, and continuous with the spring end portion 27a. The loop portion 27b of the loop is engaged, and the length of the joint 26 does not simply fall off when it moves forward and backward. It is preferable that the upper surface of the top plate portion 26b is in contact with the terminal portion of another device such as the battery unit 18, and the contact portion 26e which is formed in a ring shape and slightly protrudes. The contact point 26 has an inner dimension of the two side plate portions 26a slightly larger than the outer diameter of the coil spring 27, and the width d of the side plate portion 26a is smaller than the outer diameter of the coil spring 27 as much as possible. miniaturization. As shown in Figs. 1 and 2, the coil spring 27 has an outer diameter of the horizontal spring end portion 27a at both ends slightly smaller than the spiral portion 27b, and the inner side of the spiral portion 27b is in close contact with and continuous with the spring end portion 27a. The casing 24 is made of an insulating synthetic resin or a conductive metal material. As shown in Figs. 1 to 4, it is shown that a substantially long -12-201214844 square body is formed, and the electrode 2 5 is assembled. An example of a set of spring connectors formed with contacts 26 and coils. However, it is also possible to assemble a complex array spring connector at a predetermined interval of the above-mentioned Portuguese. The housing 24' is formed with a contact protruding hole 24a for vertically advancing and retracting the contact 26, and two sides of the exit hole 24a are formed with contacts for inserting the electrode 25. The sheet receiving groove 24b' is formed so that the engaging projection portion 26c does not protrude more than a predetermined level or more, and the two sides of the outer side of the engaging projection guiding groove 24c having the segment portion 24f are formed: The shallow groove portion 2k of the insert portion 25d from the lower surface and the locking portion 24d of the groove portion 24e are located. The assembly of the housing 24 constructed as above will be described in the order of the contacts 2 6 27 and the electrodes 25. The contacts 26 are fitted to the contacts of the housing 24 from the bottom side. Then, the engaging projection 26c of the contact 26 is slid along the engaging portion 24c to be engaged with the segment portion 24f, and the top plate portion 26b side is protruded from the upper surface. Next, the coil spring 27 is inserted from the bottom side to ] 2 4 a. Then, the spring end spring end portion 7 7 a of the coil spring 27 is spring-engaged, and the continuous spiral portion 2 7 b is fitted to the locking portion. Then, the two sides of the coil spring 2 7 are e 2 5 from the bottom side. b is inserted into the contact piece receiving groove 2 4 b, and the both sides E 25d are fitted into the groove portion 2". Although the lower body spring 27 of the coil spring 27 is engaged with the J body 24, the contact synapse portion 2 is loosely inserted in the direction. 5 b points 26 6 from the bottom side. The coil spring protruding hole 24a at the intermediate portion of the above-mentioned locking portion guides the groove; the contact protrusion hole 2 7 a of the housing 24 and the ridge portion 2 6 d. The end portion of the β contact piece portion j scooping piece protrudes from the bottom side of the housing-13-201214844 24, and when the bottom plate portion 25a is pressed against the coil spring 2, the locking hole portion is pressed The 25e is locked over the locking projection 24d. At this time, the coil spring 27 is compressed, so that the contact 26 is engaged with the engaging projection 26c at the upper portion 24f of the engaging projection guiding groove 24c. The point 26 protrudes from the housing 24 and the assembly is completed. The spring connector assembled as above, when the lower end of the other device such as the battery assembly 18 is made When the contact portion 26e is pressed into the upper end portion of the contact point 26, the contact portion 26 is pressed against the coil spring 27, and the side plate portion 26a of the contact point 26 is flush with the contact piece portion 25b of the electrode 25. The contact portion of the other device passes through the side plate portion 26a of the contact 26, the contact piece portion 25b of the electrode 25, the bottom plate portion 25a, and the terminal portion 25c, and is electrically connected to the circuit board 15. [Embodiment 2] In the first embodiment described above, the locking projection 26d of the contact 26 is formed by a press drawing process or the like on an elongated conductive metal plate. However, the present invention is not limited thereto, as shown in FIG. More specifically, the contact portion 26, the conductive metal plate having a width d which is longer than the diameter of the coil spring 27 is bent into a U-shape to form the side plate portion 26a on both sides. In the same manner as in the first embodiment, the engagement projection 26c' is formed on both sides of the end portion of the side plate portion 26a, and the width dl of the portion of the top plate portion 26b forming the locking projection 26d is made smaller: Let the spring end 27a of the coil spring 27 continue from the spring end 27a - 14-201214844 The degree of engagement of the spiral portion 2 7 b is folded downward at the center portion, and is folded back at both side portions of the top plate portion 26b, and has a coil spring between the locking projection portion 26d and the side plate portion 2 6 a, respectively. 2 7 The gap of the engagement. At this time, the portion of the top plate portion 26b is slightly curved upward, and the contact portion 26e makes good contact with the terminal portions of the other devices. In the second embodiment, after the cutting, the bending is performed as long as The processing can be constructed, and the processing is easier than the press drawing processing of the first embodiment. [Embodiment 3] In the above-described Embodiments 1 and 2, both are made such that the width d of the contact 26 is smaller than the diameter of the coil spring 27, and by folding the thin-width plate portion back into a U-shape, at the joint 26 A window portion is opened on both sides, and a part of the coil spring 27 is exposed from the window portions on both sides of the contact 26. However, the present invention is not limited thereto, and a window portion may be opened only on one of the contacts 26 so that a part of the coil spring 27 is exposed only from one window portion of the contact 26. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view taken along line A - A of Fig. 4 showing a first embodiment of a spring connector of the present invention. Fig. 2 is a cross-sectional view taken along line B-B of Fig. 4 showing an embodiment of the spring connector of the present invention. Fig. 3 is a front elevational view showing the first embodiment of the spring connector of the present invention. -15-201214844 Fig. 4 is a plan view showing the first embodiment of the spring connector of the present invention. Fig. 5 is a perspective view showing the electrode 25 and the contact 26 of the first embodiment of the spring connector of the present invention. Fig. 6 is a perspective view showing a joint 26 of the second embodiment of the spring connector of the present invention. Figure 7 is a cross-sectional view of a conventional spring connector. Fig. 8 is a perspective view of a rectangular tubular pin n and a $_like inner pin 12 of a conventional spring connector. [Explanation of main component symbols] 10: Conventional spring connector 1 1 : Square tubular outer pin 1 2 : Square tubular inner pin 1 3 : coil spring 14 : Housing 1 5 : Circuit board 16 : Upper seat 1 7 : Lower seat portion 1 8 : Battery assembly 19 : Guide groove 20 : Terminal piece 21 : Guide tab 22 : Contact portion - 16 - 201214844 2 3 : Locking piece 24 : Housing 25 : Electrode 2 6 : Contact 2 7: coil spring -17