200832848 九、發明說明 【發明所屬的技術領域】 本發明關於同軸電連接器。 【先前技術】 冏軸電連接器’具備·具有在與對方連接器的嵌合方 向具有軸線且在一端側開口的嵌合筒狀部的外部導體；收 納保持於該嵌合筒狀體的介電質；及具備供同軸電纜的中 心導體連接的連接部和與對方端子接觸的接觸部，且以上 述介電質加以保持的中心端子。 作爲該同軸電連接器，可舉出如專利文獻1所揭示的 同軸電連接器，該連接器具有按壓構件，其按壓配置於端 子的連接部的支承面上的中心導體，外部導體具有：在與 砍合同狀邰的境界屈曲’覆蓋該嵌合筒狀部的蓋部；和與 該蓋部連續形成，在該蓋部屈曲後，圍繞保持同軸電纜的 圍繞部。 在此專利文獻1，上述按壓構件作爲端子的一部分的 屈曲片加以形成，上述屈曲片朝支承中心導體的連接部屈 曲，在該屈曲片與連接部之間夾壓中心導體。因此，中心 導體不需要焊接於端子，又，即使中心導體在對軸線呈直 角的方向上稍許位移，在與連接部的連接上不會產生任何 問題。 [專利文獻1]日本特開2002-324636號公報 200832848 【發明內容】 [發明所欲解決的課題] 專利文獻1的同軸電連接器，因不需要將同軸電纜的 中心導體焊接於連接器的端子，僅以按壓構件進行按壓即 可，所以，極爲簡單，又，即使中心導體稍許偏移於與其 軸線呈直角的方向，也因按壓構件具有充分大的面積，所 以，在連接上不會產生任何問題。 但，在該專利文獻1的同軸電連接器，在中心導體稍 許偏移於與其軸線呈直角的方向的情況時，即使在連接上 不會產生任何問題，該連接位置也由正規位置偏移，所以 ，阻抗脫離正規値，使高頻特性降低。且，當因作用於電 纜的外力等，使上述中心導體的位置無法成爲一定而產生 變化時，則會造成高頻特性變得不穩定。 本發明是有鑑於這種情事而開發完成的發明，其課題 在於提供一種同軸電連接器，不需要將同軸電纜的中心導 體進行焊接，可經常穩定地位於正規位置的同軸電連接器 [用以解決課題的手段] 本發明的同軸電連接器，是具備：具有在與對方連接 器的嵌合方向具有軸線且在一端側開口的嵌合筒狀部的外 部導體；收納保持於該嵌合筒狀體的介電質；及具備供同 軸電纜的中心導體連接的連接部和與對方端子接觸的接觸 部，且以上述介電質加以保持的中心端子；及按壓配置於 -5- 200832848 上述連接部的支承面上的上述中心導體的按壓構件’上述 外部導體具有：在與上述嵌合筒狀部的境界屈曲’覆蓋該 嵌合筒狀部的蓋部；和與該蓋部連續形成，在該蓋部屈曲 後圍繞保持同軸電纜的圍繞部。 在該同軸電連接器，於本發明，其特徵爲，按壓構件 作爲介電質或中心端子的一部分加以形成’可朝該連接邰 屈曲，來按壓上述中心端子的支承面的上述中心導體’在 該按壓構件的對上述中心導體的按壓面與中心端子的達接 部的支承部中的至少一方，形成對中心導體決定在其半徑 方向的正規位置的位置限制部，藉由上述蓋部的屈曲’中 心導體承接來自於按壓構件的按壓力，以上述位置限制部 保持於正規位置。 當將同軸電纜連接於這種結構的本發明的同軸電連接 器時，將除去同軸電纜的端部被覆而露出的中心導體配置 於形成在本發明的同軸電連接器的中心端子連接部的支承 面上。然後，屈曲外部導體的蓋部，對按壓構件施加按壓 力。按壓構件承受此力，在該按壓構件的按壓面與端子的 連接部的支承面之間夾壓上述電纜的中心導體。在本發明 ，於上述按壓構件的按壓面與端子的連接部的支承面的至 少一方形成有位置限制部，中心導體隨著在上述按壓面與 支承面之間被夾壓，藉由上述位置限制部保持於正規位置 。如此，在本發明的同軸電連接器，因中心導體保持於正 規位置，所以，阻抗成爲正規値，能夠使得高頻特性良好 且穩定。 -6 - 200832848 在本發明，按壓構件可作爲介電質的一部分或端子的 一部分來形成的。即，在本發明，介電質具有受到屈曲時 的蓋部所按壓而屈曲的屈曲片作爲該介電質的一部分，該 絕緣屈曲片形成爲按壓構件，或端子具有受到屈曲時的絕 緣屈曲片所按壓而屈曲的端子屈曲片作爲該端子的一部分 ，該端子屈曲片形成爲按壓構件。當使外部導體的蓋部屈 曲時，受到該蓋部所按壓，在作爲上述介電質或端子的一 部分所形成的按壓構件的按壓面與端子的連接部的支承面 之間夾壓中心導體，以上述要領，藉由位置限制部，在正 規位置保持中心導體。 在本發明，位置限制部爲延伸於中心導體的軸線方向 的溝槽部，該溝槽部是作爲在溝槽寬度方向上，中央位置 最深而朝溝槽側緣位置逐漸變淺的傾斜溝槽來形成的，能 夠進行中心導體的導引。中心導體是藉由在端子支承面與 按壓構件的按壓面夾壓，在作爲上述位置限制部的傾斜溝 槽內，朝其深部導引，在該部位被保持。 在本發明，端子在其兩側緣具有承接按壓構件的寬度 方向兩側緣部的承接部爲佳。藉此，當按壓構件按壓時， 該按壓構件在其寬度方向兩側緣部受到端子的承接部所導 引，在上述寬度方向導引至正規位置。此寬度方向亦爲中 心導體的半徑方向，有助於中心導體在正規位置的保持。 特別是當在按壓構件設有位置限制部時’極具效果。 在按壓構件的寬度方向兩側緣部受到端子的承接部導 引的情況，按壓構件具有寬度方向兩側緣部側的薄壁部； 200832848 及在寬度方向，按壓面對該薄壁部突出的厚壁部爲佳。藉 此，按壓構件是在上述寬度方向兩側緣部，藉由端子的承 接部接受在寬度方向的導引，並且寬度方向中央部的厚壁 部的按壓面可充分地按壓中心導體。 在本發明，端子是在連接部的支承面與按壓構件的按 壓面中的至少一方，形成有阻止中心導體在軸線方向上的 移動的凹凸部爲佳。藉由此凹凸部，使得在按壓構件的寬 度方向被保持於正規位置的中心導體不會在其軸線方向移 動，能夠防止脫離。 在本發明，端子是在連接部的中心導體的正規位置， 孔部貫通於連接部的板厚方向並加以形成爲佳。在同軸電 連接器，上述連接部的下方即與對方連接器的嵌合側爲用 來供對方連接器的中心端子進入的空間，在與對方連接器 嵌合前，不會遮蔽對上述連接部的下面的視野。因此，若 即使受到蓋部所覆蓋，無法由上方確認中心導體，也能夠 藉由從下方觀看，透過上述孔部目視中心導體的話，能夠 確認端子的連接面的支承面上的中心導體不論在其半徑方 向或軸線方向均不會由正規位置大幅偏移。 且，在本發明，端子的連接部與按壓構件的至少一方 具有朝中心導體彈推的彈性構件爲佳。藉由朝中心導體彈 推，能夠使中心導體與端子的接觸變得確實且穩定。 [發明效果] 本發明如以上所述，以按壓構件的按壓變按壓載置於 -8- 200832848 端子的連接部的支承面上的電纜的中 於上述支承面與按壓面的至少一方設 置的位置限制部，所以，當將電纜連 上述按壓構件按壓中心導體，即可使 線呈直角的方向上維持於正規位置， 規値，使得高頻特性變得良好，並且 【實施方式】 以下，參照圖面，說明本發明的 圖1是顯示本實施形態的同軸電 前的狀態的斜視圖。 在圖1中，連接器1具有中心端子 導體30。 中心端子1 〇是加工金屬板來加以 長延伸的平板狀連接部1 1 ;與由佔據 大約一半的平坦部1 2 A的兩側緣垂下 接部1 1是在上述平坦部12A，形成有 同軸電纜的中心導體直徑若干大的ϋ 連接於上述平坦部12Α並延伸於上动 ，設有對該延伸方向呈直角延伸的招 形成凹凸部。在此，此凹凸部亦可藉 成。上述連接部1 1的平坦部1 2 Α與延 承上述中心導體的支承面1 2。又，連 伸部1 2B的兩側緣朝斜上方延伸的作頁 心導體並加以夾持， 置決定中心導體的位 接至連接器時，僅以 得中心導體在對其軸 因此，阻抗可保持正 該特性穩定。 實施形態。 連接器的各構件組裝 10、介電質20及外部 製作的，具有：呈較 此連接部1 1的長方向 的接觸部1 3。上述連 具較作爲連接對象的 [徑的孔部12A-1，在 t長方向的延伸部12B ί數個凹條12B-1，以 由設置凸條來加以形 伸部12Β形成用來支 接部1 1具有由上述延 斜壁1 4，此傾斜壁1 4 -9 - 200832848 的上面形成用來承接後述的按壓構件的承接部1 4 A。 由上述平坦部1 2 A的兩側緣垂下的一對接觸部1 3是以 隨著朝下方，相互的距離變窄的方式傾斜，在下端附近具 有喉部13A，以該喉部13A夾壓對方連接器的銷狀中心導 體並彈性接觸。 上述介電質20是將樹脂等的電氣絕緣材料成形來製作 的，一體地具有：筒狀的主體部2 1 ;在該主體部2 1的圓周 方向的一部分，由外周部起立的按壓構件22 ;在直徑方向 上，與該按壓構件22相反側，由主體部21的上緣朝半徑方 向延伸的肩部23 ;及在該肩部23的兩側，於半徑方向上延 伸較該肩部2 3更長的腕部24。 主體部21，其外周大致呈圓筒狀，在中央，以貫通上 下的方式開口形成有端子收容部25，該收容部作爲收容較 上述中心端子1〇的支承面12更下方部分的空間，具備大致 呈四角內筒面。 上述按壓構件22是在大致呈四角內筒面的端子收容部 25的外側，由上述主體部21豎立，在其基部可屈曲。該按 壓構件22的豎立高度設定成：當該按壓構件22在其基部朝 上述端子收容部25屈曲時，該按壓構件22的前端部覆蓋中 心端子10地到達上述肩部23的長度。上述按壓構件22爲在 主體部21的半徑方向具有厚度且在圓周方向具有寬度的板 片狀，寬度方向兩側成爲薄壁部22A，而中間成爲厚壁部 22B。此厚壁部22B呈寬度方向中央較其兩側深的凹面， 此凹面形成爲按壓面22B-1。因該按壓面22B-1在寬度方向 -10- 200832848 中央成爲最深，所以’可將同軸電纜的中心導體導引保持 在作爲該最深位置的正規位置，因此，該按壓面以8-1對 中心導體成爲位置限制部。 上述肩部23於主體部21的直徑方向上’在與上述按壓 構件22相反位置，由主體部21的上緣朝半徑方向延伸。其 延伸長度成爲：當上述中心端子10配置於端子收容部25內 時，可供該中心端子1〇的延伸部12B搭載的尺寸。在設置 於肩部23的兩側的腕部24內壁面，設有座部24A，其作爲 承接按壓構件22的薄壁部22A的止擋座來發揮功能。 上述腕部24爲與後述的外部導體30相互作用，來保持 連接於中心端子10且位在上述肩部23上的同軸電纜，具有 保持同軸電纜的強度。上述主體部21、肩部23及腕部24並 非本發明的特徵，可與以往的結構相同，在此省略其進一 步的說明。 收容介電質20的外部導體30是加工金屬板來加以製作 的，具有：圓化成大致呈圓筒狀，在圓周方向的一部位形 成有間隙3 1 A的嵌合筒狀部3 1 ;由夾持上述間隙3 1 A的兩 側位置平行地延伸的保持腕3 2 ;及在直徑方向上，位於與 上述間隙3 1 A相反側，由上述嵌合筒狀部3 1的上端豎立並 設置的蓋部33、固定部34、圍繞部35。 上述嵌合筒狀部31在內面具有承接介電質20的突出狀 座部3 1 B，在外周面下端附近，當與對方連接器的外部導 體嵌合時發揮鎖定功能的環狀鎖定槽3 1 C、對嵌合筒狀部 3 1賦予擴徑方向的彈性的切入槽3〗d形成於圓周方向的複 -11 - 200832848 數個位置。 保持腕32成爲由外側夾著上述介電質20的腕部24的形 態。該保持腕3 2，其前端部屈曲，在該屈曲部形成有可供 電纜延伸的凹部32A。 上述蓋部33經由收縮部36來與嵌合筒狀部31連結，藉 由此收縮部36，上述嵌合筒狀部31可屈曲，藉由屈曲，來 由上方覆蓋上述嵌合筒狀部31。該蓋部33具有平板部33A 與在其兩側屈曲的2個側部3 3 B，在該平板部3 3 A，於屈曲 形成上述側部33B側的面，藉由壓花加工形成有凸條部 3 3C。上述2個側部33B的內對向面彼此間的距離設定成： 與上述嵌合筒狀部3 1的外徑相同，或較該外徑若干大。 接續上述蓋部33所設置的固定部34呈與上述蓋部33類 似的形狀，具有平板部34A與側部34B。此固定部34形成 :當以上述收縮部36使蓋部33屈曲時，上述側部34B面對 保持腕32的外側面。因此，相較於蓋部33的2個側部33B， 該固定部34的2個側部34B彼此間的距離形呈較蓋部33的 情況若干小（狹窄）。 接續於上述固定部34所設置的圍繞部35呈與上述固定 部34類似的形狀，具有平板部35A與側部35B。此圍繞部 3 5位於：當以上述收縮部36使蓋部33屈曲時，受到通過上 述保持腕32的凹部32A延伸的同軸電纜的被覆部所覆蓋的 位置。又，圍繞部35的各側部35B是藉由細縫35C分離成 兩片，可理想地藉由對此電纜的被覆部的鉚接，圍繞並壓 著該被覆部。 -12- 200832848 這種外部導體30本身並非本發明的特徵，亦可與以往 的外部導體相同，在此省略進一步說明。 其次，說明關於這種具有中心端子1 0、介電質2 0、外 部導體3 0的同軸電連接器的組裝，及使用要領。 (1) 將如圖1所示的中心端子1 0收納至介電質2 0的端子 收容部25內，將該介電質20壓入至外部導體30的嵌合筒狀 部31內，完成如圖2所示的連接器。 (2) 其次，對如圖2所完成的連接器，配置：如圖3(A) 所示，在電纜的端部依次除去外覆層C 1、遮蔽線C2、介 電質C3使中心導體C4露呈的同軸電纜C。中心導體C4是 在中心端子1 〇的連接部1 1的支承面上，位置成遮蓋孔部 12A-1。如將該狀態擴大顯示的圖4所示，若中心導體C4 位於正規位置I的話，即使受到蓋部3 3所覆蓋而不能由上 方進行確認，但當由連接器的下方觀看時’也能透過孔部 12A-1確認其狀態。又，在圖4中，中心導體C4如位置II 、111般由正規位置1偏移或不存在，也能得知其樣子。 在確認了中心導體C4位於正規位置I的狀態下’電纜的 介電質C3載置於形成在中心端子1〇的延伸部12B的端部 的階差部1 2 B - 2及接續於該階差部的介電質2 0的肩部2 3上 。遮蔽線C 2及外覆層c 1則位於外部導體3 0的保持腕3 2外 〇 (C)在電纜C的中心導體C4迨樣地被支承於中心贿子 10的支承面12上的狀態下’將按壓構件22如圖3(B)所示’ 在其基部屈曲，使得按壓構件22的按壓面22B-1與中心端 -13- 200832848 子1 〇的支承面1 2上的中心導體C4形成面接觸（參照圖5)。 在上述屈曲過程中，在按壓構件22於其寬度方向上由正規 位置偏移的情況，如圖5所示，該按壓構件22的薄壁部 2 2 A的側緣會與中心端子1 0的傾斜壁1 4的承接面1 4 A抵接 ，朝正規位置導引於上述寬度方向。 (4)然後，將外部導體30的蓋部33在其基部屈曲’如 圖3(C)所示，以該蓋部33覆蓋連接器的上部，並且以固定 部3 4將電纜對介電質進行固定，以圍繞部35圍繞並壓著電 纜。當上述蓋部3 3在其基部屈曲時，則如圖5所示，該蓋 部3 3強力地按壓按壓構件22，其結果，在該按壓構件22的 按壓面22B-1與中心端子10的支承面12之間，以夾壓力保 持中心導體C4。因按壓面22B-1呈凹面，所以，即使中心 導體C4稍許由正規位置偏移，也能藉由上述夾壓力，朝 作爲位置限制部的按壓面22B-1的最深的正規位置加以導 引，並保持於該位置。固定部34是屈曲成抱持保持腕32並 保持該腕，而圍繞部3 5圍繞電纜C的外覆層並予以壓著保 持。如此，藉由固定部34及圍繞部35的保持，可維持上述 夾壓力。因藉由此夾壓力，中心導體C4被按壓於中心端 子10的凸條12B-1，所以也能夠有效地防止電纜脫離。再 者，藉由屈曲上述外部導體3 0的蓋部33，亦可一同屈曲上 述介電質20的按壓構件22，藉此，能夠一次完成屈曲作業 ，使得作業變得簡單。 本發明不限於圖1至圖5所示的實施形態，可進行各種 變更。 -14- 200832848 例如，將中心導體導引至正規位置並保持於該位置的 位置限制部，不僅可形成於按壓構件的按壓面，亦可形成 於端子側，亦可形成於按壓構件及端子的雙方。 圖6顯示在中心端子1 0的支承面1 2形成作爲位置限制 部的凹面，圖7顯示在按壓構件22的按壓面22B-1與中心端 子1 〇的支承面1 2雙方形成作爲位置限制部的凹面的例子。 作爲位置限制部的凹面，不需要爲彎曲面，亦可爲以 朝正規位置中的中心導體的軸線位置變深的方式具有2個 傾斜面的錐面，亦可爲凹部，該凹部具有階差部且形成流 槽狀，並且成該階差的兩邊緣間的距離較中心導體的直徑 小。在前者，以錐面可使中心導體確實且穩定地保持於正 規位置，而在後者，以兩邊緣支承中心導體的外周面，仍 可將中心導體保持於正規位置。 且，按壓構件亦可不作爲介電質的一部分，而是作爲 端子的一部分來加以形成。在圖8 (A )，中心端子1 0 —體地 具有：在孔部1 2 A-1側的支承面1 2的端部屈曲且由該端部 延伸的按壓構件1 5。該按壓構件1 5，其內面的按壓面1 5 A 呈與圖1所示的介電質20的按壓構件22的按壓面22B-1相同 的凹面。這種中心端子10是如圖8(B)所示，當組裝至連接 器時，受到介電質20的按壓構件22所按壓，上述中心端子 10的按壓構件15在其按壓面15A與支承面12之間夾壓中心 導體，將中心導體導引至正規位置並保持在該位置。 如此，按壓構件不僅可作爲介電質的一部分來形成， 亦可作爲端子的一部分來形成，進一步，亦可作爲與介電 -15- 200832848 質或端子不同體來形成。在該情況，該按壓構件會被要求 保持與端子或介電質的正規的位置關係。例如亦可圖9所 示，按壓構件22貼附於外部導體30的蓋部33，與蓋部33成 爲一體。 形成於介電質或端子的作爲位置限制部的凹面，其寬 度方向中央位置形成深，但亦可將該凹面作成：連續或斷 續地延伸於中心導體的軸線方向的溝槽部。或作爲呈點狀 存在的限制點來加以形成。 又，亦可端子的連接部與按壓構件的至少一方具有朝 中心導體彈推的彈性構件。在圖1 0，中心端子1 〇的連接部 11朝右端側向上傾斜且浮起，於上下方向具有彈性。因此 ，當中心導體被挾持於上述連接部1 1與介電質20的按壓構 件22之間時，以彈推力進行夾持，所以，可使與端子1 〇的 接觸變得確實且穩定。上述彈性構件亦可設置於上述按壓 構件22側。例如，如圖1 0的2點鎖線所示，使板簧等22C 介裝於按壓構件2 2與外部導體3 0的蓋部3 3之間的話，當按 壓構件2 2與蓋部3 3 —同屈曲時，按壓構件2 2承受來自於上 述板簧等22C的彈推力，伴隨此彈推力，將中心導體在與 端子的連接部之間予以夾持。 且，在圖1至圖3所示的實施形態，爲了防止中心導體 在軸線方向的脫離，設置用來提昇端子支承效率的凹凸部 ，但此凹凸部亦可設置於相對向的按壓構件側，亦可設置 於雙方。在設置於雙方的情況，設置成：相互的凸部的位 置偏移’另一*方的凹部相對向一方的凸部爲佳。 -16- 200832848 【圖式簡單說明】 圖1疋顯示本實施形態的同軸電連接器的各構件組裝 前的狀態的斜視圖。 圖2是顯示圖1的連接器組裝後，電纜連接前的狀態的 斜視圖。 圖3是依次顯示電纜連接至圖2的連接器的狀態，（A) 爲顯示配置電纜時的斜視圖，（B)爲顯示按壓構件屈曲時 的斜視圖’（C)爲顯示蓋部屈曲後的電纜連接爲呈時的斜 視圖。 圖4是顯示圖2的端子的恐怖的形態的端子放大顯示圖 〇 圖5是顯示以圖1的連接器的按壓構件的按壓面與端子 的支承面保持電纜的狀態的斷面圖。 圖6是顯示圖5的變形例的斷面圖。 圖7是顯示圖5的其他變形例的斷面圖。 圖8是其他實施形態的斜視圖，（A)僅顯示端子，（B ) 顯示組裝了該端子的連接器。 圖9是顯示本發明的其他實施形態的斜視圖。 圖1 〇是顯示本發明的其他實施形態的斷面圖。 【主要元件符號說明】 1 〇 :中心端子 1 1 :連接部 -17- 200832848 12 :支承面 12A-1 :孔部 12B-2 :凸條（凹凸部） 1 3 :接觸部 1 5 :按壓構件 15A :按壓面（位置限制部） 2 0 :介電質 22 :按壓構件 22A :薄壁部 22B :厚壁部 22B-1 :按壓面（位置限制部） 3 0 :外部導體 3 1 :嵌合筒狀部 3 3 :蓋部 3 5 :圍繞部 -18-200832848 IX. Description of the Invention [Technical Field of the Invention] The present invention relates to a coaxial electrical connector. [Prior Art] The x-axis electrical connector includes an outer conductor having a fitting tubular portion having an axis on the one end side in the fitting direction of the counterpart connector, and a housing that is housed and held in the fitting cylindrical body The electric terminal; and a center terminal provided with a connection portion for connecting the center conductor of the coaxial cable and a contact portion that is in contact with the counterpart terminal, and held by the dielectric material. As the coaxial electrical connector, there is a coaxial electrical connector disclosed in Patent Document 1, which has a pressing member that presses a center conductor disposed on a supporting surface of a connecting portion of a terminal, and the outer conductor has: The cover portion covering the fitting tubular portion is bent with the boundary of the cut contraction; and is formed continuously with the cover portion, and after the cover portion is flexed, surrounds the surrounding portion of the coaxial cable. In Patent Document 1, the pressing member is formed as a bent piece of a part of the terminal, and the bent piece is bent toward a connecting portion that supports the center conductor, and the center conductor is sandwiched between the bent piece and the connecting portion. Therefore, the center conductor does not need to be welded to the terminal, and even if the center conductor is slightly displaced in a direction perpendicular to the axis, no problem occurs in connection with the connection portion. [Problem to be Solved by the Invention] The coaxial electrical connector of Patent Document 1 does not require soldering the center conductor of the coaxial cable to the terminal of the connector. It is only necessary to press the pressing member, so that it is extremely simple, and even if the center conductor is slightly offset from the direction perpendicular to the axis, since the pressing member has a sufficiently large area, no connection is generated in the connection. problem. However, in the coaxial electrical connector of Patent Document 1, when the center conductor is slightly offset from the direction perpendicular to the axis thereof, the connection position is shifted from the normal position even if there is no problem in connection. Therefore, the impedance is out of the normal 値, and the high frequency characteristics are lowered. Further, when the position of the center conductor is not changed due to an external force acting on the cable or the like, the high-frequency characteristics become unstable. The present invention has been developed in view of such circumstances, and an object thereof is to provide a coaxial electrical connector which can be stably placed in a regular position in a coaxial electrical connector without soldering a center conductor of a coaxial cable. Means for Solving the Problem The coaxial electrical connector of the present invention includes an outer conductor having a fitting tubular portion having an axis on the one end side in a fitting direction with the counterpart connector, and is housed and held in the fitting cylinder a dielectric material having a connection portion for connecting a center conductor of the coaxial cable and a contact portion for contacting the other terminal, and holding the center terminal held by the dielectric material; and pressing the above-mentioned connection at -5 - 200832848 a pressing member of the center conductor on the support surface of the portion: the outer conductor has a lid portion that is bent to cover the fitting tubular portion at a boundary with the fitting tubular portion; and is formed continuously with the lid portion The cover is bent around and surrounds the surrounding portion of the coaxial cable. In the coaxial electrical connector, the present invention is characterized in that the pressing member is formed as a part of a dielectric or a central terminal, and the center conductor 'which can be bent toward the connecting jaw to press the supporting surface of the center terminal is At least one of the pressing surface of the pressing member facing the center conductor and the supporting portion of the connecting portion of the center terminal forms a position regulating portion that determines a normal position in the radial direction of the center conductor, and the buckling of the cover portion is performed. The center conductor receives the pressing force from the pressing member, and is held at the normal position by the position regulating portion. When the coaxial cable is connected to the coaxial electrical connector of the present invention having such a configuration, the center conductor exposed by the end portion of the coaxial cable is disposed and placed on the center terminal connecting portion of the coaxial electrical connector of the present invention. On the surface. Then, the lid portion of the outer conductor is bent to apply a pressing force to the pressing member. The pressing member receives this force, and the center conductor of the cable is sandwiched between the pressing surface of the pressing member and the supporting surface of the connecting portion of the terminal. In the present invention, at least one of the support surfaces of the pressing portion of the pressing member and the connecting portion of the terminal is formed with a position regulating portion, and the center conductor is pressed between the pressing surface and the supporting surface, and the position is restricted by the position The department is kept in a regular position. As described above, in the coaxial electrical connector of the present invention, since the center conductor is held at the regular position, the impedance becomes a regular enthalpy, and the high-frequency characteristics can be made good and stable. -6 - 200832848 In the present invention, the pressing member can be formed as a part of the dielectric or as a part of the terminal. That is, in the present invention, the dielectric material has a flexure piece which is pressed and buckled by the lid portion at the time of buckling as a part of the dielectric material, and the insulating buckling piece is formed as a pressing member, or the terminal has an insulating buckling piece when subjected to buckling. The terminal flexure piece that is pressed and buckled is a part of the terminal, and the terminal flexure piece is formed as a pressing member. When the lid portion of the outer conductor is bent, the center portion is pressed by the lid portion, and the center conductor is sandwiched between the pressing surface of the pressing member formed as a part of the dielectric or the terminal and the supporting surface of the connecting portion of the terminal. In the above manner, the center conductor is held at a regular position by the position restricting portion. In the present invention, the position restricting portion is a groove portion extending in the axial direction of the center conductor, and the groove portion is an inclined groove which is deepest at the center in the groove width direction and gradually becomes shallow toward the side edge of the groove. To form, it is possible to guide the center conductor. The center conductor is sandwiched by the pressing surface of the pressing member on the terminal supporting surface, and guided in the inclined groove as the position regulating portion, and held at the portion. In the present invention, it is preferable that the terminal has a receiving portion that receives both side edges of the pressing member in the width direction at both side edges thereof. Thereby, when the pressing member is pressed, the pressing members are guided by the receiving portions of the terminals at both side edges in the width direction, and are guided to the normal position in the width direction. This width direction is also the radial direction of the center conductor, which helps the center conductor to remain in the normal position. In particular, when the pressing member is provided with the position restricting portion, it is extremely effective. When both edge portions in the width direction of the pressing member are guided by the receiving portion of the terminal, the pressing member has thin portions on both side edges in the width direction; 200832848 and in the width direction, pressing against the thin portion The thick wall is better. Therefore, the pressing members are guided at the both side edges in the width direction by the receiving portion of the terminal in the width direction, and the pressing surface of the thick portion at the central portion in the width direction can sufficiently press the center conductor. In the present invention, it is preferable that the terminal has at least one of a contact surface of the connection portion and a pressing surface of the pressing member, and an uneven portion that prevents the center conductor from moving in the axial direction. By the uneven portion, the center conductor held at the normal position in the width direction of the pressing member does not move in the axial direction, and detachment can be prevented. In the present invention, it is preferable that the terminal is at a regular position of the center conductor of the connection portion, and the hole portion is formed to penetrate the thickness direction of the connection portion. In the coaxial electrical connector, the fitting side of the connecting portion below the connecting portion is a space for the center terminal of the counterpart connector to enter, and the connecting portion is not shielded before being fitted to the counterpart connector. The view below. Therefore, even if the center conductor is not covered by the cover portion, the center conductor can be visually recognized through the hole portion when viewed from below, and the center conductor on the support surface of the connection surface of the terminal can be confirmed. Neither the radial direction nor the axial direction is significantly offset by the normal position. Further, in the present invention, it is preferable that at least one of the connecting portion of the terminal and the pressing member has an elastic member that is urged toward the center conductor. By pushing toward the center conductor, the contact between the center conductor and the terminal can be made sure and stable. [Effect of the Invention] As described above, in the case where the pressing member is pressed, the cable placed on the support surface of the connection portion of the terminal of the -8-200832848 is placed at at least one of the support surface and the pressing surface. In the case where the cable is pressed against the center conductor by the pressing member, the wire can be maintained at a normal position in a direction perpendicular to the line, and the high-frequency characteristics are improved, and an embodiment is described below. 1 is a perspective view showing a state before the coaxial electric power according to the embodiment. In Fig. 1, the connector 1 has a center terminal conductor 30. The center terminal 1 〇 is a flat-shaped connecting portion 1 1 that is formed by processing a metal plate to be long-length; and the lower portion 1 1 is suspended from the side edges of the flat portion 1 2 A occupying approximately half of the flat portion 12A, and is formed coaxially The cymbal having a large diameter of the center conductor of the cable is connected to the flat portion 12A and extends upward, and is provided with a concave-convex portion extending at a right angle to the extending direction. Here, the uneven portion can also be borrowed. The flat portion 1 2 of the connecting portion 1 1 and the supporting surface 12 of the center conductor are extended. Moreover, the side edges of the extension portion 1 2B extend obliquely upward as a page core conductor and are clamped to determine that the center conductor is connected to the connector, and only the center conductor is on its axis. Therefore, the impedance can be Keep this feature stable. Implementation form. The components of the connector assembly 10, the dielectric material 20, and the exterior are provided with a contact portion 13 which is longer than the connecting portion 1 1 . The above-mentioned connection [the hole portion 12A-1 of the diameter is formed by the plurality of concave strips 12B-1 in the t-long direction extension portion 12B, and the protrusion portion 12 is formed by the provision of the ridges for the support. The portion 1 1 has a slanting wall 1 4, and a receiving portion 1 4 A for receiving a pressing member to be described later is formed on the upper surface of the slanting wall 1 4 -9 - 200832848. The pair of contact portions 13 which are suspended from both side edges of the flat portion 1 2 A are inclined so as to be narrowed toward each other as they are downward, and have a throat portion 13A near the lower end, and are pinched by the throat portion 13A. The pin-shaped center conductor of the counterpart connector is in elastic contact. The dielectric material 20 is produced by molding an electrical insulating material such as a resin, and integrally includes a cylindrical main body portion 2 1 and a pressing member 22 that is raised by an outer peripheral portion of a portion of the main body portion 21 in the circumferential direction. a shoulder portion 23 extending in a radial direction from an upper edge of the main body portion 21 in a diameter direction opposite to the pressing member 22, and a radial direction extending from the shoulder portion 2 on both sides of the shoulder portion 23 3 longer wrists 24. The main body portion 21 has a substantially cylindrical outer circumference, and a terminal accommodating portion 25 is formed in the center so as to penetrate the upper and lower portions, and the accommodating portion is provided as a space for accommodating a lower portion of the support surface 12 of the center terminal 1 ,. It is roughly in the inner corner of the cylinder. The pressing member 22 is outside the terminal accommodating portion 25 having a substantially four-corner inner cylindrical surface, and is erected by the main body portion 21, and is bendable at a base portion thereof. The vertical height of the pressing member 22 is set such that when the pressing member 22 is bent toward the terminal housing portion 25 at its base portion, the front end portion of the pressing member 22 covers the center terminal 10 and reaches the length of the shoulder portion 23. The pressing member 22 has a plate shape having a thickness in the radial direction of the main body portion 21 and a width in the circumferential direction, and the thin portions 22A are formed on both sides in the width direction, and the thick portion 22B is formed in the middle. The thick portion 22B has a concave surface which is deeper than the both sides in the center in the width direction, and this concave surface is formed as the pressing surface 22B-1. Since the pressing surface 22B-1 is the deepest in the center in the width direction - 10 200832848, the center conductor of the coaxial cable can be guided and held at the normal position as the deepest position. Therefore, the pressing surface is centered at 8-1. The conductor becomes a position restricting portion. The shoulder portion 23 extends in the radial direction of the main body portion 21 at a position opposite to the pressing member 22 in the radial direction. The extension length is a size at which the extension portion 12B of the center terminal 1A can be mounted when the center terminal 10 is disposed in the terminal housing portion 25. The inner wall surface of the arm portion 24 provided on both sides of the shoulder portion 23 is provided with a seat portion 24A which functions as a stopper seat for receiving the thin portion 22A of the pressing member 22. The wrist portion 24 is a coaxial cable that interacts with an outer conductor 30 to be described later to hold the center terminal 10 and is positioned on the shoulder portion 23, and has strength for holding the coaxial cable. The main body portion 21, the shoulder portion 23, and the wrist portion 24 are not the features of the present invention, and may be the same as the conventional structure, and further description thereof will be omitted. The outer conductor 30 accommodating the dielectric material 20 is formed by processing a metal plate, and has a fitting cylindrical portion 3 1 which is rounded into a substantially cylindrical shape and has a gap 3 1 A formed at a portion in the circumferential direction. a holding wrist 32 that extends in parallel with the two sides of the gap 3 1 A; and a side opposite to the gap 3 1 A in the diameter direction, is erected and set by the upper end of the fitting tubular portion 31 The cover portion 33, the fixing portion 34, and the surrounding portion 35. The fitting tubular portion 31 has a protruding seat portion 3 1 B that receives the dielectric material 20 on the inner surface, and an annular locking groove that functions as a locking function when fitted to the outer conductor of the counterpart connector in the vicinity of the lower end of the outer peripheral surface. 3 1 C, the incision groove 3 Δd which imparts elasticity in the diameter-expanding direction to the fitting tubular portion 31 is formed at a plurality of positions in the circumferential direction of the complex -11 - 200832848. The holding arm 32 is in a state in which the wrist portion 24 of the dielectric material 20 is sandwiched by the outside. The holding arm 32 has a front end portion that is bent, and a concave portion 32A through which the cable extends is formed in the bent portion. The lid portion 33 is coupled to the fitting tubular portion 31 via the constricted portion 36, whereby the fitting tubular portion 31 can be flexed by the constricted portion 36, and the fitting tubular portion 31 is covered from above by buckling. . The lid portion 33 has a flat plate portion 33A and two side portions 3 3 B which are bent on both sides thereof, and the flat plate portion 3 3 A is formed on the surface on the side of the side portion 33B by buckling, and is formed by embossing. Section 3 3C. The distance between the inner opposing faces of the two side portions 33B is set to be equal to or larger than the outer diameter of the fitting tubular portion 31. The fixing portion 34 provided to the above-described lid portion 33 has a shape similar to that of the lid portion 33, and has a flat plate portion 34A and a side portion 34B. The fixing portion 34 is formed such that when the lid portion 33 is buckled by the constricted portion 36, the side portion 34B faces the outer side surface of the holding arm 32. Therefore, compared with the two side portions 33B of the lid portion 33, the distance between the two side portions 34B of the fixing portion 34 is somewhat smaller (narrow) than the case of the lid portion 33. The surrounding portion 35 provided in the above-described fixing portion 34 has a shape similar to that of the above-described fixing portion 34, and has a flat plate portion 35A and a side portion 35B. The surrounding portion 35 is located at a position covered by the covering portion of the coaxial cable extending through the concave portion 32A of the holding arm 32 when the lid portion 33 is buckled by the constricted portion 36. Further, each side portion 35B of the surrounding portion 35 is separated into two pieces by the slit 35C, and it is preferable to surround and press the covering portion by caulking the covered portion of the cable. -12- 200832848 The outer conductor 30 itself is not a feature of the present invention, and may be the same as the conventional outer conductor, and further description thereof will be omitted. Next, the assembly and use of the coaxial electrical connector having the center terminal 10, the dielectric 20, and the outer conductor 30 will be described. (1) The center terminal 10 shown in FIG. 1 is housed in the terminal accommodating portion 25 of the dielectric material 20, and the dielectric material 20 is pressed into the fitting cylindrical portion 31 of the outer conductor 30 to complete The connector shown in Figure 2. (2) Next, for the connector completed as shown in Fig. 2, as shown in Fig. 3(A), the outer layer C1, the shield line C2, and the dielectric C3 are sequentially removed at the end of the cable to make the center conductor C4 exposed coaxial cable C. The center conductor C4 is located on the support surface of the connection portion 1 1 of the center terminal 1 ,, and is positioned to cover the hole portion 12A-1. As shown in FIG. 4 in which the state is enlarged, if the center conductor C4 is at the normal position I, even if it is covered by the lid portion 3 and cannot be confirmed from above, it can also pass through when viewed from the lower side of the connector. The hole portion 12A-1 confirms its state. Further, in Fig. 4, the center conductor C4 is offset from the normal position 1 as in the positions II and 111, and it is also known. When it is confirmed that the center conductor C4 is at the normal position I, the dielectric C3 of the cable is placed on the step portion 1 2 B - 2 formed at the end of the extension portion 12B of the center terminal 1A, and is connected to the step The dielectric of the poor portion 20 is on the shoulder 2 3 . The shielding line C 2 and the outer covering c 1 are located on the outer conductor 30 of the outer conductor 30. The outer casing (C) is supported on the support surface 12 of the center bribe 10 in the center conductor C4 of the cable C. The lower pressing member 22 is bent at its base as shown in Fig. 3(B) such that the pressing surface 22B-1 of the pressing member 22 and the center conductor C4 on the supporting surface 12 of the center end-13-200832848 Surface contact is formed (see Fig. 5). In the above-described buckling process, in the case where the pressing member 22 is displaced from the normal position in the width direction thereof, as shown in FIG. 5, the side edge of the thin portion 2 2 A of the pressing member 22 and the center terminal 10 The receiving surface 14A of the inclined wall 14 abuts and is guided to the width direction toward the normal position. (4) Then, the cover portion 33 of the outer conductor 30 is flexed at its base as shown in FIG. 3(C), the upper portion of the connector is covered with the cover portion 33, and the cable pair dielectric is fixed by the fixing portion 34. Fixing is performed to surround and crimp the cable around the portion 35. When the lid portion 3 3 is bent at the base portion thereof, as shown in FIG. 5, the lid portion 33 strongly presses the pressing member 22, and as a result, the pressing surface 22B-1 of the pressing member 22 and the center terminal 10 are pressed. The center conductor C4 is held between the support faces 12 with a clamping pressure. Since the pressing surface 22B-1 has a concave surface, even if the center conductor C4 is slightly displaced from the normal position, the deepest normal position of the pressing surface 22B-1 as the position regulating portion can be guided by the above-described nip pressure. And stay in that position. The fixing portion 34 is bent to hold the holding arm 32 and hold the wrist, and the surrounding portion 35 surrounds the outer covering of the cable C and is pressed and held. Thus, the above-mentioned pinch pressure can be maintained by the holding of the fixing portion 34 and the surrounding portion 35. Since the center conductor C4 is pressed against the ridge 12B-1 of the center terminal 10 by the nip pressure, the cable can be effectively prevented from coming off. Further, by flexing the lid portion 33 of the outer conductor 30, the pressing member 22 of the dielectric material 20 can be flexed together, whereby the buckling work can be completed at one time, and the work can be simplified. The present invention is not limited to the embodiment shown in Figs. 1 to 5, and various modifications can be made. -14- 200832848 For example, the position regulating portion that guides the center conductor to the normal position and is held at the position may be formed not only on the pressing surface of the pressing member but also on the terminal side, or may be formed on the pressing member and the terminal. both sides. 6 shows a concave surface as a position regulating portion on the support surface 12 of the center terminal 10, and FIG. 7 shows that both the pressing surface 22B-1 of the pressing member 22 and the supporting surface 12 of the center terminal 1 are formed as position restricting portions. An example of a concave surface. The concave surface of the position regulating portion does not need to be a curved surface, and may have a tapered surface having two inclined surfaces so as to become deeper toward the axial position of the center conductor in the normal position, or may be a concave portion having a step And forming a trough shape, and the distance between the two edges of the step is smaller than the diameter of the center conductor. In the former, the center conductor can be surely and stably held at the regular position by the tapered surface, and in the latter, the center conductor can be held at the regular position by supporting the outer peripheral surface of the center conductor with both edges. Further, the pressing member may be formed not as a part of the dielectric but as a part of the terminal. In Fig. 8(A), the center terminal 10 has a pressing member 15 which is bent at the end of the support surface 12 on the side of the hole portion 1 2 A-1 and which is extended by the end portion. The pressing surface 15 A of the pressing member 15 has the same concave surface as the pressing surface 22B-1 of the pressing member 22 of the dielectric 20 shown in Fig. 1 . As shown in FIG. 8(B), the center terminal 10 is pressed by the pressing member 22 of the dielectric material 20 when assembled to the connector, and the pressing member 15 of the center terminal 10 is on the pressing surface 15A and the supporting surface thereof. The center conductor is crimped between 12 and the center conductor is guided to a normal position and held in this position. Thus, the pressing member can be formed not only as a part of the dielectric material but also as a part of the terminal, or as a body different from the dielectric -15-200832848 or the terminal. In this case, the pressing member is required to maintain a regular positional relationship with the terminal or dielectric. For example, as shown in Fig. 9, the pressing member 22 is attached to the lid portion 33 of the outer conductor 30, and is integrated with the lid portion 33. The concave surface formed as a position regulating portion of the dielectric material or the terminal has a deep central portion in the width direction, but the concave surface may be formed to continuously or discontinuously extend in the axial direction of the center conductor. Or it can be formed as a point of existence in the form of dots. Further, at least one of the connecting portion of the terminal and the pressing member may have an elastic member that is urged toward the center conductor. In Fig. 10, the connecting portion 11 of the center terminal 1 倾斜 is inclined upward toward the right end side and floats, and has elasticity in the vertical direction. Therefore, when the center conductor is held between the connecting portion 1 1 and the pressing member 22 of the dielectric material 20, the center conductor is sandwiched by the spring force, so that the contact with the terminal 1 变得 can be made sure and stable. The elastic member may be provided on the side of the pressing member 22 described above. For example, as shown by the 2-point lock line of FIG. 10, when the leaf spring or the like 22C is interposed between the pressing member 2 2 and the cover portion 3 3 of the outer conductor 30, when the pressing member 2 2 and the cover portion 3 3 are At the time of the same bending, the pressing member 2 2 receives the spring force from the leaf spring 22C or the like, and the center conductor is sandwiched between the connection portions with the terminals in accordance with the spring force. Further, in the embodiment shown in FIGS. 1 to 3, in order to prevent the center conductor from being detached in the axial direction, a concave-convex portion for improving the terminal support efficiency is provided. However, the uneven portion may be provided on the opposite pressing member side. Can also be set on both sides. In the case of being disposed on both sides, it is preferable to set the position of the convex portions to be offset from each other. The concave portion of the other * is preferably opposed to the one convex portion. [Brief Description of the Drawings] Fig. 1A is a perspective view showing a state before assembly of each member of the coaxial electrical connector of the embodiment. Fig. 2 is a perspective view showing a state before the cable is connected after the connector of Fig. 1 is assembled. 3 is a view sequentially showing a state in which the cable is connected to the connector of FIG. 2, (A) is a perspective view showing a configuration cable, and (B) is a perspective view showing a bending of the pressing member '(C) to show that the cover is flexed The cable connections are in an oblique view in time. Fig. 4 is a cross-sectional view showing a state in which the terminal of Fig. 2 is in a horrible manner. Fig. 5 is a cross-sectional view showing a state in which a cable is held by a pressing surface of a pressing member of the connector of Fig. 1 and a supporting surface of the terminal. Fig. 6 is a cross-sectional view showing a modification of Fig. 5; Fig. 7 is a cross-sectional view showing another modification of Fig. 5; Fig. 8 is a perspective view showing another embodiment, in which (A) only shows a terminal, and (B) shows a connector in which the terminal is assembled. Fig. 9 is a perspective view showing another embodiment of the present invention. Fig. 1 is a cross-sectional view showing another embodiment of the present invention. [Description of main component symbols] 1 〇: Center terminal 1 1 : Connection portion -17- 200832848 12 : Support surface 12A-1 : Hole portion 12B-2 : Rib (concave portion) 1 3 : Contact portion 1 5 : Pressing member 15A : pressing surface (position restricting portion) 2 0 : dielectric 22 : pressing member 22A : thin portion 22B : thick portion 22B-1 : pressing surface (position restricting portion) 3 0 : outer conductor 3 1 : fitting Cylindrical portion 3 3 : cover portion 3 5 : surrounding portion -18-