201140618 六、發明說明： 【發明所屬之技術領域】 本發明關於複數條同軸纜線連接於中間基板之同軸纜線 線束。 【先前技術】 近年來，由於筆記型電腦、行動電話、小型視訊攝影機等 的普及，除了要求此等電子機器的小型化、輕量化之外，也要 求高速化、高畫質化。所以，於機器本體與液晶顯示部的連接 或機器內的配線等使用極細的同軸纜線。又，從配線的容易性 考量，採用使複數條同軸纜線集合一體化的同軸纜線線束。如 此的同軸纜線線束的末端部分係以銲接等的導電接著而連接 固定於連接器端子或基板等。 作爲用以連接機器間或機器內的纜線，眾所周知有於平衡 傳送用平坦狀纜線構件的端部具有連接器部的構造（例如，參 照專利文獻1)，此纜線構件是成對的信號傳路路徑與接地部交 互並列而能平衡傳送的構造，且，係成對之信號端子部與接地 端子部露出於端部的構造。連接器部安裝於該平衡傳送用平坦 狀纜線構件的端部，而將該平衡傳送用平坦狀纜線構件的信號 端子部本身與接地端子部本身設爲端子部。 又，也有使極細的複數條同軸纜線集合一體化的線束形狀 者，此種纜線中，有複數條同軸纜線與絕緣纜線並列配置，且 前述複數條同軸纜線的外部導體及前述絕緣纜線之中心導體 導電接著於共用的接地條者（例如，參照專利文獻2) 〔先行技術文獻〕 -4- 201140618 〔專利文獻〕 〔專利文獻1〕 日本特開2006— 73367號4 〔專利文獻2〕日本特開2007-280772號 【發明內容】 〔發明所欲解決的課題〕 謀求電子機器的小型化及輕量化且進 此，處理的資訊量也會增大。所以，將複數 束形狀並透過中間基板連接於機器的基板珣 善線束之末端的傳送特性或雜訊特性等電档 在此，本發明的目的在於提供一種確保 高密度安裝的同軸纜線線束。 〔用以解決課題的手段〕 關於能解決上述課題之本發明的同軸賴 數條同軸纜線及中間基板的同軸纜線線束， 具有中心導體、配設於前述中心導體外周的 於前述內部絕緣體外周的外部導體、及配設 周的外覆層，該中間基板連接前述複數條同 側，該同軸纜線線束的特徵在於：前述中間 信號線部及複數個接地線部；在連接於前述 側的一端，前述信號線部及前述接地線部以 連接於前述同軸纜線側之一端的前述信號 部的間隔係與在另一端的前述等間隔P不房 之數量設爲m，前述接地線部之數量設爲r 數量設爲c時，貝U「mSc<m+n」：前述信 >報 公報 -步的高性能，藉 條同軸纜線設成線 ，乃期望進一步改 特性。 良好的電性特性且 丨線線束，係具備複 該複數條同軸纜線 內部絕緣體、配設 於前述外部導體外 軸纜線之至少一端 基板配列有複數個 同軸纜線側的相反 等間隔P配列；在 線部及前述接地線 ί ;將前述信號線部 1，前述同軸纜線之 號線部分別連接於 201140618 一條前述同軸纜線的中心導體；前述接地線部之全部或至少一 者未連接於前述中心導體而是連接於全部或至少一者前述外 部導體；連接於前述信號線部的前述同軸纜線中至少一者的直 徑大於前述間隔p大。 本發明的同軸纜線線束，其中較佳爲至少一個前述信號線 部或前述接地線部的兩端部係以在前述中間基板之寬度方向 上成爲不同位置的方式彎曲。 又，本發明的同軸纜線線束，其中以與前述已彎曲之信號 線部鄰接的接地線部係配合前述已彎曲之信號線部的彎曲來 變更寬度尺寸爲佳。 又，本發明的同軸纜線線束，其中較佳爲前述同軸纜線的 前述信號線部及前述接地線部之一端部係均等配列，前述同軸 纜線之中心導體連接於前述信號線部，前述同軸纜線之外部導 體或中心導體連接於前述接地線部之另一端，前述同軸纜線之 配列間距係均等，且前述同軸纜線的配列間距比前述信號線部 及前述接地線部的配列間距還大。 又，本發明的同軸纜線線束，其中較佳爲複數個前述接地 線部連結，此連結部分成爲與前述同軸纜線之外部導體連接的 連接部。 又，本發明的同軸纜線線束，其中以全部的同軸纜線的外 部導體連接於前述連接部爲佳。 〔發明效果〕 依據本發明，一個以上的接地線部未連接於同軸纜線之中 心導體而是連接於外部導體，所以，能減少用以將中心導體連 201140618 接並接地於接地線部之同軸纜線的條數。又，在連接於同軸纜 線之側，信號線部及接地線部的間隔係與在相反側的等間隔P 不同，同軸纜線之數量比信號線部與接地線部的總數還少，所 以，能使用直徑比成爲等間隔p的一側還大的同軸纜線，連接 於信號線部之同軸纜線中至少一者的直徑大於間隔P。藉由減 少同軸纜線的條數，以連接於信號線部的同軸纜線而言，能使 用中心導體爲大徑者，能大幅地改善傳送特性或雜訊特性等電 性特性。即，依據本發明，能作成確保良好的電性特性且高密 度安裝的同軸纜線線束，對於伴隨著電子機器之進一步的高性 能化所致之資訊量的增大，能良好地因應。 【實施方式】 以下說明本發明之同軸纜線線束之實施形態的例子。又， 本發明之同軸纜線線束可採用兩端側分別連接於中間基板的 情形，或僅一端側連接於中間基板而另一端側附帶連接器的情 形等各式各樣的形態，惟在此是針對一端側連接於中間基板的 構造作說明。 如第1圖所示，構成同軸纜線線束的同軸纜線11具有中 心導體12、配設於中心導體12外周的內部絕緣體13、配設於 內部絕緣體13外周的外部導體14、及配設於外部導體14外周 之絕緣性的外覆層15，並將此等配設成同軸狀而構成。 本發明不論同軸纜線1 1的粗細度。例如能使用依據 AWG(America Wire Gauge)之規格所定的AWG28〜46的纜線。 例如，將間距設爲0.5mm時，能使用AWG28〜32的同軸纜線 11。將間距設爲0.3mm時，能使用AWG42的同軸纜線11 » 201140618 其次’說明使用同軸纜線11的同軸纜線線束。（第1例） 如第2圖所示，構成同軸纜線線束10之同軸纜線11的端部已 作末端處理，從前端側中心導線1 2、內部絕緣體1 3及外部導 體14分別依序階段地露出既定長度。如此般地已作末端處理 之複數條同軸纜線11係連接於中間基板21。同軸纜線11係以 其端部易連接於中間基板21的方式作成配列成平面狀的集合 體，而端部以外也可加以捆束。 中間基板21具有連接面31，複數條同軸纜線11連接於此 連接面3 1。此中間基板2 1係由例如具有金屬箔等配線圖案的 可撓性基板或硬質基板構成。 於連接面31，構成複數個帶狀的配線圖案之複數個信號線 部3 2及複數個接地線部3 3係沿中間基板2 1的寬度方向交互 地形成。信號線部32及接地線部33的前端部成爲接點32a、 33a。這些接點32a、33a係以既定等間隔的並列間距P配置。 配置於中間基板2 1的一側部側（第2圖的下側）的接地線部 33，係以朝向中間基板21之連接方向後端側（連接同軸纜線之 側（在第2圖中爲右側））延伸’且在超過信號線部32與中心導 體12連接的點後彎曲而朝向配線圖案之排列方向延伸的方式 形成。此朝向配線圖案之排列方向延伸的部分成爲連接部 3 3b。配置於中間基板21之一側部側（在第2圖中爲下側）的同 軸纜線11a的外部導體Η連接於此接地線部33的連接部33b。 未連接於外部導體14之其他接地線部33係銲接於同軸纜 線1 1的中心導體12。中心導體12連接於接地線部33的同軸 纜線1 1具有作爲接地線的功能。另一方面，個別的信號線部 201140618 32係銲接於同軸纜線11的中心導體12，這些線部具有用以傳 送信號的功能。將信號線部32的條數設爲m，將接地線部33 的條數設爲η’將同軸纜線11、lla的條數設爲C2時，則「m Sc<m+n」的關係成立。 如此般地’配置於中間基板2 1之一側部（在第2圖中爲最 下側）的接地線部3 3未連接於同軸纜線1 1的中心導體1 2，而 是連接於配置在中間基板21之相同一側部之同軸纜線ila的 外部導體14，所以，可省略連接於配置在中間基板21之一側 部（在第2圖中爲最下側）之接地線部33之份量的同軸纜線 11’而能減少同軸纜線11的條數。藉此，能將構成同軸纜線 線束10之同軸纜線11之全部或其中一者以上的直徑設成較 大。 例如，在全部的接地線及信號線分別連接於同軸纜線之中 心導體的情況下’必須有與全部的接地線及信號線相同數量的 同軸纜線，以構成「c=m+n」的關係本發明中同軸纜線的條 數比上述情況少，可按條數減少的程度，將同軸纜線1 1之全 部或其中一者以上的中心導體的直徑設成較大。 本實施形態中，配置於中間基板21之一側部的同軸纜線 lla’可使用其中心導體12的直徑比其他同軸纜線π之中心 導體12的直徑還大，且全體的外徑亦爲大直徑者。 此情形下，一旦將其他同軸纜線1 1之並列間距設成與信 號線部32及接地線部33相同的並列間距時，配置於中間基板 21之一側部的同軸纜線lla的中心導體12不會配置成與所對 應的信號線部3 2相同直線狀。所以，配置於中間基板2丨之一 201140618 側部之大直徑的同軸纜線1 1 a ’係藉由彎曲其中心導體1 2而配 置連接於其前端部對應的信號線部32。即，於中間基板21中， 連接同軸纜線1 1、1 1 a側的信號線部3 2及接地線部3 3的配列 間距係與相反側之等間隔的並列間距P不同。 又’信號線部32或接地線部33與中心導體12的連接亦 可不是利用銲料，而是利用導電性接著劑來進行。 各同軸纜線11、11a的外部導體14可安裝接地條38。配 置於中間基板2 1之一側部（第2圖中的最下側）側的接地線部 33係連接於同軸纜線11a的外部導體14，而且透過藉接地條 38導通之其他同軸纜線11的外部導體14在另一端側接地。 又’配置於中間基板21之一側部側的接地線部33以外的各接 地線部33係在已連接之同軸纜線11之中心導體12的另一端 側接地。 中間基板2 1係藉由從其前端側（第2圖的左側）插入而連接 於設置在電子機器等之電路基板之連接器的插座 (receptacle)。藉此，中間基板21的接點32a、33a導通接觸於 插座側的端子，而與設置有插座之電路基板側的配線導通。 又，亦可作成於此中間基板21之前端側安裝連接器並與 設置在電子機器等之電路基板的連接器連接之構成。又，朝向 電路基板的連接方向亦可爲與電路基板之面正交的方向或沿 著電路基板之面的方向之任一者。 又，同軸纜線線束10亦可爲中間基板21上的同軸纜線11 之連接位置的配列係沿著同軸纜線11之長度方向的L型構造 (參照第3圖（a))。或，亦可爲中間基板21上的同軸纜線11之 -10- 201140618 連接位置的配列係與同軸纜線11之長度方向1£&的 (參照第3圖（b))。 依據本實施形態，由於接地線部33中的—個未連接於同 軸纜線11的中心導體12，而是連接於一個同軸纜線lla的外 部導體1 4，所以，能減少用以將中心導體1 2連接並接地於接 地線部33之同軸纜線11、lla的條數。藉由減少同軸纜線11 的條數，以連接於信號線部3 2的同軸纜線Π、1 1 a而言’能 使用中心導體12爲大直徑者，能改善傳送特性或雜訊特性等 電性特性。 例如，將一條同軸纜線11 a的直徑作成粗大的情況下’若 是將不粗大的同軸纜線11的直徑W設爲間距P以下（WSP)’ 則能使作成粗大的同軸纜線lla之直徑Wa大於間距P(Wa> P)。 又，由於中間基板21之接地線部3 3中至少一者連接於同 軸纜線11、lla的外部導體14，並透過其外部導體14接地， 所以，回饋電流路徑成爲小的迴路，而能使電性特性變佳。即， 能確保良好的電性特性且高密度安裝的同軸纜線線束10,對於 伴隨著電子機器之進一步的高性能化所造成資訊量的增大，能 良好地因應。 又，本實施形態，係一個接地線部33未連接同軸纜線iia 的中心導體12,而是連接於一條同軸纜線lla的外部導體14, 惟未連接於中心導體1 2而連接於外部導體1 4之接地線部3 3 的條數及將接地線部33連接於外部導體14之同軸纜線1 1的 數量亦可爲一條以上。 又，未連接中心導體12而連接於外部導體14之接地線部 -11 - 201140618 33及此接地線部33連接於外部導體14的同軸纜線11，均不 限定於中間基板2 1之一側部者》 又，爲了使各同軸纜線11整齊排列來固定以及爲了外部 導體1 4之接地電位的均一化，以設置接地條3 8爲佳。倘若即 便無此接地條38，同軸纜線11也能良好地固定的話，也可無 此接地條3 8。 其次，說明本發明之其他形態例。（第2例）第4圖所示的 例子中，係設成任一信號線部32及接地線部33的兩端部在中 間基板2 1的寬度方向爲不同位置。 在此種配置中，信號線部32及接地線部33係在與中心導 體12的連接處和接點（第4圖中爲左端）32a、33a之間彎曲。又， 連接於同軸纜線1 1 a之外部導體1 4的接地線部3 3係配合其相 鄰之信號線部32的彎曲來變更寬度尺寸。 此第2例中’使信號線部32及接地線部33的配線圖案在 中途彎曲或改變配線圖案的寬度尺寸，藉此不用改變接點 32a、33a的間距P’而於包含大直徑的同軸纜線ua之全部的 同軸纜線11中’能在不將其中心導體12彎曲的情況下連接於 信號線部3 2或接地線部3 3。 依據此同軸纜線線束10，可不需要於中心導體12連接時 的彎曲作業，能容易進行將同軸纜線11與中間基板12連接的 作業。又，在使各同軸纜線1 1例如均等地大直徑化的情況下， 不用改變接點3 2 a、3 3 a的間距P即能使同軸纜線丨丨的間距均 等。 (第3例）第5圖所示的例子是第4圖所示之例子的變形 -12- 201140618 例，且是將各同軸纜線1 1的直徑作成粗大的例子。此第3例 的情形也是在中途彎曲信號線部32及接地線部33的配線圖 案’藉此不用改變接點32a、33a的間距P，而於全部的同軸纜 線11中’能在不彎曲其中心導體1 2的情況下連接於信號線部 3 2或接地線部3 3。 此構造之同軸纜線線束10的情況也可不需要於中心導體 12連接時的彎曲作業，能容易地進行將同軸纜線11與中間基 板12連接的作業。又，例如藉由使各同軸纜線11均等地大直 徑化，能謀求中心導體1 2的大直徑化所致之電性特性的改善。 (第4例）第6圖所示的例子爲，將各接地線部33以朝中間 基板2 1的後端（第6圖之右）延伸的方式形成，而且以分別朝側 方（中間基板的寬度方向）延伸的方式形成連接部33b。接地線 部33比信號線部32還長。使各同軸纜線11的外部導體14連 接於這些接地線部33之個別的連接部33b。接地線部33未與 接地線用的同軸纜線11連接，而係透過信號線用的同軸纜線 11的外部導體14接地。當利用接地條38連接全部的外部導體 14時，則各接地線用的同軸纜線11透過全部的外部導體14與 同軸纜線側的接地電路接地，能將各接地線部33的電位予以 均等化。 依據此構造的同軸纜線線束1 0，能減少同軸纜線11的條 數，能謀求連接於信號線部32之同軸纜線11之中心導體12 的大直徑化所致之電性特性的改善。 (第5例）第7圖所示的例子爲，將各接地線部3 3形成朝中 間基板2 1的後端（第7圖之右）側延伸，而且使在後端形成朝側 -13- 201140618 方（中間基板的寬度方向）延伸之連接部33b連結而構成一體連 接部33c。使各同軸纜線11的外部導體14連接於此一體連接 部 33c。 在此構造之同軸纜線線束10中，接地線部33未與接地線 用的同軸纜線連接，而是透過信號線用之同軸纜線11的外部 導體14來接地。能減少同軸纜線11的條數，能謀求以連接於 信號線部32之同軸纜線11之中心導體12的大直徑化所致之 電性特性的改善。又，若藉著銲料等將各外部導體14連接於 —體連接部33c，即使不使用接地條38，也能使各接地線部33 的電位均等化。 (第6例）第8圖所示的例子爲，將各接地線部33形成朝向 中間基板21的後端（第8圖之右）側延伸，而且使在後端形成朝 側方（中間基板的寬度方向）延伸之連接部33b按任意的每個單 位條數連結而構成一體連接部3 3c。使各同軸纜線11的外部導 體14連接於此一體連接部33c。 此構造之同軸纜線線束10中，接地線部33不與接地線用 的同軸纜線連接，而是透過信號線用之同軸纜線Π的外部導 體14來接地。能減少同軸纜線11的條數，能謀求連接於信號 線部32之同軸纜線11之中心導體12的大直徑化所致之電性 特性的改善。又，此情形下，藉著上焊以將各外部導體14連 接於一體連接部3 3 c的話，即使是不使用接地條3 8 ’也能使各 接地線部3 3的電位於每一單位條數均等化。 (第7例）第9圖所示的例子是表示信號線部32彼此鄰接的 構造。又，將各接地線部33形成朝向中間基板21的後端（第9 -14- 201140618 圖之右）延伸，而且使在後端朝向側方（中間基板的寬度方向） 延伸的連接部33b連結而構成一體連接部33c，使各同軸纜線 11的外部導體14連接於此一體連接部33c。在以未夾著接地 線部33而鄰接的信號線部32進行差動傳送.的情況下，能使用 此配線。 依據此構造的同軸纜線線束10，接地線部33不與接地線 用的同軸纜線連接，而是透過信號線用之同軸纜線11的外部 導體1 4來接地。 此情況下，能減少同軸纜線1 1的條數，能謀求連接於信 號線部3 2之同軸纜線1 1之中心導體1 2的大直徑化所致之電 性特性的改善。又，若藉著銲料將各外部導體14連接於一體 連接部33c，即使不使用接地條38，也能謀求各接地線部33 的電位均等化。 【圖式簡單說明】 第1圖係使用於本發明之同軸纜線線束之同軸纜線的剖面 圖。 第2圖顯示本發明之同軸纜線線束（第1例）之一端側的俯 視圖。 第3圖顯示本發明之同軸纜線線束之中間基板之同軸纜線 之配列的示意圖。 第4圖顯示本發明之同軸纜線線束（第2例）之一端側的俯 視圖。 第5圖顯示本發明之同軸纜線線束（第3例）之一端側的俯 視圖。 -15- 201140618 第6圖顯示本發明之同軸纜線線束（第4例）之一端側的俯 視圖。 第7圖顯示本發明之同軸纜線線束（第5例）之一端側的俯 視圖。 第8圖顯示本發明之同軸纜線線束（第6例）之一端側的俯 視圖。 第9圖顯示本發明之同軸纜線線束（第7例）之一端側的俯 視圖。 【主要元件符號說明】 10 同軸纜線線束 11' 11a 同軸纜線 12 中心導體 13 內部絕緣體 14 外部導體 15 外覆層 21 中間基板 31 連接面 32 信號線部 32a 、 33a 接點 33 接地線部 33b 連接部 33c 一體連接部（連接部） P 並列間距（等間隔） 38 接地條 16 -201140618 VI. Description of the Invention: [Technical Field] The present invention relates to a coaxial cable harness in which a plurality of coaxial cables are connected to an intermediate substrate. [Prior Art] In recent years, in addition to the miniaturization and weight reduction of such electronic devices, high-speed and high-quality images are required for the spread of notebook computers, mobile phones, and small video cameras. Therefore, a very thin coaxial cable is used for connection between the main body of the machine and the liquid crystal display unit or wiring in the machine. Further, in consideration of the easiness of wiring, a coaxial cable harness in which a plurality of coaxial cables are integrated is used. The end portion of the coaxial cable harness is connected and fixed to a connector terminal or a substrate by conduction or the like. As a cable for connecting the machine room or the inside of the machine, it is known that the end portion of the flat cable member for balanced transfer has a connector portion (for example, refer to Patent Document 1), and the cable members are paired. The signal transmission path and the ground portion are alternately arranged to balance the transmission structure, and the signal terminal portion and the ground terminal portion are exposed to the end portion. The connector portion is attached to the end portion of the balanced cable member, and the signal terminal portion itself of the balanced transmission flat cable member and the ground terminal portion itself are referred to as terminal portions. Further, in the case of a wire harness shape in which a plurality of extremely small coaxial cables are integrated, a plurality of coaxial cables are arranged in parallel with the insulated cable, and the outer conductors of the plurality of coaxial cables and the aforementioned The center conductor of the insulated cable is electrically connected to the common grounding strip (for example, refer to Patent Document 2) [Prior Art Document] -4- 201140618 [Patent Document] [Patent Document 1] Japanese Patent Laid-Open No. 2006-73367 No. 4 [Patent [Problem to be Solved by the Invention] The size and weight of an electronic device are reduced, and the amount of information to be processed is also increased. Therefore, it is an object of the present invention to provide a coaxial cable harness which ensures high-density mounting by connecting a plurality of bundle shapes and connecting the intermediate substrate to the substrate of the machine to transmit characteristics or noise characteristics at the end of the bundle. [Means for Solving the Problem] The coaxial cable harness of the coaxial cable and the intermediate substrate of the present invention capable of solving the above-described problems has a center conductor and an outer circumference of the inner insulator disposed on the outer circumference of the center conductor The outer conductor and the outer cover layer are disposed, and the intermediate substrate is connected to the same side of the plurality of wires, and the coaxial cable harness is characterized by: the intermediate signal line portion and the plurality of ground lines; and is connected to the side In one end, the signal line portion and the ground line portion are connected to the one end of the coaxial cable side, and the number of the gaps between the signal line portion and the other end of the coaxial line is not m, and the ground line portion is When the number is set to r, the number is set to c, and the U "mSc<m+n": the high performance of the above-mentioned letter is reported, and the coaxial cable is set as a line, and it is desired to further change the characteristics. A good electrical property and a twisted wire harness having a plurality of coaxial coaxial cable internal insulators disposed on at least one end of the outer conductor outer-axis cable and a plurality of opposite coaxial P-sides arranged on a plurality of coaxial cables The line portion and the grounding line ί; the signal line portion 1 and the line portion of the coaxial cable are respectively connected to the center conductor of the 201140618 one of the coaxial cables; and all or at least one of the ground line portions is not connected to The center conductor is connected to all or at least one of the outer conductors; at least one of the coaxial cables connected to the signal line portion has a larger diameter than the interval p. In the coaxial cable harness of the present invention, it is preferable that at least one of the signal line portions or both end portions of the ground line portion is curved so as to have different positions in the width direction of the intermediate substrate. Further, in the coaxial cable harness of the present invention, it is preferable that the width of the curved signal line portion is matched with the ground line portion adjacent to the bent signal line portion. Further, in the coaxial cable harness of the present invention, preferably, the signal line portion of the coaxial cable and one end portion of the ground line portion are evenly arranged, and a center conductor of the coaxial cable is connected to the signal line portion. The outer conductor or the center conductor of the coaxial cable is connected to the other end of the grounding line portion, the arrangement pitch of the coaxial cable is equal, and the arrangement pitch of the coaxial cable is smaller than the arrangement pitch of the signal line portion and the ground line portion. Still big. Further, in the coaxial cable harness of the present invention, preferably, the plurality of grounding wire portions are connected, and the connecting portion is a connecting portion that is connected to an outer conductor of the coaxial cable. Further, in the coaxial cable harness of the present invention, it is preferable that the outer conductor of all the coaxial cables is connected to the connecting portion. [Effect of the Invention] According to the present invention, since one or more grounding wire portions are not connected to the center conductor of the coaxial cable but are connected to the external conductor, the coaxiality for connecting the center conductor to the 201140618 and grounding to the grounding wire portion can be reduced. The number of cables. Further, on the side connected to the coaxial cable, the interval between the signal line portion and the ground line portion is different from the interval P on the opposite side, and the number of coaxial cables is smaller than the total number of the signal line portion and the ground line portion. A coaxial cable having a diameter larger than a side which is equal to the interval p can be used, and at least one of the coaxial cables connected to the signal line portion has a diameter larger than the interval P. By reducing the number of coaxial cables, the coaxial cable connected to the signal line portion can be used with a large diameter of the center conductor, and the electrical characteristics such as transmission characteristics and noise characteristics can be greatly improved. In other words, according to the present invention, it is possible to provide a coaxial cable harness which can be mounted at a high density while ensuring good electrical characteristics, and can cope with an increase in the amount of information accompanying further high performance of the electronic device. [Embodiment] An example of an embodiment of a coaxial cable harness of the present invention will be described below. Further, the coaxial cable harness of the present invention may be connected to the intermediate substrate at both end sides, or may be of various forms such as the case where only one end side is connected to the intermediate substrate and the other end side is provided with a connector. The structure in which one end side is connected to the intermediate substrate will be described. As shown in Fig. 1, the coaxial cable 11 constituting the coaxial cable harness has a center conductor 12, an internal insulator 13 disposed on the outer periphery of the center conductor 12, an outer conductor 14 disposed on the outer periphery of the inner insulator 13, and The insulating outer covering 15 on the outer circumference of the outer conductor 14 is configured to be coaxially arranged. The present invention is not limited to the thickness of the coaxial cable 11. For example, a cable of AWG 28 to 46 according to the specifications of AWG (America Wire Gauge) can be used. For example, when the pitch is set to 0.5 mm, the coaxial cable 11 of AWG 28 to 32 can be used. When the pitch is set to 0.3 mm, the coaxial cable of the AWG 42 can be used. 11 201140618 Next, the coaxial cable harness using the coaxial cable 11 will be described. (First example) As shown in Fig. 2, the end portion of the coaxial cable 11 constituting the coaxial cable harness 10 has been subjected to end treatment, from the front end side center conductor 1, the inner insulator 13 and the outer conductor 14 respectively. The stage is exposed to a predetermined length. A plurality of coaxial cables 11 that have been subjected to end processing in this manner are connected to the intermediate substrate 21. The coaxial cable 11 is formed as a flat assembly in such a manner that its end portions are easily connected to the intermediate substrate 21, and may be bundled in addition to the ends. The intermediate substrate 21 has a connection surface 31 to which a plurality of coaxial cables 11 are connected. The intermediate substrate 21 is made of, for example, a flexible substrate or a rigid substrate having a wiring pattern such as a metal foil. On the connection surface 31, a plurality of signal line portions 3 2 and a plurality of ground line portions 3 3 constituting a plurality of strip-shaped wiring patterns are alternately formed along the width direction of the intermediate substrate 2 1 . The front end portions of the signal line portion 32 and the ground line portion 33 serve as contacts 32a and 33a. These contacts 32a, 33a are arranged at a juxtaposed pitch P at equal intervals. The grounding wire portion 33 disposed on one side of the intermediate substrate 21 (the lower side in FIG. 2) is disposed toward the rear end side of the connection direction of the intermediate substrate 21 (the side connecting the coaxial cable (in FIG. 2) The right side)) extends and is formed so as to be bent beyond the point where the signal line portion 32 is connected to the center conductor 12 and extends toward the arrangement direction of the wiring patterns. This portion extending toward the arrangement direction of the wiring pattern serves as the connecting portion 3 3b. The outer conductor Η of the coaxial cable 11a disposed on the side of one side of the intermediate substrate 21 (the lower side in Fig. 2) is connected to the connecting portion 33b of the grounding wire portion 33. The other ground line portion 33 that is not connected to the outer conductor 14 is soldered to the center conductor 12 of the coaxial cable 11. The coaxial cable 11 to which the center conductor 12 is connected to the ground line portion 33 has a function as a ground line. On the other hand, the individual signal line portions 201140618 32 are soldered to the center conductor 12 of the coaxial cable 11, and these line portions have a function of transmitting signals. When the number of the signal line portions 32 is m, and the number of the ground line portions 33 is η', and the number of the coaxial cables 11 and 11a is C2, the relationship of "m Sc < m + n" Established. In this way, the ground line portion 33 disposed on one side of the intermediate substrate 21 (the lowermost side in FIG. 2) is not connected to the center conductor 12 of the coaxial cable 1 1 but is connected to the configuration. Since the outer conductor 14 of the coaxial cable ila is on the same side of the intermediate substrate 21, the grounding wire portion 33 connected to one side portion (the lowermost side in FIG. 2) disposed on the intermediate substrate 21 can be omitted. The number of coaxial cables 11' can be reduced to reduce the number of coaxial cables 11. Thereby, the diameter of all or more of the coaxial cables 11 constituting the coaxial cable harness 10 can be made larger. For example, when all the ground and signal lines are connected to the center conductor of the coaxial cable, respectively, the same number of coaxial cables as the entire ground and signal lines must be present to form "c=m+n". In the present invention, the number of the coaxial cables is smaller than the above-described case, and the diameter of the center conductor of all or one of the coaxial cables 1 1 can be made larger by the number of strips. In the present embodiment, the coaxial cable 11a' disposed on one side of the intermediate substrate 21 can have a diameter larger than the diameter of the center conductor 12 of the other coaxial cable π, and the entire outer diameter is also Large diameter. In this case, when the parallel pitch of the other coaxial cables 1 1 is set to be the same parallel pitch as the signal line portion 32 and the ground line portion 33, the center conductor of the coaxial cable 11a disposed on one side of the intermediate substrate 21 12 is not arranged in the same straight line as the corresponding signal line portion 32. Therefore, the large-diameter coaxial cable 1 1 a ' disposed on one side of the intermediate substrate 2 2011 201140618 is disposed to be connected to the signal line portion 32 corresponding to the front end portion thereof by bending the center conductor 1 2 . In other words, in the intermediate substrate 21, the arrangement pitch of the signal line portion 32 and the ground line portion 3 3 on the side of the coaxial cable 1 1 and 1 1 a is different from the parallel pitch P at the interval on the opposite side. Further, the connection between the signal line portion 32 or the ground line portion 33 and the center conductor 12 may be performed not by solder but by a conductive adhesive. The outer conductor 14 of each of the coaxial cables 11, 11a can be mounted with a ground bar 38. The grounding wire portion 33 disposed on one side of the intermediate substrate 21 (the lowermost side in FIG. 2) is connected to the outer conductor 14 of the coaxial cable 11a, and is passed through other coaxial cables that are electrically connected by the grounding bar 38. The outer conductor 14 of 11 is grounded at the other end side. Further, each of the grounding line portions 33 other than the grounding wire portion 33 disposed on the side of one side of the intermediate substrate 21 is grounded at the other end side of the center conductor 12 of the connected coaxial cable 11. The intermediate substrate 2 1 is connected to a receptacle of a connector provided on a circuit board of an electronic device or the like by being inserted from the front end side (the left side of Fig. 2). Thereby, the contacts 32a and 33a of the intermediate substrate 21 are electrically connected to the terminals on the socket side, and are electrically connected to the wiring on the side of the circuit board on which the socket is provided. Further, a configuration may be adopted in which a connector is attached to the front end side of the intermediate substrate 21 and connected to a connector provided on a circuit board of an electronic device or the like. Further, the direction of connection to the circuit board may be either a direction orthogonal to the surface of the circuit board or a direction along the surface of the circuit board. Further, the coaxial cable harness 10 may be an L-shaped structure in which the connection position of the coaxial cable 11 on the intermediate substrate 21 is along the longitudinal direction of the coaxial cable 11 (see Fig. 3(a)). Alternatively, it may be the alignment of the connection position of the coaxial cable 11 on the intermediate substrate 21 and the longitudinal direction of the coaxial cable 11 (refer to Fig. 3(b)). According to the present embodiment, since one of the grounding wire portions 33 is not connected to the center conductor 12 of the coaxial cable 11, but is connected to the outer conductor 14 of one coaxial cable 11a, the center conductor can be reduced. 1 2 The number of coaxial cables 11, 11a connected and grounded to the ground line portion 33. By reducing the number of the coaxial cables 11, the coaxial cable 连接, 1 1 a connected to the signal line portion 32 can be used as the large diameter of the center conductor 12, and the transmission characteristics or noise characteristics can be improved. Electrical properties. For example, when the diameter of one coaxial cable 11a is made thick, 'If the diameter W of the coaxial cable 11 which is not coarse is set to a pitch P or less (WSP)', the diameter of the thick coaxial cable 11a can be made. Wa is larger than the pitch P (Wa > P). Further, since at least one of the ground line portions 33 of the intermediate substrate 21 is connected to the outer conductor 14 of the coaxial cables 11, 11a and is grounded through the outer conductor 14, the feedback current path becomes a small loop, and The electrical properties are better. In other words, the coaxial cable harness 10 which can ensure high electrical characteristics and is mounted at a high density can be satisfactorily affected by an increase in the amount of information accompanying further improvement in performance of the electronic device. Further, in the present embodiment, one grounding wire portion 33 is not connected to the center conductor 12 of the coaxial cable iia, but is connected to the outer conductor 14 of one coaxial cable 11a, but is not connected to the center conductor 12 and is connected to the outer conductor. The number of the grounding wire portions 3 3 of the 1 4 and the number of the coaxial cables 1 1 connecting the grounding wire portions 33 to the outer conductor 14 may be one or more. Further, the ground line portion -11 - 201140618 33 that is not connected to the center conductor 12 and is connected to the outer conductor 14, and the coaxial cable 11 to which the ground line portion 33 is connected to the outer conductor 14 are not limited to one side of the intermediate substrate 2 1 . Further, in order to fix the coaxial cables 11 in order and to uniformize the ground potential of the outer conductors 14, it is preferable to provide the ground strips 38. If the grounding strip 38 is not present and the coaxial cable 11 is well fixed, the grounding strip 38 may be absent. Next, other examples of the invention will be described. (Example 2) In the example shown in Fig. 4, both end portions of any of the signal line portion 32 and the ground line portion 33 are at different positions in the width direction of the intermediate substrate 2 1 . In this arrangement, the signal line portion 32 and the ground line portion 33 are bent between the connection with the center conductor 12 and the contact (left end in Fig. 4) 32a, 33a. Further, the grounding wire portion 3 3 connected to the outer conductor 14 of the coaxial cable 1 1 a is changed in width by matching the bending of the adjacent signal line portion 32. In the second example, the wiring pattern of the signal line portion 32 and the ground line portion 33 is bent or changed in the middle of the width pattern of the wiring pattern, whereby the coaxial line including the large diameter is not changed without changing the pitch P' of the contacts 32a, 33a. The coaxial cable 11 of all of the cables ua can be connected to the signal line portion 32 or the ground line portion 33 without bending the center conductor 12. According to this coaxial cable harness 10, it is possible to easily perform the work of connecting the coaxial cable 11 and the intermediate substrate 12 without bending the center conductor 12 when it is connected. Further, when the coaxial cables 1 1 are, for example, uniformly enlarged in diameter, the pitch of the coaxial cables 均 can be made uniform without changing the pitch P of the contacts 3 2 a and 3 3 a. (Example 3) The example shown in Fig. 5 is an example of the modification -12 to 201140618 of the example shown in Fig. 4, and is an example in which the diameter of each coaxial cable 11 is made thick. In the case of the third example, the wiring pattern of the signal line portion 32 and the ground line portion 33 is bent in the middle, whereby the pitch P of the contacts 32a, 33a is not changed, and the whole coaxial cable 11 can be bent. In the case of the center conductor 12, it is connected to the signal line portion 32 or the ground line portion 33. In the case of the coaxial cable harness 10 of this configuration, the bending work when the center conductor 12 is connected is not required, and the operation of connecting the coaxial cable 11 to the intermediate substrate 12 can be easily performed. Further, for example, by making each of the coaxial cables 11 relatively large in diameter, it is possible to improve the electrical characteristics of the center conductor 12 by increasing the diameter. (Fourth example) The example shown in Fig. 6 is such that each of the grounding wire portions 33 is formed to extend toward the rear end of the intermediate substrate 21 (the right side of Fig. 6), and is directed to the side (the intermediate substrate). The connecting portion 33b is formed in a manner of extending in the width direction. The ground line portion 33 is longer than the signal line portion 32. The outer conductors 14 of the respective coaxial cables 11 are connected to the individual connection portions 33b of the ground line portions 33. The grounding wire portion 33 is not connected to the coaxial cable 11 for the grounding wire, but is grounded to the outer conductor 14 of the coaxial cable 11 for transmitting the signal wire. When all the outer conductors 14 are connected by the grounding strips 38, the coaxial cables 11 for the respective grounding wires are grounded through the grounding circuits on the coaxial cable side through all the outer conductors 14, and the potentials of the respective grounding wire portions 33 can be equalized. Chemical. According to the coaxial cable harness 10 of this configuration, the number of the coaxial cables 11 can be reduced, and the improvement of the electrical characteristics due to the increase in the diameter of the center conductor 12 of the coaxial cable 11 connected to the signal line portion 32 can be achieved. . (Example 5) The example shown in Fig. 7 is such that each of the grounding wire portions 3 3 is formed to extend toward the rear end (the right side of Fig. 7) of the intermediate substrate 21, and is formed to face the side at the rear end-13. - 201140618 The connecting portion 33b extending in the square (the width direction of the intermediate substrate) is coupled to each other to constitute an integral connecting portion 33c. The outer conductor 14 of each coaxial cable 11 is connected to the integral connecting portion 33c. In the coaxial cable harness 10 of this configuration, the grounding wire portion 33 is not connected to the coaxial cable for the grounding wire, but is grounded through the external conductor 14 of the coaxial cable 11 for the signal cable. The number of the coaxial cables 11 can be reduced, and the electrical characteristics of the center conductor 12 connected to the coaxial cable 11 of the signal line portion 32 can be improved. Further, when the external conductors 14 are connected to the body connecting portion 33c by solder or the like, the potential of each of the grounding wire portions 33 can be equalized without using the grounding strips 38. (Example 6) The example shown in Fig. 8 is such that each of the grounding wire portions 33 is formed to extend toward the rear end (the right side of Fig. 8) of the intermediate substrate 21, and is formed to be laterally formed at the rear end (intermediate substrate). The connecting portion 33b extending in the width direction is connected in an arbitrary number of units per unit to constitute the integral connecting portion 3 3c. The outer conductor 14 of each coaxial cable 11 is connected to the integral connecting portion 33c. In the coaxial cable harness 10 of this configuration, the grounding wire portion 33 is not connected to the coaxial cable for the grounding wire, but is grounded through the external conductor 14 of the coaxial cable for the signal wire. The number of the coaxial cables 11 can be reduced, and the electrical characteristics of the center conductor 12 connected to the coaxial cable 11 of the signal line portion 32 can be improved. Further, in this case, by the upper welding to connect the outer conductors 14 to the integral connecting portion 3 3 c, even if the grounding strips 38' are not used, the electric power of each of the grounding portions 3 3 can be located in each unit. The number of articles is equalized. (Example 7) The example shown in Fig. 9 is a structure in which the signal line portions 32 are adjacent to each other. Further, each of the grounding wire portions 33 is formed to extend toward the rear end of the intermediate substrate 21 (the right side of the ninth, and the right side of the intermediate substrate), and the connecting portion 33b extending toward the side (the width direction of the intermediate substrate) is connected. The integral connecting portion 33c is formed such that the outer conductor 14 of each coaxial cable 11 is connected to the integral connecting portion 33c. When the signal line portion 32 adjacent to the ground line portion 33 is not differentially transferred, the wiring can be used. According to the coaxial cable harness 10 of this configuration, the grounding wire portion 33 is not connected to the coaxial cable for the grounding wire, but is grounded through the external conductor 14 of the coaxial cable 11 for the signal cable. In this case, the number of the coaxial cables 1 1 can be reduced, and the improvement in electrical characteristics due to the increase in the diameter of the center conductor 1 2 of the coaxial cable 1 1 connected to the signal line portion 3 2 can be achieved. Further, when the external conductors 14 are connected to the integral connecting portion 33c by solder, even if the grounding strip 38 is not used, the potential of each of the grounding wire portions 33 can be equalized. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing a coaxial cable used in the coaxial cable harness of the present invention. Fig. 2 is a plan view showing one end side of the coaxial cable harness (first example) of the present invention. Fig. 3 is a view showing the arrangement of coaxial cables of the intermediate substrate of the coaxial cable harness of the present invention. Fig. 4 is a plan view showing one end side of the coaxial cable harness (second example) of the present invention. Fig. 5 is a plan view showing one end side of the coaxial cable harness (third example) of the present invention. -15- 201140618 Fig. 6 is a plan view showing one end side of the coaxial cable harness (fourth example) of the present invention. Fig. 7 is a plan view showing one end side of the coaxial cable harness (the fifth example) of the present invention. Fig. 8 is a plan view showing one end side of the coaxial cable harness (the sixth example) of the present invention. Fig. 9 is a plan view showing one end side of the coaxial cable harness (the seventh example) of the present invention. [Main component symbol description] 10 Coaxial cable harness 11' 11a Coaxial cable 12 Center conductor 13 Internal insulator 14 External conductor 15 Overlay 21 Intermediate substrate 31 Connection surface 32 Signal line portion 32a, 33a Contact 33 Ground line portion 33b Connecting portion 33c One-piece connecting portion (connecting portion) P Parallel spacing (equal spacing) 38 Grounding strip 16 -