JP2004055426A

JP2004055426A - Electronic element built-in coaxial connector, and connection method of this connector to coaxial wire

Info

Publication number: JP2004055426A
Application number: JP2002213502A
Authority: JP
Inventors: Tomoki Kawamura; 川村　智樹
Original assignee: Sumitomo Wiring Systems Ltd; AutoNetworks Technologies Ltd; Sumitomo Electric Industries Ltd
Current assignee: Sumitomo Wiring Systems Ltd; AutoNetworks Technologies Ltd; Sumitomo Electric Industries Ltd
Priority date: 2002-07-23
Filing date: 2002-07-23
Publication date: 2004-02-19

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electron element built-in coaxial connector not using solder, superior in productivity and connection reliability, capable of improving electric characteristics. <P>SOLUTION: The electronic element built-in coaxial connector, capable of crimping a coaxial shield conductor by a shied conductor crimping part, is constructed by co-crimping one side of lead wires of an electron element with a lead wire provided with a pair of lead wires and a core wire of a coaxial wire by a co-crimping member, and crimping the other side of the lead wires by the crimping part of the lead wire of an internal conductor terminal, and housing and retaining the inner conductor terminal in a terminal housing chamber of a dielectric body mounted on a shell part of the outer conductor terminal beforehand, By connecting the lead wire, the core wire, and an internal conductor terminal by co-crimping and crimping, productivity is improved, and the cost is reduced because the terminal work can be carried out without using any solder. Further, disconnection or the like at the connecting part does not occur, and the connection reliability is improved, and the connecting part of the lead wire, the core wire, and the internal conductor terminal can be made closer, and the electric characteristics become superior. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、電子素子内蔵同軸コネクタ及びこのコネクタの同軸線への接続方法に関し、更に詳しくは、コネクタ内部に内蔵される電子素子としてリード線付電子素子を用いた電子素子内蔵同軸コネクタ及びこのコネクタの同軸線への接続方法に関するものである。
【０００２】
【従来の技術】
従来、自動車等の分野においては、同軸線の端末部分に接続される同軸コネクタの内部に電子素子が実装されたものとして、図９（ａ）（ｂ）に示すものが知られている。この電子素子同軸コネクタは、いわゆるＪＡＳＯプラグと称されるコネクタの内部に、電子素子として静電容量を補正するコンデンサが直列に実装されたもので、ラジオ用アンテナハーネス等に使用されるものである。
【０００３】
この従来の電子素子内蔵同軸コネクタ１００は、一対のリード線１０１ａ、１０１ｂが相反する方向へ延出されたリード線付コンデンサ１０２と、同軸線１０３のシールド導体１０４に圧着される外導体端子１０５と、リード線付コンデンサ１０２の外周を覆う絶縁チューブ１０６と、リード線付コンデンサ１０２を介して同軸線１０３の芯線１０７と接続される筒形状の内導体端子１０８と、内導体端子１０８を固定するとともにリード線付コンデンサ１０２及び絶縁チューブ１０６が内装されるコネクタハウジング１０９と、コネクタハウジング１０９の後端部に嵌合される嵌合蓋１１０とを備えている。
【０００４】
そしてこの電子素子内蔵同軸コネクタ１００を同軸線１０３の端末部分に接続するにあたっては、先ず、同軸線１０３の端末部分の外被１１１を皮剥して芯線１０７を露出させるとともに、シールド導体１０４を後方に折り返して束ねた後、芯線１０７にリード線付コンデンサ１０２の一方のリード線１０１ｂをハンダ１１２により接続する。次いで、外導体端子１０５のシールド導体圧着部１１３により同軸線１０３のシールド導体１０４部分を圧着するとともに、リード線付コンデンサ１０２の外周に筒状の絶縁チューブ１０６を覆い被せる。
【０００５】
次いで、コネクタハウジング１０９の前端部に内導体端子１０８を固定し、この内導体端子１０８の先端に形成された挿通孔１１４にリード線付コンデンサ１０２の他方のリード線１０１ａを挿通してハンダ１１５により接続し、リード線１０１ａの余った部分を切断する。次いで、予め同軸線１０３に先通ししておいた嵌合蓋１１０をコネクタハウジング１０９の後端部に嵌合する。このようにしてコネクタ内部にリード線付コンデンサ１０２が直列に実装された電子素子内蔵同軸コネクタ１００が得られる。
【０００６】
【発明が解決しようとする課題】
しかしながら、この従来の電子素子内蔵同軸コネクタにおいては、リード線と同軸線の芯線及び内導体端子との接続にハンダを使用しているため、地球環境に優しいものとは言えない。また、リード線付コンデンサを手作業でハンダ付けしなければならないことに加え、ハンダ接続部より前方が自重等により腰折れし易いため、内導体端子先端の挿通孔にリード線を挿通しにくい等、生産性が悪く、生産コストも増加するといった問題があった。そしてまた、ハンダ接続部分に亀裂が発生し易いことから、このハンダ接続部分で断線し易く、接続信頼性に欠けるといった問題があった。更にまた、一般に、リード線の線径は同軸線の芯線より細く、かつ、単線であることに加え、筒形状の内導体端子の内部においてリード線が中空状態となっているため、インピーダンス整合が難しいといった問題があった。
【０００７】
そこで本発明が解決しようとする課題は、ハンダを使用することなく、生産性、接続信頼性に優れ、また、電気的特性の向上を図ることが可能な電子素子内蔵同軸コネクタを提供すること及びこのコネクタの同軸線への接続方法を提供することにある。
【０００８】
【課題を解決するための手段】
この課題を解決するために、本発明に係る請求項１に記載の電子素子内蔵同軸コネクタは、一対のリード線を備えたリード線付電子素子と、このリード線付電子素子の一方のリード線と同軸線の芯線とを共圧着する共圧着部材と、基端に前記リード線付電子素子の他方のリード線を圧着するリード線圧着部を備えるとともに、先端に相手側端子に導通接続される接続部を備えた内導体端子と、この内導体端子の少なくとも先端部分を収容保持する端子収容室が貫通形成された誘電体と、先端にこの誘電体を内装するシェル部を備えるともに、基端に同軸線のシールド導体を圧着するシールド導体圧着部を備え、前記内導体端子、前記リード線付電子素子、前記共圧着部材及び前記同軸線の芯線の外周を覆う外導体端子とを備えたことを要旨とするものである。
【０００９】
上記電子素子内蔵同軸コネクタによれば、リード線付電子素子の一方のリード線と同軸線の芯線とを共圧着部材により共圧着することにより、リード線と同軸線の芯線とを導通接続することができるとともに、リード線付電子素子の他方のリード線を内導体端子のリード線圧着部により圧着することにより、リード線と内導体端子とを導通接続することができるので、ハンダを用いることなく端末加工を行うことが可能となる。そのため、環境に優しく、生産性も向上し、コストの低減も可能となる。また、共圧着及び圧着により接続されているため、接続部分で断線等が生じることがことがなく、接続信頼性に優れる。
【００１０】
また、リード線付電子素子の両リード線、同軸線の芯線及び内導体端子の接続部分を近接させることができるので、接続時に必要な両リード線の長さを短くすることが可能となり、従来の電子素子内蔵同軸コネクタに比較して、インピーダンス整合がとり易く、電気的特性に優れる。
【００１１】
この際、請求項２に記載のように、前記誘電体の前記同軸線側の端面には、前記端子収容室に前記内導体端子が収容保持された際に、この内導体端子に圧着された前記リード線付電子素子の下方部外周を保護する保護部が延設されていることが好ましい。
【００１２】
誘電体の同軸線側の端面にリード線付電子素子の下方部外周を保護する保護部が延設されておれば、同軸線の端末部分に接続された電子素子内蔵同軸コネクタに対して振動が加わった場合であっても、リード線付電子素子と外導体端子との間に位置する保護部により、リード線付電子素子と外導体端子とが接触してしまうことがない。そのため、接続信頼性を一層向上させることが可能となる。
【００１３】
また、請求項３に記載のように、前記共圧着部材は、スプライスバンドであることが好ましい。スプライスバンドによれば、均一で確実な電気的接続を簡易に得ることが可能となる。
【００１４】
また、請求項４に記載のように、前記内導体端子は、その途中部位に一対の圧入刃が設けられ、前記誘電体の端子収容室内に圧入可能とされていることが好ましい。内導体端子の途中部位に一対の圧入刃が設けられておれば、同軸線とリード線付電子素子を介して接続された内導体端子を誘電体の端子収容室内に簡単かつ確実に収容保持させることが可能となる。
【００１５】
また、請求項５に記載のように、前記リード線付電子素子がリード線付コンデンサである場合には、同軸コネクタの内導体端子にコンデンサを実装してアンテナハーネスとしての静電容量の補正が必要な場合に特に有効な電子素子内蔵同軸コネクタを得ることが可能となる。
【００１６】
一方、請求項６に記載のように、本発明に係る電子素子内蔵同軸コネクタの同軸線への接続方法は、請求項１乃至５に記載の電子素子内蔵同軸コネクタの同軸線への接続方法であって、一対のリード線を備えたリード線付電子素子の一方のリード線と同軸線の芯線とを共圧着部材により共圧着するとともに、前記リード線付電子素子の他方のリード線を内導体端子のリード線圧着部により圧着した後、この内導体端子の少なくとも先端部分を、外導体端子のシェル部内に予め装着しておいた誘電体の端子収容室に収容保持させ、前記外導体端子のシールド導体圧着部により同軸線のシールド導体を圧着することを要旨とするものである。
【００１７】
上記電子素子内蔵同軸コネクタの同軸線への接続方法によれば、リード線付電子素子の両リード線、同軸線の芯線及び内導体端子の接続を全て圧着で行うことができ、ハンダ工程を無くすことができるため、同軸線の端末加工を自動化し易く、生産性の向上、コストの低減を図ることが可能となる。
【００１８】
【発明の実施の形態】
以下、本発明の第１実施形態について、図１〜図６を参照して詳細に説明する。尚、以下の説明においては、電子素子内蔵同軸コネクタの相手側コネクタとの嵌合方向を先端側（前方側）とし、その反対方向を基端側（後方側）として説明する。
【００１９】
図１に示すように、本発明の第１実施形態に係る電子素子内蔵同軸コネクタ１０は、リード線１１ａ、１１ｂを備えたリード線付電子素子１２と、リード線１１ａと同軸線１３の芯線１４とを共圧着する共圧着部材１５と、リード線１１ｂを圧着するリード線圧着部１６を備えた内導体端子１７と、内導体端子１７を収容保持する誘電体１８と、誘電体１８を内装し、同軸線１３のシールド導体を圧着するシールド導体圧着部１９を備えた外導体端子２０とを備えている。以下、各構成部材について詳細に説明する。
【００２０】
先ず初めに、本発明に係る電子素子内蔵同軸コネクタ１０が好適に接続される同軸線１３について説明する。図１に示すように、同軸線１３は、銅等からなる素線が複数本撚り合わされた芯線１４と、芯線１４の外周に覆設された絶縁体２１と、銅等からなる素線が編み込まれて形成され、絶縁体２１の外周に覆設されたシールド導体としての編組２２と、編組２２の外周に覆設された外被２３とから構成されており、芯線１４の外周が編組２２で覆われることよって外部から侵入するノイズ等を電磁気的に遮蔽することができるようになっている。
【００２１】
尚、図１においては、同軸線１３の端末部分は、外被２３が所定長さ皮剥されて内部の芯線１４、絶縁体２１及び編組２２が露出された形態とされ、編組２２が後方に反転されている（以下、この状態の同軸線を「端末処理された同軸線」という。）。
【００２２】
次に、リード線付電子素子１２について説明する。図１に示すように、リード線付電子素子１２は、同軸コネクタの電気的特性を種々調節するためのもので、本体部２４と、一対のリード線１１ａ、１１ｂから構成されている。一方のリード線１１ａは同軸線１３側に延出され、他方のリード線１１ｂは内導体端子１７側に延出されている。この種のリード線付電子素子１２としては、具体的には、リード線付コンデンサ、リード線付抵抗、リード線付ダイオード等が挙げられる。例えば、静電容量の調整や耐ノイズに対する性能を付与する場合には、リード線付コンデンサを選択することができる。
【００２３】
次に、共圧着部材１５について説明する。図１に示すように、共圧着部材１５は、黄銅等の導電性を有する板状部材から形成されたもので、リード線付電子素子１２のリード線１１ａと同軸線１３の芯線１４とを共に圧着して両者を電気的に接続するためのものである。このような共圧着部材１５としては、平角で帯状の板状部材や、図２（ａ）に示すように、予め板状部材が加工されて管状形状に形成されたものや、図２（ｂ）に示すように、予め板状部材が加工されてリード線挿入部２５及び芯線挿入部２６が形成されたもの等を好適に用いることができる。より具体的には、スプライスバンド等を好適に用いることができる。
【００２４】
尚、共圧着部材１５の厚みや幅等については、同軸線１３の芯線径やリード線付電子素子１２のリード線径等の組み合わせや、リード線１１ａ、１１ｂと芯線１４の重なり具合等によって種々変更可能なものであり、特に限定されるものではない。また、上記共圧着部材１５の内側面、すなわち、リード線１１ａ及び芯線１４と接触する面側に、セレーション加工が施されていても良い。セレーション加工が施されている場合には、リード線１１ａ及び芯線１４との密着力が高まり、少ない圧着力で強い引き抜き強度が得られ、また、接触面積を広く取ることができ、接触抵抗が小さくなる利点がある。
【００２５】
次に、内導体端子１７について説明する。図１に示すように、内導体端子１７は、導電性を有する板状部材が折り曲げ加工されて一体的に形成されたもので、基端にリード線付電子素子１２のリード線１１ｂを圧着するリード線圧着部１６を備えるとともに、先端に相手側コネクタの相手側端子（図示しない）に導通接続される接続部２７を備えている。
【００２６】
リード線圧着部１６は、二股状の一対の圧着片２８ａ、２８ｂを備えており、この圧着片２８ａ、２８ｂの間にリード線１１ｂを配置して圧着することにより、内導体端子１７とリード線付電子素子１２とを抜き止め状態に導通接続することができるようになっている。
【００２７】
一方、接続部２７は、基底部２９の両側縁に立設された側壁３０ａ、３０ｂから先端方向かつ内側に向かって延設された一対の接触片３１ａ、３１ｂと、基底部２９の最先端に形成された角筒形状の保護枠３２とを備えている。
【００２８】
これら接触片３１ａ、３１ｂは、左右方向に弾性変形可能に形成されており、接触片３１ａ、３１ｂの間に挿入された図略の相手側端子のタブ部と弾性接触して電気信号の受け渡しを行うことができるようになっている。また、保護枠３２は、取扱い時等において接触片３１ａ、３１ｂを保護するためのものである。なお、側壁３０ａ、３０ｂの上端には、後述する誘電体１８の端子収容室３３の内周壁に圧入される一対の圧入刃３４ａ、３４ｂが立設されている。
【００２９】
次に、誘電体１８について説明する。図１に示すように、誘電体１８は、所定の誘電率を有する絶縁性の合成樹脂より略角柱形状に一体的に形成されたもので、内導体端子１７と外導体端子２０との間を絶縁状態に保つためのものである。この誘電体１８の内部には、前後方向に開口する端子収容室３３が貫通形成されており、上述した内導体端子１７をリード線圧着部１６を露出させた状態で収容保持可能とされている。また、誘電体１８の基端側の端面には、下面及び左右側壁の下方部が後方に向かって延設された延設部３５が設けられている。一方、誘電体１８の先端側の端面には、フランジ状の蓋部３６が一体的に設けられており、外導体端子２０のシェル部３７（後述する）内に誘電体１８が内装された際に、シェル部３７の開口端縁に係止可能とされている。
【００３０】
次に、外導体端子２０について説明する。図１に示すように、外導体端子２０は、導電性を有する板状部材が折り曲げ加工されて一体的に形成されたもので、先端に誘電体１８が内装される略角筒状のシェル部３７を備えるとともに、基端に同軸線１３のシールド導体としての編組２２を圧着するシールド導体圧着部１９を備えている。
【００３１】
シールド導体圧着部１９は、二股状の一対の圧着片３８ａ、３８ｂを備えており、この圧着片３８ａ、３８ｂの間に端末処理された同軸線１３が配置された後、圧着することにより、外導体端子２０と同軸線１３とを抜き止め状態に導通接続することができるようになっている。また、シェル部３７とシールド導体圧着部１９との間には、基底部３９の両側縁より側壁４０ａ、４０ｂが立設され、シェル部３７とともに内導体端子１７、リード線付電子素子１２、共圧着部材１５及び同軸線１３の芯線１４の外周を全体的・部分的に覆って外部から侵入するノイズを電磁気的にシールドすることができるようになっている。
【００３２】
なお、側壁４０ａ、４０ｂの上端縁の間は開口部４１とされている。これは予めシェル部３７に内装された誘電体１８の端子収容室３３に、図略の治具等を用いて内導体端子１７を収容するためのスペースを確保するためである。したがって、特に図示はしないが、内導体端子１７を収容保持した後には、この開口部４１を別部材としての蓋部材等を用いて塞いでも構わない。
【００３３】
次に、上記構成を備えた本発明の実施形態に係る電子素子内蔵同軸コネクタ１０の同軸線１３への接続方法について説明する。
【００３４】
先ず初めに、図３に示すように、リード線付電子素子１２のリード線１１ａと端末処理された同軸線１３の芯線１４とを共圧着部材１５により共圧着する。すなわち、共圧着部材１５として平角で帯状の板状部材を用いる場合には、例えば、図略の圧着機のクリンパとアンビルとの間に、リード線１１ａと芯線１４とを近接させて配置し、そこに帯状の板状部材を供給し、クリンプして共圧着すれば良い。共圧着の態様としては、図３に示すように、リード線１１ａと芯線１４とが互いに重なり合った状態でその外周に帯状の板状部材が巻き付けられるようにして共圧着されていても良いし、他にも、図４に示すように、リード線１１ａと芯線１４とが帯状の板状部材により別々に圧着されて全体として共圧着されていても良い。
【００３５】
また、図２（ａ）に示した共圧着部材、すなわち、予め管状形状に形成された共圧着部材を用いる場合には、その管内にリード線１１ａと芯線１４とを共に挿入した状態で外部から力を作用させて圧着すれば良い。尚、この場合、圧着後の外観は、図３に示した形態と同様の形態となる。
【００３６】
他にも、図２（ｂ）に示した共圧着部材、すなわち、予め板状部材によりリード線挿入部２５及び芯線挿入部２６が形成された共圧着部材を用いる場合には、リード線挿入部２５及び芯線挿入部２６にそれぞれリード線１１ａ及び芯線１４を挿入した状態で外部から力を作用させて圧着すれば良い。尚、この場合、圧着後の外観は、図４に示した形態と同様の形態となる。
【００３７】
次いで、リード線付電子素子１２のリード線１１ｂを内導体端子１７のリード線圧着部１６に配置し、図略の圧着機により圧着する。これにより同軸線１３の芯線１４、リード線付電子素子１２及び内導体端子１７が電気的に導通接続された状態となる。なお、上記においては、リード線付電子素子１２のリード線１１ａと同軸線１３の芯線１４との共圧着を行った後に、リード線１１ｂと内導体端子１７とを圧着することとしたが、先にリード線１１ｂと内導体端子１７とを圧着した後、リード線１１ａと同軸線１３の芯線１４との共圧着を行っても良く、その順番は特に限定されるものではない。
【００３８】
一方、図３に示すように、外導体端子２０のシェル部３７の前方側開口から誘電体１８を挿入して、予めシェル部３７内に誘電体１８を装着しておく。
【００３９】
そして図５及び図６に示すように、同軸線１３の芯線１４にリード線付電子素子１２を介して接続された内導体端子１７の先端部分を、誘電体１８の端子収容室３３の後方から挿入していく。すると、内導体端子１７の側壁３０ａ、３０ｂに立設された圧入刃３４ａ、３４ｂにより誘電体１８の端子収容室３３の上壁部分が切り裂かれ、内導体端子１７が端子収容室３３内に強固に収容保持される。この際、内導体端子１７は、リード線圧着部１６が誘電体１８の外部に露出された状態となるまで圧入される。尚、内導体端子１７を端子収容室３３内へ圧入するに当たっては、図略の治具等を用いて、内導体端子１７の側壁３０ａ、３０ｂ等を押圧する等して行うことができるものである。
【００４０】
次いで、外導体端子２０のシールド導体圧着部１９に配置された同軸線１３の編組２２を、圧着片３８ａ、３８ｂにより抜き脱不能に圧着する。以上のようにして電子素子内蔵同軸コネクタ１０の同軸線１３への接続が完了する。
【００４１】
次に、上述した本発明の第１実施形態に係る電子素子内蔵同軸コネクタ及びこのコネクタの同軸線への接続方法の作用効果について説明する。
【００４２】
上記構成を備えた電子素子内蔵同軸コネクタによれば、リード線付電子素子の一方のリード線と同軸線の芯線とを共圧着部材により共圧着することにより、リード線と同軸線の芯線とを導通接続することができるとともに、リード線付電子素子の他方のリード線を内導体端子のリード線圧着部により圧着することにより、リード線と内導体端子とを導通接続することができるので、ハンダを用いることなく端末加工を行うことが可能となる。そのため、環境に優しく、生産性も向上し、コストの低減も可能となる。また、共圧着及び圧着により接続されているため、接続部分で断線等が生じることがことがなく、接続信頼性に優れる。
【００４３】
また、リード線付電子素子の両リード線、同軸線の芯線及び内導体端子の接続部分を近接させることができるので、接続時に必要な両リード線の長さを短くすることが可能となり、従来の電子素子内蔵同軸コネクタに比較して、インピーダンス整合がとり易く、電気的特性に優れたものとなる。
【００４４】
また、内導体端子に一対の圧入刃が設けられているので、同軸線とリード線付電子素子を介して接続された内導体端子を誘電体の端子収容室内に簡単かつ確実に収容保持させることができる。
【００４５】
また、上記電子素子内蔵同軸コネクタの同軸線への接続方法によれば、リード線付電子素子の両リード線、同軸線の芯線及び内導体端子の接続を全て圧着で行うことができ、ハンダ工程を無くすことができるため、同軸線の端末加工を自動化し易く、生産性の向上、コストの低減を図ることができる。
【００４６】
次に、本発明の第２実施形態に係る電子素子内蔵同軸コネクタについて説明する。尚、以下に説明する第２実施形態に係る電子素子内蔵同軸コネクタ５０は、上述した第１実施形態に係る電子素子内蔵同軸コネクタ１０の構成のうち、誘電体１８の構成が異なるのみであるため、その構成の違い及びその構成の違いにより生じる作用効果に言及して説明する。
【００４７】
図７は、本発明の第２実施形態に係る電子素子内蔵同軸コネクタ５０が同軸線１３に接続された状態（外導体端子は省略されている）を示したものであり、図８は、その断面図を示したものである。図７及び図８に示すように、誘電体５１は、内導体端子１７と外導体端子２０との間を絶縁状態に保つためのものである点、誘電体５１の内部に前後方向に開口する端子収容室５２が貫通形成されている点、誘電体５１の先端側の端面にフランジ状の蓋部５３が一体的に設けられて点で上述した誘電体１８とその構成が共通する。
【００４８】
しかしながら、第２実施形態に係る電子素子内蔵同軸コネクタ５０における誘電体５１は、上述した誘電体１８に比べると、延設部３５がより後方に延設されている点で異なっている。すなわち、誘電体５１は、誘電体１８の備える延設部３５の代わりに、端子収容室５２に内導体端子１７が収容保持された際に、この内導体端子１７に圧着されたリード線付電子素子１２の下方部外周を保護することができる長さまで延設された保護部５４を備えている点で誘電体１８と異なっている。
【００４９】
このように誘電体の同軸線側の端面にリード線付電子素子の下方部外周を保護する保護部が延設されておれば、同軸線の端末部分に接続された電子素子内蔵同軸コネクタに対して振動が加わった場合であっても、リード線付電子素子と外導体端子との間に位置する保護部により、リード線付電子素子と外導体端子とが接触してしまうことがない。そのため、接続信頼性を一層向上させることができる。
【００５０】
以上本発明に係る一実施形態について説明したが、本発明は上記実施形態に何ら限定されるものではなく、本発明の趣旨を逸脱しない範囲で種々改変することが可能である。例えば、第１及び第２実施形態に係る電子素子内蔵同軸コネクタおいては、内導体端子として、接続部がいわゆるメス型のものを用いたが、他にも、接続部がタブ状に形成されたいわゆるオス型のものであっても良く、特に限定されるものではない。
【００５１】
【発明の効果】
本発明に係る電子素子内蔵同軸コネクタ及びこのコネクタの同軸線への接続方法によれば、ハンダを使用することなく、生産性、接続信頼性に優れ、更に、電気的特性の向上を図ることが可能な電子素子内蔵同軸コネクタを得ることができる。
【００５２】
そして例えば、この電子素子内蔵同軸コネクタにおけるリード線付電子素子としてリード線付コンデンサを用いた場合には、同軸コネクタの内導体端子にコンデンサを実装してアンテナハーネスとしての静電容量の補正が必要な場合に特に有効な電子素子内蔵同軸コネクタを得ることが可能となる等、その有用性は極めて大きなものと言える。
【図面の簡単な説明】
【図１】本発明の第１実施形態に係る電子素子内蔵同軸コネクタを示した分解斜視図である。
【図２】予め所定形状に形成された共圧着部材を示した外観斜視図である。
【図３】端末処理された同軸線の芯線と内導体端子とがリード線付電子素子を介して接続された状態及び外導体端子に予め誘電体を内装させた状態を示した示した外観斜視図である。
【図４】共圧着部材の他の圧着態様を示した外観斜視図である。
【図５】本発明の第１実施形態に係る電子素子内蔵同軸コネクタが同軸線に接続された状態を示した外観斜視図である。
【図６】図５の断面図である。
【図７】本発明の第２実施形態に係る電子素子内蔵同軸コネクタ（外導体端子は省略）が同軸線に接続された状態を示した外観斜視図である。
【図８】図７の断面図である。
【図９】従来の電子素子内蔵同軸コネクタを示した図である。
【符号の説明】
１０　　　　電子素子内蔵同軸コネクタ
１１ａ、ｂ　リード線
１２　　　　リード線付電子素子
１３　　　　同軸線
１４　　　　芯線
１５　　　　共圧着部材
１６　　　　リード線圧着部
１７　　　　内導体端子
１８　　　　誘電体
１９　　　　シールド導体圧着部
２０　　　　外導体端子
２２　　　　編組（シールド導体）
２７　　　　接続部
３３　　　　端子収容室
３４ａ、ｂ　圧入刃
３５　　　　延設部
３７　　　　シェル部
５０　　　　電子素子内蔵同軸コネクタ
５１　　　　誘電体
５２　　　　端子収容室
５４　　　　保護部[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a coaxial connector with a built-in electronic element and a method for connecting the connector to a coaxial line. More specifically, the present invention relates to a coaxial connector with a built-in electronic element using an electronic element with a lead wire as an electronic element built into the connector, and this connector In connection with a coaxial cable.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in the field of automobiles and the like, those shown in FIGS. 9A and 9B are known in which an electronic element is mounted inside a coaxial connector connected to a terminal portion of a coaxial line. This electronic element coaxial connector has a so-called JASO plug in which a capacitor for correcting electrostatic capacitance is mounted in series as an electronic element, and is used for a radio antenna harness or the like. .
[0003]
This conventional coaxial connector 100 with a built-in electronic element includes a capacitor 102 with a lead wire having a pair of lead wires 101a and 101b extending in opposite directions, an outer conductor terminal 105 crimped to a shield conductor 104 of a coaxial wire 103. An insulating tube 106 covering the outer periphery of the capacitor 102 with a lead wire, a cylindrical inner conductor terminal 108 connected to the core wire 107 of the coaxial cable 103 via the capacitor 102 with the lead wire, and the inner conductor terminal 108 fixed. A connector housing 109 in which the lead-wired capacitor 102 and the insulating tube 106 are provided, and a fitting lid 110 fitted to the rear end of the connector housing 109 are provided.
[0004]
When connecting the coaxial connector 100 with a built-in electronic element to the terminal portion of the coaxial cable 103, first, the sheath 111 of the terminal portion of the coaxial cable 103 is peeled to expose the core wire 107, and the shield conductor 104 is moved backward. After being folded and bundled, one lead wire 101 b of the capacitor with lead wire 102 is connected to the core wire 107 by the solder 112. Next, the shield conductor 104 of the coaxial cable 103 is crimped by the shield conductor crimping portion 113 of the outer conductor terminal 105, and the outer periphery of the capacitor 102 with a lead wire is covered with a cylindrical insulating tube 106.
[0005]
Next, the inner conductor terminal 108 is fixed to the front end of the connector housing 109, and the other lead wire 101 a of the capacitor with lead wire 102 is inserted into the insertion hole 114 formed at the tip of the inner conductor terminal 108, and the solder 115 is used. Connection is made, and the surplus portion of the lead wire 101a is cut. Next, the fitting lid 110 that has been passed through the coaxial cable 103 in advance is fitted to the rear end of the connector housing 109. Thus, a coaxial connector 100 with a built-in electronic element in which the capacitor 102 with the lead wire is mounted in series inside the connector is obtained.
[0006]
[Problems to be solved by the invention]
However, in this conventional coaxial connector with a built-in electronic element, since solder is used for connecting the lead wire to the core wire of the coaxial wire and the inner conductor terminal, it cannot be said to be environmentally friendly. Also, in addition to having to manually solder the capacitor with lead wire, the front of the solder connection is easily broken by its own weight, etc., so it is difficult to insert the lead wire into the insertion hole at the tip of the inner conductor terminal. There is a problem that productivity is poor and production cost increases. Further, since cracks are easily generated in the solder connection portion, there is a problem that the solder connection portion is easily broken and connection reliability is lacking. Furthermore, generally, the wire diameter of the lead wire is thinner than the core wire of the coaxial wire, and in addition to being a single wire, the lead wire is hollow inside the cylindrical inner conductor terminal, so that impedance matching is achieved. There was a problem that it was difficult.
[0007]
Therefore, the problem to be solved by the present invention is to provide a coaxial connector with a built-in electronic element capable of improving productivity and connection reliability without using solder, and improving electrical characteristics. An object of the present invention is to provide a method for connecting the connector to a coaxial line.
[0008]
[Means for Solving the Problems]
In order to solve this problem, a coaxial connector with a built-in electronic element according to claim 1 of the present invention provides an electronic element with a lead having a pair of leads, and one lead of the electronic element with a lead. And a lead wire crimping part for crimping the other lead wire of the electronic element with a lead wire at the base end, and a leading end electrically connected to a mating terminal. An inner conductor terminal provided with a connection portion, a dielectric body in which a terminal accommodating chamber for accommodating and holding at least a distal end portion of the inner conductor terminal is formed; The inner conductor terminal, the electronic element with a lead wire, the co-crimp member, and an outer conductor terminal that covers the outer periphery of the core wire of the coaxial line. The abstract and Is shall.
[0009]
According to the above-described coaxial connector with built-in electronic element, one lead wire of the electronic element with a lead wire and the core wire of the coaxial wire are co-pressed with the co-compression bonding member to electrically connect the lead wire and the core wire of the coaxial wire. And by crimping the other lead wire of the electronic device with lead wires with the lead wire crimping part of the inner conductor terminal, the lead wire and the inner conductor terminal can be electrically connected, without using solder. Terminal processing can be performed. Therefore, it is environmentally friendly, the productivity is improved, and the cost can be reduced. Further, since the connection is made by co-compression and crimping, there is no disconnection or the like at the connection portion, and the connection reliability is excellent.
[0010]
In addition, since the connecting portions of the two lead wires of the electronic device with lead wires, the core wire of the coaxial wire, and the inner conductor terminal can be brought close to each other, it is possible to shorten the length of both lead wires required for connection, and Compared to the coaxial connector with a built-in electronic element, the impedance matching can be easily achieved and the electrical characteristics are excellent.
[0011]
At this time, as described in claim 2, when the inner conductor terminal is housed and held in the terminal accommodating chamber, the end surface of the dielectric on the coaxial line side is crimped to the inner conductor terminal. It is preferable that a protection portion for protecting an outer periphery of a lower portion of the electronic device with lead wires extends.
[0012]
If a protective portion for protecting the outer periphery of the lower part of the electronic device with a lead wire is provided on the end face of the dielectric on the coaxial line side, vibration will occur to the electronic device built-in coaxial connector connected to the terminal portion of the coaxial line. Even if it is added, the protective element located between the electronic device with lead wire and the outer conductor terminal does not cause the electronic device with lead wire to contact with the outer conductor terminal. Therefore, connection reliability can be further improved.
[0013]
Further, as described in claim 3, the co-compression bonding member is preferably a splice band. According to the splice band, it is possible to easily obtain a uniform and reliable electrical connection.
[0014]
Preferably, the inner conductor terminal is provided with a pair of press-fitting blades at an intermediate portion thereof, so that the inner conductor terminal can be press-fitted into the terminal receiving chamber of the dielectric. If a pair of press-fitting blades are provided in the middle of the inner conductor terminal, the inner conductor terminal connected via the coaxial wire and the electronic device with the lead wire can be easily and reliably housed and held in the dielectric terminal housing. It becomes possible.
[0015]
Further, when the electronic element with a lead wire is a capacitor with a lead wire, a capacitor is mounted on the inner conductor terminal of the coaxial connector to correct the capacitance as an antenna harness. A particularly effective coaxial connector with a built-in electronic element can be obtained when necessary.
[0016]
On the other hand, as described in claim 6, the method for connecting the coaxial connector with built-in electronic element to the coaxial line according to the present invention is the same as the method for connecting the coaxial connector with built-in electronic element to coaxial line according to claims 1 to 5. A lead wire of the electronic device with a pair of leads and a core wire of a coaxial wire are co-pressed with a co-pressing member, and the other lead wire of the electronic device with a lead is connected to an inner conductor. After crimping by the lead wire crimping portion of the terminal, at least the tip portion of the inner conductor terminal is housed and held in a dielectric terminal accommodating chamber previously mounted in the shell portion of the outer conductor terminal, The gist of the present invention is to crimp a coaxial wire shield conductor by a shield conductor crimping portion.
[0017]
According to the method of connecting the coaxial connector with a built-in electronic element to the coaxial line, the connection of both the lead wire of the electronic element with the lead wire, the core wire of the coaxial line and the inner conductor terminal can all be performed by crimping, eliminating the soldering step. Therefore, it is easy to automate the processing of the terminal of the coaxial cable, and it is possible to improve the productivity and reduce the cost.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS. In the following description, the fitting direction of the coaxial connector with a built-in electronic element with the mating connector is referred to as the front end (front side), and the opposite direction is referred to as the base end (rear side).
[0019]
As shown in FIG. 1, a coaxial connector 10 with a built-in electronic element according to a first embodiment of the present invention includes an electronic element 12 having leads 11 a and 11 b, and a core 14 of a lead 11 a and a coaxial line 13. A co-compression member 15 for co-compression bonding, an inner conductor terminal 17 having a lead wire crimping portion 16 for crimping the lead wire 11b, a dielectric 18 for housing and holding the inner conductor terminal 17, and a dielectric 18 are provided. And an outer conductor terminal 20 having a shield conductor crimping portion 19 for crimping the shield conductor of the coaxial cable 13. Hereinafter, each component will be described in detail.
[0020]
First, the coaxial cable 13 to which the electronic device built-in coaxial connector 10 according to the present invention is suitably connected will be described. As shown in FIG. 1, the coaxial cable 13 includes a core wire 14 in which a plurality of strands made of copper or the like are twisted, an insulator 21 provided on the outer periphery of the core wire 14, and a strand made of copper or the like. A braid 22 as a shield conductor covered on the outer periphery of the insulator 21 and a jacket 23 covered on the outer periphery of the braid 22, and the outer periphery of the core wire 14 is formed by the braid 22. By being covered, noise or the like that enters from the outside can be electromagnetically shielded.
[0021]
In FIG. 1, the terminal portion of the coaxial cable 13 has a form in which the jacket 23 is peeled off by a predetermined length and the inner core wire 14, the insulator 21, and the braid 22 are exposed, and the braid 22 is turned backward. (Hereinafter, the coaxial line in this state is referred to as “terminal-processed coaxial line”).
[0022]
Next, the electronic device with leads 12 will be described. As shown in FIG. 1, the electronic device with leads 12 is for adjusting various electrical characteristics of the coaxial connector, and includes a main body 24 and a pair of leads 11a and 11b. One lead wire 11a extends to the coaxial wire 13 side, and the other lead wire 11b extends to the inner conductor terminal 17 side. Specific examples of this type of electronic device 12 with a lead include a capacitor with a lead, a resistor with a lead, a diode with a lead, and the like. For example, a capacitor with a lead wire can be selected in order to adjust the capacitance or to provide performance against noise.
[0023]
Next, the co-compression member 15 will be described. As shown in FIG. 1, the co-compression bonding member 15 is formed of a conductive plate-like member such as brass, and the lead wire 11 a of the electronic device 12 with a lead wire and the core wire 14 of the coaxial cable 13 are both formed. It is for crimping and electrically connecting both. As such a co-compression bonding member 15, a flat rectangular band-shaped plate-shaped member, a plate-shaped member formed by processing a plate-shaped member in advance as shown in FIG. As shown in ()), a member in which a plate-shaped member is processed in advance to form a lead wire insertion portion 25 and a core wire insertion portion 26, or the like can be suitably used. More specifically, a splice band or the like can be suitably used.
[0024]
The thickness, width, and the like of the co-compression bonding member 15 may vary depending on the combination of the core wire diameter of the coaxial wire 13 and the lead wire diameter of the electronic element 12 with a lead wire, the degree of overlap between the lead wires 11a and 11b, and the core wire 14, and the like. It can be changed and is not particularly limited. Further, serration processing may be performed on the inner side surface of the co-compression bonding member 15, that is, on the surface side in contact with the lead wire 11 a and the core wire 14. In the case where serration processing is performed, the contact force between the lead wire 11a and the core wire 14 is increased, a strong pull-out strength is obtained with a small pressing force, a large contact area can be obtained, and a contact resistance is small. There are advantages.
[0025]
Next, the inner conductor terminal 17 will be described. As shown in FIG. 1, the inner conductor terminal 17 is formed by bending a conductive plate-shaped member and integrally forming the inner conductor terminal 17, and crimps a lead wire 11 b of an electronic element 12 with a lead wire to a base end. A lead wire crimping portion 16 is provided, and a connection portion 27 is provided at the end of the lead wire crimping portion 16 for conducting connection to a mating terminal (not shown) of the mating connector.
[0026]
The lead wire crimping portion 16 is provided with a pair of forked crimping pieces 28a and 28b. The lead wire 11b is arranged between the crimping pieces 28a and 28b and crimped to form the inner conductor terminal 17 and the lead wire. The attached electronic element 12 can be electrically connected in a retaining state.
[0027]
On the other hand, the connecting portion 27 includes a pair of contact pieces 31 a and 31 b extending inward from the side walls 30 a and 30 b erected on both side edges of the base portion 29, and a pair of contact pieces 31 a and 31 b at the forefront of the base portion 29. And a protection frame 32 formed in the shape of a rectangular tube.
[0028]
These contact pieces 31a and 31b are formed so as to be elastically deformable in the left-right direction. The contact pieces 31a and 31b are elastically contacted with tabs of a counterpart terminal (not shown) inserted between the contact pieces 31a and 31b to transfer electric signals. Can be done. The protection frame 32 is for protecting the contact pieces 31a and 31b during handling or the like. At the upper ends of the side walls 30a and 30b, a pair of press-fitting blades 34a and 34b that are press-fitted into the inner peripheral wall of the terminal housing 33 of the dielectric 18 described later are provided upright.
[0029]
Next, the dielectric 18 will be described. As shown in FIG. 1, the dielectric 18 is integrally formed in a substantially prismatic shape from an insulating synthetic resin having a predetermined dielectric constant, and a gap between the inner conductor terminal 17 and the outer conductor terminal 20 is provided. This is to keep it insulated. A terminal housing chamber 33 that opens in the front-rear direction is formed through the inside of the dielectric 18 so that the above-described inner conductor terminal 17 can be housed and held with the lead wire crimping portion 16 exposed. . An extension 35 is provided on an end face on the base end side of the dielectric 18, the lower surface and the lower portions of the left and right side walls extending rearward. On the other hand, a flange-shaped lid 36 is integrally provided on the end surface on the distal end side of the dielectric 18, and when the dielectric 18 is mounted inside a shell 37 (described later) of the outer conductor terminal 20. In addition, it can be locked to the opening edge of the shell portion 37.
[0030]
Next, the outer conductor terminal 20 will be described. As shown in FIG. 1, the outer conductor terminal 20 is formed by bending a conductive plate-like member and integrally forming the outer conductor terminal 20. 37, and a shield conductor crimping portion 19 for crimping the braid 22 as a shield conductor of the coaxial cable 13 at the base end.
[0031]
The shield conductor crimping portion 19 is provided with a pair of forked crimping pieces 38a and 38b, and after the coaxial wire 13 having been subjected to the terminal treatment is disposed between the crimping pieces 38a and 38b, the crimping is performed by crimping. The conductor terminal 20 and the coaxial cable 13 can be electrically connected in a retaining state. Further, between the shell portion 37 and the shield conductor crimping portion 19, side walls 40a, 40b are erected from both side edges of the base portion 39, and together with the shell portion 37, the inner conductor terminal 17, the electronic element with lead wire 12, and the The outer periphery of the crimping member 15 and the core wire 14 of the coaxial cable 13 is entirely or partially covered, so that noise that enters from the outside can be electromagnetically shielded.
[0032]
An opening 41 is formed between the upper edges of the side walls 40a and 40b. This is to secure a space for accommodating the inner conductor terminal 17 using a jig or the like in the terminal accommodating chamber 33 of the dielectric material 18 previously housed in the shell portion 37. Therefore, although not particularly shown, after housing and holding the inner conductor terminal 17, the opening 41 may be closed using a lid member or the like as a separate member.
[0033]
Next, a method for connecting the coaxial connector 10 with a built-in electronic element to the coaxial line 13 according to the embodiment of the present invention having the above configuration will be described.
[0034]
First, as shown in FIG. 3, the lead wire 11 a of the electronic element with lead wire 12 and the core wire 14 of the coaxial cable 13 subjected to the terminal treatment are co-compressed by the co-compression member 15. That is, when a flat rectangular band-shaped plate member is used as the co-compression member 15, for example, the lead wire 11a and the core wire 14 are arranged close to each other between a crimper and an anvil of a not-shown crimping machine, A band-like plate-like member may be supplied there, crimped, and co-pressed. As a form of co-compression bonding, as shown in FIG. 3, the lead wire 11a and the core wire 14 may be co-compressed such that a band-shaped plate-like member is wound around the outer periphery thereof in a state where they overlap each other. In addition, as shown in FIG. 4, the lead wire 11a and the core wire 14 may be separately press-bonded by band-shaped plate members and co-pressed as a whole.
[0035]
When a co-compression member shown in FIG. 2A, that is, a co-compression member previously formed in a tubular shape, is used, the lead wire 11a and the core wire 14 are inserted into the tube from the outside. What is necessary is just to apply pressure and to crimp. In this case, the appearance after crimping is the same as that shown in FIG.
[0036]
In addition, when the co-compression bonding member shown in FIG. 2B, that is, the co-compression bonding member in which the lead wire insertion portion 25 and the core wire insertion portion 26 are formed in advance by a plate-like member, is used. What is necessary is just to press-fit by applying force from the outside in the state where the lead wire 11a and the core wire 14 are inserted into the core wire insertion portion 25 and the core wire insertion portion 26, respectively. In this case, the appearance after crimping is the same as that shown in FIG.
[0037]
Next, the lead wire 11b of the electronic element with lead wire 12 is arranged in the lead wire crimping portion 16 of the inner conductor terminal 17, and is crimped by a crimping machine (not shown). As a result, the core wire 14 of the coaxial cable 13, the electronic element with lead wire 12, and the inner conductor terminal 17 are electrically connected to each other. In the above description, after the lead wire 11a of the electronic device with lead wire 12 and the core wire 14 of the coaxial cable 13 are co-pressed, the lead wire 11b and the inner conductor terminal 17 are crimped. After the lead wire 11b and the inner conductor terminal 17 are crimped, the lead wire 11a and the core wire 14 of the coaxial cable 13 may be co-compressed, and the order is not particularly limited.
[0038]
On the other hand, as shown in FIG. 3, the dielectric 18 is inserted from the front opening of the shell 37 of the outer conductor terminal 20, and the dielectric 18 is mounted in the shell 37 in advance.
[0039]
Then, as shown in FIGS. 5 and 6, the distal end portion of the inner conductor terminal 17 connected to the core wire 14 of the coaxial cable 13 via the electronic device 12 with the lead wire is connected to the dielectric 18 from the rear of the terminal accommodating chamber 33. Insert it. Then, the upper wall portion of the terminal accommodating chamber 33 of the dielectric 18 is cut off by the press-fitting blades 34a, 34b erected on the side walls 30a, 30b of the inner conductor terminal 17, and the inner conductor terminal 17 is firmly inserted into the terminal accommodating chamber 33. Is held and held. At this time, the inner conductor terminal 17 is press-fitted until the lead wire crimping portion 16 is exposed outside the dielectric 18. The press-fitting of the inner conductor terminal 17 into the terminal accommodating chamber 33 can be performed by pressing the side walls 30a and 30b of the inner conductor terminal 17 using a jig or the like (not shown). is there.
[0040]
Next, the braid 22 of the coaxial wire 13 arranged in the shield conductor crimping portion 19 of the outer conductor terminal 20 is undetachably crimped by crimping pieces 38a and 38b. The connection of the coaxial connector with built-in electronic element 10 to the coaxial line 13 is completed as described above.
[0041]
Next, the operation and effect of the coaxial connector with a built-in electronic element and the method of connecting the connector to a coaxial line according to the first embodiment of the present invention will be described.
[0042]
According to the coaxial connector with a built-in electronic element having the above configuration, the lead wire and the core wire of the coaxial line are co-pressed with the co-compression member to one of the lead wire of the electronic device with the lead wire and the core wire of the coaxial line. Since the lead wire and the inner conductor terminal can be conductively connected by crimping the other lead wire of the electronic element with a lead wire with the lead wire crimping portion of the inner conductor terminal, soldering can be performed. Terminal processing can be performed without using the terminal. Therefore, it is environmentally friendly, the productivity is improved, and the cost can be reduced. Further, since the connection is made by co-compression and crimping, there is no disconnection or the like at the connection portion, and the connection reliability is excellent.
[0043]
In addition, since the connecting portions of the two lead wires of the electronic device with lead wires, the core wire of the coaxial wire, and the inner conductor terminal can be brought close to each other, it is possible to shorten the length of both lead wires required for connection, and In comparison with the coaxial connector with a built-in electronic element, the impedance matching can be easily achieved and the electrical characteristics are excellent.
[0044]
In addition, since the inner conductor terminal is provided with a pair of press-fitting blades, the inner conductor terminal connected via the coaxial cable and the electronic element with a lead wire can be easily and reliably accommodated and held in the dielectric terminal accommodating chamber. Can be.
[0045]
According to the method of connecting the coaxial connector with a built-in electronic element to the coaxial line, the connection of both the lead wires of the electronic element with lead wires, the core wire of the coaxial line and the inner conductor terminal can all be performed by crimping. , It is easy to automate the processing of the end of the coaxial cable, and it is possible to improve the productivity and reduce the cost.
[0046]
Next, an electronic element built-in coaxial connector according to a second embodiment of the present invention will be described. The coaxial connector 50 with a built-in electronic element according to the second embodiment described below differs from the coaxial connector 10 with a built-in electronic element according to the first embodiment only in the configuration of the dielectric 18. The description will be made with reference to the difference in the configuration and the operation and effect caused by the difference in the configuration.
[0047]
FIG. 7 shows a state in which the coaxial connector 50 with a built-in electronic element according to the second embodiment of the present invention is connected to the coaxial line 13 (the outer conductor terminal is omitted), and FIG. FIG. 3 is a cross-sectional view. As shown in FIGS. 7 and 8, the dielectric 51 is provided to keep the inner conductor terminal 17 and the outer conductor terminal 20 in an insulated state, and opens in the front and rear direction inside the dielectric 51. The configuration is the same as that of the above-described dielectric 18 in that the terminal accommodating chamber 52 is formed therethrough and a flange-like lid 53 is integrally provided on the end face on the distal end side of the dielectric 51.
[0048]
However, the dielectric body 51 of the electronic device built-in coaxial connector 50 according to the second embodiment is different from the above-described dielectric body 18 in that the extending portion 35 extends further rearward. That is, when the inner conductor terminal 17 is accommodated and held in the terminal accommodating chamber 52 instead of the extending portion 35 of the dielectric 18, the electronic member with a lead wire crimped to the inner conductor terminal 17 is used. It differs from the dielectric 18 in that it has a protection portion 54 extended to a length that can protect the outer periphery of the lower part of the element 12.
[0049]
If the protection portion for protecting the outer periphery of the lower portion of the electronic device with the lead wire is extended on the end face of the dielectric on the coaxial line side, the electronic device built-in coaxial connector connected to the terminal portion of the coaxial line is provided. Even when vibration is applied, the protective element positioned between the electronic device with lead wire and the outer conductor terminal does not cause the electronic device with lead wire to contact the outer conductor terminal. Therefore, connection reliability can be further improved.
[0050]
Although one embodiment according to the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, in the coaxial connector with a built-in electronic element according to the first and second embodiments, a so-called female connector is used as the inner conductor terminal, but in addition, the connector is formed in a tab shape. It may be a so-called male type, and is not particularly limited.
[0051]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to the coaxial connector with a built-in electronic element and the method of connecting this connector to a coaxial line according to the present invention, it is possible to improve productivity and connection reliability without using solder, and to further improve electrical characteristics. A possible coaxial connector with a built-in electronic element can be obtained.
[0052]
If, for example, a capacitor with a lead wire is used as the electronic element with a lead wire in this coaxial connector with a built-in electronic element, it is necessary to mount a capacitor on the inner conductor terminal of the coaxial connector and correct the capacitance as an antenna harness. In such a case, a particularly effective coaxial connector with a built-in electronic element can be obtained.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a coaxial connector with a built-in electronic element according to a first embodiment of the present invention.
FIG. 2 is an external perspective view showing a co-compression member formed in a predetermined shape in advance.
FIG. 3 is an external perspective view showing a state in which a core wire of a coaxial cable subjected to terminal processing and an inner conductor terminal are connected via an electronic element with a lead wire and a state in which a dielectric has been preliminarily provided in the outer conductor terminal. FIG.
FIG. 4 is an external perspective view showing another crimping mode of the co-compression bonding member.
FIG. 5 is an external perspective view showing a state where the coaxial connector with a built-in electronic element according to the first embodiment of the present invention is connected to a coaxial cable.
FIG. 6 is a sectional view of FIG. 5;
FIG. 7 is an external perspective view showing a state in which a coaxial connector with a built-in electronic element (an outer conductor terminal is omitted) according to a second embodiment of the present invention is connected to a coaxial line.
FIG. 8 is a sectional view of FIG. 7;
FIG. 9 is a view showing a conventional coaxial connector with a built-in electronic element.
[Explanation of symbols]
10 Coaxial connector with built-in electronic element
11a, b Lead wire
12. Electronic device with lead wire
13 Coaxial cable
14 core wire
15 Co-compression members
16 Lead wire crimping part
17 Inner conductor terminal
18 Dielectric
19 Shield conductor crimping part
20 outer conductor terminals
22 Braid (Shield conductor)
27 Connection
33 Terminal accommodation room
34a, b Press-fitting blade
35 Extension
37 Shell part
50 Coaxial connector with built-in electronic element
51 Dielectric
52 Terminal accommodation room
54 Protector

Claims

A lead-wired electronic element having a pair of lead wires, a co-crimp member for co-crimping one lead wire of the lead-wired electronic element and a core wire of a coaxial wire, and a base end of the electronic element with a lead wire. An inner conductor terminal having a lead wire crimping portion for crimping the other lead wire and having a connection portion at the tip end electrically connected to a counterpart terminal; and a terminal accommodating chamber for accommodating and holding at least a tip portion of the inner conductor terminal. And a shell portion for housing the dielectric material at the distal end, and a shield conductor crimping portion for crimping a coaxial shield conductor at the base end, the inner conductor terminal and the lead wire. An electronic element built-in coaxial connector comprising: an electronic element; an outer conductor terminal that covers an outer periphery of a core wire of the co-bonding member and the coaxial line;

When the inner conductor terminal is housed and held in the terminal accommodating chamber on the end surface of the dielectric on the coaxial line side, the outer periphery of the lower part of the electronic device with the lead wire crimped to the inner conductor terminal is protected. The coaxial connector with a built-in electronic element according to claim 1, wherein a protection portion that extends is extended.

The electronic device built-in connector according to claim 1, wherein the co-compression bonding member is a splice band.

4. The coaxial connector with a built-in electronic element according to claim 1, wherein the inner conductor terminal is provided with a pair of press-fitting blades at an intermediate portion thereof, and is press-fittable into the dielectric terminal accommodating chamber. 5. .

5. The coaxial connector with a built-in electronic element according to claim 1, wherein the electronic element with a lead is a capacitor with a lead.

A method for connecting the coaxial connector with a built-in electronic element to a coaxial line according to any one of claims 1 to 5, wherein one of the leads of the electronic element with a pair of leads and the core of the coaxial line are co-pressed. After co-crimping with a member, and crimping the other lead wire of the electronic element with a lead wire by a lead wire crimping portion of the inner conductor terminal, at least a tip portion of the inner conductor terminal is placed in the shell portion of the outer conductor terminal in advance. Connecting the coaxial connector with a built-in electronic element to the coaxial wire, wherein the shield conductor of the coaxial cable is crimped by the shield conductor crimping portion of the outer conductor terminal. Method.