JP3994634B2

JP3994634B2 - Coaxial connector plug

Info

Publication number: JP3994634B2
Application number: JP2000157269A
Authority: JP
Inventors: 雅基藤本
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 2000-05-26
Filing date: 2000-05-26
Publication date: 2007-10-24
Anticipated expiration: 2020-05-26
Also published as: JP2001338733A

Description

【０００１】
【発明の属する技術分野】
本発明は、同軸コネクタプラグに関するものである。
【０００２】
【従来の技術】
携帯電話機を自動車に持ち込んで使用する際、携帯電話機と嵌合して運転中においても携帯電話機を持たずに通話できるようにしたハンズフリーキットや携帯電話機を固定する装置が提供されている。図１６はハンズフリーキットのような装置Ａと携帯電話機Ｂとを示しており、装置Ａは筐体１の上面に携帯電話機Ｂを載置する載置部１Ａを設け、この載置部１Ａに携帯電話機Ｂの裏部を載置することで装着固定できるようなっている。また携帯電話機Ｂを載置部１Ａに載置固定すると載置部１Ａに設けた同軸コネクタ２と携帯電話機Ｂの裏部に設けたレセプタクル３とが嵌合接続され、同軸コネクタ２の嵌合接続によりレセプタクル３内では携帯電話機Ｂ側の無線通信部のアンテナ接続部と携帯電話機Ｂ側のアンテナとの間を切り離すと同時にアンテナ接続部を同軸コネクタ２側に接続する回路を構成し、自動車側に設けたアンテナに同軸コネクタ２に接続された同軸ケーブルＣを介して無線通信部のアンテナ接続部を接続することができるようになっている。
【０００３】
図１７は従来使用されている同軸コネクタ２とレセプタクル３との嵌合接続前の状態を示しており、この従来例の同軸コネクタ２はレセプタクル３に嵌合される同軸プラグ部４と、同軸ケーブルＣを同軸プラグ部４の同軸ポスト５に接続するためのケーブル接続部６と、同軸コネクタ２を筐体１に取り付けるための取付部７とを備えている。
【０００４】
取付部７は一端で同軸プラグ部４の外部導体９’に固定され、他端で筐体１に固定された支持部材８に固定された外形が円錐台形状のコイルばね１０を備えるとともに、筐体１の外側に突出する同軸プラグ部４の先部の軸方向変位を制限するために、同軸プラグ部４の取付部７に対する接合端付近に取り付けた環状の部材１１を備えてなり、コイルばね１０を筐体１に形成した取付孔部１２内に収納するとともに、部材１１を取付孔部１２の開口の周辺の筐体１内側面に当接することで、同軸プラグ部４を軸方向及び径方向に変位可能に保持している。尚６５は埃などが取付孔部１２に入るのを防ぐためのフィルム体である。
【０００５】
同軸プラグ部４は中心に上記の同軸ポスト５を内装した誘電体１３とこの誘電体１３を内装した上記外部導体９’とからなる。
【０００６】
ケーブル接続部６は同軸ケーブルＣの誘電体１９の中心に内装された導体２０を収納するための貫通孔２１を有する筒体２２を備え、この筒体２２の外面に同軸ケーブルＣの外被導体２３を収納するようになっている。この外被導体２３は金属環体２４の可塑変形により筒体２２に絞り付けられている。またケーブル接続部６は筒体２２と一体となって筒体２２と直交し同軸プラグ部４の軸方向に延びた通路２５を有するとともに上記貫通孔２１に連結されている導電性ケース部２６を備え、この導電性ケース部２６に上記同軸プラグ部４の端部を嵌合固定し、導電性ケース部２６内に導入された同軸ケーブルＣの導体２０の先端と同軸ポスト５の端部とを半田付けなどにより電気的に接続している。
【０００７】
このように構成された同軸コネクタ２を装着した装置Ａの筐体１の載置台１Ａに携帯電話機Ｂを定位置に載置しようとした場合、携帯電話機Ｂの裏部に設けたレセプタクル３の外部電極体の表面に、底部から表面開口に向けて徐々に内径が拡径するように形成した穴部１４に同軸コネクタ２の同軸プラグ部４の先部が嵌まり、このとき携帯電話機Ｂを載置台１Ａ側に押し付けようとする力により同軸プラグ部４の先部が穴部１４のテーパ面に接触するが、コイルばね１０により軸方向及び径方向に同軸プラグ部４が揺動するため、同軸コネクタ２の衝撃を吸収して損傷の危険を低減することができるのである。
【０００８】
そして同軸プラグ部４の先部が穴部１４の中心底部に設けた嵌合凹部１５に嵌合すると、その底面に露出した可動接点体１６の先端を同軸ポスト５の先端が押すことで可動接点体１６を軸方向に動かしてその可動接点体１６の後端で更に可動ばね板１７を動かし、可動ばね板１７の可動接点１７ａを固定端子１８の接点面から開離させる。可動ばね板１７は携帯電話機Ｂの無線通信部のアンテナ接続部に、固定端子１８は携帯電話機Ｂのアンテナに接続されているため、上記開離によりアンテナが切り離されるとともに無線通信部のアンテナ接続部が可動ばね板１７，可動接点体１６を介して同軸プラグ部４の同軸ポスト５に接続されることで、同軸ケーブルＣを介して自動車側のアンテナに接続されることになる。
【０００９】
【発明が解決しようとする課題】
ところで上記の従来例の同軸コネクタプラグ２は略円錐台形状のコイルばね１０によって軸方向及び径方向のフローティングを行っているが、このような従来例の構成ではコイルばね１０を径方向に撓ませた時にコイルばね１０が捩れるように変形するため、過度な負荷が加わった場合にコイルばね１０が塑性変形し、初期の位置に戻らなくなる恐れがあった。
【００１０】
本発明は、上記の点に鑑みて為されたもので、その目的とするところは、軸方向のみの弾性にて径方向のセンタリングが可能で、しかも弾性を付与するコイルばねが径方向に捩れることがなく、軸方向及び径方向へフローティングさせることができる構造を実現した同軸コネクタプラグを提供することにある。
【００１１】
【課題を解決するための手段】
上記目的を達成するために、請求項１の発明では、レセプタクルに先端部を嵌合接続する同軸プラグ部と、両端面に開口部を有し、両端の開口部より突出させるように同軸プラグ部を収納配置するハウジングと、該ハウジング内に位置する上記同軸プラグ部の中間外周部に設けられたセンタリング部材と、該センタリング部材の基部底面を径方向に摺動自在に支持するとともに上記ハウジング内に上記同軸プラグ部の軸方向に移動自在に収納された支持台と、該支持台と上記ハウジング底面との間に配設されるとともに、上記支持台を貫挿した上記同軸プラグ部が軸方向に貫挿せるコイルばねとで構成され、上記コイルばねにより上記同軸プラグ部の先端部方向に向けて軸方向に支持台を付勢したものであって、上記同軸プラグ部の先端部が上記レセプタクルに対して嵌合接続する際及び嵌合接続状態から非嵌合接続状態に戻る際に、上記センタリング部材が径方向に移動したときに、上記センタリング部材において上記ハウジングと摺接する面と上記ハウジングにおいて上記センタリング部材と摺接する面の少なくとも一方の形状を、非嵌合接続状態に戻る際に上記ハウジングの上記開口部に上記センタリング部材が嵌まって上記同軸プラグ部が上記開口部にセンタリングされるように形成したことを特徴とする。
【００１２】
請求項２の発明では、請求項１の発明において、上記センタリング部材を上記同軸プラグ部と一体に設け、上記同軸プラグ部の先端部側に対応する面を平坦面とし、この平坦面に対応する上記ハウジングの開口部周辺の面を、該開口部を中心としたすり鉢状の凹面としたことを特徴とする。
【００１３】
請求項３の発明では、請求項１の発明において、上記センタリング部材を上記同軸プラグ部と一体に設け、上記同軸プラグ部の先端部側に対応する面部を先端部方向に突出させて上記同軸プラグ部を中心とする円錐状に形成したことを特徴とする。
【００１４】
請求項４の発明は、請求項３の発明において、上記センタリング部材の基部周部に上記センタリング部材が嵌まり込む上記ハウジングの開口部の径よりも大きな鍔部を突出形成して成ることを特徴とする。
【００１５】
請求項５の発明は、請求項１の発明において、上記センタリング部材を上記同軸プラグ部と一体に設けられ、上記同軸プラグ部の先端部側に対応する面部を先端部方向に突出させて該同軸プラグ部を中心とする多角錐状に形成したことを特徴とする。
【００１６】
請求項６の発明は、請求項２〜５の何れかの発明において、上記同軸プラグ部の先端部が突出する上記ハウジングの開口部のハウジングの内側に位置する開口内縁にＲ面を形成したことを特徴とする。
【００１７】
請求項７の発明は、請求項１〜６の何れかの発明において、上記センタリング部材及び上記同軸プラグ部の先端部が突出する開口部を形成しているハウジング部位を金属で形成したことを特徴とする。
【００１８】
請求項８の発明は、レセプタクルに先端部を嵌合接続する同軸プラグ部と、両端面に開口部を有し、両端の開口部より突出させるように同軸プラグ部を収納配置するハウジングと、該ハウジング内に位置する上記同軸プラグ部の外周部に設けられたセンタリング部材と、センタリング部の基部に一体に設けられ径方向に移動しないようにハウジングに収納された支持台と、該支持台と上記ハウジング底面との間に配設されるとともに、上記支持台を貫挿した上記同軸プラグ部が軸方向に貫挿せる上記コイルばねとで構成され、上記コイルばねにより上記同軸プラグ部の先端部方向に向けて軸方向に支持台を付勢したものであって、上記同軸プラグ部の先端部が上記レセプタクルに対して嵌合接続する際及び嵌合接続状態から非嵌合接続状態に戻る際に、上記センタリング部材が径方向の移動したときに、上記センタリング部材において上記ハウジングと摺接する面と上記ハウジングにおいて上記センタリング部材と摺接する面の少なくとも一方の形状を、非嵌合接続状態に戻る際に上記ハウジングの上記開口部に上記センタリング部材が嵌まって上記同軸プラグ部が上記開口部にセンタリングされるように形成したことを特徴とする。
【００１９】
【発明の実施の形態】
以下本発明を実施形態により説明する。
（実施形態１）
図１は例えば自動車側に配置されるハンズフリーキットのような装置Ａの筐体１側に設けられる本実施形態の同軸コネクタプラグ２とこれに対応する携帯電話機Ｂの筐体裏部に設けられたレセプタクル３の断面構造を示している。
【００２０】
本実施形態の同軸コネクタプラグ２は同軸プラグ部４と、ケーブル接続部６と、取付部７と、センタリング部材たるセンタリングガイド体３０とから構成される。
【００２１】
同軸プラグ部４は従来例と同様に筒状の外部電極体９と、この外部電極体９内に内装された誘電体１３と、この誘電体１３に包まれるように誘電体１３の中心に内装された同軸ポスト５とからなり、外部電極体９の先端部の開口端よりやや内側に誘電体１３の先端面を位置させ、この先端面より突出した同軸ポスト５の先端面の位置を外部電極体９の先端面と同一位置としてある。また外部電極体９の先端部には等間隔に図２に示すように４カ所割溝２７を形成してある。
【００２２】
センタリングガイド体３０は同軸プラグ部４の軸方向の略中央部に被挿されて固定される。このセンタリングガイド体３０は図１において同軸プラグ部４を中心としてその先端部側の面が傾斜面３１となった略円錐状に形成された金属体からなり、後述する同軸プラグ部４のセンタリングガイドを行うためのものである。
【００２３】
ケーブル接続部６は同軸ケーブルＣの誘電体１９を収納するための貫通孔２８を有する金属製の筒体２９を備え、この筒体２９の先端を先細りに形成して同軸ケーブルＣの外被導体２３と絶縁外被３２との間に圧入するとともに、外被導体２３を筒体２９の外面に被せ、更に金属環体３３の可塑変形により筒体２９に絶縁チューブ３４を介して絞り付けている。
【００２４】
またケーブル接続部６は筒体３３と一体に形成され、筒体３３と直交し同軸プラグ部４の軸方向の両端面が開口し且つ貫通孔２８に連通した空洞部３５を有したケース部３６を備えている。
【００２５】
同軸プラグ部４はケース部３６の一方の開口部３７より同軸ポスト５の端部に設けた導体接続部５Ａを空洞部３５内に臨ませ、また開口部３７を同軸プラグ部４の誘電体１３の端部の外向き突出部１３ａで閉塞し、更に外部電極体９の端部より外向きに突出させた突出片９ａをケース部３６の外面に設けた固定部３８の溝３９に嵌めてケース部３６に固定してある。
【００２６】
空洞部３５内に臨んだ導体接続部５Ａは空洞部３５内において同軸ケーブルＣの導体２０の先端が半田付けされ、これにより同軸ケーブルＣの導体２０を介して同軸ポスト５がアンテナに接続される。この場合の半田付けの作業は上記開口部３７とは反対側の面に開口した開口部４０から行われ、半田付け終了後、開口部４０は蓋４１により閉塞される。
【００２７】
取付部７は合成樹脂製或いは金属製の有底円筒状のケース４２と、図１においてケース４２の上部に被る有底の円筒状の金属製の蓋体４３とで構成されるハウジングと、外形が円筒状のコイルばね４４と、同軸プラグ部４に固定されているセンタリングガイド体３０を摺動自在に支持する金属製の支持台４５とで構成される。
【００２８】
ケース４２は蓋体４３が被さる側とは反対側の底部に形成した開口部４６近傍の内面に内向き鍔４７を突出し、この内向き鍔部４７の上にコイルばね４４の広い径となった一端部を載置してコイルばね４４を収納する。支持台４５は、コイルばね４４の他端部上に載置され、コイルばね４４の軸方向の伸縮に応じてケース４２内を移動するようになっている。
【００２９】
支持台４５は周縁より図１において下向き側周壁４５ａを突出させており、この側周壁４５ａが平行するケース４２の側周壁４２ａに摺接するように移動自在にケース４２内に収納されるため、支持台４５に斜めの力が加わっても傾くことなく軸方向にスムースに移動できるようになっている。
【００３０】
また側周壁４５ａと支持台４５の平面部で囲まれる凹部４５ｂにコイルばね４４の一端部を収納することで、コイルばね４４及び支持台４５をケース４２に組み込む際にコイルばね４４が径方向に動かないようにし、組立性の向上を図っている。
【００３１】
ここでセンタリングガイド体３０を固定した同軸プラグ部４を取付部４のケース４２の開口部４６と、蓋体４３側の開口部４８とに貫挿させるのは上記のようにケーブル接続部６に連結する前に行う。つまりセンタリングガイド体３０の基部の外径は支持台４５の中心孔４５ｃの内径よりも大きくしてあってこの中心孔４５ｃの周辺の支持台４５上面にセンタリングガイド体３０の基部底面を当接させながら同軸プラグ部４の後部を支持台４５の中心孔４５ｃとコイルばね４４の中心とを貫挿させてケース４２の開口部４６よりケース４２外に出し、この状態で上記のケース部３６での連結を行うのである。
【００３２】
この状態で蓋体４３をケース４２に被せて同軸プラグ部４を蓋体４３の開口部４８を介して外方へ突出させ、開口部４８内にセンタリングガイド体３０の傾斜面３１を嵌めれば図２に示す本実施形態の同軸コネクタプラグ２が完成される。
【００３３】
ここで蓋体４３の開口部４８の孔形状はセンタリングガイド体３０の基部の平面断面形状と略同じ形に形成しており、コイルばね４４のばね付勢により支持台４５を介してセンタリングガイド体３０の基部底面が押し上げられ、この押し上げにより同軸プラグ部４が先端部に向けて軸方向に変位し、接続部４の取付部７側の面がケース４２の端面（底面）に当接してそれ以上の移動が制限された状態の位置でセンタリングガイド体３０の傾斜面３１が蓋体４３よりも外部に突出するのである。
【００３４】
このように構成された同軸コネクタプラグ２を装置Ａの筐体１の取付孔部４９に組み付ける場合には、蓋体４３を取り外した状態で、筐体１の内側の開口部４６より取付孔部４９内に、同軸プラグ部４の先部側を挿入するとともにケース４２を挿入する。
【００３５】
ケース４２の周面には外向き鍔５０を一体に形成しており、またこの外向き鍔５０に対応して取付孔部４９の内面には内向き鍔５１を一体突設しており、この内向き鍔５１にケース４２の外向き鍔５０の下面（図１において）を当接させる。そして取付孔４９の筐体１外側の孔部は、蓋体４３の周壁に所定間隔で切り起こしにより形成した先端が外向きに突出せる傾斜突片５２が通る内径を持っており、この孔部内に筐体１外側から蓋体４３を挿入して、傾斜突片５１の先端が上記内向き鍔５１の上面（図１において）に当たる位置まで、ケース４２に被せる。これにより取付孔部４９の内向き鍔５１を蓋体４３の傾斜突片５２の先端と、ケース４２の外向き鍔５０とで挟持する形で取付孔４２内に同軸コネクタプラグ２が図３に示すように固定されることになる。
【００３６】
ここで携帯電話機Ｂ側に設けられるレセプタクル３は図４に示すようにカバー６０と、カバー６０内に収納されるベース６１とから本体が構成され、携帯電話機Ｂのケース６２に設けられた取付孔部５３内に配設される。取付孔部５３の外側開口に臨むようにカバー６０の表面には、底部から表面開口に向けて徐々に内径が拡径するように形成した穴部５４が設けられ、この穴部５４の中心底部に設けられた、同軸コネクタプラグ２の同軸プラグ部４の先部を嵌合するための嵌合凹部５５の孔５５ａよりベース６１側に設けられた可動ばね板５６の先端に設けられた接触片５７が露出され、この接触片５７に同軸プラグ部４の先端に臨んだプラグポスト５の先端が押接するようになっている。可動ばね板５６は基部がベース６１に固定され、その中央部に逆Ｌ状片を切り起こし、その逆Ｌ状片の先端横片で上記接触片５７を構成している。また可動ばね板５６はその自由端の下面（図４において）に可動接点５８を設け、同軸コネクタプラグ２が嵌合接続されない状態において、ベース６１に固定されている固定端子板５９の先端の接点面に可動接点５８を可動ばね板５６の弾性により弾接させ、可動ばね板５６に接続される無線通信部（図示せず）と、固定端子板５９に接続されるアンテナとの間を電気的に接続するようになっている。
【００３７】
次に本実施形態を設けた装置Ａの筐体１の載置台１Ａに上記レセプタクル３を設けた携帯電話機Ｂを載置する際、及び外す場合について図５〜図７により説明する。
【００３８】
まず携帯電話機Ｂを載置台１Ａに載置する場合、携帯電話機Ｂを載置台１Ａの所定位置に持っていき（図５（ａ））、上方から押さえ付けるようにして携帯電話機Ｂを下方へ移動させる。この際同軸コネクタプラグ２の同軸プラグ部４の先部がレセプタクル３のカバー６０の穴部５４のテーパ面にまず接触し（図６（ａ））、このテーパ面から同軸プラグ部４に径方向の力が働くとともに、下向きの軸方向の力が働くことになる。下向きの力により同軸コネクタプラグ２はコイルばね４４のばね付勢に抗して下方へ押し下げられ（図５（ｂ））、同時に径方向の力によりセンタリングガイド体３０がその傾斜面３１を蓋体４３の開口部４８の開口縁に摺接させながら支持台４５の上面を径方向の力の向きへ摺動する（図６（ｂ））。これにより同軸プラグ部４の先部がレセプタクル３のカバー６０の穴部５４のテーパ面に沿って嵌合凹部５５に嵌まり込み、同軸プラグ部４のプラグポスト５の先端面がレセプタクル３の可動ばね板５６の接触片５７に接触して、接触片５７を図において上方へ押して可動ばね板５６をその固定端を中心として撓ませ、自由端側の可動接点５８を固定端子板５９の接点面より開離させ、アンテナを無線通信部より切り離す。
【００３９】
更に携帯電話機Ａを筐体１の載置台１Ａ側に押し下げると（図５（ｃ））、携帯電話機Ａが筐体１の載置台１Ａの所定位置に固定手段（図示せず）によりロックされ、同軸プラグ部４のプラグポスト５の先端に対するレセプタクル３の可動ばね板５６の接触片５７の接触を保持するとともに、可動接点５８と固定端子板５９の接点面との開離状態を保持する。
【００４０】
次にロック状態にある携帯電話機Ａを筐体１の載置台１Ａから取り外す際には、携帯電話機Ａを上方へ持ち上げることになるが、この際コイルばね４４の上向きの軸方向の力により同軸コネクタプラグ２は図７（ａ）（ｂ）に示すように上方へ移動して元の位置へ復帰する。この取り外しの際に径方向の力が加わって、センタリングガイド体３０が支持台４５上を摺動してその傾斜面３１が蓋体４３の開口部４８の下側開口縁に接触する状態にあっても、押し付け力が無くなると、コイルばね４４の軸方向のばね付勢によりセンタリングガイド体３０がその傾斜面３１を蓋体４３の開口部の下側開口縁に接触させながら支持台４５上を中心方向に摺動して、やがてセンタリングガイド体３０が蓋体４３の開口部４８に嵌まり込み、図６（ｃ）に示すように同軸プラグ部４を該開口部４８の中心から筐体１外へ突出する所定位置に戻ることになる。
（実施形態２）
上記実施形態１は円錐状に形成したセンタリングガイド体３０を同軸プラグ部４の外部電極体９とは別体に形成して同軸プラグ部４を中心部に貫挿させ、同軸プラグ部４に固定したものであるが、本実施形態は同軸プラグ部４の外部電極体９と一体にセンタリングガイド体３０を形成するとともに、その形状を図８に示すように上面が平坦面である円盤状とし、一方このセンタリングガイド体３０が径方向に支持台４５上を摺動する際にセンタリングガイド体３０のエッジ部位が摺接する蓋体４３の内側の開口部４８の開口周辺の面を開口部４８を中心とするすり鉢状の凹面６２に形成したものである。
【００４１】
このように構成することで、センタリングガイド体３０の形状が単純化されて同軸プラグ部４の外部電極体９との一体化加工を容易としている。
【００４２】
尚その他の構成は実施形態１と同じであるので説明は省略する。
（実施形態３）
上記実施形態１は円錐状に形成したセンタリングガイド体３０を同軸プラグ部４の外部電極体９とは別体に形成して同軸プラグ部４を中心部に貫挿させ、同軸プラグ部４に固定したものであるが、本実施形態は図９に示すように同軸プラグ部４の外部電極体９と一体にセンタリングガイド体３０を形成したものである。
【００４３】
本実施形態によれば、同軸プラグ部４の外部電極体９との一体化加工により部品点数、工数の削減が図れ、しかも蓋体４３の厚みを実施形態１と同様に薄くすることができる。
【００４４】
尚その他の構成は実施形態１と同じであるので説明は省略する。
（実施形態４）
本実施形態は実施形態３の構成に加えて、図１０に示すようにセンタリングガイド体３０の基部外周面に外方向に鍔部６３を一体突出したもので、同軸プラグ部４のレセプタクル３への非嵌合接続時に鍔部６３の平面を蓋体４３の内側の開口部４８の開口周辺の平面に面接触させる構成としている。
【００４５】
本実施形態の構成によれば、実施形態３の利点に加えて、開口部４８の摩耗、変形を防止することができる。
【００４６】
尚その他の構成は実施形態１と同じであるので説明は省略する。
（実施形態５）
実施形態１或いは３，４はセンタリングガイド体３０の形状が図１１（ａ）（ｂ）に示す円錐状であったが、本実施形態は図１２（ａ）（ｂ）に示すように多角錐状に形成したもので、径方向の摺動時に蓋体４３の開口部４８の開口縁に点接触することになり、摩耗の減少が図れる。
【００４７】
またその他の構成は図１３に示すように実施形態１と同じであるので説明は省略する。
【００４８】
尚この多角錐状を実施形態３或いは４の構造に採用しても良い。
（実施形態６）
本実施形態６は図１４に示すように蓋体４３の開口部４８の内側の開口縁にＲ面６４を形成し、センタリングガイド体３０の傾斜面３１との摺接をスムースにしてスムースなセンタリングを可能としている。
【００４９】
またその他の構成は実施形態１と同じであるので説明は省略する。
【００５０】
尚本実施形態の構成は実施形態２〜５に適用しても良い。
【００５１】
ところで上記実施形態１〜６ではセンタリングガイド体３０及び蓋体４３を金属で構成することで蓋体４３の開口部４８とセンタリングガイド体３０の繰り返し接触による摩耗・変形を防ぐようにしてある。勿論摩耗、変形に対する対策の要求度が低い場合にはこれら部品を合成樹脂成形品で代用させても良い。
（実施形態７）
上記実施形態１乃至６はセンタリングガイド体３０と支持台４５とが別体であったが、本実施形態は図１５に示すように図においてセンタリングガイド体３０にコイルばね４４の付勢を受ける支持台４５を一体とするとともにセンタリングガイド体３０の上端には同軸プラグ部４を貫挿させる筒部３０ａを一体に形成した点に特徴があり、取付部７のケース４２内で支持台４５が水平方向に動かないように収納され、同軸プラグ部４の先端のフローティングは、コイルばね４４による支持台４５を含むセンタリングガイド体３０の傾きにより行うようにしてある。
【００５２】
つまり、上記実施形態１乃至６では同軸コネクタプラグ２に同軸ケーブルＣが接続され、同軸ケーブルＣによるテンションが同軸コネクタプラグ２に加わって、センタリングガイド体３０が支持台４５上を摺動し、結果センターに戻らないことが生じる恐れがあるが、本実施形態の構成では、図示するように同軸コネクタプラグ２に同軸ケーブルＣが接続され、同軸ケーブルＣによって、図示する矢印イ方向にテンションがかかっても、同軸プラグ部４を保持するセンタリングガイド体３０の支持台４５が水平方向には移動しないため、センタリングガイド体３０は同軸ケーブルＣのテンションがかかってもセンター位置を維持し、その結果同軸プラグ部４のセンター位置が保持される。尚図中αは同軸プラグ部４の先端部の可動範囲を示す。
【００５３】
また実施形態１乃至６と同じ構成には同じ符号を付し説明は省略する。
【００５４】
【発明の効果】
請求項１の発明は、レセプタクルに先端部を嵌合接続する同軸プラグ部と、両端面に開口部を有し、両端の開口部より突出させるように同軸プラグ部を収納配置するハウジングと、該ハウジング内に位置する上記同軸プラグ部の中間外周部に設けられたセンタリング部材と、該センタリング部材の基部底面を径方向に摺動自在に支持するとともに上記ハウジング内に上記同軸プラグ部の軸方向に移動自在に収納された支持台と、該支持台と上記ハウジング底面との間に配設されるとともに、上記支持台を貫挿した上記同軸プラグ部が軸方向に貫挿せるコイルばねとで構成され、上記コイルばねにより上記同軸プラグ部の先端部方向に向けて軸方向に支持台を付勢したものであって、上記同軸プラグ部の先端部が上記レセプタクルに対して嵌合接続する際及び嵌合接続状態から非嵌合接続状態に戻る際に、上記センタリング部材が径方向に移動したときに、上記センタリング部材において上記ハウジングと摺接する面と上記ハウジングにおいて上記センタリング部材と摺接する面の少なくとも一方の形状を、非嵌合接続状態に戻る際に上記ハウジングの上記開口部に上記センタリング部材が嵌まって上記同軸プラグ部が上記開口部にセンタリングされるように形成したので、コイルばねには軸方向の負荷しか加わらず径方向に捩れることが無いため、コイルばねの変形の恐れがないという効果がある。
【００５５】
請求項２の発明では、請求項１の発明において、上記センタリング部材を上記同軸プラグ部と一体に設け、上記同軸プラグ部の先端部側に対応する面を平坦面とし、この平坦面に対応する上記ハウジングの開口部周辺の面を、該開口部を中心としたすり鉢状の凹面としたので、センタリング部材の形状が単純化され、そのためセンタリング部材と同軸プラグ部との一体化加工が容易となる。
【００５６】
請求項３の発明では、請求項１の発明において、上記センタリング部材を上記同軸プラグ部と一体に設け、上記同軸プラグ部の先端部側に対応する面部を先端部方向に突出させて上記同軸プラグ部を中心とする円錐状に形成したので、同軸プラグ部とセンタリング部材との一体化加工により部品点数、工数の削減が図れ、しかもハウジングの厚みを薄くすることができる。
【００５７】
請求項４の発明は、請求項３の発明において、上記センタリング部材の基部周部に上記センタリング部材が嵌まり込む上記ハウジングの開口部の径よりも大きな鍔部を突出形成したので、開口部の摩耗、変形を防止することができる。
【００５８】
請求項５の発明は、請求項１の発明において、上記センタリング部材を上記同軸プラグ部と一体に設けられ、上記同軸プラグ部の先端部側に対応する面部を先端部方向に突出させて該同軸プラグ部を中心とする多角錐状に形成したので、径方向の摺動時にハウジングの開口部の開口縁に点接触することになり、摩耗の減少が図れる。
【００５９】
請求項６の発明は、請求項２〜５の何れかの発明において、上記同軸プラグ部の先端部が突出する上記ハウジングの開口部のハウジングの内側の開口内縁にＲ面を形成したので、ハウジングの開口部の摩耗、変形を防止することができる。
【００６０】
請求項７の発明は、請求項１〜６の何れかの発明において、上記センタリング部材及び上記同軸プラグ部の先端部が突出する開口部を形成しているハウジング部位を金属で形成したので、ハウジングの開口部とセンタリング部材の繰り返し接触による摩耗・変形を防ぐことができる。
【００６１】
請求項８の発明は、
レセプタクルに先端部を嵌合接続する同軸プラグ部と、両端面に開口部を有し、両端の開口部より突出させるように同軸プラグ部を収納配置するハウジングと、該ハウジング内に位置する上記同軸プラグ部の外周部に設けられたセンタリング部材と、センタリング部の基部に一体に設けられ径方向に移動しないようにハウジングに収納された支持台と、該支持台と上記ハウジング底面との間に配設されるとともに、上記支持台を貫挿した上記同軸プラグ部が軸方向に貫挿せる上記コイルばねとで構成され、上記コイルばねにより上記同軸プラグ部の先端部方向に向けて軸方向に支持台を付勢したものであって、上記同軸プラグ部の先端部が上記レセプタクルに対して嵌合接続する際及び嵌合接続状態から非嵌合接続状態に戻る際に、上記センタリング部材が径方向の移動したときに、上記センタリング部材において上記ハウジングと摺接する面と上記ハウジングにおいて上記センタリング部材と摺接する面の少なくとも一方の形状を、非嵌合接続状態に戻る際に上記ハウジングの上記開口部に上記センタリング部材が嵌まって上記同軸プラグ部が上記開口部にセンタリングされるように形成したので、コイルばねには軸方向の負荷しか加わらず径方向に捩れることが無いため、コイルばねの変形の恐れがないという効果があり、しかも接続される同軸ケーブルによって、テンションがかかっても、同軸プラグ部を保持するセンタリングガイド体と一体の支持台が径方向には移動しないため、センタリングガイド体をセンター位置に維持することができ、その結果同軸プラグ部のセンター位置が保持されるという効果がある。
【図面の簡単な説明】
【図１】本発明の一実施形態とレセプタクルとの嵌合接続状態の断面図である。
【図２】（ａ）は同上の上面図である。
（ｂ）は同上の側面図である。
（ｃ）は同上の下面図である。
【図３】同上の筐体への取付状態を示す側断面図である。
【図４】同上に対応するレセプタクルの断面図である。
【図５】同上のレセプタクルへの嵌合接続時の軸方向への動きを示す説明図である。
【図６】同上のレセプタクルへの嵌合接続及びレセプタクルからの取り外し時の径方向への動きを示す説明図である。
【図７】同上のレセプタクルからの取り外し時の軸方向の動きを示す説明図である。
【図８】本発明の実施形態２の一部省略せる側断面図である。
【図９】本発明の実施形態３の一部省略せる側断面図である。
【図１０】本発明の実施形態４の一部省略せる側断面図である。
【図１１】（ａ）は円錐状のセンタリングガイド体の上面図である。
（ｂ）は円錐状のセンタリングガイド体の正面図である。
【図１２】（ａ）は本発明の実施形態５の多角錐状のセンタリングガイド体の上面図である。
（ｂ）は同上の多角錐状のセンタリングガイド体の正面図である。
【図１３】同上の一部省略せる側断面図である。
【図１４】本発明の実施形態６の一部省略せる側断面図である。
【図１５】（ａ）は本発明の実施形態７の側面図である。
（ｂ）は同上の側断面図である。
（ｃ）は同上の上面図である。
【図１６】同軸コネクタプラグ及びレセプタクルの使用例の説明図である。
【図１７】従来例のレセプタクルとの嵌合接続状態の断面図である。
【符号の説明】
１筐体
２同軸コネクタプラグ
３レセプタクル
４同軸プラグ部
５プラグポスト
３０センタリングガイド体
３１傾斜面
４２ケース
４２側周壁
４３蓋体
４４コイルばね
４５支持台
４５ａ側周壁
４５ｂ凹部
４６．４８開口部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a coaxial connector plug.
[0002]
[Prior art]
2. Description of the Related Art When a mobile phone is brought into a car and used, a hands-free kit and a device for fixing the mobile phone are provided so that the user can make a call without holding the mobile phone even when the mobile phone is fitted and operated. FIG. 16 shows a device A such as a hands-free kit and a mobile phone B. The device A is provided with a mounting portion 1A for mounting the mobile phone B on the upper surface of the housing 1, and the mounting portion 1A is provided with the mounting portion 1A. It can be mounted and fixed by placing the back of the mobile phone B. Further, when the cellular phone B is placed and fixed on the placement portion 1A, the coaxial connector 2 provided on the placement portion 1A and the receptacle 3 provided on the back side of the portable phone B are fitted and connected, and the coaxial connector 2 is fitted and connected. Thus, in the receptacle 3, a circuit for disconnecting the antenna connection portion of the wireless communication unit on the mobile phone B side and the antenna on the mobile phone B side and simultaneously connecting the antenna connection portion to the coaxial connector 2 side is formed. The antenna connection portion of the wireless communication portion can be connected to the provided antenna via the coaxial cable C connected to the coaxial connector 2.
[0003]
FIG. 17 shows a state before the fitting connection between the coaxial connector 2 and the receptacle 3 which are conventionally used. The coaxial connector 2 of this conventional example includes a coaxial plug portion 4 fitted to the receptacle 3 and a coaxial cable. A cable connecting portion 6 for connecting C to the coaxial post 5 of the coaxial plug portion 4 and an attaching portion 7 for attaching the coaxial connector 2 to the housing 1 are provided.
[0004]
The mounting portion 7 has an outer conductor 9 of the coaxial plug portion 4 at one end. ' The outer shape fixed to the support member 8 fixed to the housing 1 at the other end includes a frustoconical coil spring 10 and the front end of the coaxial plug portion 4 protruding to the outside of the housing 1. In order to limit axial displacement, an annular member 11 is provided in the vicinity of the joint end of the coaxial plug portion 4 with respect to the attachment portion 7, and the coil spring 10 is accommodated in the attachment hole portion 12 formed in the housing 1. At the same time, the coaxial plug portion 4 is held so as to be displaceable in the axial direction and the radial direction by bringing the member 11 into contact with the inner surface of the housing 1 around the opening of the mounting hole portion 12. still 65 Is a film body for preventing dust and the like from entering the mounting hole 12.
[0005]
The coaxial plug portion 4 includes a dielectric 13 having the coaxial post 5 provided in the center and the outer conductor 9 having the dielectric 13 provided therein. ' It consists of.
[0006]
The cable connecting portion 6 includes a cylindrical body 22 having a through hole 21 for accommodating a conductor 20 housed in the center of the dielectric 19 of the coaxial cable C. The outer conductor of the coaxial cable C is provided on the outer surface of the cylindrical body 22. 23 comes to store Have . The outer conductor 23 is narrowed down to the cylindrical body 22 by plastic deformation of the metal ring 24. The cable connecting portion 6 has a passage 25 integrally formed with the cylindrical body 22 and orthogonal to the cylindrical body 22 and extending in the axial direction of the coaxial plug portion 4, and a conductive case portion 26 connected to the through hole 21. The end of the coaxial plug portion 4 is fitted and fixed to the conductive case portion 26, and the tip of the conductor 20 of the coaxial cable C introduced into the conductive case portion 26 and the end of the coaxial post 5 are provided. It is electrically connected by soldering.
[0007]
When the mobile phone B is to be placed at a fixed position on the mounting base 1A of the casing 1 of the device A to which the coaxial connector 2 configured as described above is attached, the outside of the receptacle 3 provided on the back of the mobile phone B The tip of the coaxial plug portion 4 of the coaxial connector 2 is fitted in the hole portion 14 formed so that the inner diameter gradually increases from the bottom portion toward the surface opening from the bottom portion, and the cellular phone B is mounted at this time. The tip portion of the coaxial plug portion 4 comes into contact with the tapered surface of the hole portion 14 due to the force to be pressed against the mounting table 1A side, but the coaxial plug portion 4 is swung in the axial direction and the radial direction by the coil spring 10, so The impact of the connector 2 can be absorbed and the risk of damage can be reduced.
[0008]
When the tip of the coaxial plug portion 4 is fitted into the fitting recess 15 provided at the center bottom of the hole portion 14, the tip of the coaxial post 5 pushes the tip of the movable contact body 16 exposed on the bottom surface thereof, thereby moving the contact. The body 16 is moved in the axial direction, the movable spring plate 17 is further moved at the rear end of the movable contact body 16, and the movable contact 17 a of the movable spring plate 17 is separated from the contact surface of the fixed terminal 18. Since the movable spring plate 17 is connected to the antenna connection portion of the wireless communication unit of the mobile phone B and the fixed terminal 18 is connected to the antenna of the mobile phone B, the antenna is disconnected by the above opening and the antenna connection portion of the wireless communication unit. Is connected to the coaxial post 5 of the coaxial plug portion 4 via the movable spring plate 17 and the movable contact body 16, thereby connecting to the automobile antenna via the coaxial cable C.
[0009]
[Problems to be solved by the invention]
By the way, the coaxial connector plug 2 of the above-described conventional example performs floating in the axial direction and the radial direction by the coil spring 10 having a substantially truncated cone shape. In the configuration of such a conventional example, the coil spring 10 is bent in the radial direction. Since the coil spring 10 is deformed so as to be twisted, the coil spring 10 may be plastically deformed when an excessive load is applied, and may not return to the initial position.
[0010]
The present invention has been made in view of the above points. The object of the present invention is to enable radial centering by the elasticity only in the axial direction, and the coil spring that provides elasticity is twisted in the radial direction. To float in the axial and radial directions Toga An object of the present invention is to provide a coaxial connector plug that realizes a possible structure.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, a coaxial plug portion for fitting and connecting a tip end portion to a receptacle, an opening portion at both end faces, and a coaxial plug portion so as to protrude from the opening portions at both ends. , A centering member provided in an intermediate outer peripheral portion of the coaxial plug portion located in the housing, and a base bottom surface of the centering member slidably supported in the radial direction and in the housing A support base movably accommodated in the axial direction of the coaxial plug portion, and disposed between the support base and the bottom surface of the housing. In The coaxial plug part inserted through the support base is inserted in the axial direction. Ruco The coil spring is used to urge the support base in the axial direction toward the distal end portion of the coaxial plug portion, and the distal end portion of the coaxial plug portion is fitted to the receptacle. When the mating connection is made and when the mating connection state returns to the non-fitting connection state, the centering member is in the radial direction. In When moving At least one of a surface in sliding contact with the housing in the centering member and a surface in sliding contact with the centering member in the housing, The centering member is fitted into the opening of the housing when returning to the non-fitted connection state, and the coaxial plug portion is centered in the opening.
[0012]
According to a second aspect of the present invention, in the first aspect of the invention, the centering member is provided integrally with the coaxial plug portion, and corresponds to a tip end side of the coaxial plug portion. Face Flat surface When The surface around the opening of the housing corresponding to the flat surface is a mortar-shaped concave surface centered on the opening.
[0013]
According to a third aspect of the present invention, in the first aspect of the present invention, the centering member is provided integrally with the coaxial plug portion, and a surface portion corresponding to the distal end portion side of the coaxial plug portion is protruded in the distal end portion direction. Conical shape with the center did It is characterized by that.
[0014]
The invention of claim 4 is claimed in claim 3 The invention is characterized in that a flange larger than the diameter of the opening of the housing into which the centering member fits is formed so as to protrude from the periphery of the base portion of the centering member.
[0015]
According to a fifth aspect of the present invention, in the first aspect of the invention, the centering member is provided integrally with the coaxial plug portion, and a surface portion corresponding to the distal end side of the coaxial plug portion is protruded toward the distal end portion so as to be coaxial. Formed into a polygonal pyramid centered on the plug did It is characterized by that.
[0016]
According to a sixth aspect of the present invention, in any one of the second to fifth aspects, an R surface is formed on the inner edge of the opening located inside the housing of the opening of the housing from which the tip of the coaxial plug portion protrudes. It is characterized by.
[0017]
A seventh aspect of the invention is characterized in that, in any one of the first to sixth aspects of the invention, the center portion and the housing part forming the opening from which the tip of the coaxial plug portion protrudes are formed of metal. And
[0018]
The invention according to claim 8 is a coaxial plug portion for fitting and connecting the tip end portion to the receptacle, a housing having an opening portion at both end faces, and housing and arranging the coaxial plug portion so as to protrude from the opening portions at both ends, The outer peripheral part of the coaxial plug part located in the housing Set in The centering member and the centering part base Provided integrally with Stored in a housing to prevent radial movement A support base and a support base disposed between the support base and the bottom surface of the housing; In The coaxial plug portion penetrating the support base is composed of the coil spring that can penetrate in the axial direction, and the support base is urged in the axial direction toward the distal end portion of the coaxial plug portion by the coil spring. When the centering member moves in the radial direction when the distal end portion of the coaxial plug portion is fitted and connected to the receptacle, and when returning from the fitted connection state to the non-fitted connection state. , At least one of a surface in sliding contact with the housing in the centering member and a surface in sliding contact with the centering member in the housing, The centering member is fitted into the opening of the housing when returning to the non-fitted connection state, and the coaxial plug portion is centered in the opening.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below.
(Embodiment 1)
FIG. 1 shows a coaxial connector plug 2 of the present embodiment provided on the case 1 side of a device A such as a hands-free kit arranged on the automobile side and the case back of a corresponding cellular phone B. Showing the cross-sectional structure of the receptacle 3 Have .
[0020]
The coaxial connector plug 2 of the present embodiment includes a coaxial plug portion 4, a cable connection portion 6, an attachment portion 7, and a centering guide body 30 serving as a centering member.
[0021]
The coaxial plug portion 4 is provided with a cylindrical external electrode body 9 in the same manner as in the conventional example, and is installed inside the external electrode body 9. This The dielectric 13 and the coaxial post 5 that is housed in the center of the dielectric 13 so as to be enclosed by the dielectric 13, and the tip of the dielectric 13 is slightly inside the opening end of the tip of the external electrode body 9. The position of the front end surface of the coaxial post 5 protruding from the front end surface is the same position as the front end surface of the external electrode body 9. Further, as shown in FIG. 2, four split grooves 27 are formed at the front end of the external electrode body 9 at equal intervals.
[0022]
The centering guide body 30 is inserted and fixed at a substantially central portion in the axial direction of the coaxial plug portion 4. The centering guide body 30 is made of a metal body formed in a substantially conical shape with a surface on the tip end side being an inclined surface 31 with the coaxial plug portion 4 in FIG. 1 as the center, and a centering guide for the coaxial plug portion 4 described later. Is for doing.
[0023]
The cable connecting portion 6 includes a metal cylinder 29 having a through hole 28 for accommodating the dielectric 19 of the coaxial cable C, and the tip of the cylinder 29 is tapered to form an outer conductor of the coaxial cable C. 23 and the insulation jacket 32, and the outer conductor 23 is placed on the outer surface of the cylinder 29, and further, the metal ring 33 is plastically deformed to be squeezed through the insulation tube 34. .
[0024]
Further, the cable connecting portion 6 is formed integrally with the cylindrical body 33, and a case portion 36 having a hollow portion 35 that is orthogonal to the cylindrical body 33, opens at both axial end surfaces of the coaxial plug portion 4, and communicates with the through hole 28. It has.
[0025]
In the coaxial plug portion 4, the conductor connecting portion 5 </ b> A provided at the end portion of the coaxial post 5 from one opening portion 37 of the case portion 36 faces the cavity portion 35, and the opening portion 37 faces the dielectric 13 of the coaxial plug portion 4. The projecting piece 9a, which is closed by the outward projecting portion 13a at the end of the outer electrode body 9 and is projected outward from the end portion of the external electrode body 9, is fitted in the groove 39 of the fixing portion 38 provided on the outer surface of the case portion 36. It is fixed to the part 36.
[0026]
The conductor connecting portion 5A facing the cavity 35 is soldered at the tip of the conductor 20 of the coaxial cable C in the cavity 35, whereby the coaxial post 5 is connected to the antenna via the conductor 20 of the coaxial cable C. . The soldering operation in this case is performed from the opening 40 opened on the surface opposite to the opening 37, and the opening 40 is closed by the lid 41 after the soldering is completed.
[0027]
The mounting portion 7 includes a housing composed of a synthetic resin or metal bottomed cylindrical case 42 and a bottomed cylindrical metal lid 43 covering the top of the case 42 in FIG. Is formed of a cylindrical coil spring 44 and a metal support 45 that slidably supports the centering guide body 30 fixed to the coaxial plug portion 4.
[0028]
The case 42 has an inward flange 47 protruding on the inner surface in the vicinity of the opening 46 formed on the bottom opposite to the side covered with the lid 43, and the coil spring 44 has a wide diameter on the inward flange 47. One end is placed and the coil spring 44 is accommodated. The support base 45 is placed on the other end of the coil spring 44 and moves in the case 42 in accordance with the expansion and contraction of the coil spring 44 in the axial direction.
[0029]
The support base 45 projects a downward peripheral wall 45a in FIG. 1 from the periphery, and is supported in the case 42 so that the side peripheral wall 45a is slidably in contact with the side peripheral wall 42a of the parallel case 42. Even if an oblique force is applied to the base 45, it can move smoothly in the axial direction without tilting.
[0030]
Also, by storing one end of the coil spring 44 in the recess 45b surrounded by the side wall 45a and the flat surface of the support base 45, when the coil spring 44 and the support base 45 are assembled into the case 42, the coil spring 44 is radially expanded. It is designed not to move and to improve assembly.
[0031]
Here, the coaxial plug portion 4 to which the centering guide body 30 is fixed is inserted into the opening portion 46 of the case 42 of the attachment portion 4 and the opening portion 48 on the lid body 43 side as described above. This is done before joining. That is, the outer diameter of the base portion of the centering guide body 30 is larger than the inner diameter of the center hole 45c of the support base 45, and the base bottom surface of the centering guide body 30 is brought into contact with the upper surface of the support base 45 around the center hole 45c. However, the rear portion of the coaxial plug portion 4 is inserted through the center hole 45c of the support base 45 and the center of the coil spring 44 and out of the case 42 through the opening 46 of the case 42. In this state, Concatenate.
[0032]
In this state, the cover 43 is put on the case 42 so that the coaxial plug portion 4 protrudes outward through the opening 48 of the cover 43 and the inclined surface 31 of the centering guide body 30 is fitted in the opening 48. The coaxial connector plug 2 of this embodiment shown in FIG. 2 is completed.
[0033]
Here, the hole shape of the opening portion 48 of the lid body 43 is formed to be substantially the same as the planar cross-sectional shape of the base portion of the centering guide body 30, and the centering guide body via the support base 45 by the spring bias of the coil spring 44. 30, the bottom surface of the base portion is pushed up, and the coaxial plug portion 4 is displaced in the axial direction toward the tip portion by this pushing up, and the surface of the connection portion 4 on the mounting portion 7 side comes into contact with the end surface (bottom surface) of the case 42. The inclined surface 31 of the centering guide body 30 protrudes outside the lid body 43 at the position where the above movement is restricted.
[0034]
When the coaxial connector plug 2 configured in this way is assembled to the mounting hole 49 of the housing 1 of the apparatus A, the mounting hole portion is opened from the opening 46 inside the housing 1 with the lid 43 removed. In 49, the front side of the coaxial plug portion 4 is inserted and the case 42 is inserted.
[0035]
An outward flange 50 is integrally formed on the peripheral surface of the case 42, and an inward flange 51 is integrally provided on the inner surface of the mounting hole 49 corresponding to the outward flange 50. The lower surface (in FIG. 1) of the outward flange 50 of the case 42 is brought into contact with the inward flange 51. The hole on the outer side of the housing 1 of the mounting hole 49 has an inner diameter through which an inclined projecting piece 52 whose tip formed by cutting and raising at a predetermined interval on the peripheral wall of the lid body 43 protrudes outwardly passes. The lid body 43 is inserted into the casing 1 from the outside, and the case 42 is covered to a position where the tip of the inclined projecting piece 51 hits the upper surface (in FIG. 1) of the inward flange 51. As a result, the coaxial connector plug 2 is shown in FIG. 3 so that the inward flange 51 of the mounting hole 49 is sandwiched between the tip of the inclined protrusion 52 of the lid 43 and the outward flange 50 of the case 42. It will be fixed as shown.
[0036]
Here, the receptacle 3 provided on the mobile phone B side is covered as shown in FIG. - 60 and a base 61 accommodated in the cover 60 constitute a main body, which is disposed in a mounting hole 53 provided in the case 62 of the mobile phone B. A hole 54 is formed on the surface of the cover 60 so as to face the outer opening of the mounting hole 53 so that the inner diameter gradually increases from the bottom toward the surface opening. The contact piece provided at the tip of the movable spring plate 56 provided on the base 61 side from the hole 55a of the fitting recess 55 for fitting the tip of the coaxial plug portion 4 of the coaxial connector plug 2 provided in 57 is exposed, and the tip of the plug post 5 facing the tip of the coaxial plug portion 4 is pressed against the contact piece 57. The base of the movable spring plate 56 is fixed to the base 61, and an inverted L-shaped piece is cut and raised at the center of the movable spring plate 56, and the contact piece 57 is configured by a lateral piece at the tip of the inverted L-shaped piece. Further, the movable spring plate 56 is provided with a movable contact 58 on the lower surface (in FIG. 4) of its free end, and the contact at the tip of the fixed terminal plate 59 fixed to the base 61 in a state where the coaxial connector plug 2 is not fitted and connected. A movable contact 58 is brought into elastic contact with the surface by the elasticity of the movable spring plate 56, and an electrical connection is established between a wireless communication unit (not shown) connected to the movable spring plate 56 and an antenna connected to the fixed terminal plate 59. To connect to.
[0037]
Next, a case where the cellular phone B provided with the receptacle 3 is placed on and removed from the placing table 1A of the casing 1 of the apparatus A provided with the present embodiment will be described with reference to FIGS.
[0038]
First, when the mobile phone B is placed on the mounting table 1A, the mobile phone B is moved to a predetermined position on the mounting table 1A (FIG. 5A), and the mobile phone B is moved downward so as to be pressed from above. Let At this time, the tip portion of the coaxial plug portion 4 of the coaxial connector plug 2 first comes into contact with the tapered surface of the hole portion 54 of the cover 60 of the receptacle 3 (FIG. 6A), and the coaxial plug portion 4 is radially directed from this tapered surface. As a result, the downward axial force is applied. The coaxial connector plug 2 is pushed downward against the spring bias of the coil spring 44 by the downward force (FIG. 5B), and at the same time, the centering guide body 30 is inclined by its radial force. 31 Is slidably contacted with the opening edge of the opening 48 of the lid 43 and slides on the upper surface of the support base 45 in the direction of the radial force (FIG. 6B). As a result, the tip of the coaxial plug portion 4 is fitted into the fitting recess 55 along the tapered surface of the hole portion 54 of the cover 60 of the receptacle 3, and the tip surface of the plug post 5 of the coaxial plug portion 4 is movable of the receptacle 3. The contact piece 57 of the spring plate 56 is contacted, the contact piece 57 is pushed upward in the drawing to bend the movable spring plate 56 around its fixed end, and the movable contact 58 on the free end side is contacted with the contact surface of the fixed terminal plate 59. Separate the antenna from the wireless communication unit.
[0039]
When the cellular phone A is further pushed down to the mounting table 1A side of the casing 1 (FIG. 5C), the cellular phone A is locked at a predetermined position of the mounting table 1A of the casing 1 by a fixing means (not shown), While maintaining the contact of the contact piece 57 of the movable spring plate 56 of the receptacle 3 with the tip of the plug post 5 of the coaxial plug portion 4, the movable contact 58 and the contact surface of the fixed terminal plate 59 are kept open.
[0040]
Next, when the cellular phone A in the locked state is detached from the mounting table 1A of the housing 1, the cellular phone A is lifted upward. At this time, the coaxial connector is caused by the upward axial force of the coil spring 44. As shown in FIGS. 7A and 7B, the plug 2 moves upward and returns to the original position. A radial force is applied during the removal, and the centering guide body 30 slides on the support base 45 so that the inclined surface 31 is in contact with the lower opening edge of the opening 48 of the lid 43. However, when the pressing force is lost, the centering guide body 30 is brought into contact with the lower opening edge of the opening of the lid 43 while the centering guide body 30 is brought into contact with the lower opening edge of the lid 43 by the axial spring bias of the coil spring 44. After sliding in the center direction, the centering guide body 30 eventually fits into the opening 48 of the lid 43, and the coaxial plug 4 is moved from the center of the opening 48 to the housing 1 as shown in FIG. It will return to the predetermined position which protrudes outside.
(Embodiment 2)
In the first embodiment, the centering guide body 30 formed in a conical shape is disposed outside the coaxial plug portion 4. Part The electrode body 9 is formed separately and the coaxial plug portion 4 is inserted through the central portion and fixed to the coaxial plug portion 4. External electrode body 9 When the centering guide body 30 slides on the support base 45 in the radial direction, the centering guide body 30 is formed into a disk shape having a flat upper surface as shown in FIG. A surface around the opening of the opening 48 inside the lid 43 slidably contacting the edge portion of the centering guide body 30 is formed as a mortar-shaped concave surface 62 centered on the opening 48.
[0041]
With this configuration, the shape of the centering guide body 30 is simplified, and the coaxial plug portion 4 Part Integration with the electrode body 9 is easy.
[0042]
Since other configurations are the same as those of the first embodiment, description thereof is omitted.
(Embodiment 3)
In the first embodiment, the centering guide body 30 formed in a conical shape is disposed outside the coaxial plug portion 4. Part Although formed separately from the electrode body 9 and the coaxial plug portion 4 is inserted through the central portion and fixed to the coaxial plug portion 4, this embodiment is similar to that of the coaxial plug portion 4 as shown in FIG. External electrode body 9 The centering guide body 30 is formed integrally with the above.
[0043]
According to this embodiment, the outside of the coaxial plug portion 4 Part By integrating with the electrode body 9, the number of parts and man-hours can be reduced, and the thickness of the lid body 43 can be reduced as in the first embodiment.
[0044]
Since other configurations are the same as those of the first embodiment, description thereof is omitted.
(Embodiment 4)
In the present embodiment, in addition to the configuration of the third embodiment, as shown in FIG. 10, a flange portion 63 is integrally projected outwardly on the outer peripheral surface of the base portion of the centering guide body 30, and the coaxial plug portion 4 is connected to the receptacle 3. At the time of non-fitting connection, the plane of the flange part 63 is configured to be in surface contact with the plane around the opening of the opening 48 inside the lid 43.
[0045]
According to the configuration of the present embodiment, in addition to the advantages of the third embodiment, wear and deformation of the opening 48 can be prevented.
[0046]
Since other configurations are the same as those of the first embodiment, description thereof is omitted.
(Embodiment 5)
In the first, third, and fourth embodiments, the centering guide body 30 has a conical shape as shown in FIGS. 11A and 11B. However, in this embodiment, the polygonal pyramid is formed as shown in FIGS. Since it is formed in a shape, it comes into point contact with the opening edge of the opening 48 of the lid 43 when sliding in the radial direction, and wear can be reduced.
[0047]
Other configurations are the same as those of the first embodiment as shown in FIG.
[0048]
This polygonal pyramid shape may be adopted in the structure of the third or fourth embodiment.
(Embodiment 6)
In the sixth embodiment, as shown in FIG. 14, an R surface 64 is formed on the opening edge inside the opening 48 of the lid 43, and the sliding contact with the inclined surface 31 of the centering guide body 30 is made smooth so that smooth centering is achieved. Is possible.
[0049]
Other configurations are the same as those of the first embodiment, and thus description thereof is omitted.
[0050]
In addition, you may apply the structure of this embodiment to Embodiment 2-5.
[0051]
By the way, in the first to sixth embodiments, the centering guide body 30 and the lid body 43 are made of metal to prevent wear and deformation due to repeated contact between the opening 48 of the lid body 43 and the centering guide body 30. Of course, if the degree of demand for measures against wear and deformation is low, these parts may be replaced with synthetic resin molded products.
( Embodiment 7)
In the first to sixth embodiments, the centering guide body 30 and the support base 45 are separate bodies. However, in the present embodiment, as shown in FIG. The base 45 is integrated, and the centering guide body 30 is characterized in that the upper end of the centering guide body 30 is integrally formed with a cylindrical portion 30a through which the coaxial plug portion 4 is inserted, and the support base 45 is horizontal in the case 42 of the mounting portion 7. It is accommodated so as not to move in the direction, and the tip end of the coaxial plug portion 4 is floated by the inclination of the centering guide body 30 including the support base 45 by the coil spring 44.
[0052]
That is, in the first to sixth embodiments, the coaxial cable C is connected to the coaxial connector plug 2, and the tension by the coaxial cable C is applied to the coaxial connector plug 2 so that the centering is performed. guide Although the body 30 may slide on the support base 45 and may not return to the center as a result, in the configuration of this embodiment, the coaxial cable C is connected to the coaxial connector plug 2 as shown in FIG. Even if tension is applied in the direction indicated by arrow A by C, the support base 45 of the centering guide body 30 that holds the coaxial plug portion 4 does not move in the horizontal direction. Maintains center position even when applied Shi As a result, the center position of the coaxial plug portion 4 is maintained. In the figure, α indicates the movable range of the tip of the coaxial plug portion 4.
[0053]
The same components as those in the first to sixth embodiments are denoted by the same reference numerals, and description thereof is omitted.
[0054]
【The invention's effect】
The invention of claim 1 includes a coaxial plug portion that fits and connects a tip portion to a receptacle, a housing that has openings on both end faces and accommodates the coaxial plug portion so as to protrude from the openings on both ends, A centering member provided in an intermediate outer peripheral portion of the coaxial plug portion located in the housing, and a base bottom surface of the centering member are slidably supported in the radial direction, and the axial direction of the coaxial plug portion is accommodated in the housing. A support base movably accommodated and disposed between the support base and the bottom surface of the housing; In The coaxial plug part inserted through the support base is inserted in the axial direction. Ruco The coil spring is used to urge the support base in the axial direction toward the distal end portion of the coaxial plug portion, and the distal end portion of the coaxial plug portion is fitted to the receptacle. When the mating connection is made and when the mating connection state returns to the non-fitting connection state, the centering member is in the radial direction. In When moving At least one of a surface in sliding contact with the housing in the centering member and a surface in sliding contact with the centering member in the housing, Since the centering member is fitted in the opening of the housing and the coaxial plug is centered in the opening when returning to the non-fitted connection state, the coil spring has only an axial load. Since there is no twist in the radial direction without being added, there is an effect that there is no fear of deformation of the coil spring.
[0055]
According to a second aspect of the present invention, in the first aspect of the invention, the centering member is provided integrally with the coaxial plug portion, and corresponds to a tip end side of the coaxial plug portion. Face Flat surface When Since the surface around the opening of the housing corresponding to the flat surface is a mortar-shaped concave surface with the opening as the center, the shape of the centering member is simplified, so that the centering member and the coaxial plug portion Can be easily integrated.
[0056]
According to a third aspect of the present invention, in the first aspect of the present invention, the centering member is provided integrally with the coaxial plug portion, and a surface portion corresponding to the distal end portion side of the coaxial plug portion is protruded in the distal end portion direction. Conical shape with the center did Therefore, the number of parts and man-hours can be reduced by integrating the coaxial plug portion and the centering member, and the thickness of the housing can be reduced.
[0057]
The invention of claim 4 is claimed in claim 3 In this invention, since the flange part larger than the diameter of the opening part of the housing into which the centering member fits is formed on the periphery of the base part of the centering member, wear and deformation of the opening part can be prevented.
[0058]
According to a fifth aspect of the present invention, in the first aspect of the invention, the centering member is provided integrally with the coaxial plug portion, and a surface portion corresponding to the distal end side of the coaxial plug portion is protruded toward the distal end portion so as to be coaxial. Formed into a polygonal pyramid centered on the plug did Therefore, point contact is made with the opening edge of the opening of the housing during sliding in the radial direction, and wear can be reduced.
[0059]
According to a sixth aspect of the present invention, in the invention according to any one of the second to fifth aspects, since the R surface is formed on the inner edge of the opening of the housing where the tip end portion of the coaxial plug portion protrudes, Wear and deformation of the opening can be prevented.
[0060]
Since the housing part which forms the opening part which the front-end | tip part of the said centering member and the said coaxial plug part protrudes in the invention of Claim 7 in any invention of Claims 1-6 was formed in the housing Wear and deformation due to repeated contact between the opening and the centering member can be prevented.
[0061]
The invention of claim 8
A coaxial plug portion that fits and connects the front end portion to the receptacle, a housing that has openings on both end faces and accommodates the coaxial plug portion so as to protrude from the opening portions on both ends, and the coaxial located in the housing Outer part of plug Set in The centering member and the centering part base Provided integrally with Stored in a housing to prevent radial movement A support base and a support base disposed between the support base and the bottom surface of the housing; In The coaxial plug portion penetrating the support base is composed of the coil spring that can penetrate in the axial direction, and the support base is urged in the axial direction toward the distal end portion of the coaxial plug portion by the coil spring. When the centering member moves in the radial direction when the distal end portion of the coaxial plug portion is fitted and connected to the receptacle, and when returning from the fitted connection state to the non-fitted connection state. , At least one of a surface in sliding contact with the housing in the centering member and a surface in sliding contact with the centering member in the housing, Since the centering member is fitted in the opening of the housing and the coaxial plug is centered in the opening when returning to the non-fitted connection state, the coil spring has only an axial load. Since it is not twisted in the radial direction without being added, there is no risk of deformation of the coil spring, and it is integrated with the centering guide body that holds the coaxial plug even when tension is applied by the connected coaxial cable. Support stand Diameter Since it does not move in the direction, the centering guide body can be maintained at the center position, and as a result, the center position of the coaxial plug portion is maintained.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a fitting connection state between an embodiment of the present invention and a receptacle.
FIG. 2A is a top view of the same.
(B) is a side view of the above.
(C) is a bottom view of the above.
FIG. 3 is a side sectional view showing a state of attachment to the casing.
FIG. 4 is a cross-sectional view of a receptacle corresponding to the above.
FIG. 5 is an explanatory view showing the movement in the axial direction at the time of fitting connection to the receptacle.
FIG. 6 is an explanatory diagram showing a radial movement during fitting connection to the receptacle and removal from the receptacle.
FIG. 7 is an explanatory view showing the movement in the axial direction at the time of removal from the receptacle.
FIG. 8 is a side sectional view showing a part of Embodiment 2 of the present invention that can be omitted.
FIG. 9 is a side sectional view showing a part of Embodiment 3 of the present invention that can be omitted.
FIG. 10 is a side sectional view showing a part of Embodiment 4 of the present invention that can be omitted.
FIG. 11A is a top view of a conical centering guide body.
(B) is a front view of a conical centering guide body.
FIG. 12A is a top view of a centering guide body having a polygonal pyramid shape according to a fifth embodiment of the present invention.
(B) is a front view of the same centering guide body of the polygonal pyramid shape.
FIG. 13 is a side sectional view showing a part thereof omitted from the above.
FIG. 14 is a side sectional view showing a part of Embodiment 6 of the present invention that can be omitted.
FIG. 15 (a) is a side view of a seventh embodiment of the present invention.
(B) is a side sectional view of the above.
(C) is a top view of the same.
FIG. 16 is an explanatory diagram of a usage example of a coaxial connector plug and a receptacle.
FIG. 17 is a cross-sectional view showing a fitting connection state with a conventional receptacle.
[Explanation of symbols]
1 housing
2 Coaxial connector plug
3 Receptacle
4 Coaxial plug part
5 Plug post
30 Centering guide body
31 Inclined surface
42 cases
42 Side wall
43 Lid
44 Coil spring
45 Support stand
45a Side wall
45b recess
46.48 opening

Claims

A coaxial plug portion that fits and connects the front end portion to the receptacle, a housing that has openings on both end faces and accommodates the coaxial plug portion so as to protrude from the opening portions on both ends, and the coaxial located in the housing A centering member provided on an intermediate outer peripheral portion of the plug portion, and a support that slidably supports the bottom surface of the base portion of the centering member in the radial direction and is housed in the housing so as to be movable in the axial direction of the coaxial plug portion. and the base, to together when it is disposed between the support base and the bottom surface of the housing, the coaxial plug part inserted through the support base is constituted by a transmural allowed Turkey yl spring in the axial direction, the coil A spring is used to bias the support base in the axial direction toward the tip of the coaxial plug, and when the tip of the coaxial plug is fitted and connected to the receptacle. When returning from the connection state to the non-fitting connection state, when the centering member is moved in the radial direction, in the housing in sliding contact surfaces and the housing in the centering member of the centering member and the sliding contact surface of at least one of A coaxial connector plug characterized in that the centering member is fitted into the opening of the housing when the shape is returned to the non-fitted connection state, and the coaxial plug is centered in the opening. .

The centering member is provided integrally with the coaxial plug portion, a surface corresponding to the distal end side of the coaxial plug portion is a flat surface, and a surface around the opening of the housing corresponding to the flat surface is the opening portion. The coaxial connector plug according to claim 1, wherein the coaxial connector plug is a mortar-shaped concave surface centered on the surface.

The centering member is provided integrally with the coaxial plug portion, and a surface portion corresponding to the distal end portion side of the coaxial plug portion is protruded toward the distal end portion to be formed in a conical shape centering on the coaxial plug portion. The coaxial connector plug according to claim 1.

4. The coaxial connector plug according to claim 3 , wherein a flange that is larger than the diameter of the opening of the housing into which the centering member fits is formed so as to protrude from the periphery of the base portion of the centering member.

The centering member provided integrally with the coaxial plug part, that it has formed on the polygonal pyramid around the coaxial plug part protrudes in the distal direction a surface portion corresponding to the front end portion of the coaxial plug part The coaxial connector plug according to claim 1.

The coaxial connector plug according to any one of claims 2 to 5, wherein an R surface is formed on an inner edge of the opening of the housing in which the front end portion of the coaxial plug portion protrudes.

The coaxial connector plug according to any one of claims 1 to 6, wherein the centering member and a housing part forming an opening from which a tip of the coaxial plug part protrudes are made of metal .

A coaxial plug portion that fits and connects the front end portion to the receptacle, a housing that has openings on both end faces and accommodates the coaxial plug portion so as to protrude from the opening portions on both ends, and the coaxial located in the housing a centering member kicked set on the outer periphery of the plug portion, a support base which is accommodated in the housing so as not to move in the radial direction is provided integrally with the base portion of the centering portion, between said support base and said housing bottom in together when disposed, the coaxial plug part inserted through the support base is constituted by a transmural causes the coil spring in the axial direction, the axial direction toward the distal end direction of the coaxial plug part by the coil spring When the front end of the coaxial plug portion is fitted and connected to the receptacle and when the fitting connection state is returned to the non-fitting connection state, the center is urged. When the ring member is moved in the radial direction, the housing when in the housing in sliding contact surfaces and the housing in the centering member at least one of shape of the centering member and the sliding contact surface, returns to the non-fit connection state A coaxial connector plug, wherein the centering member is fitted into the opening and the coaxial plug is centered in the opening.