JP4251920B2

JP4251920B2 - Socket for electrical parts

Info

Publication number: JP4251920B2
Application number: JP2003167956A
Authority: JP
Inventors: 久男大島
Original assignee: Enplas Corp
Current assignee: Enplas Corp
Priority date: 2003-06-12
Filing date: 2003-06-12
Publication date: 2009-04-08
Anticipated expiration: 2023-06-12
Also published as: JP2005005152A

Description

【０００１】
【発明の属する技術分野】
本発明は、電気部品を押圧する部品押え部材を備える電気部品用ソケットに関し、詳しくは、部品押え部材に形成された可撓性を有する各脚部の内側面に対向して撓み抑止突部を突設することによって、組み付け作業の容易性と共に部品押え部材の安定動作を確保しようとする電気部品用ソケットに係るものである。
【０００２】
【従来の技術】
従来、この種の電気部品用ソケットには、電気部品を載置する載置部がソケット本体部に設けられ、電気部品を押えるラッチ部材が載置部の両側方でソケット本体部に回動自在に枢着され、また、ソケット本体部の載置部対応部には、電気部品の端子に接触可能な複数のコンタクトピンが配設された構成を有するものがある。そして、図１４に示すように、例えばラッチ部材１は、本体部１ａに電気部品を押える押え部１ｂが形成されると共に、本体部１ａから外側方に向けて回動軸部１ｃが一体成形されて突出されている。一方、ソケット本体部２には、開放口２ａから挿入された回動軸部１ｃを回動自在に保持する保持凹部２ｂが形成されると共に、回動軸部１ｃの直交方向の一側方にて回動軸部１ｃに対向して係止爪２ｃを有する係止片２ｄが形成され、係止片２ｄは、回動軸部１ｃを保持凹部２ｂの開放口２ａから挿入して行く際に同図中矢印Ｐ方向に弾性変形させられ、挿入が完了した状態で、ラッチ部材１のばね受け部１ｄが図示省略のばね部材で上向きに付勢されて回動軸部１ｃを係止爪２ｃに係止し、回動軸部１ｃが保持凹部２ｂから抜け出すのを規制するようにしている（例えば、特許文献１参照）。
【０００３】
【特許文献１】
特開２００３−７４１６号公報
【０００４】
【発明が解決しようとする課題】
しかし、このような従来の電気部品用ソケットにおいては、ラッチ部材１で電気部品を押圧する押圧力を高めるために、ラッチ部材を上向きに付勢するばね部材の弾性力を強くした場合には、このばね部材の弾性力によって、回動軸部１ｃに上向きの強い力が作用し、回動軸部１ｃが係止片２ｄを図１４中矢印Ｐ方向に押し広げて保持凹部２ｂから抜け出る虞がある。
【０００５】
また、ラッチ部材１のソケット本体部２の保持凹部２ｂに対する組み付け作業性を改善するために、例えば、図１５に示すように下端から上端近傍部に亘って一対の脚部１ｅを形成し、この各脚部１ｅの略中央部から外側方に回動軸部１ｃを突出させた構成のラッチ部材１が考えられる。このようなラッチ部材１は、図１６中矢印Ｑ，Ｒで示すように脚部１ｅを左右方向から押圧して内側に撓ませ、図１５に示す回動軸部１ｃの両端間寸法Ｌを、図１６に示すソケット本体部２に形成した保持凹部２ｂの開放口２ａの幅Ｗよりも小さくなるように押し縮めた後、開放口２ａに対して上方から挿入される。その後、脚部１ｅに対する左右方向からの押圧を解放すると脚部１ｅは元の状態に復帰する。このとき、ばね受け部１ｄを図１７中矢印Ｓ方向に図示省略のばね部材で付勢すると、ラッチ部材１は、回動軸部１ｃを保持凹部２ｂの上側面２ｅに係止して回動自在に保持される。しかし、このようなラッチ部材１においても、ばね部材の弾性力を強くした場合には、回動軸部１ｃの端部が保持凹部２ｂの上側面２ｅに係止しているため、ばね部材の上向きの付勢力により脚部１ｅには内向きの力が発生し、脚部１ｅが内側に撓むことになる。その結果、ラッチ部材１は、図１６に示す状態と同様になって、保持凹部２ｂから抜け出る虞がある。また、一部抜け出かかった状態で使用された場合には、脚部１ｅにはねじれの力が作用し破損してしまう虞もある。
【０００６】
そこで、本発明は、このような問題点に対処し、組み付け作業の容易性と共に部品押え部材の安定動作を確保しようとする電気部品用ソケットを提供することを目的とする。
【０００７】
【課題を解決するための手段】
上記目的を達成するために、本発明による電気部品用ソケットは、電気部品を載置部に載置して保持するソケット本体部と、このソケット本体部の載置部に対応して複数植設されたコンタクトピンと、ソケット本体部に枢着され回動して載置部に載置された電気部品を押圧し、電気部品の端子とコンタクトピンとの接触を確保する部品押え部材と、ソケット本体部に上下動自在に配設され部品押え部材を回動操作する操作部材と、を有する電気部品用ソケットであって、前記部品押え部材は、上端にてソケット本体部の載置部側に延設されて電気部品を押圧する押え部と、下端から上端近傍部に亘って二つに分離して形成され可撓性を有する脚部と、この各脚部の外側方に突出され前記ソケット本体部に回動自在に保持される回動軸部と、前記各脚部の内側面に対向して突設された撓み抑止突部と、を備え、各脚部を回動軸部と略直交方向にずらすことを可能に形成したものである。
【０００８】
このような構成により、部品押え部材を下端から上端近傍部に亘って二つに分離して形成され可撓性を有する脚部を回動軸部と略直交方向にずらし、さらに内側に撓ませて各脚部の外側方に突出した回動軸部で部品押え部材をソケット本体部に回動自在に枢着し、定常時においては各脚部の内側面に対向して突設された撓み抑止突部で脚部の内側への撓みを制限し、ソケット本体部に上下動自在に配設された操作部材で部品押え部材を回動操作して部品押え部材の上端にて載置部側に延設された押え部で載置部に載置された電気部品を押圧し、電気部品の端子とコンタクトピンとの接触を確保する。これにより、組み付け作業を容易にし、部品押え部材の安定動作を確保する。
【０００９】
また、前記各脚部にそれぞれ設けた撓み抑止突部は、その一部のみが対向するように対向配置されたものである。これにより、撓み抑止突部の対向した部分に相当する分だけ各脚部を回動軸部に対して略直交方向にずらして撓み抑止突部を非対向状態にする。
【００１０】
さらに、前記部品押え部材は、前記ソケット本体部の両側端部に設けた保持凹部にそれぞれ前記回動軸部を係止させて一対設けられたものである。これにより、回動軸部でソケット本体部の両側端部に設けた保持凹部に係止する。
【００１１】
また、前記部品押え部材は、前記各脚部の少なくとも一方の下端部に弾性部材による常時上向きの付勢力を受ける弾性部材受け部を形成したものである。これにより、各脚部の少なくとも一方の下端部に形成した弾性部材受け部で弾性部材による常時上向きの付勢力を受ける。
【００１２】
そして、前記部品押え部材は、前記弾性部材受け部と反対側の部位に、操作部材の下降動作に伴って、この操作部材と当接する被押圧部を形成したものである。これにより、弾性部材受け部と反対側の部位に形成した被押圧部で操作部材の下降動作に伴って、この操作部材に当接する。
【００１３】
【発明の実施の形態】
以下、本発明の実施の形態を添付図面に基づいて詳細に説明する。
図１は、本発明による電気部品用ソケットの実施の形態を示す平面図である。この電気部品用ソケットは、例えばＢＧＡ（Ball Grid Array）タイプの電気部品のバーンインテスト等に適用されるものであり、ソケット本体部２と、コンタクトピン４と、ラッチ部材１と、操作部材５と、を備えている。
【００１４】
ソケット本体部２は、電気部品を収容して保持する電気部品用ソケットの本体部を構成する合成樹脂製のものであり、図２に示すように、トッププレート６と、移動部材７と、レバー８と、を備えている。
【００１５】
ソケット本体部２の中央部には、トッププレート６が固定して設けられている。このトッププレート６は、その上面部を載置部６ａとして形成しており、この載置部６ａに電気部品を載置して保持できるようになっている。そして、図１に示すように、載置部６ａを囲んでガイド部９が設けられ、このガイド部９の隅角部分は斜面状にされて、電気部品を載置部６ａに載置する際に、電気部品を案内できるようになっている。また、載置部６ａには、載置された電気部品の端子に対応する位置に後述のコンタクトピン４を挿通する挿通孔１０が形成されている。
【００１６】
また、トッププレート６の下方には、図２に示すように、移動部材７が配設されている。この移動部材７は、上下動して後述のコンタクトピン４を変位させるものであり、ばね部材１１によって上向きに付勢されてソケット本体部２に対して上下動自在に保持されている。
【００１７】
さらに、図１及び図２に示すように、ソケット本体部２の両側端近傍部には、略左右対称位置に１組のレバー８が枢着されている。このレバー８は、回動して移動部材７を上下動させるものであり、金属板により形成され、基端部８ａに設けられた嵌合孔８ｂに合成樹脂製のソケット本体部２に一体成型されたボス２ａを嵌合させることにより回動自在に配設され、押圧部８ｃを移動部材７の上面に当接させている。そして、上端隅部に設けた被押圧部８ｄが後述の操作部材５により下方に押圧されることによって内側に回動し、押圧部８ｃで移動部材７を押圧して下方に移動させるようにしている。
【００１８】
そして、ソケット本体部２の載置部６ａの両側端部には１組のラッチ部材１が設けられている。このラッチ部材１は、ソケット本体部２に枢着され、回動して載置部６ａに載置された電気部品を押圧し、電気部品の端子とコンタクトピン４との接触を確保する部品押え部材となるものであり、合成樹脂製で一体成型される。このラッチ部材１は、図４及び図５に示すように、上端にてソケット本体部２の載置部６ａ側に延設されて電気部品を押圧する押え部１ｂと、下端から上端近傍部に亘って二つに分離して形成され可撓性を有する脚部１ｅと、この各脚部１ｅの外側方に突出されソケット本体部２に回動自在に保持される回動軸部１ｃと、各脚部１ｅの内側面に対向して突設された撓み抑止突部１ｈと、を備え、各脚部１ｅを回動軸部１ｃと略直交方向にずらすことを可能に形成されている。そして、この撓み抑止突部１ｈは、図６中斜線を付して示すように、その一部のみが対向するように配置されている。
【００１９】
さらに、ラッチ部材１は、図５及び図６に示すように右側の脚部１ｅの下端部に弾性部材受付部としてのばね受け部１ｄを形成し、図３に示すように、ソケット本体部２に設けた保持凹部２ｂに挿入されてばね部材１２によって常時電気部品を押圧する方向に付勢され、回動軸部１ｃを図示省略の保持凹部の上側面に係止して回動自在に保持されている。
【００２０】
そして、ラッチ部材１は、図４に示すように、ばね受け部１ｄと反対側の部位に被押圧部１ｇを設け、後述の操作部材５の下降動作に伴って、この操作部材５によって押圧されて回動し、電気部品の押圧を解除すると共に載置部６ａを開放するようになっている。
【００２１】
また、ソケット本体部２の載置部６ａに対応する部位には、コンタクトピン４が複数植設されている。このコンタクトピン４は、電気部品の端子とソケット本体部２の下部に配置した回路基板の配線部とを電気的に接続するためのものであり、図１に示すように、載置部６ａに設けられた挿通孔１０を挿通して先端部を載置部６ａ側に突出させ、反対側端部をソケット本体部２の下面より突出させた状態（図２参照）でマトリクス状に配設されている。
【００２２】
このコンタクトピン４は、弾性を有し、導電性に優れた板材をプレス加工して形成されるものであり、図７に示すように、上方に一対の弾性片４ａ，４ｂが形成され、下方に１本のソルダーテール部４ｃが形成されている。それら一対の弾性片４ａ，４ｂは、下端部側の基部４ｄが同図（ｄ）に示すように略Ｕ字状に折曲されることにより、互いに対向するように形成されている。また、それら弾性片４ａ，４ｂの上端部（先端部）には、電気部品の端子である、例えば半田ボールの片側の部位にそれぞれ接触する接触部４ｅ，４ｆが形成され、この両接触部４ｅ，４ｆで半田ボールが挟持されて電気的に接続されるようになっている。
【００２３】
また、このコンタクトピン４の一対の弾性片４ａ，４ｂには、略くの字状に折曲された折曲部４ｇが形成されることにより、図８に示すように、移動部材７が下方に移動するのに伴って、これら折曲部４ｇが移動部材７に設けたカム部７ａに押圧されて、図９に示すように、両接触部４ｅ，４ｆが開くように構成されている。
【００２４】
そして、このコンタクトピン４のソルダーテール部４ｃ及び基部４ｄが、図８及び図９に示すように、ソケット本体部２に形成された圧入孔２ｆに圧入されて、この基部４ｄに形成された抜止め部４ｍがソケット本体部２に食い込むことにより、コンタクトピン４の上方への抜けを防止するようにしている。そして、ソケット本体部２から下方に突出したソルダーテール部４ｃを図示省略の回路基板の各貫通孔に挿通して半田付けすることにより接続されるようになっている。
【００２５】
また、図１に示すように、ソケット本体部２の外周部分には、操作部材５が上下動可能に設けられている。この操作部材５は、上下動してレバー８を駆動し、移動部材７を上下方向に移動させてコンタクトピン４の一対の接触部４ｅ，４ｆを開閉操作すると共にラッチ部材１を回動させて載置部６ａを開閉操作するものであり、図２に示すように、他のばね部材１３によって上向きに常時付勢されている。そして、同図に示すように、操作部材５の内側面をレバー押圧部５ａとし、また、図３に示すように、下端部をラッチ押圧部５ｂとして形成し、それぞれレバー８の被押圧部８ｄ及びラッチ部材１の被押圧部１ｇを押圧できるようになっている。
【００２６】
次に、ラッチ部材１のソケット本体部２への組み付け方法を、図１０〜図１３を参照して説明する。
ラッチ部材１は、定常状態においては、図６に示す状態にある。このとき、各脚部１ｅに対して、図１０に示すように矢印Ｔ，Ｕの互いに反対方向の力を強制的に付与し、撓み抑止突部１ｈが非対向状態となるまでずらす。さらに、この状態を維持して、図１１に示すように、各脚部１ｅを左右方向から矢印Ｖ，Ｘ方向に押圧し、撓み抑止突部１ｈの下端縁部が脚部１ｅの内側面１ｆに当接するまで撓ませる。これにより、回動軸部１ｃの両端間寸法Ｌ１がソケット本体部２に設けた保持凹部２ｂの開放口２ａの幅Ｗより小さくなりラッチ部材１が保持凹部２ｂに挿入可能となる。そして、ラッチ部材１を保持凹部２ｂに挿入した後、各脚部１ｅに与えていた力を全て解除すると、各脚部１ｅは、図６に示す定常状態に復帰する。次に、ラッチ部材１のばね受け部１ｄに対して図示省略のばね部材により上向きの弾性力を付与すると、図１２に示すように、回動軸部１ｃの端部が保持凹部２ｂの上側面２ｅに係止してラッチ部材１が回動可能に保持される。
【００２７】
この場合、ラッチ部材１による電気部品の押圧力を増すために、図１３に示す矢印Ｙ方向の弾性力を強くすると、回動軸部１ｃの両端部が保持凹部２ｂの上側面２ｅに係止しているので、ラッチ部材１には、脚部１ｅを内側に撓ませる力が発生する。しかし、この場合、脚部１ｅの内側面１ｆに対向して形成した撓み抑止突部１ｈが当接して脚部１ｅの撓み量を制限するので、回動軸部１ｃの両端部間寸法Ｌが保持凹部２ｂの開放口２ａの幅Ｗより小さくならない。したがって、回動軸部１ｃの両端部は、保持凹部２ｂの上側面２ｅに係止した状態が維持される。
【００２８】
次に、このように構成された電気部品用ソケットの動作を説明する。
先ず、操作部材５を下方に押圧すると、図３に示すように、操作部材５のラッチ押圧部５ｂにラッチ部材１の被押圧部１ｇが押圧され、ラッチ部材１が回動軸部１ｃを中心に同図中時計方向に回動し、載置部６ａを電気部品が載置可能状態に開放する。このとき、同時に、図２に示すレバー８の被押圧部８ｄが操作部材５のレバー押圧部５ａによって押圧され、ソケット本体部２に一体成型されたボス２ａを中心に内側に回動する。そして、押圧部８ｃで移動部材７を下方に押圧して移動させる。これにより、図８に示すコンタクトピン４の折曲部４ｇが移動部材７に設けたカム部７ａに押圧されて、図９に示すように、コンタクトピン４の両接触部４ｅ，４ｆが開く。ここで、載置部６ａに上方から電気部品を落とし込むと、同図（ｂ）に示すように電気部品１４の半田ボール１４ａが挿入される。
【００２９】
このような状態において、操作部材５の押圧を解除する。これにより、操作部材５によるラッチ部材１の被押圧部１ｇに対する押圧が解除され、ラッチ部材１は、ばね部材１２による付勢力により、図３中反時計方向に回動して電気部品を押圧する。同時に、操作部材５によるレバー８に対する押圧も解除されるため、移動部材７は上昇し、カム部７ａがコンタクトピン４の折曲部４ｇの押圧を解放し、両接触部４ｅ，４ｆが閉じられる。これにより、コンタクトピン４は、両接触部４ｅ，４ｆで電気部品１４の半田ボール１４ａをつかみ、電気的に接触し、ソケット本体部２の下面に配置された回路基板との電気的接続を可能にする。
【００３０】
このように、本発明の電気部品用ソケットは、ラッチ部材１を下端から上端近傍に亘って二つに分離して可撓性を有する一対の脚部１ｅを形成し、各脚部１ｅの内側面１ｆに一部が重なり合うように対向して撓み抑止突部１ｈを突設しているので、ばね部材１２の弾性力が強くて脚部１ｅが内側へ撓んだ場合にも、撓み抑止突部１ｈが互いに当接して撓み量を制限し、ラッチ部材１がソケット本体部２の保持凹部２ｂから抜け出すのを防止することができる。これにより、ラッチ部材１の安定動作を確保することができる。
【００３１】
また、撓み抑止突部１ｈが非対向状態になるまで脚部１ｅを回動軸部１ｃと直交方向にずらした後、内側に撓ませることにより回動軸部１ｃの両端間寸法Ｌを保持凹部２ｂの開放口２ａの幅Ｗよりも小さくすることができるので、ラッチ部材１を保持凹部２ｂに装着する組み付け作業を容易に行うことができる。
【００３２】
なお、撓み抑止突部１ｈの対向状態は、図６に斜線を付して示すように、一部が重なり合うように対向配置したものに限られず、撓み抑止突部１ｈの対向部全面が重なり合うようにしてもよい。この場合は、対向面積を小さくすれば、回動軸部１ｃの直交方向へのずらし量を小さくでき、組み付け作業の容易性を維持することができる。
【００３３】
【発明の効果】
本発明は以上のように構成されたので、請求項１に係る発明によれば、部品押え部材を下端から上端近傍部に亘って二つに分離して形成され可撓性を有する脚部を回動軸部と略直交方向にずらし、さらに内側に撓ませて各脚部の外側方に突出した回動軸部で部品押え部材をソケット本体部に回動自在に枢着し、定常時においては各脚部の内側面に対向して突設された撓み抑止突部で脚部の内側への撓みを制限し、ソケット本体部に上下動自在に配設された操作部材で部品押え部材を回動操作して部品押え部材の上端にて載置部側に延設された押え部で載置部に載置された電気部品を押圧し、電気部品の端子とコンタクトピンとの接触を確保することができる。したがって、部品押え部材のソケット本体部に対する組み付け作業を容易にすると共に部品押え部材の安定動作を確保することができる。
【００３４】
また、請求項２に係る発明によれば、撓み抑止突部の対向した部分に相当する分だけ各脚部を回動軸部に対して略直交方向にずらして撓み抑止突部を非対向状態にすることができる。したがって、部品押え部材のソケット本体部に対する組み付け作業をより容易にすることができる。
【００３５】
さらに、請求項３に係る発明によれば、回動軸部でソケット本体部の両側端部に設けた保持凹部に係止することができる。したがって、部品押え部を保持凹部に回動自在に枢着することができる。
【００３６】
また、請求項４に係る発明によれば、各脚部の少なくとも一方の下端部に形成した弾性部材受け部で弾性部材による常時上向きの付勢力を受けることができる。したがって、回動軸部を中心に回動して電気部品を押圧することができる。
【００３７】
そして、請求項５に係る発明によれば、弾性部材受け部と反対側の部位に形成した被押圧部で操作部材の下降動作に伴って、この操作部材を当接させることができる。したがって、操作部材の下降動作に伴って操作部材で被押圧部を押圧して部品押え部材を回動させ、電気部品の押圧を解除すると共に載置部を開放することができる。
【図面の簡単な説明】
【図１】本発明による電気部品用ソケットの実施の形態を示す平面図である。
【図２】図１のＡ−Ｂ線断面図である。
【図３】図１のＢ−Ｃ線断面図である。
【図４】本発明による電気部品用ソケットのラッチ部材の右側面図である。
【図５】図４の正面図である。
【図６】図５の底面図である。
【図７】コンタクトピンを示す図で、（ａ）は正面図、（ｂ）は（ａ）の左側面図、（ｃ）は（ａ）の平面図、（ｄ）は（ａ）のＥ−Ｅ線断面図である。
【図８】コンタクトピンの接触部が閉じた状態を示す断面図である。
【図９】コンタクトピンの接触部が開いた状態を示す断面図である。
【図１０】図６のラッチ部材の脚部を回動軸部に略直交方向へずらした状態を示す底面図である。
【図１１】図１０の状態からさらに脚部に対して回動軸部に平行方向の力を加えてたわませた状態を示す正面図である。
【図１２】ラッチ部材がソケット本体部の保持凹部に保持された状態を示す正面図である。
【図１３】図１２の状態にてばね受け部に上方に向かう強い弾性力を作用させたときのラッチ部材の変形状態を示す正面図である。
【図１４】従来のラッチ部材の組み付け状態を示す説明図である。
【図１５】従来のラッチ部材を基にして組み付け作業を容易にするために考えられたラッチ部材の別の構成を示す正面図である。
【図１６】図１５に示すラッチ部材の組み付け方法を説明するための正面図である。
【図１７】図１５に示すラッチ部材の組み付け完了状態を示す正面図である。
【符号の説明】
１…ラッチ部材
１ｂ…押え部
１ｃ…回動軸部
１ｄ…ばね受け部
１ｅ…脚部
１ｆ…内側面
１ｈ…撓み抑止突部
２…ソケット本体部
４…コンタクトピン
５…操作部材
６ａ…載置部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electrical component socket including a component presser member that presses an electrical component, and more specifically, includes a flexure suppression protrusion that faces the inner side surface of each flexible leg formed on the component presser member. By projecting, the present invention relates to an electrical component socket that attempts to ensure the stable operation of the component pressing member as well as the ease of assembly work.
[0002]
[Prior art]
Conventionally, in this type of socket for electrical parts, a mounting part for mounting the electrical part is provided in the socket body part, and a latch member for pressing the electrical part is rotatable to the socket body part on both sides of the mounting part. In addition, there is a structure in which a plurality of contact pins that can contact a terminal of an electrical component are disposed in the mounting portion corresponding portion of the socket main body portion. As shown in FIG. 14, for example, the latch member 1 is formed with a pressing portion 1b for pressing an electric component on the main body 1a and a rotating shaft 1c integrally formed outward from the main body 1a. Protruding. On the other hand, the socket body 2 is formed with a holding recess 2b that rotatably holds the rotating shaft 1c inserted from the opening 2a, and is formed at one side in the orthogonal direction of the rotating shaft 1c. Thus, a locking piece 2d having a locking claw 2c is formed facing the rotating shaft portion 1c, and the locking piece 2d is inserted when the rotating shaft portion 1c is inserted from the opening 2a of the holding recess 2b. In the state shown in the figure, the spring receiving portion 1d of the latch member 1 is urged upward by a spring member not shown in the drawing after being elastically deformed in the direction of the arrow P and the insertion is completed, and the rotating shaft portion 1c is engaged with the locking claw 2c. To prevent the pivot shaft 1c from coming out of the holding recess 2b (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 2003-7416
[Problems to be solved by the invention]
However, in such a conventional socket for electrical components, in order to increase the pressing force for pressing the electrical component with the latch member 1, when the elastic force of the spring member that biases the latch member upward is increased, Due to the elastic force of the spring member, a strong upward force is applied to the rotating shaft portion 1c, and the rotating shaft portion 1c may spread the locking piece 2d in the direction of arrow P in FIG. 14 and come out of the holding recess 2b. is there.
[0005]
Further, in order to improve the assembly workability of the latch member 1 with respect to the holding recess 2b of the socket body 2, the pair of legs 1e are formed from the lower end to the vicinity of the upper end as shown in FIG. A latch member 1 having a configuration in which a rotation shaft portion 1c protrudes outward from a substantially central portion of each leg portion 1e is conceivable. Such a latch member 1 presses the leg portion 1e from the left and right directions as shown by arrows Q and R in FIG. 16 to bend inward, and the dimension L between both ends of the rotating shaft portion 1c shown in FIG. After being compressed so as to be smaller than the width W of the opening 2a of the holding recess 2b formed in the socket body 2 shown in FIG. 16, it is inserted into the opening 2a from above. Thereafter, when the pressure from the left and right directions on the leg 1e is released , the leg 1e returns to the original state. At this time, when the spring receiving portion 1d is urged by a spring member (not shown) in the direction of arrow S in FIG. 17, the latch member 1 rotates by locking the rotation shaft portion 1c with the upper side surface 2e of the holding recess 2b. It is held freely. However, even in such a latch member 1, when the elastic force of the spring member is increased, the end of the rotation shaft portion 1c is locked to the upper side surface 2e of the holding recess 2b. Due to the upward biasing force, an inward force is generated in the leg 1e, and the leg 1e is bent inward. As a result, the latch member 1 may come out of the holding recess 2b in the same manner as shown in FIG. In addition, when it is used in a state where it is partially pulled out, there is a risk that the leg 1e is damaged by a twisting force.
[0006]
SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an electrical component socket that addresses such problems and attempts to ensure stable operation of the component pressing member together with ease of assembly work.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, an electrical component socket according to the present invention includes a socket body portion for placing and holding an electrical component on a placement portion, and a plurality of planting portions corresponding to the placement portion of the socket body portion. A contact pin, a component holding member that pivots and pivots on the socket main body and presses the electric component placed on the mounting portion to ensure contact between the terminal of the electric component and the contact pin, and the socket main body portion And an operation member for rotating the component presser member. The component presser member extends at the upper end to the mounting portion side of the socket body portion. A pressing portion that presses the electrical component, a flexible leg portion that is formed in two parts from the lower end to the vicinity of the upper end, and the socket body portion that protrudes outward from each leg portion. A pivot shaft that is pivotably held by the And a projecting been deflection suppressing projection facing the inside surface of each leg is obtained by the possible formation displacing the leg portions in a substantially perpendicular direction and the rotary shaft portion.
[0008]
With such a configuration, the flexible leg portion formed by separating the component pressing member into two parts from the lower end to the vicinity of the upper end is displaced in a direction substantially orthogonal to the rotating shaft portion, and further bent inward. The component presser member is pivotally attached to the socket main body with a pivot shaft that protrudes outward from each leg, and in a normal state, it is bent so as to face the inner surface of each leg. The restraining protrusion limits the inward bending of the leg, and the component pressing member is rotated by the operation member arranged to move up and down in the socket main body to place the component pressing member at the upper end of the component pressing member. The electric part placed on the placing part is pressed by the presser part extended to ensure contact between the terminal of the electric part and the contact pin. This facilitates the assembly work and ensures stable operation of the component pressing member.
[0009]
Moreover, the bending suppression protrusions provided on the respective leg portions are arranged to face each other so that only a part thereof faces each other. Thereby, each leg part is shifted in a substantially orthogonal direction with respect to the rotating shaft part by an amount corresponding to the part where the bending prevention projecting part faces, so that the deflection restraining projecting part is brought into a non-opposing state.
[0010]
Furthermore, a pair of the component pressing members are provided by locking the rotating shaft portions in holding recesses provided at both end portions of the socket main body portion. Thereby, it engages with the holding recessed part provided in the both-ends part of the socket main-body part by the rotating shaft part.
[0011]
Moreover, the said component pressing member forms the elastic member receiving part which always receives the upward urging | biasing force by an elastic member in the lower end part of at least one of each said leg part. Thereby, the elastic member receiving portion formed at the lower end portion of at least one of the leg portions receives the upward biasing force constantly by the elastic member.
[0012]
And the said component pressing member forms the to-be-pressed part which contact | abuts this operation member in the site | part on the opposite side to the said elastic member receiving part with the downward movement of an operation member. As a result, the pressed portion formed at the portion opposite to the elastic member receiving portion comes into contact with the operating member as the operating member descends.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a plan view showing an embodiment of an electrical component socket according to the present invention. This electrical component socket is applied to, for example, a burn-in test of a BGA (Ball Grid Array) type electrical component, and includes a socket body 2, a contact pin 4, a latch member 1, an operation member 5, and the like. It is equipped with.
[0014]
The socket body 2 is made of synthetic resin and constitutes the body of the socket for electrical parts that holds and holds the electrical parts. As shown in FIG. 2, the top plate 6, the moving member 7, and the lever 8 and.
[0015]
A top plate 6 is fixedly provided at the center of the socket body 2. The top plate 6 has an upper surface portion formed as a placement portion 6a, and an electrical component can be placed and held on the placement portion 6a. As shown in FIG. 1, a guide portion 9 is provided so as to surround the placement portion 6 a, and the corner portion of the guide portion 9 is formed in a slope shape so that the electric component is placed on the placement portion 6 a. In addition, electrical parts can be guided. The mounting portion 6a is formed with an insertion hole 10 through which a contact pin 4 described later is inserted at a position corresponding to the terminal of the mounted electrical component.
[0016]
Further, as shown in FIG. 2, a moving member 7 is disposed below the top plate 6. The moving member 7 moves up and down to displace a contact pin 4 described later, and is biased upward by a spring member 11 and is held up and down with respect to the socket body 2.
[0017]
Further, as shown in FIGS. 1 and 2, a pair of levers 8 are pivotally attached to the vicinity of both side ends of the socket body 2 at substantially left-right symmetrical positions. The lever 8 rotates to move the moving member 7 up and down. The lever 8 is formed of a metal plate, and is integrally formed with the socket body 2 made of synthetic resin in the fitting hole 8b provided in the base end 8a. The boss 2 a is fitted so as to be rotatable, and the pressing portion 8 c is brought into contact with the upper surface of the moving member 7. Then, the pressed portion 8d provided at the upper end corner is rotated inward by being pressed downward by the operation member 5 described later, and the moving member 7 is pressed and moved downward by the pressing portion 8c. Yes.
[0018]
A set of latch members 1 is provided at both end portions of the mounting portion 6 a of the socket body portion 2. The latch member 1 is pivotally attached to the socket body 2 and rotates to press the electrical component placed on the placement portion 6a, thereby securing the contact between the terminal of the electrical component and the contact pin 4. It becomes a member and is integrally formed of a synthetic resin. As shown in FIGS. 4 and 5, the latch member 1 includes a holding portion 1 b that extends from the upper end to the mounting portion 6 a side of the socket body 2 and presses an electrical component, and a lower end portion near the upper end. A leg portion 1e which is formed to be divided into two and has flexibility, and a pivot shaft portion 1c which protrudes outward of each leg portion 1e and is rotatably held by the socket main body 2; Each of the leg portions 1e is provided with a deflection suppressing protrusion 1h that protrudes from the inner surface of the leg 1e. The leg 1e can be displaced in a direction substantially orthogonal to the rotation shaft 1c. And this deflection | deviation suppression protrusion 1h is arrange | positioned so that only one part may oppose, as shown with the oblique line in FIG.
[0019]
Furthermore, the latch member 1 is formed with a spring receiving portion 1d as an elastic member receiving portion at the lower end portion of the right leg portion 1e as shown in FIGS. 5 and 6, and as shown in FIG. Is inserted into the holding recess 2b provided in the upper end and is always urged by the spring member 12 in the direction of pressing the electrical component, and the rotary shaft 1c is locked to the upper side surface of the holding recess (not shown) and held rotatably. Has been.
[0020]
As shown in FIG. 4, the latch member 1 is provided with a pressed portion 1 g at a portion opposite to the spring receiving portion 1 d, and is pressed by the operation member 5 along with the lowering operation of the operation member 5 described later. To release the pressing of the electric parts and to open the mounting portion 6a.
[0021]
Further, a plurality of contact pins 4 are implanted in a portion corresponding to the placement portion 6 a of the socket main body portion 2. This contact pin 4 is for electrically connecting the terminal of the electrical component and the wiring part of the circuit board disposed at the lower part of the socket body part 2, and as shown in FIG. It is arranged in a matrix in a state where the insertion hole 10 is inserted and the tip end protrudes toward the mounting portion 6a and the opposite end protrudes from the lower surface of the socket body 2 (see FIG. 2). ing.
[0022]
This contact pin 4 is formed by pressing a plate material having elasticity and excellent conductivity. As shown in FIG. 7, a pair of elastic pieces 4a and 4b is formed on the upper side, and the lower side One solder tail portion 4c is formed. The pair of elastic pieces 4a and 4b are formed to face each other when the base portion 4d on the lower end side is bent into a substantially U shape as shown in FIG. Further, contact portions 4e and 4f, which are terminals of electrical components, for example, contact with one side of a solder ball, respectively, are formed on the upper end portions (tip portions) of the elastic pieces 4a and 4b. 4f, the solder balls are sandwiched and electrically connected.
[0023]
Further, the pair of elastic pieces 4a and 4b of the contact pin 4 is formed with a bent portion 4g bent in a substantially U shape, so that the moving member 7 is moved downward as shown in FIG. As shown in FIG. 9, the bent portions 4g are pressed by the cam portion 7a provided on the moving member 7 to open both contact portions 4e and 4f.
[0024]
Then, as shown in FIGS. 8 and 9, the solder tail portion 4c and the base portion 4d of the contact pin 4 are press-fitted into the press-fitting hole 2f formed in the socket main body portion 2, and the removal formed in the base portion 4d. The stopper 4m bites into the socket body 2 to prevent the contact pin 4 from coming off upward. The solder tail 4c protruding downward from the socket body 2 is inserted into each through hole of a circuit board (not shown) and soldered.
[0025]
Further, as shown in FIG. 1, an operation member 5 is provided on the outer peripheral portion of the socket body 2 so as to be movable up and down. The operation member 5 moves up and down to drive the lever 8, moves the moving member 7 in the up and down direction, opens and closes the pair of contact portions 4 e and 4 f of the contact pin 4, and rotates the latch member 1. The mounting portion 6a is opened and closed, and is constantly urged upward by another spring member 13 as shown in FIG. As shown in the figure, the inner side surface of the operation member 5 is formed as a lever pressing portion 5a, and as shown in FIG. 3, the lower end portion is formed as a latch pressing portion 5b. And the to-be-pressed part 1g of the latch member 1 can be pressed now.
[0026]
Next, a method of assembling the latch member 1 to the socket body 2 will be described with reference to FIGS.
The latch member 1 is in a state shown in FIG. 6 in a steady state. At this time, as shown in FIG. 10, forces in opposite directions of arrows T and U are forcibly applied to the respective leg portions 1 e, and the leg portions 1 e are shifted until the deflection suppressing protrusions 1 h are in the non-opposing state. Further, while maintaining this state, as shown in FIG. 11, each leg portion 1e is pressed in the directions of arrows V and X from the left and right directions, and the lower end edge of the deflection suppressing projection 1h is the inner side surface 1f of the leg 1e. Bend until it touches. Thereby, the dimension L1 between both ends of the rotation shaft portion 1c becomes smaller than the width W of the opening 2a of the holding recess 2b provided in the socket main body 2, and the latch member 1 can be inserted into the holding recess 2b. And after inserting the latch member 1 in the holding | maintenance recessed part 2b, if all the force given to each leg part 1e is cancelled | released, each leg part 1e will return to the steady state shown in FIG. Next, when an upward elastic force is applied to the spring receiving portion 1d of the latch member 1 by a spring member (not shown), as shown in FIG. 12, the end portion of the rotating shaft portion 1c becomes the upper side surface of the holding recess 2b. The latch member 1 is held rotatably by being latched to 2e.
[0027]
In this case, if the elastic force in the direction of arrow Y shown in FIG. 13 is increased in order to increase the pressing force of the electric component by the latch member 1, both ends of the rotating shaft 1c are locked to the upper side 2e of the holding recess 2b. Therefore, the latch member 1 generates a force that bends the leg 1e inward. However, in this case, the deflection suppressing protrusion 1h formed facing the inner side surface 1f of the leg 1e is in contact with the leg 1e to limit the amount of deflection of the leg 1e. It does not become smaller than the width W of the opening 2a of the holding recess 2b. Therefore, the both end portions of the rotating shaft portion 1c are maintained in the state of being locked to the upper side surface 2e of the holding recess 2b.
[0028]
Next, the operation of the thus configured electrical component socket will be described.
First, when the operating member 5 is pressed downward, as shown in FIG. 3, the pressed portion 1g of the latch member 1 is pressed by the latch pressing portion 5b of the operating member 5, and the latch member 1 is centered on the rotating shaft portion 1c. Rotate clockwise in the figure to open the mounting portion 6a so that the electric component can be mounted. At the same time, the pressed portion 8 d of the lever 8 shown in FIG. 2 is pressed by the lever pressing portion 5 a of the operation member 5, and rotates inwardly about the boss 2 a formed integrally with the socket body 2. Then, the moving member 7 is pressed downward and moved by the pressing portion 8c. As a result, the bent portion 4g of the contact pin 4 shown in FIG. 8 is pressed by the cam portion 7a provided on the moving member 7, and the contact portions 4e and 4f of the contact pin 4 are opened as shown in FIG. Here, when the electrical component is dropped onto the mounting portion 6a from above, the solder balls 14a of the electrical component 14 are inserted as shown in FIG.
[0029]
In such a state, the pressing of the operation member 5 is released. As a result, the pressing of the latch member 1 against the pressed portion 1g by the operating member 5 is released, and the latch member 1 rotates counterclockwise in FIG. . At the same time, the pressure on the lever 8 by the operating member 5 is also released, so that the moving member 7 rises, the cam portion 7a releases the pressure on the bent portion 4g of the contact pin 4, and both the contact portions 4e and 4f are closed. . As a result, the contact pin 4 can grasp the solder ball 14a of the electrical component 14 at both contact portions 4e and 4f and make electrical contact with the circuit board disposed on the lower surface of the socket body portion 2. To.
[0030]
As described above, the electrical component socket according to the present invention separates the latch member 1 into two pieces from the lower end to the vicinity of the upper end to form a pair of flexible leg portions 1e. Since the bending restraining protrusion 1h is provided so as to face the side surface 1f so as to partially overlap, even when the leg member 1e is bent inward due to the strong elastic force of the spring member 12, the bending restraining protrusion 1h. It is possible to prevent the latch member 1 from coming out of the holding recess 2b of the socket main body 2 by restricting the amount of bending by the portions 1h contacting each other. Thereby, stable operation of the latch member 1 can be ensured.
[0031]
In addition, the leg portion 1e is shifted in the direction orthogonal to the rotation shaft portion 1c until the bending suppression protrusion 1h is in a non-opposing state, and then bent inward to maintain the dimension L between both ends of the rotation shaft portion 1c. Since it can be made smaller than the width W of the opening 2a of 2b, the assembling work for mounting the latch member 1 to the holding recess 2b can be easily performed.
[0032]
In addition, the opposing state of the bending suppression protrusion 1h is not limited to the one arranged so as to overlap with each other as shown by hatching in FIG. 6, and the entire opposing portion of the bending suppression protrusion 1h overlaps. It may be. In this case, if the facing area is reduced, the shift amount of the rotating shaft 1c in the orthogonal direction can be reduced, and the ease of assembling work can be maintained.
[0033]
【The invention's effect】
Since the present invention is configured as described above, according to the first aspect of the present invention, the leg portion having flexibility is formed by separating the component pressing member into two parts from the lower end to the vicinity of the upper end. The component presser member is pivotally attached to the socket body with the pivot shaft that is displaced in a direction substantially orthogonal to the pivot shaft and further bent inward and protrudes outward of each leg. Restricts the inward bending of the leg by a deflection restraining projection that projects from the inner surface of each leg, and the component presser member is operated by an operation member that can be moved up and down on the socket body. The electrical component placed on the placement part is pressed by the holding part extended to the placement part side at the upper end of the part-holding member by rotating, and the contact between the terminal of the electrical part and the contact pin is secured. be able to. Therefore, it is possible to facilitate the assembling work of the component pressing member to the socket main body and to ensure the stable operation of the component pressing member.
[0034]
According to the second aspect of the present invention, each leg portion is shifted in a substantially orthogonal direction with respect to the rotation shaft portion by an amount corresponding to the opposed portion of the deflection suppressing projection, and the deflection suppressing projection is not opposed. Can be. Therefore, the work of assembling the component pressing member to the socket body can be made easier.
[0035]
Furthermore, according to the invention which concerns on Claim 3, it can be latched by the holding | maintenance recessed part provided in the both-ends part of the socket main-body part by the rotating shaft part. Therefore, the component pressing portion can be pivotally attached to the holding recess.
[0036]
Moreover, according to the invention which concerns on Claim 4, the upward biasing force by an elastic member can always be received by the elastic member receiving part formed in the at least one lower end part of each leg part. Therefore, the electric component can be pressed by turning around the turning shaft portion.
[0037]
According to the fifth aspect of the present invention, the operation member can be brought into contact with the pressed portion formed at the portion opposite to the elastic member receiving portion as the operation member is lowered. Therefore, as the operation member is lowered, the operation member presses the pressed portion to rotate the component pressing member, thereby releasing the pressing of the electrical component and opening the mounting portion.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of an electrical component socket according to the present invention.
FIG. 2 is a cross-sectional view taken along the line AB in FIG.
FIG. 3 is a cross-sectional view taken along line B-C in FIG.
FIG. 4 is a right side view of a latch member of the electrical component socket according to the present invention.
FIG. 5 is a front view of FIG. 4;
6 is a bottom view of FIG. 5. FIG.
7A and 7B are diagrams showing contact pins, where FIG. 7A is a front view, FIG. 7B is a left side view of FIG. 7A, FIG. 7C is a plan view of FIG. FIG.
FIG. 8 is a cross-sectional view showing a state in which a contact portion of a contact pin is closed.
FIG. 9 is a cross-sectional view showing a state in which a contact portion of a contact pin is opened.
10 is a bottom view showing a state in which a leg portion of the latch member of FIG. 6 is shifted in a direction substantially orthogonal to a rotation shaft portion.
11 is a front view showing a state in which a force in a direction parallel to the rotation shaft portion is further applied to the leg portion from the state shown in FIG.
FIG. 12 is a front view showing a state where the latch member is held in the holding recess of the socket main body.
13 is a front view showing a deformed state of the latch member when a strong elastic force directed upward is applied to the spring receiving portion in the state of FIG.
FIG. 14 is an explanatory view showing an assembled state of a conventional latch member.
FIG. 15 is a front view showing another configuration of the latch member conceived for facilitating the assembling work based on the conventional latch member.
16 is a front view for explaining a method of assembling the latch member shown in FIG.
17 is a front view showing a state where assembly of the latch member shown in FIG. 15 is completed. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Latch member 1b ... Pressing part 1c ... Rotary shaft part 1d ... Spring receiving part 1e ... Leg part 1f ... Inner side surface 1h ... Deflection suppression protrusion 2 ... Socket main-body part 4 ... Contact pin 5 ... Operation member 6a ... Mounting Part

Claims

A socket main body for mounting and holding electrical components on the mounting section, a plurality of contact pins implanted corresponding to the mounting section of the socket main body, and pivotally mounted on the socket main body for rotation. The component pressing member that presses the electrical component placed on the mounting portion to ensure the contact between the terminal of the electrical component and the contact pin, and the operation that pivots the component pressing member that is disposed on the socket body so as to be movable up and down. A socket for an electrical component having a member,
The component pressing member is formed to be separated into two parts from the lower end to the vicinity of the upper end, and the pressing portion that extends to the mounting portion side of the socket main body at the upper end and presses the electrical component. A leg portion having a pivot, a pivot shaft portion protruding outward of each leg portion and rotatably held by the socket body portion, and a flexure projecting from the inner surface of each leg portion. An electrical component socket, comprising: a restraining protrusion, wherein each leg portion can be displaced in a direction substantially orthogonal to the rotation shaft portion.

The electrical component socket according to claim 1, wherein the deflection suppressing protrusions provided on the respective leg portions are arranged so that only a part thereof is opposed.

2. The socket for an electrical component according to claim 1, wherein a pair of the component pressing members are provided by locking the rotating shaft portions in holding recesses provided at both end portions of the socket main body portion.

2. The electrical component socket according to claim 1, wherein the component pressing member is formed with an elastic member receiving portion that receives an upward biasing force by an elastic member at least at one lower end portion of each leg portion.

5. The electric component according to claim 4, wherein the component pressing member is formed with a pressed portion that comes into contact with the operation member in accordance with a lowering operation of the operation member at a portion opposite to the elastic member receiving portion. Socket for parts.