JP4219177B2

JP4219177B2 - Socket for electrical parts

Info

Publication number: JP4219177B2
Application number: JP2003013804A
Authority: JP
Inventors: 謙次早川
Original assignee: Enplas Corp
Current assignee: Enplas Corp
Priority date: 2003-01-22
Filing date: 2003-01-22
Publication date: 2009-02-04
Anticipated expiration: 2023-01-22
Also published as: JP2004227904A

Description

【０００１】
【発明の属する技術分野】
本発明は、ＩＣパッケージなどの電気部品を着脱可能に保持して外部の測定器に電気的に接続させる電気部品用ソケットに関し、詳しくは、上記電気部品を押圧して固定する押圧カバーを閉じた状態のときにその全体の高さを低くすることができる電気部品用ソケットに関するものである。
【０００２】
【従来の技術】
一般に、ＩＣパッケージなどの電気部品についての性能検査を行うときには、電気部品を着脱可能に保持して外部の測定器に電気的に接続させる電気部品用ソケットが用いられる。従来のこの種の電気部品用ソケットのうち、いわゆるクラムシェルタイプのものは、電気部品を載置する載置部が設けられたソケット本体と、このソケット本体の一端側に設けられた回転軸にて開閉可能に軸支され閉じた状態で載置部に載置された電気部品を押圧して固定する押圧カバーと、前記ソケット本体の一端側に設けられた他の回転軸にて開閉可能に軸支され押圧カバーが閉じる方向に作動力を与えて閉じるレバー部材とを備えて成る。
【０００３】
そして、このような電気部品用ソケットを使用して電気部品を保持するときには、まずレバー部材及び押圧カバーを開いてソケット本体の載置部に電気部品を載置し、次にこのレバー部材を閉じて押圧する。これにより、レバー部材から作動力を受けて押圧カバーが閉じ、その状態で載置部に載置された電気部品を押圧して固定するようになっていた。このとき、電気部品の各接続端子は、電気部品用ソケットの各コンタクトピンに電気的に接続するようになっていた（例えば、特許文献１参照。）。
【０００４】
【特許文献１】
特許第３０２２５９３号明細書（第３頁、第１〜３図）
【０００５】
【発明が解決しようとする課題】
しかし、特許文献１に記載された技術は、押圧カバーを軸支する回転軸がソケット本体の載置部の高さよりも高い位置に配設されており、またレバー部材が押圧カバーの上面を押圧して押圧カバーに作動力を与えるようになっていたため、ソケット本体の載置部に載置された電気部品を押圧固定する押圧カバーを閉じた状態のときにその全体の高さが高かった。
【０００６】
また、例えばガルウィングタイプのような接続端子の少ない電気部品を保持する電気部品用ソケットに適用されたものであって、電気部品の各接続端子に対応して設けられたコンタクトピンの本数は少なかった。そのため、レバー部材を押圧してソケット本体の載置部に載置された電気部品を押圧固定したときに各コンタクトピンの弾性変形により発生する反発力は小さく、レバー部材に大きな力を加えずに電気部品を押圧固定することができた。これに対し、例えばＢＧＡやＬＧＡなどの下面に多数個の接続端子が設けられた電気部品を保持する電気部品用ソケットに適用した場合には、レバー部材に大きな力を加えて押圧カバーを押圧しなければならなかった。すなわち、電気部品の接続端子数の増加に伴って、電気部品用ソケットのコンタクトピンの本数は増加する傾向にあり、この多数本のコンタクトピンの弾性変形により反発力が大きくなることがあった。したがって、多数個の接続端子を備えた電気部品を押圧固定するためには、その反発力よりも大きな力でレバー部材を押圧しなければならず、電気部品用ソケットを操作する自動機の負担が大きくなるという問題点があった。
【０００７】
また、このような電気部品用ソケットに関する他の技術として、電気部品を押圧固定する押圧カバーと、閉じた押圧カバーに力を加えて固定する固定手段とを備えたものもあったが、このような電気部品用ソケットの場合には、押圧カバーを閉じる動作と、この閉じた押圧カバーに対して固定手段で固定する動作との２回の動作が必要であった。したがって、１回の動作によってレバー部材を閉じて押圧カバーで電気部品を押圧固定することができなかった。
【０００８】
そこで、本発明は、このような問題点に対処し、電気部品用ソケットの載置部に載置された電気部品を押圧して固定する押圧カバーを閉じた状態のときにその全体の高さを低くすることができる電気部品用ソケットを提供することを目的とする。
【０００９】
【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、電気部品を載置する載置部が設けられたソケット本体と、このソケット本体の一端側に基端部を第１の回転軸により開閉可能に軸支されて設けられ、閉じた状態で上記載置部に載置された電気部品を押圧して固定する押圧カバーと、上記ソケット本体の上記押圧カバーが軸支された同じ一端側に基端部を第２の回転軸により開閉可能に軸支されて設けられ、上記押圧カバーに閉じる方向の作動力を与えて閉じるレバー部材と、を有する電気部品用ソケットであって、上記押圧カバーは、上記第１の回転軸に直交する側辺の一端側と他端側との間の略中央部に操作部を外方に向かって突設して形成され、その軸支部を上記ソケット本体の載置部の高さよりも低い位置とし、上記レバー部材は、平面視で略コ字形の形状を有し、その先端部から平行に延びた左右の腕部の間隔が上記押圧カバーの上記第１の回転軸に直交する側辺の間隔よりも広く形成され、上記左右の腕部の先端部を上記ソケット本体の載置部の高さよりも低い位置で上記第２の回転軸によって軸支されて成り、該左右の腕部で上記押圧カバーの操作部を押圧して上記押圧カバーに閉じる方向の作動力を与えるとした。
【００１０】
このような構成により、第１の回転軸に直交する側辺の一端側と他端側との間の略中央部に操作部を外方に向かって突設した押圧カバーは、その基端部をソケット本体の一端側にてソケット本体の載置部の高さよりも低い位置で第１の回転軸により軸支されて開閉し、閉じた状態で上記載置部に載置された電気部品を押圧して固定し、平面視で略コ字形の形状を有し、その先端部から平行に延びた左右の腕部が上記押圧カバーの上記第１の回転軸に直交する側辺の間隔よりも間隔が広く形成されたレバー部材は、左右の腕部の先端部をソケット本体の上記押圧カバーが軸支された同じ一端側にてソケット本体の載置部の高さよりも低い位置で第２の回転軸により軸支されて開閉し、上記左右の腕部で上記押圧カバーの操作部を押圧して押圧カバーに閉じる方向の作動力を与える。
【００１１】
また、上記レバー部材の軸支部は、上記ソケット本体の一端側と他端側との間にて上記押圧カバーの軸支部よりも中央寄りに位置するものである。これにより、上記レバー部材の軸支部が支点となり、この軸支部からの距離が遠い力点に力を加えると、軸支部からの距離が近い作用点で大きな作動力を得ることができるので、レバー部材に加える力が小さいときにも、押圧カバーに大きな作動力が与えられる。
【００１３】
そして、上記押圧カバーは開方向に付勢されており、上記レバー部材は押圧カバーの操作部と係合して開放されるようになっている。これにより、上記レバー部材の閉状態を解除すると、開方向に付勢された押圧カバーが開き、レバー部材が押圧カバーの操作部と係合して開放される。
【００１４】
【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斜視図であり、図２は図１に示す電気部品用ソケットを分解した状態を示す斜視図である。この電気部品用ソケットは、図１に示すＩＣパッケージ１などの電気部品についての性能検査を行う工程において、ＩＣパッケージ１を着脱可能に保持して外部の測定器（図示省略）に電気的に接続する治具で、ソケット本体２と、サポートプレート３と、フローティング部材４と、押圧カバー５と、レバー部材６と、ラッチ部材７とを備えて成る。
【００１５】
図１に示すソケット本体２は、ＩＣパッケージ１などの電気部品を載置するものであって、強度が高く、かつ耐熱性に優れた樹脂によって平板状に成型されている。このソケット本体２の略中央部には、図２に示すように、ＩＣパッケージ１を載置する載置部８が設けられており、その上面には複数本のコンタクトピン（図示せず）が取り付けられ、ＩＣパッケージ１（図１参照）の下面に設けられた複数個の接続端子との電気的接触を図るようになっている。
【００１６】
また、図２に示すように、ソケット本体２の載置部８の左右両側には固定片９が立設されている。この固定片９は、後述するサポートプレート３を位置決めするもので、ソケット本体２と一体的に成型されている。さらに、ソケット本体２の一端側（図２中における右側の一側辺）の左右両側には、第１軸受部１０が設けられている。この第１軸受部１０は、後述する押圧カバー５を軸支する第１の回転軸としてのシャフト１３を支持するもので、このシャフト１３を通すための貫通孔１０ａが形成されている。このとき、第１軸受部１０の貫通孔１０ａはソケット本体２の載置部８の高さよりも低い位置に形成されており、この貫通孔１０ａに通されるシャフト１３は、ソケット本体２の載置部８の高さよりも低い位置に配設される。
【００１７】
さらに、図２に示すように、ソケット本体２の押圧カバー５が軸支された同じ一端側にて載置部８の左右両側の所定の位置には、第２軸受部１１が立設されている。この第２軸受部１１は、後述するレバー部材６を軸支する第２の回転軸としてのシャフト１６を支持するもので、このシャフト１６を通すための貫通孔１１ａが形成されている。このとき、第２軸受部１１は、ソケット本体２の一端側と他端側との間にて押圧カバー５の軸支部よりも中央寄りに位置するようにされている。また、この第２軸受部１１の貫通孔１１ａは、第１軸受部１０の貫通孔１０ａと同様に、ソケット本体２の載置部８の高さよりも低い位置に形成されており、この貫通孔１１ａに通されるシャフト１６は、ソケット本体２の載置部８の高さよりも低い位置に配設される。
【００１８】
さらにまた、図２に示すように、ソケット本体２の他端側（図２中における左側の一側辺）にて載置部８の左右両側には、他の軸受部１２が設けられている。この他の軸受部１２は、後述するラッチ部材７を軸支するシャフト１７を支持するもので、このシャフト１７を通すための貫通孔１２ａが形成されている。
【００１９】
また、図１に示すように、ソケット本体２の載置部８の左右両側には、サポートプレート３が配置されている。このサポートプレート３は、ソケット本体２が変形しないように支持するもので、金属でできており、図２に示すように、ソケット本体２に設けられた左右両側の固定片９及び第２軸受部１１、他の軸受部１２によって位置決めされている。なお、図１に示すように、この左右のサポートプレート３は、それぞれ固定ピン１９，１９によってソケット本体２に固定されている。
【００２０】
さらに、図１に示すように、ソケット本体２の載置部８の上方には、フローティング部材４が配設されている。このフローティング部材４は、ＩＣパッケージ１の外側縁部を載置部８より先に受け止めるもので、ＩＣパッケージ１を略水平状態に保持した状態で上下方向に移動可能に形成されている。このフローティング部材４の具体的な構造は、図２に示すように、載置部８の上面と略同等の大きさの枠形状を有し、その四隅部にはＩＣパッケージ１の外側面を規制して位置決めする案内部４ａが立設されている。これにより、フローティング部材４の上方からＩＣパッケージ１を落とし込んだ際に、ＩＣパッケージ１を所定の位置に誘い込んで受け止めることができる。また、このフローティング部材４を押圧することにより、ＩＣパッケージ１を略水平状態に保持した状態で載置部８にまで移動して載置することができる。
【００２１】
さらにまた、図１に示すように、ソケット本体２の一端側に設けられた第１軸受部１０には、押圧カバー５がその基端部をシャフト１３により開閉可能に軸支されて設けられている。この押圧カバー５は、図３に示すように、閉じた状態で載置部８に載置されたＩＣパッケージ１を押圧して固定するもので、金属で枠状体に形成され、シャフト１３に直交する両側面（側辺）から平行に延びた左右の腕部５ａの先端部（基端部）には、長孔５ｂが形成されている。そして、この長孔５ｂをソケット本体２に設けられた第１軸受部１０の貫通孔１０ａに合致させ、左右それぞれにシャフト１３を通すことにより、押圧カバー５は第１軸受部１０にシャフト１３で開閉可能に軸支されることになる。また、押圧カバー５の内側には、左右のシャフト１４に介装された弦巻ばね１５が取り付けられている。これにより、押圧カバー５は開方向に付勢されており、レバー部材６は後述する押圧カバー５の操作部２０と係合して開放されるようになっている。
【００２２】
また、図２に示すように、この押圧カバー５は、シャフト１３に直交する両側面の一端側と他端側との間の略中央部に操作部２０，２０を備えている。この操作部２０，２０は、後述するレバー部材６からの作動力を受ける作用点となるもので、その軸部の先端に鍔部が形成されている。これにより、後述するレバー部材６により押圧カバー５のシャフト１３に直交する両側面に設けられた操作部２０を押圧して閉じた状態（図３参照）のときにレバー部材６を位置決めすることができる。
【００２３】
また、図１に示すように、ソケット本体２に設けられた第２軸受部１１には、レバー部材６がその基端部をシャフト１６により開閉可能に軸支されて設けられている。このレバー部材６は、押圧カバー５に閉じる方向の作動力を与えて閉じるもので、金属でできており、図２に示すように、平面視でコ字形の形状を有し、その先端部６ａから平行に延びた左右の腕部６ｂの先端部（基端部）には丸孔６ｃが形成されている。また、この左右の腕部６ｂ，６ｂは、押圧カバー５のシャフト１３に直交する両側面の間隔よりも間隔が広く形成されている。そして、このレバー部材６の左右の腕部６ｂに形成された丸孔６ｃを、ソケット本体２に設けられた第２軸受部１１の貫通孔１１ａに合致させ、左右それぞれにシャフト１６を通すことにより、レバー部材６は第２軸受部１１にシャフト１６で開閉可能に軸支されることになる。
【００２４】
そして、図１に示すように、ソケット本体２の他端側（図２中における左側の一側辺）に設けられた他の軸受部１２には、ラッチ部材７がシャフト１７により回動可能に軸支されて取り付けられている。このラッチ部材７は、レバー部材６を閉じたときにソケット本体２への閉状態を保持するもので、図２に示すように、レバー部材６の先端部６ａを係止可能なクランプ爪７ａが形成されており、その側部に形成された止め孔７ｂを他の軸受部１２に形成された貫通孔１２ａに合致させ、シャフト１７を通して軸支されるようになっている。また、このシャフト１７にはスプリング１８が介装され、ラッチ部材７が係止方向に付勢されるようになっている。
【００２５】
次に、このように構成された電気部品用ソケットを使用してＩＣパッケージ１を保持する動作について、図４〜図５を参照して説明する。まず、図４に示すように、レバー部材６及び押圧カバー５を開き、ＩＣパッケージ１をソケット本体２の載置部８の上方に配設されたフローティング部材４の上方から矢印Ｃの方向に落とし込む。これにより、ＩＣパッケージ１は、フローティング部材４の四隅部に立設された案内部４ａによりその外側面を規制して位置決めされ、所定の位置に誘い込まれて受け止められる（図１参照）。
【００２６】
次に、図４に示すように、レバー部材６を閉じる力を矢印Ｄ方向に加えてレバー部材６を閉じると、レバー部材６の腕部６ｂが押圧カバー５に設けられた操作部２０を押圧し、この押圧カバー５が閉じる方向に作動力を受けて矢印Ｅの方向に閉じる。その後、図５に示すように、レバー部材６の先端部６ａをソケット本体２の他端側に設けられたラッチ部材７で係止して閉じた状態を保持する（図３参照）。ここで、上述したように、押圧カバー５及びレバー部材６を夫々軸支するシャフト１３，１６がソケット本体２の載置部８の高さよりも低い位置に配設されており、レバー部材６が押圧カバー５に設けられた操作部２０を押圧して作動力を与えるものであるので、レバー部材６及び押圧カバー５を閉じた状態における電気部品用ソケット全体の高さを従来のものと比べて低くすることができる。
【００２７】
そして、矢印Ｆに示すように、レバー部材６の先端部６ａ（力点）に力を加えて押圧する。ここで、上述したように、レバー部材６を軸支する回転軸となるシャフト１６は、ソケット本体２の一端側と他端側との間にて押圧カバー６の第１の回転軸となるシャフト１３よりも中央寄りに位置している。具体的には、図５において、閉じた状態の押圧カバー５の操作部２０の右側近傍に配設されている。これにより、レバー部材６の第２の回転軸となるシャフト１６が支点となり、このシャフト１６（支点）からの距離が遠い先端部６ａ（力点）に力Ｆを加えると、当該シャフト１６（支点）からの距離が近い操作部２０が作用点となって押圧カバー５に作動力が与えられ、この操作部２０（作用点）で大きな作動力を得ることができる。これにより、レバー部材６に加える力が小さいときにも、梃子の原理により押圧カバー５の操作部２０に大きな作動力を与えることができる。
【００２８】
したがって、例えばＢＧＡやＬＧＡなどの下面に多数個の接続端子が設けられたＩＣパッケージ１を保持する電気部品用ソケットにおいても、レバー部材６を小さい力で閉じて押圧することができ、ソケット本体２の載置部８に載置されたＩＣパッケージ１を押圧して固定することができる。また、１回の操作で、レバー部材６を閉じると共に押圧カバー５に大きな作動力を与えることができるため、電気部品用ソケットを操作する自動機の負担を小さくすることができる。
【００２９】
そして、このようにしてソケット本体２の載置部８に載置され、押圧カバー５により押圧されたＩＣパッケージ１の保持を解除するときには、ソケット本体２の他端側に設けられたラッチ部材７に開く力を、矢印Ｇに示す方向に加える。これにより、レバー部材６の先端部６ａの係止が外れ、開く方向に付勢された押圧カバー５が開き、レバー部材６は押圧カバー５の操作部２０と係合して開放される（図１参照）。また、次のＩＣパッケージ１を保持するときには、その次のＩＣパッケージ１をソケット本体２のフローティング部材４の上方から矢印Ｃの方向に落とし込み、上述した操作を繰り返す。
【００３０】
【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、第１の回転軸に直交する側辺の一端側と他端側との間の略中央部に操作部を外方に向かって突設した押圧カバーは、その基端部をソケット本体の一端側にてソケット本体の載置部の高さよりも低い位置で第１の回転軸により軸支されて開閉し、閉じた状態で上記載置部に載置された電気部品を押圧して固定することができ、平面視で略コ字形の形状を有し、その先端部から平行に延びた左右の腕部が上記押圧カバーの上記第１の回転軸に直交する側辺の間隔よりも間隔が広く形成されたレバー部材は、左右の腕部の先端部をソケット本体の上記押圧カバーが軸支された同じ一端側にてソケット本体の載置部の高さよりも低い位置で第２の回転軸により軸支されて開閉し、上記左右の腕部で上記押圧カバーの操作部を押圧して押圧カバーに閉じる方向の作動力を与えることができる。したがって、１回のレバー部材の操作だけで押圧カバーを閉じることができ、且つ押圧カバーを閉じた状態における電気部品用ソケット全体の高さを低くすることができる。
【００３１】
また、請求項２に係る発明によれば、上記レバー部材の軸支部を、ソケット本体の一端側と他端側との間にて押圧カバーの軸支部よりも中央寄りに位置するものとしたことにより、レバー部材の回転軸が支点となり、この回転軸からの距離が遠いレバー部材の先端部（力点）に力を加えると、上記回転軸からの距離が近い押圧カバーの操作部（作用点）で大きな作動力を得ることができるので、レバー部材に加える力が小さいときにも、押圧カバーに大きな作動力を与えることができる。これにより、作動力の重いクラムシェルタイプの電気部品用ソケットに適用した場合でも、小さい力でレバー部材を閉じて電気部品を押圧することができる。したがって、電気部品用ソケットを操作する自動機の負担を小さくすることができる。
【００３３】
そして、請求項３に係る発明によれば、上記押圧カバーは開方向に付勢されており、上記レバー部材は押圧カバーの操作部と係合して開放されるようになっていることにより、上記レバー部材の閉状態を解除すると、開方向に付勢された押圧カバーが開き、レバー部材が押圧カバーの操作部と係合して開放することができる。したがって、上記レバー部材の閉状態を解除するだけで押圧カバーを開くことができ、電気部品用ソケットを操作する自動機の負担を小さくすることができる。
【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斜視図であり、ソケット本体に対しレバー部材及び押圧カバーが開いた状態を示すものである。
【図２】図１に示す電気部品用ソケットを分解した状態を示す斜視図である。
【図３】図１に示す電気部品用ソケットの斜視図であり、ソケット本体に対しレバー部材及び押圧カバーを閉じてＩＣパッケージを押圧して保持した状態を示すものである。
【図４】図１に示す電気部品用ソケットのＡ−Ａ線断面図である。
【図５】図３に示す電気部品用ソケットのＢ−Ｂ線断面図である。
【符号の説明】
１…ＩＣパッケージ
２…ソケット本体
３…サポートプレート
４…フローティング部材
５…押圧カバー
６…レバー部材
６ａ…先端部
６ｂ…腕部
７…ラッチ部材
８…載置部
１０…第１軸受部
１１…第２軸受部
１３…シャフト（第１の回転軸）
１５…弦巻ばね
１６…シャフト（第２の回転軸）
１８…スプリング
２０…操作部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electrical component socket for detachably holding an electrical component such as an IC package and electrically connecting it to an external measuring instrument, and more specifically, a pressure cover for pressing and fixing the electrical component is closed. The present invention relates to a socket for an electrical component that can reduce the overall height when in a state.
[0002]
[Prior art]
In general, when performing a performance test on an electrical component such as an IC package, an electrical component socket is used in which the electrical component is detachably held and electrically connected to an external measuring instrument. Among this type of conventional socket for electrical parts, a so-called clamshell type socket has a socket body provided with a placement portion for placing electrical parts, and a rotary shaft provided on one end side of the socket body. It can be opened and closed with a pressing cover that presses and fixes the electrical component mounted on the mounting portion in a closed state that is pivotally supported so that it can be opened and closed, and another rotating shaft provided on one end side of the socket body A lever member that is pivotally supported and closes by applying an operating force in a direction in which the pressing cover closes.
[0003]
When holding an electrical component using such an electrical component socket, first the lever member and the pressure cover are opened to place the electrical component on the mounting portion of the socket body, and then the lever member is closed. And press. Accordingly, the pressing cover is closed by receiving the operating force from the lever member, and the electric component placed on the placing portion is pressed and fixed in that state. At this time, each connection terminal of the electrical component is electrically connected to each contact pin of the electrical component socket (see, for example, Patent Document 1).
[0004]
[Patent Document 1]
Japanese Patent No. 3022593 (page 3, FIGS. 1-3)
[0005]
[Problems to be solved by the invention]
However, in the technique described in Patent Document 1, the rotation shaft that pivotally supports the pressing cover is disposed at a position higher than the height of the mounting portion of the socket body, and the lever member presses the upper surface of the pressing cover. Since the operating force is applied to the pressing cover, the overall height of the pressing cover is high when the pressing cover that presses and fixes the electrical component mounted on the mounting portion of the socket body is closed.
[0006]
Further, for example, it is applied to a socket for an electrical component that holds an electrical component having a small number of connection terminals such as a gull wing type, and the number of contact pins provided corresponding to each connection terminal of the electrical component is small. . Therefore, the repulsive force generated by the elastic deformation of each contact pin when pressing the lever member and pressing and fixing the electrical component mounted on the mounting portion of the socket body is small, and a large force is not applied to the lever member. Electric parts could be pressed and fixed. On the other hand, for example, when applied to an electrical component socket for holding an electrical component having a large number of connection terminals on the lower surface thereof such as BGA or LGA, a large force is applied to the lever member to press the pressing cover. I had to. That is, the number of contact pins of the electrical component socket tends to increase as the number of connection terminals of the electrical component increases, and the repulsive force may increase due to the elastic deformation of the multiple contact pins. Therefore, in order to press and fix an electrical component having a large number of connection terminals, the lever member must be pressed with a force larger than the repulsive force, which imposes a burden on an automatic machine that operates the socket for the electrical component. There was a problem of becoming larger.
[0007]
In addition, as another technique related to such an electrical component socket, there is a technology that includes a pressing cover for pressing and fixing the electrical component and a fixing means for fixing the closed pressing cover by applying a force. In the case of such a socket for electric parts, two operations, that is, an operation of closing the pressing cover and an operation of fixing the pressing cover to the closed pressing cover by a fixing means are necessary. Therefore, the lever member is closed by one operation and the electric component cannot be pressed and fixed by the pressing cover.
[0008]
Therefore, the present invention addresses such problems, and when the pressure cover that presses and fixes the electrical component placed on the placement portion of the electrical component socket is closed, the overall height of the electrical cover is closed. It is an object of the present invention to provide a socket for an electrical component that can reduce the voltage.
[0009]
[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 provided with a placement portion for placing an electrical component, and a base end portion on one end side of the socket body with a first rotating shaft. A pressing cover that is pivotally supported so as to be opened and closed and presses and fixes the electrical component placed on the mounting portion in the closed state, and the same end where the pressing cover of the socket body is pivotally supported A socket for an electrical component, comprising: a lever member provided on the side so as to be openable and closable by a second rotating shaft and closed by applying an operating force in a closing direction to the pressing cover; The pressing cover is formed by projecting an operating portion outwardly at a substantially central portion between one end side and the other end side of the side orthogonal to the first rotation axis, and the shaft support portion is formed as described above. The position is lower than the height of the mounting part of the socket body, and the above Bar member has a shape of a substantially U-shaped in plan view, than the spacing of the side spacing of the left and right arm portions extending in parallel from the distal end is perpendicular to the first axis of rotation of the pressing cover widely formed, comprises a distal portion of the left and right arms being pivotally supported by said second rotation axis at a position lower than the height of the mounting portion of the socket body, the pressing cover at the left and right arm portions It is assumed that the operating portion is pressed to apply an operating force in the closing direction to the pressing cover.
[0010]
With such a configuration, the pressing cover having the operation portion projecting outward at the substantially central portion between the one end side and the other end side of the side orthogonal to the first rotation axis has its base end portion. The electrical component placed on the placement portion in the above state is opened and closed by being pivotally supported by the first rotating shaft at a position lower than the height of the placement portion of the socket body on one end side of the socket body. Pressed and fixed, and has a substantially U-shaped shape in plan view, and the left and right arm portions extending in parallel from the tip end portion are closer than the interval between the sides of the pressing cover perpendicular to the first rotation axis. The lever member formed with a wide interval has a second end at a position lower than the height of the mounting portion of the socket body on the same one end side where the above-mentioned pressing cover of the socket body is pivotally supported. It is pivotally supported by a rotating shaft, opens and closes, and the left and right arm portions press the operating portion of the pressing cover to press the pressing cover. Give the working force in the direction to close to over.
[0011]
Further, the shaft support portion of the lever member is located closer to the center than the shaft support portion of the pressing cover between one end side and the other end side of the socket body . As a result, the shaft member of the lever member serves as a fulcrum, and if a force is applied to a force point that is far from the shaft member, a large operating force can be obtained at a point of action close to the shaft member. Even when the force applied to the pressure cover is small, a large operating force is applied to the pressing cover.
[0013]
The pressing cover is urged in the opening direction, and the lever member is engaged with the operation portion of the pressing cover and released. Accordingly, when the closed state of the lever member is released, the pressing cover biased in the opening direction is opened, and the lever member is engaged with the operation portion of the pressing cover and released.
[0014]
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 perspective view showing an embodiment of an electrical component socket according to the present invention, and FIG. 2 is an exploded perspective view of the electrical component socket shown in FIG. This electrical component socket is electrically connected to an external measuring instrument (not shown) by holding the IC package 1 in a detachable manner in the performance inspection process for electrical components such as the IC package 1 shown in FIG. And a socket body 2, a support plate 3, a floating member 4, a pressing cover 5, a lever member 6, and a latch member 7.
[0015]
A socket body 2 shown in FIG. 1 is for mounting electrical components such as an IC package 1 and is molded into a flat plate shape with a resin having high strength and excellent heat resistance. As shown in FIG. 2, a mounting portion 8 for mounting the IC package 1 is provided at a substantially central portion of the socket body 2, and a plurality of contact pins (not shown) are provided on the upper surface thereof. Attached and designed to make electrical contact with a plurality of connection terminals provided on the lower surface of the IC package 1 (see FIG. 1).
[0016]
Further, as shown in FIG. 2, fixing pieces 9 are erected on both the left and right sides of the mounting portion 8 of the socket body 2. The fixed piece 9 is used to position a support plate 3 described later, and is formed integrally with the socket body 2. Furthermore, the 1st bearing part 10 is provided in the left-right both sides of the one end side (right side in FIG. 2) of the socket main body 2. As shown in FIG. The first bearing portion 10 supports a shaft 13 as a first rotating shaft that pivotally supports a press cover 5 described later, and a through hole 10a for passing the shaft 13 is formed. At this time, the through hole 10 a of the first bearing portion 10 is formed at a position lower than the height of the mounting portion 8 of the socket body 2, and the shaft 13 passed through the through hole 10 a is mounted on the socket body 2. It is disposed at a position lower than the height of the placing portion 8.
[0017]
Further, as shown in FIG. 2, the second bearing portion 11 is erected at predetermined positions on both the left and right sides of the mounting portion 8 on the same one end side where the pressing cover 5 of the socket body 2 is pivotally supported. Yes. The second bearing portion 11 supports a shaft 16 as a second rotating shaft that pivotally supports a lever member 6 described later, and a through hole 11a through which the shaft 16 passes is formed. At this time, the second bearing portion 11 is positioned closer to the center than the shaft support portion of the pressing cover 5 between the one end side and the other end side of the socket body 2. Further, the through hole 11 a of the second bearing portion 11 is formed at a position lower than the height of the mounting portion 8 of the socket body 2, similarly to the through hole 10 a of the first bearing portion 10. The shaft 16 passed through 11 a is disposed at a position lower than the height of the mounting portion 8 of the socket body 2.
[0018]
Furthermore, as shown in FIG. 2, other bearing portions 12 are provided on the left and right sides of the mounting portion 8 on the other end side (the left side in FIG. 2) of the socket body 2. . Other bearing portion 12 is for supporting the shaft 17 for supporting the latch member 7 to be described later, a through hole 12a for passing this sheet Yafuto 17 is formed.
[0019]
Further, as shown in FIG. 1, support plates 3 are arranged on both the left and right sides of the mounting portion 8 of the socket body 2. The support plate 3 supports the socket body 2 so as not to be deformed, and is made of metal. As shown in FIG. 2, the left and right fixed pieces 9 and second bearing portions provided on the socket body 2 are provided. 11. Positioned by another bearing 12. As shown in FIG. 1, the left and right support plates 3 are fixed to the socket body 2 by fixing pins 19 and 19, respectively.
[0020]
Further, as shown in FIG. 1, a floating member 4 is disposed above the placement portion 8 of the socket body 2. The floating member 4 receives the outer edge portion of the IC package 1 before the mounting portion 8 and is formed to be movable in the vertical direction while holding the IC package 1 in a substantially horizontal state. As shown in FIG. 2, the specific structure of the floating member 4 has a frame shape that is approximately the same size as the upper surface of the mounting portion 8, and the outer surface of the IC package 1 is regulated at the four corners. Thus, a guide portion 4a for positioning is provided upright. Thereby, when the IC package 1 is dropped from above the floating member 4, the IC package 1 can be guided to a predetermined position and received. Further, by pressing the floating member 4, the IC package 1 can be moved to and placed on the placing portion 8 while being held in a substantially horizontal state.
[0021]
Furthermore, as shown in FIG. 1, the first bearing portion 10 provided on one end side of the socket body 2, the pressing cover 5 is the base end portion provided to be pivotally supported so as to be opened and closed by the shaft 13 Yes. As shown in FIG. 3, the pressing cover 5 presses and fixes the IC package 1 mounted on the mounting portion 8 in a closed state. The pressing cover 5 is formed in a frame shape with metal, and is attached to the shaft 13. on both side surfaces orthogonal tip portions of the left and right arm portions 5a extending (sides) or al parallel (base end portion), the long hole 5b is formed. Then, by aligning the long hole 5b with the through hole 10a of the first bearing portion 10 provided in the socket body 2 and passing the shaft 13 to the left and right, the pressing cover 5 is connected to the first bearing portion 10 with the shaft 13. It is pivotally supported so that it can be opened and closed . In addition, a string spring 15 is attached to the inside of the pressing cover 5 so as to be interposed between the left and right shafts 14. As a result, the pressing cover 5 is biased in the opening direction, and the lever member 6 is engaged and released with an operation portion 20 of the pressing cover 5 described later.
[0022]
As shown in FIG. 2, the pressing cover 5 includes operation units 20 and 20 at a substantially central portion between one end side and the other end side of both side surfaces orthogonal to the shaft 13 . The operation portions 20 and 20 serve as points of action for receiving an operating force from a lever member 6 described later, and a collar portion is formed at the tip of the shaft portion. Thereby, the lever member 6 can be positioned when the operation member 20 provided on both side surfaces orthogonal to the shaft 13 of the pressing cover 5 is pressed and closed by the lever member 6 described later (see FIG. 3). it can.
[0023]
Further, as shown in FIG. 1, the second bearing portion 11 provided on the socket body 2 is provided a lever member 6 is a base end portion is openably journalled by the shaft 16. The lever member 6 is closed by applying an operating force to the pressing cover 5 in the closing direction , and is made of metal, and has a U-shape in plan view as shown in FIG. Round holes 6c are formed at the distal end portions (base end portions) of the left and right arm portions 6b extending in parallel from the left and right arms. Further, the left and right arm portions 6b, 6b are formed wider than the distance between both side surfaces orthogonal to the shaft 13 of the pressing cover 5. Then, the round holes 6c formed in the left and right arm portions 6b of the lever member 6 are matched with the through holes 11a of the second bearing portion 11 provided in the socket body 2, and the shaft 16 is passed through the left and right respectively. , the lever member 6 will be axially supported to be openable and closable by a shaft 16 to the second bearing portion 11.
[0024]
As shown in FIG. 1, the latch member 7 can be rotated by a shaft 17 in the other bearing portion 12 provided on the other end side (the left side in FIG. 2) of the socket body 2. It is pivotally mounted. The latch member 7 holds a closed state with respect to the socket body 2 when the lever member 6 is closed. As shown in FIG. 2, a clamp claw 7 a capable of locking the tip portion 6 a of the lever member 6 is provided. The stopper hole 7b formed on the side portion thereof is matched with the through hole 12a formed in the other bearing portion 12, and is pivotally supported through the shaft 17. In addition, a spring 18 is interposed on the shaft 17 so that the latch member 7 is urged in the locking direction.
[0025]
Next, the operation | movement which hold | maintains IC package 1 using the socket for electrical components comprised in this way is demonstrated with reference to FIGS. First, as shown in FIG. 4, the lever member 6 and the pressing cover 5 are opened, and the IC package 1 is dropped in the direction of arrow C from above the floating member 4 disposed above the mounting portion 8 of the socket body 2. . As a result, the IC package 1 is positioned by regulating the outer surface thereof by the guide portions 4a erected at the four corners of the floating member 4, and is guided to a predetermined position and received (see FIG. 1).
[0026]
Next, as shown in FIG. 4, when the lever member 6 is closed by applying a force for closing the lever member 6 in the direction of arrow D, the arm portion 6 b of the lever member 6 presses the operation portion 20 provided on the pressing cover 5. Then, the pressing cover 5 receives the operating force in the closing direction and closes in the direction of the arrow E. After that, as shown in FIG. 5, the distal end portion 6a of the lever member 6 is locked by the latch member 7 provided on the other end side of the socket body 2 to hold the closed state (see FIG. 3). Here, as described above, the shaft 13, 16 respectively pivotally supporting the pressing cover 5 and a lever member 6 is disposed at a position lower than the height of the mounting part 8 socket body 2, the lever member 6 Since the operating portion 20 provided on the pressing cover 5 is pressed to apply an operating force, the height of the entire socket for electric parts in the state in which the lever member 6 and the pressing cover 5 are closed is compared with the conventional one. Can be lowered.
[0027]
Then, as indicated by an arrow F, a force is applied to the tip 6a (power point) of the lever member 6 to press it. Here, as described above, the shaft 16 serving as a rotary shaft for supporting the lever member 6 is formed of a first rotation shaft of the pressing cover 6 in between the one end and the other end of the socket body 2 It is located closer to the center than the shaft 13. Specifically, in FIG. 5, the pressure cover 5 is disposed in the vicinity of the right side of the operation unit 20 of the closed pressure cover 5. As a result, the shaft 16 serving as the second rotation axis of the lever member 6 serves as a fulcrum, and when a force F is applied to the distal end portion 6a (power point) far from the shaft 16 (fulcrum), the shaft 16 (fulcrum) The operating portion 20 having a short distance from the operating point serves as an operating point, and an operating force is applied to the pressing cover 5, and a large operating force can be obtained at the operating unit 20 (the operating point). Thereby, even when the force applied to the lever member 6 is small, a large operating force can be applied to the operating portion 20 of the pressing cover 5 by the lever principle.
[0028]
Therefore, for example, even in an electrical component socket that holds the IC package 1 in which a large number of connection terminals are provided on the lower surface, such as BGA or LGA, the lever member 6 can be closed and pressed with a small force. The IC package 1 placed on the placing portion 8 can be pressed and fixed. Moreover, since the lever member 6 can be closed and a large operating force can be applied to the pressing cover 5 by a single operation, the burden on the automatic machine that operates the socket for electrical components can be reduced.
[0029]
When the holding of the IC package 1 placed on the placing portion 8 of the socket body 2 and pressed by the pressing cover 5 is released in this way, the latch member 7 provided on the other end side of the socket body 2 is released. Is applied in the direction indicated by arrow G. As a result, the distal end portion 6a of the lever member 6 is unlocked, the pressing cover 5 biased in the opening direction is opened, and the lever member 6 is engaged with the operating portion 20 of the pressing cover 5 and released (see FIG. 1). When the next IC package 1 is held, the next IC package 1 is dropped in the direction of arrow C from above the floating member 4 of the socket body 2, and the above-described operation is repeated.
[0030]
【The invention's effect】
Since the present invention is configured as described above, according to the first aspect of the present invention , the operation portion is provided at a substantially central portion between the one end side and the other end side of the side perpendicular to the first rotation axis. The pressing cover projecting outwardly opens and closes by supporting the base end of the first end of the socket body at a position lower than the height of the mounting portion of the socket body by the first rotating shaft. The electric parts placed on the placement part can be pressed and fixed in the closed state, and have a substantially U-shaped shape in plan view, and left and right arm parts extending in parallel from the tip part The lever member, which is formed wider than the distance between the sides of the pressing cover perpendicular to the first rotation axis, has the same end where the pressing cover of the socket body is pivotally supported at the tip of the left and right arms. On the side, opened and closed by being pivotally supported by the second rotating shaft at a position lower than the height of the mounting portion of the socket body, Close serial left and right arm portions by pressing the operating portion of the pressing cover pressing cover can provide the actuation force in the direction. Therefore, it is possible to close the pressing cover with only one operation of the lever member, and it is possible to reduce the height of the entire electrical component socket in the state where the pressing cover is closed.
[0031]
Moreover, according to the invention which concerns on Claim 2, the axial support part of the said lever member shall be located near the center rather than the axial support part of a press cover between the one end side of a socket main body, and the other end side. Accordingly, the rotation shaft of the lever member serves as the fulcrum, when a force in the distal portion of the distance is long lever member from the rotating shaft (power point), the operation of the pressing cover distance is close from the rotational axis (point of action) Therefore, even when the force applied to the lever member is small, a large operating force can be applied to the pressing cover. Thereby, even when applied to a clamshell type electrical component socket having a heavy operating force, the lever member can be closed and the electrical component can be pressed with a small force. Therefore, the burden of the automatic machine which operates the socket for electrical components can be reduced.
[0033]
And according to the invention which concerns on Claim 3 , the said press cover is urged | biased by the opening direction, The said lever member engages with the operation part of a press cover, and is open | released, When the closed state of the lever member is released, the pressing cover urged in the opening direction is opened, and the lever member can be engaged with the operating portion of the pressing cover and released. Therefore, the pressure cover can be opened simply by releasing the closed state of the lever member, and the burden on the automatic machine for operating the electrical component socket can be reduced.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a socket for electrical parts according to the present invention, showing a state in which a lever member and a pressing cover are opened with respect to a socket body.
FIG. 2 is a perspective view showing a state where the electrical component socket shown in FIG. 1 is disassembled.
3 is a perspective view of the electrical component socket shown in FIG. 1, showing a state in which a lever member and a pressing cover are closed and the IC package is pressed and held with respect to the socket body.
4 is a cross-sectional view of the electrical component socket shown in FIG. 1 taken along the line AA. FIG.
5 is a cross-sectional view of the electrical component socket shown in FIG. 3 taken along the line BB.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... IC package 2 ... Socket body 3 ... Support plate 4 ... Floating member 5 ... Pressing cover 6 ... Lever member
6a ... tip
6b ... arm 7 ... latch member 8 ... mounting part 10 ... first bearing 11 ... second bearing 13 ... shaft ( first rotating shaft)
15 ... String-wound spring 16 ... Shaft ( second rotation axis)
18 ... Spring 20 ... Operation part

Claims

A socket body provided with a mounting portion for mounting electrical components;
A pressing cover that is provided at one end of the socket body with a base end pivotally supported by a first rotating shaft so as to be opened and closed, and presses and fixes an electrical component placed on the mounting portion in a closed state. When,
A lever having a base end pivotally supported by a second rotating shaft so as to be opened and closed by the same one end side of the socket body on which the pressing cover is pivotally supported, and closing the lever by applying an operating force in a closing direction. Members,
A socket for an electrical component having
The pressing cover is formed by projecting an operating portion outwardly at a substantially central portion between one end side and the other end side of the side orthogonal to the first rotation axis, and the shaft support portion is The position is lower than the height of the mounting portion of the socket body,
The lever member has a substantially U-shape in plan view, and the interval between the left and right arm portions extending in parallel from the distal end portion thereof is larger than the interval between the side edges orthogonal to the first rotation axis of the press cover. The left and right arms are pivotally supported by the second rotating shaft at a position lower than the height of the mounting portion of the socket body, and the left and right arms are used for the pressing cover. A socket for an electrical component, characterized in that an operating force in a closing direction is applied to the pressing cover by pressing the operating portion.

The socket for an electrical component according to claim 1, wherein the shaft support portion of the lever member is located closer to the center than the shaft support portion of the pressing cover between one end side and the other end side of the socket body. .

3. The electric component according to claim 1, wherein the pressing cover is biased in an opening direction, and the lever member is engaged with an operation portion of the pressing cover to be opened. socket.