公开(公告)号：US5206796A

公开(公告)日：1993-04-27

申请号：US667432

申请日：1991-03-11

申请人： Bradley H. Thompson ,  Brian S. Aikins ,  Roger M. Trana

发明人： Bradley H. Thompson ,  Brian S. Aikins ,  Roger M. Trana

IPC分类号： H05K7/14 ,  H05K9/00

CPC分类号： H05K9/002

摘要： An electronic instrument is provided with a shielding system consisting of two metallic shields press fitted into plastic instrument case parts without the need for any additional parts to provide electrical and mechanical attachment. In one embodiment, a bottom shield is press fitted onto protuberances inside of a lower case part and electrically connected to a common jack base on a circuit board within the instrument by a vee spring on the bottom shield. A top shield is press fitted into a capturing region of a switch support case part and includes an extension arm and extension ring that is mechanically held by case screws and guides already required by the plastic case. In that position, the extension ring is held in electrical contact with a common pad on the circuit board, the common pad being in electrical contact with a common trace, a common area, and the common jack base.

公开(公告)号：US5186634A

公开(公告)日：1993-02-16

申请号：US811709

申请日：1991-12-20

申请人： Bradley H. Thompson

发明人： Bradley H. Thompson

IPC分类号： H05K3/32 ,  H05K3/34

CPC分类号： H01R12/58 ,  H05K3/325 ,  H05K2201/10295 ,  H05K2201/10477 ,  H05K2201/10878 ,  H05K3/3447

摘要： An electrical contact having one or more spring-biased tabs for mounting to a circuit board precludes the need for additional mechanical fasteners and obviates any additional manufacturing steps, except for soldering. The tabs are formed and shaped to provide springs which, when inserted into holes in a circuit board, compress and grip the interior wall of the hole.

摘要翻译： 具有一个或多个用于安装到电路板的弹簧偏压突片的电触头排除了对额外的机械紧固件的需要，并且除了焊接之外消除了任何额外的制造步骤。 突片被形成和成形以提供弹簧，当插入到电路板中的孔中时，弹簧压缩并夹住孔的内壁。