Electrical connectors – Electromagnetic or electrostatic shield – Shielding individually surrounding or interposed between...
Reexamination Certificate
1999-07-22
2001-11-27
Vu, Hien (Department: 2833)
Electrical connectors
Electromagnetic or electrostatic shield
Shielding individually surrounding or interposed between...
C439S108000
Reexamination Certificate
active
06322393
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to electrical connectors and more particularly to modular connectors for use in connecting a daughter printed wiring board to a mother printed wiring board.
2. Brief Description of the Prior Developments
In the manufacture of computers and other various electronic assemblies, daughter boards are commonly connected to mother boards by means of a connector having a receptacle having a plastic housing and a first and second face wherein terminals are connected in one face to the daughter board and at the other to a header connected to the mother board. Various arrangements have been suggested to ground such connectors to the mother or daughter boards but such arrangements have tended to complicate the construction of the connector. A need, therefore, exists for simple and inexpensive means for grounding connectors between mother and daughter boards. There is also a need for such a connector which reduces crosstalk and EMI.
SUMMARY OF THE INVENTION
In the electrical connector of the present invention a receptacle is connected to a daughter board. This receptacle has a housing having a first face and a second face and a plurality of terminals extending from the first face of the daughter board to the second face where there is an interface with a shielded header. The header has two end walls and a medial wall and is comprised of a conductive material, preferable a suitable metallic alloy. A plurality of apertures extend through the medial wall and retain signal pins which contact the terminals in the receptacle. There is a first and second face on the medial wall. The first face interfaces with the second face of the receptacle. The second face abuts the printed wiring board. On the second face there are a plurality of recesses into which conductive pins are press fitted to ground the connector. On the inner side of the end walls of the header there are also axial grooves which retain removable springs which contact shields on the receptacle to further aid in grounding the connector.
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Doutrich Ray C.
Fusselman David F.
Stoner Stuart C.
Townsend Peter K.
FCI Americas Technology Inc.
Vu Hien
Woodcock Washburn Kurtz Mackiewicz & Norris LLP
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