Shielded electrical connector for IC card

Details Shielded electrical connector for IC card Shielded electrical connector for IC card

1998-12-07

2001-06-19

Nguyen, Kheim (Department: 2839)

Electrical connectors

Electromagnetic or electrostatic shield

Shielding individually surrounding or interposed between...

Reexamination Certificate

active

06247967

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to an electrical connector, and more particularly to a shielded electrical connector for connection to an IC (Integrated Circuit) card having supporting arm extending from transverse ends of a dielectric housing thereof for providing a substantial support to an EMI shield mounted thereon.
DESCRIPTION OF PRIOR ART
Almost each connector is provided with an EMI shield to improve noiseless signal communication thereof. In the very beginning, the EMI shield is integrally molded with a dielectric housing. For example, U.S. Pat. Nos. 5,333,100, 5,505,628, 5,572,408, and 5,586,893 disclose such configuration. However, this has a shortcoming since the EMI shield is fixedly molded onto the housing. Once an assembled pin is damaged or mis-aligned, it is hard to find an access to modify the damaged pin.
U.S. Pat. Nos. 5,490,043 and 5,590,028 disclose a grounding clip attached to a dielectric housing. The grounding clip is then connected with a metal housing to establish a grounding path. U.S. Pat. Nos. 5,330,360 and 5,683,181 disclose a grounding tab extending from a side of a metal housing for establishing a grounding path with a printed circuit board. However, the formation of the grounding clip and the grounding tab needs a plurality of processes of stamping, forming and bending. This is really not suitable for mass production.
U.S. Pat. No. 5,478,260 discloses a ground plate 80 that is attached to a housing 76 of a connector 74 by a side portion 88. However, a plate like portion 82 is easy to be bent because of external force. On the other hand, the attachment of the plate like portion 82 to the housing 76 is not secured also.
SUMMARY OF THE INVENTION
An objective of this invention is to provide a dielectric housing having a pair of supporting arms outwardly extending from transverse ends thereof thereby a front edge of an EMI shield can be firmly supported.
Another objective of this invention is to provide a dielectric housing having a pair of supporting arms in which a retaining recess is provided for receiving a retainer of the EMI shield.
In order to achieve the objectives set forth, an electrical connector in accordance with the present invention generally comprises a dielectric housing defining a plurality of passageways therethrough and each receiving a terminal therein. Each terminal includes a soldering leg extending outward from each passageway. A pair of supporting arms extend from transverse ends of the housing thereof and each arm defines a retaining recess thereon. An EMI shield for shielding the terminals includes a base plate and a flap portion extending from an edge of the base plate. A plurality of spring fingers extend from a side of the flap portion. A pair of retainers extend from transversal ends of the flap portion for detachably engaging with the retaining recess of the supporting arm.
In a preferred embodiment, at least a retaining barb is formed on an edge of the base portion opposite the flap portion. The retaining barb may insert into a notch formed on a dam portion of the housing.
These and additional objectives, features, and advantages of the present invention will become apparent after reading the following detailed description of the preferred embodiments of the invention taken in conjunction with the appended drawing figures.


REFERENCES:
patent: 5174771 (1992-12-01), Burgit et al.
patent: 5725394 (1998-03-01), Banakis et al.
patent: 5934941 (1999-08-01), Hirai et al.
patent: 5947769 (1999-09-01), Leonard et al.

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