Shielded electrical connector

Details Shielded electrical connector Shielded electrical connector

1998-12-28

2001-09-18

Sircus, Brian (Department: 2839)

Electrical connectors

With supporting means for coupling part

Supporting plural, independent coupling parts

C439S607070

Reexamination Certificate

active

06290535

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an electrical connector, and particularly to a shielded electrical connector having a metal shell exhibiting excellent shielding and grounding effects.
2. The Related Art
For presently used electrical connectors, accumulated charges on the connector resulting from interference are commonly discharged through grounding legs thereof but electromagnetic waves generated from within the connector are allowed to radiate randomly. With an increasingly larger quantity of signals being transmitted at an increasingly higher transmission rate, the grounding route of such connectors cannot meet the demand.
U.S. Pat. No. 5,735,699, which is assigned to the same assignee as the present invention, discloses an electrical connector having grounding legs downwardly extending from a housing thereof for engaging with ground traces on a PCB and grounding clips protruding from a front face thereof for contacting a computer enclosure whereby accumulated charges thereon can be effectively discharged. However, electromagnetic waves generated from within the connector are not properly shielded.
As is known, a metal shell can shield external charges and prevent internal electromagnetic waves from radiating externally whereby grounding routes can expel charges more quickly thereby providing a more reliable transmission of electrical signals. Hence, the connector requires a shell to overcome the problems of electromagnetic interference.
SUMMARY OF THE INVENTION
Accordingly, an objective of the present invention is to provide a shielded connector having excellent shielding and grounding features.
An electrical connector in accordance with one aspect of the present invention comprises an insulative housing having a D-sub receptacle and an audio jack mounted thereto, and a metal shell assembled to the housing. Grounding legs of board locks downwardly extend from the housing for engaging with ground traces on a PCB and grounding clips protrude from a front face of the audio jack for contacting a computer enclosure whereby accumulated charges on the connector can be effectively discharged. The shell shields the connector from being adversely affected by external charges and prevents internal electromagnetic waves of the connector from radiating externally by creating other grounding routes for electrical discharge. The shell comprises a first section and a second section assembled to the connector after the connector is mounted on a PCB.
According to another aspect of the present invention, the first and second sections of the shell are integrally formed together whereby the shell can be assembled to the connector before the connector is mounted to a PCB.
These and additional objects, features, and advantages of the present invention will become apparent after reading the following detailed description of the preferred embodiments of the present invention taken in conjunction with the appended drawing figures.


REFERENCES:
patent: 5735699 (1998-04-01), Tan et al.
patent: 5797770 (1998-08-01), Davis et al.
patent: 5865645 (1999-02-01), Embo et al.
patent: 5908331 (1999-06-01), Hsu et al.

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