Cable end connector

Details Cable end connector Cable end connector

1999-06-09

2001-01-30

Nguyen, Khiem (Department: 2839)

Electrical connectors

Electromagnetic or electrostatic shield

Shielding individually surrounding or interposed between...

C439S076100

Reexamination Certificate

active

06179662

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention generally relates to a cable end connector, and in particular to a cable end connector having an EMI shield securely fixed to a casing thereof.
2. The Prior Art
Electrical/electronic devices are usually connected together by means of electrical cables. The electrical cable may have an end connector for facilitating connection with the electrical/electronic devices. To suppress electromagnetic interference (EMI), the cable and the end connector are commonly enclosed by a conductive member which is grounded. However, such a conventional configuration complicates the manufacturing process.
To overcome the problem, Taiwan Patent Application Nos. 82109498, 83215903, 84200785 and 84206625 teach arranging a circuit board in the cable end connector for electrically connecting the cable to contact elements of the connector. The circuit board is enclosed by a casing formed by two casing members. The casing members have projections and recesses engaging with each other for fixing the two members together. However, the casing members have no securing means thus the casing members may become detached from each other leading to deterioration of EMI protection.
It is thus desirable to provide a cable end connector which overcomes the above problems of the prior art cable end connectors.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide a cable end connector having casing members securely fixed together and forming a secure electrical engagement with a shielding member for enhanced EMI protection and grounding purposes.
To achieve the above objects, a cable end connector in accordance with the present invention comprises a conductive casing having two spaced wall plates connected by a peripheral edge face. An insulative body has retaining legs extending into the casing via an opening defined in the edge face to support the body on the edge face. A circuit board is arranged in the casing in electrical connection with contact elements retained in the body. A shielding member is attached to the body by inserting four retaining legs thereof through holes defined in the body. Each wall plate of the casing has two cantilevered members each defining a slot for receiving and engaging the corresponding retaining leg. The leg is bent an angle for being secured in the slot. The slot has a cantilevered section having an inclined flange for surface-contacting and electrically engaging the bent portion of the retaining leg. The cantilevered structures of the cantilevered member and cantilevered section provide resiliency for forming secure engagement between the cantilevered member and the retaining leg. A plurality of wires extend into the casing through a second opening defined therein to be electrically connected to the circuit board.


REFERENCES:
patent: 5797771 (1998-08-01), Garside
patent: 5941725 (1999-08-01), Brennan et al.
patent: 5980320 (1999-11-01), Slack et al.
patent: 6050852 (2000-04-01), Wu

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