Electrical connector

Details Electrical connector Electrical connector

2000-01-27

2002-10-29

Paumen, Gary (Department: 2833)

Electrical connectors

Electromagnetic or electrostatic shield

Shielding individually surrounding or interposed between...

C439S668000

Reexamination Certificate

active

06471546

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to an electrical connector, and particularly to an electrical connector having a securing tab on a shield.
A conductive shell is often mounted on an outside of an electrical connector for shielding the electrical connector from EMI. U.S. Pat. Nos. 5,178,562; 4,842,554; and 4,908,335 disclose a type of shell used with electrical connectors. Referring to
FIGS. 5
,
6
A and
6
B, an electrical connector comprises an insulative housing
9
having several grooves
91
(only one is shown), and a shell
8
having a corresponding number of clipping patches
81
(only one is shown) to interengage with the grooves
91
. Each groove
91
further defines a side plane
911
and a bottom plane
912
. In assembly, the insulative housing
9
can be inserted into the shell
8
, then the clipping patches
81
can be inserted in the corresponding grooves
91
until the clipping patches
81
engage with the bottom planes
912
of the grooves
91
. Because the engagement of the clipping patches
81
and the grooves
91
generally consists only of the engagement of the clipping patches
81
and the bottom planes
912
, and the side planes
911
generally do not engage with the clipping patches
81
, the engagement of the clipping patches
81
and the grooves
91
is not very stable. This can lead to disengagement of the insulative housing
9
from the shell
8
, or even removal of the shell
8
from the housing
9
. The shield against EMI is therefore not reliable. Hence, an improved electrical connector is required to overcome the disadvantages of the prior art.
BRIEF SUMMARY OF THE INVENTION
An object of the present invention is to provide a shield which can be reliably assembled with a housing to improve the shielding against EMI.
Accordingly, an electrical connector of the present invention for receiving a mating connector plug comprises an insulative housing, a shield covering an outside of the insulative housing, and a terminal group received in the insulative housing for electrically connecting with the plug. The insulative housing has a front surface and a pair of recesses in a pair of sidewalls. Each recess defines an inner wall and a bottom face. The shield comprises a front surface and a pair of securing tabs formed in a pair of side plates. Each securing tab has a pair of tines on the end. A distance from a front of each tine to a rearward side of the shield front surface is not more than the distance from each inner wall to the front surface of the insulative housing. In assembly, the tines of the securing tabs are bent into the corresponding recesses to securely engage with the inner walls and the bottom faces of the insulative housing.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description of the present embodiment when taken in conjunction with the accompanying drawings.


REFERENCES:
patent: 4842554 (1989-06-01), Cosmos et al.
patent: 4908335 (1990-03-01), Cosmos et al.
patent: 5178562 (1993-01-01), Ermini
patent: 5928035 (1999-07-01), Jankowsky et al.
patent: 5984727 (1999-11-01), Wu et al.
patent: 5993257 (1999-11-01), Maruyama
patent: 5993258 (1999-11-01), Matsunuma et al.
patent: 6007379 (1999-12-01), Michaelis et al.

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