Electrical connector with improved ESD and terminal arrangement

Details Electrical connector with improved ESD and terminal arrangement Electrical connector with improved ESD and terminal arrangement

2001-05-11

2002-05-21

Vu, Hien (Department: 2833)

Electrical connectors

With circuit conductors and safety grounding provision

Grounding of coupling part

C439S607560

Reexamination Certificate

active

06390833

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an electrical connector and particularly to an electrical connector having a pair of grounding pads for Electro-Static Discharge (ESD) and having a pair of terminals arranged in a first wall which is perpendicular to second walls on which a plurality of terminals are disposed.
2. Description of Related Art
A conventional connector usually provides a metallic bus projecting upwardly from a mating opening of the connector into which a complementary connector is received. The bus is applied to discharge electrons deposited on a complementary connector. Obviously, the bus should be spaced from the terminals and thus requires the mating opening to be wide enough to accommodate both the terminals and the bus. For high density connectors which have several rows of terminals, such a large mating opening deteriorates the scarce port area of the connector. On the other hand, it is usual to arrange signal terminals on parallel walls. Thus when the number of the terminals is increased, there is a requirement for longer walls on which the terminals are located. Such requirement sacrifices length of the connector. Therefore, it is desirable to add terminals without extending the length of the connector.
SUMMARY OF THE INVENTION
Accordingly, the object of the present invention is to provide an electrical connector having grounding pads for ESD, the grounding pads requiring no additional space in the connector.
Another object of the present invention is to provide an electrical connector having terminals distributed in walls of a housing thereof perpendicular relative to each other so as to remain the connector compact.
In order to achieve the objects set forth, an electrical connector assembly comprises a male connector and a female connector mateable with the male connector.
The female connector includes a dielectric female housing, a plurality of metallic female terminals, a pair of grounded grounding pad for ESD, and a conductive female shield attached to an outer side of the housing. The male connector includes a dielectric male housing, a plurality of male terminals, and a conductive shield.
The female housing has a longitudinal mating wall and defines a female receiving opening in the mating wall. The mating wall provides two blocks at opposite ends thereof and an elongated female tongue formed amidst the female receiving opening and being parallel to opposite side walls of the mating wall. The female terminals are lined up on the side walls of the mating wall and opposite sides of the male tongue. Each block defines a cavity extending upwardly through the mating wall for receiving the grounding pads. Each grounding pad has a first feet abutting against the shield from the cavity and a second feet exposed over the cavity. The second feet provides a contacting portion for electrically as well as mechanically engages with the shield before the female and male terminals engage with each other.
The male housing defines a male receiving opening and forms a pair of male tongues parallelly projecting in the male receiving opening and a bridge wall interconnecting adjacent ends of the male tongues. The female tongue of the female connector is received between the male tongues and the bridge wall. The male tongues forming engaging surfaces which are engageable with the side walls of the mating wall and opposite sides of the female tongue of the female connector. The bridge wall forms a contacting surface angularly connecting with the engaging surface and mates with the inner side of one of the block. The male terminals are arranged along the engaging surface of the male board and are electrically engaged with corresponding female terminals of the female connector.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.


REFERENCES:
patent: 5035631 (1991-07-01), Piorunneck et al.
patent: 5913690 (1999-06-01), Dechelette et al.
patent: 5993257 (1999-11-01), Maruyama
patent: 6247970 (2001-06-01), Ueno et al.

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