Cable end connector assembly with improved grounding means

Details Cable end connector assembly with improved grounding means Cable end connector assembly with improved grounding means

2003-01-16

2004-10-05

Ta, Tho D. (Department: 2833)

Electrical connectors

With vitreous-type envelope

Having bayonet-coupling contact

C439S497000

Reexamination Certificate

active

06799997

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a cable end connector assembly, and particularly to a cable end connector assembly having enhanced grounding effect.
2. Description of Related Art
With the developing trend of miniature of a personal computer, the integration command of a mother board is higher and higher and a plurality of electrical components is needed to be integrated thereon. Because of the limited space of a chassis of the computer, the size of the mother board is limited correspondingly, therefore, the number of the electrical components is restricted. However, with the development of consuming products, besides outer peripheral devices (such as a keyboard, a mouse et al.), the computer also needs to connect with other consuming products, such as a printer, a digital camera, a scanner, and a personal digital assistant. (PDA). This needs a lot of input/output ports settled on a panel of the chassis to satisfy the current requirement.
Under such condition, a cable end connector assembly mounted in the chassis of the computer is developed. The cable end connector assembly interconnects the input/output ports settled on the panel and corresponding electrical connectors mounted on the mother board; thus, economizing the mother board to a great extent. Such prior art cable end connector assembly is disclosed in Taiwan patent No. 330735 issued on Apr. 21, 1998 and Taiwan patent No. 349660 issued on Jan. 1, 1999. Now referring to
FIG. 1
, such a cable end connector assembly
90
comprises an insulative cover
91
and a plurality of electrical connectors
92
respectively received in receiving cavities defined in the cover
91
. The insulative cover
91
is fastened to a grounding plate
94
by means of a pair of screws
93
and a metal shield
95
of each electrical connector
92
abuts against the grounding plate
94
. The grounding plate
94
is assembled to a chassis of a computer; thus, an electrical grounding trace is established from the cable end connector assembly
90
to the computer via the grounding plate
94
and the noise generated by EMI or cross-talk is decreased.
However, the grounding effect is not reliable. Since the electrical connectors
92
abut against the grounding plate
94
by the engagement between the insulative cover
91
and the grounding plate
94
, and since the material of the insulative cover
91
is relatively flexible, the electrical connectors
92
have great possibility of separating from the grounding plate
94
after frequently pull/insert from/into a complementary connector. Because of the unstable engagement between the electrical connectors
92
and the grounding plate
94
, noises generated in the cable end connector assembly
90
cannot be transmitted away and a signal transmission of the cable end connector assembly
90
is influenced inevitably.
A way of fastening the electrical connectors
92
directly to the grounding plate
94
through increasing a front size of each connector can solve the above problem. However, this increases manufacturing cost, and the assembly and disassembly between the cable end connector assembly
90
and the grounding plate
94
is inconvenient. Hence, a cable end connector assembly with an improved grounding means for achieving enhanced grounding effect is required to overcome the disadvantages of the related art.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a cable end connector assembly, which has a multi-way grounding trace for achieving an improved grounding performance and enhanced EMI protection.
In order to achieve the objects set forth, a cable end connector assembly comprises a plurality of electrical connectors, a cable, an insulative cover, and a conductor. Each electrical connector comprises an insulative housing, a plurality of contacts mounted in the insulative housing, and a metal shield assembled to the insulative housing. The cable comprises a plurality of wires electrically connecting with the contacts and a grounding medium electrically connecting with corresponding metal shield. The insulative cover encloses the electrical connectors and one end of the cable. The conductor electrically and mechanically connects with the metal shields of the electrical connectors.
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: 5125854 (1992-06-01), Bassler et al.
patent: 5244415 (1993-09-01), Marsilio et al.
patent: 5266053 (1993-11-01), Jamet et al.
patent: 5387130 (1995-02-01), Fedder et al.
patent: 5709569 (1998-01-01), Buck et al.
patent: 5885103 (1999-03-01), Ernolf et al.
patent: 6146196 (2000-11-01), Burger et al.
patent: 6206731 (2001-03-01), Kuo
patent: 6210216 (2001-04-01), Tso-Chin et al.
patent: 6213812 (2001-04-01), Kan
patent: 6296518 (2001-10-01), Avery et al.
patent: 6305986 (2001-10-01), Hwang
patent: 6346009 (2002-02-01), Lin
patent: 330735 (1998-04-01), None
patent: 349660 (1999-01-01), None

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