Electrical card connector

Details Electrical card connector Electrical card connector

1999-04-29

2001-02-27

Sircus, Brian (Department: 2839)

Electrical connectors

Electromagnetic or electrostatic shield

Shielding individually surrounding or interposed between...

Reexamination Certificate

active

06193553

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to an electrical card connector, and particularly to an electrical card connector with a shield which can be rapidly assembled to an insulative body thereby simplifying and expediting assembly.
DESCRIPTION OF PRIOR ART
Generally speaking, most electrical cards and electrical card connectors conform to the standards of PCMCIA (Personal Computer Memory Card International Association). However, as both the capacity and speed of communication transmission increase, the disturbance of miscellaneous electrical messages becomes increasingly serious thereby adversely affecting the quality of signal communication. To overcome the above-mentioned deficiency, a shield for shielding miscellaneous electrical messages is commonly assembled to the electrical card connector for ensuring the quality of signal communication. Taiwan Patent Application No. 86210606 and U.S. Pat. No. 5,662,482 describe such connectors.
Referring to
FIGS. 5 and 6
, an existing shield
80
is assembled to an electrical connector by a clip
81
. In assembly, the shield
80
is placed on an insulative body
82
and a guide frame
83
, and the clip
81
is aligned with a hole
831
and a nut
84
from one side of the shield
80
. A bolt
85
is inserted into the hole
831
from an opposite side whereby one hand is required to stabilize the nut
84
while the other hand rotates the bolt
85
for fastening the components together. While engaging the nut
84
with the bolt
85
, the clip
81
is planar and can not prevent the nut
84
from moving along the axial direction of the bolt, thus the nut
84
may be displaced by the bolt
85
during assembly. Therefore, one hand must hold the nut
84
while the other hand rotates the bolt
85
, which is inconvenient and time inefficient. Furthermore, one surface of the nut
84
must face upward or the nut
84
may become displaced from the hole
831
thereby requiring re-assembly, which prolongs assembly time and reduces manufacturing efficiency.
To avoid the aforesaid deficiencies, the hole
831
can be designed to be slightly smaller than the nut
84
thereby requiring a high degree of manufacturing precision. In assembly, both the nut
84
and the clip
81
are retained in the hole
831
with a suitable tool. The aforementioned feature increases manufacturing costs because of high precision requirements resulted from creating the hole
831
and the specific tools.
SUMMARY OF THE INVENTION
A main object of the present invention is to provide an electrical card connector having a shield which can be rapidly assembled to an insulative body thereby simplifying and expediting assembly of the connector.
In order to achieve the object set forth, an electrical card connector assembly in accordance with the present invention includes an insulative body, a plurality of terminals received in the body, a shield attached to the body, a card ejection mechanism disposed on one longitudinal side of the body, and a bolt and a nut. A fastening portion extends from a longitudinal side of the shield. The fastening portion is shaped after several bends for receiving a retentive nut therein. During the bending process of the fastening portion, a first side plate, a base plate and a second side plate are formed outward in turn, wherein the first side plate faces the second side plate. Protrusion structures are formed on both of the first and the second side plates projecting toward the nut at a height equal to or slightly larger than that of the nut thereby preventing the nut from moving along the axial direction of the bolt. Thus, the shield can be easily connected to the insulative body by a bolt and a nut without requiring extra retention thereby simplifying and expediting assembly of the 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: 5249983 (1993-10-01), Hirai
patent: 5288244 (1994-02-01), Lien
patent: 5525064 (1996-06-01), Mowry
patent: 5613860 (1997-03-01), Banakis et al.
patent: 5738541 (1998-04-01), Tseng
patent: 5822193 (1998-10-01), Summers et al.
patent: 6027372 (2000-02-01), Lai et al.
patent: 6030251 (2000-02-01), Stark et al.
patent: 6050852 (2000-04-01), Wu

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