Electrical connectors – Preformed panel circuit arrangement – e.g. – pcb – icm – dip,... – With provision to conduct electricity from panel circuit to...
Reexamination Certificate
2003-08-05
2004-06-15
Bradley, P. Austin (Department: 2833)
Electrical connectors
Preformed panel circuit arrangement, e.g., pcb, icm, dip,...
With provision to conduct electricity from panel circuit to...
C439S591000, C439S259000
Reexamination Certificate
active
06749441
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an electrical connector used for electrically connecting a land grid array (LGA) integrated circuit (IC) module to a printed circuit board (PCB).
2. Description of the Related Art
An electrical connector used for electrically connecting an LGA electrical component to a PCB is widely applied in the field of electronics, and a correlative article is found in
Nonlinear Analysis Helps Design LGA Connectors
(Connector Specifier, February 2001). Such connectors disclosed in U.S. Pat. Nos. 6,027,345, 6,146,151, 6146,152, 6,164,978 and 6,293,806 comprise insulative housings and contacts received in the housings.
A typical such electrical connector
6
shown in
FIG. 6
used for electrically connecting an LGA IC module to a PCB comprises a insulative housing
60
defining a plurality of passageways
600
for receiving a plurality of contacts
61
. In addition, the housing
60
defines a mating surface
601
for supporting the IC module. In order to obtain excellent elasticity for ensuring reliable electrical connection between the IC module
7
and the contact
61
, the contact must define a long elastic arm and the contacting portion
610
of the contact
61
must be beyond the mating surface
601
. While the electrical connector is put into use, the IC module
7
presses on the contacting portion
610
to make the contact
61
transform elastically. However, because the contacting portion
610
is beyond the mating surface
600
, the contacting portion
610
will be bended or damaged by factors such as rough handling or accidental impact, which will weaken, even destroy, the electrical connection between the IC module
7
and the connector
6
.
Hence, a new electrical connector is desired to overcome the above-described disadvantages.
SUMMARY OF THE INVENTION
An object of the present invention is to provide an electrical connector which has a protective cover to protect a plurality of contacts received in the connector.
In order to achieve the aforementioned object, an electrical connector in accordance with a preferred embodiment of the present invention comprises an insulative housing defining a first surface and a second surface, a plurality of contacts received in the housing, a cover slidably mounted on the housing and a spring positioned between the housing and the cover. The housing defines two opposite sidewalls vertically connecting the first surface and the second surface, each sidewall defining two restricting slots respectively. The cover defining a plurality of openings comprises a plurality of hooks cooperating with the corresponding restricting slot of the housing. When the cover is at a first position in which the hooks cooperate with the first protruding portions, the contact is positioned between the upper surface of the cover and the first surface of the housing, when the cover is at a second position which the hooks cooperate with second protruding portions, the contact is beyond the openings of the cover.
Other objects, advantages and novel features of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which:
REFERENCES:
patent: 4750890 (1988-06-01), Dube et al.
patent: 4865554 (1989-09-01), Matsuoka et al.
patent: 5013256 (1991-05-01), Matsuoka et al.
patent: 5161983 (1992-11-01), Ohno et al.
patent: 5387121 (1995-02-01), Kurz
patent: 6016254 (2000-01-01), Pfaff
patent: 6027345 (2000-02-01), McHugh et al.
patent: 6146151 (2000-11-01), Li
patent: 6146152 (2000-11-01), McHugh et al.
patent: 6164978 (2000-12-01), McHugh et al.
patent: 6350138 (2001-06-01), Atobe
patent: 6293806 (2001-09-01), Yu
Bradley P. Austin
Chung Wei Te
Hammond Briggitte R.
Hon Hai - Precision Ind. Co., Ltd.
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