Electrical connector with standoffs

Details Electrical connector with standoffs Electrical connector with standoffs

2003-05-27

2004-08-24

Vu, Hien (Department: 2833)

Electrical connectors

With coupling movement-actuating means or retaining means in...

Including compound movement of coupling part

Reexamination Certificate

active

06780040

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an electrical connector for electrically connecting a central processing unit (CPU) with a printed circuit board (PCB), and particularly to an electrical connector with a cover having a plurality of standoffs.
2. Description of Prior Art
CPU socket connectors are widely used in personal computer (PC) systems to electrically connect CPUs with PCBs. A CPU socket connector usually comprises a base, and a cover slidably engaged on the base. The base defines a plurality of passageways receiving a plurality of conductive contacts. The cover defines a plurality of passages for insertion of contact pins of the CPU thereinto. Thus, pins of the CPU are electrically mated with the corresponding contacts secured in the base. This kind of electrical connector is disclosed in U.S. Pat. Nos. 6,419,514, 6,340,309 and 6,338,640.
Referring to
FIG. 3
, U.S. Pat. No. 6,419,514 discloses a conventional CPU socket connector
3
. The CPU socket connector
3
comprises a base
30
soldered on a PCB (not shown), a cover
32
mounted on the base
30
, an actuator
34
actuating the cover
32
to slide along the base
30
, and a plurality of contacts
36
. A plurality of passageways
302
is defined in the base
30
arranged in a rectangular array, the passageways
302
receiving the contacts
36
therein. The cover
32
is generally a thin plate, and comprises a supporting portion
320
. A plurality of passages
3201
is defined in the supporting portion
320
of the cover
32
, corresponding to the passageways
302
of the base
30
, for insertion of pins of the CPU
4
thereinto.
Referring to
FIG. 4
, in assembly, the CPU
4
is attached on the supporting portion
320
of the cover
32
. The pins of the CPU
4
are inserted through the passages
320
of the cover
32
into the passageways
302
of the base
30
, and then electrically mate with the contacts
36
of the base
30
. The base
30
of the connector
3
is soldered to the PCB. Thus, the contacts
36
of the base
30
electrically connect the CPU
4
with the PCB.
In use, the CPU
4
typically generates much heat. Because the cover
32
is generally a thin plane, the cover
32
is liable to easily warp when subjected to heat generated from the CPU
4
. When this happens, the CPU
4
may be only slantingly attached on the cover
32
. The pins of the CPU
4
may become disconnected from the contacts
36
. This results in interruption or failure of electrical connection between the CPU
4
and the PCB.
A new CPU socket connector that overcomes the above-mentioned problems is desired.
SUMMARY OF THE INVENTION
An object of the present invention is to provide an electrical connector having standoffs that can safely support a CPU thereon.
In order to achieve the above object, an electrical connector in accordance with a preferred embodiment of the present invention comprises an insulative base, a cover mounted on the base, a plurality of conductive terminals, and an actuator actuating the cover to slide along the base. The base defines a plurality of passageways receiving the corresponding terminals therein. The cover comprises a main body and a protrusion. The main body defines a plurality of passages corresponding to the passageways of the base. Four L-shaped standoffs extend perpendicularly upwardly from four corners of the main body respectively. Each standoff has a same height. A cross sectional area of each of the standoffs is far less than a cross sectional area of the main body. When a CPU is mounted on the electrical connector, it is supported by the standoffs 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: 5722848 (1998-03-01), Lai et al.
patent: 6210197 (2001-04-01), Yu
patent: 6338640 (2002-01-01), Lin
patent: 6340309 (2002-01-01), Lin et al.
patent: 6419514 (2002-07-01), Yu
patent: 6485321 (2002-11-01), Trout et al.

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