Electrical connectors – Preformed panel circuit arrangement – e.g. – pcb – icm – dip,... – Distinct contact secured to panel circuit
Reexamination Certificate
1999-10-27
2001-02-06
Paumen, Gary F. (Department: 2833)
Electrical connectors
Preformed panel circuit arrangement, e.g., pcb, icm, dip,...
Distinct contact secured to panel circuit
C439S092000
Reexamination Certificate
active
06183271
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Present Invention
The present invention relates to a card connector assembly, and particularly to a card connector assembly which possesses a plurality of conductive terminals protectively secured to assure easy and reliable contact.
2. Brief Description of the Prior Art
Card connector assemblies are disclosed in Taiwan Patent Application Nos. 82210513, 84206175 and 84206176. The conventional card connector assembly shown in
FIG. 5
comprises a dielectric housing
11
and a plurality of conductive terminals
15
arranged in upper and lower rows extending through the dielectric housing
11
. A mating end (not labeled) of each terminal
15
extends into a receiving chamber
12
of the housing
11
and mates with an inserted IC card (not shown). A solder tail (not labeled) of each terminal
15
is curved to engage with a printed circuit board (PCB)
20
. Since the solder tail of each terminal
15
is not protected by the housing
11
when it is mated to the PCB
20
, the terminals
15
may easily be deflected and electrical contact may therefore be unreliable.
In another prior art card connector assembly disclosed in
FIG. 6
, an IC card connector
16
is connected to a transition connector
30
on a PCB
20
by a flexible circuit board
21
. However, use of the flexible circuit board
21
sharply increases production cost.
Hence, an improved electrical connector is required to overcome the disadvantages of the prior art.
BRIEF SUMMARY OF THE INVENTION
A first object of the present invention is to provide a card connector assembly with a plurality of conductive terminals easily and reliably contacted;
A second object of the present invention is to provide an IC card connector with a plurality of terminals reliably secured in position and protected from deflection during assembly; and
A further object of the present invention is to provide a transition connector for reliably receiving a plurality of terminals in an IC card connector.
In order to achieve the above objects, an electrical connector assembly of the present invention comprises an IC card connector and a transition connector. The IC card connector includes a dielectric housing, a plurality of conductive terminals received in the housing, a conductive grounding plate covering the housing, a card ejection mechanism and a pair of guiding rails attached to the card ejection mechanism. The housing has a mating board projecting from a front mating face thereof, a contacting face opposite to the mating face and a pair of arms rearwardly extending at opposite ends of the housing. The mating board defines a plurality of parallel slots and a plurality of parallel grounding recesses. The slots are spaced at regular intervals and are symmetrically located on both a top and a bottom surface of the mating board. The slots extend through the housing from the mating face to the contacting face for securing the terminals. The grounding recesses are spaced at regular intervals between the slots and are located in the top surface of the mating board for receiving a plurality of grounding fingers extending from the front edge of the grounding plate. Therefore the conductive terminals and the grounding fingers are secured in the slots and the grounding recesses thereby preventing the terminals from being broken and assuring easy and reliable contact between the terminals of the card connector and the contacts of the transition connector. The slots and the grounding recesses are integrally constructed with the housing.
The transition connector possesses a plurality of upper mating contacts and lower mating contacts and a mating cavity corresponding to the mating board. One end of the upper and lower mating contacts are curved to engage with the conductive terminals of the card connector. A solder tail of each upper mating contact depends downwardly to be soldered to a PCB while a solder tail of each lower mating contacts extend along exterior bottom surface of the receiving housing to be soldered to the PCB.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description of the present embodiment when taken in conjunction with the accompanying drawings.
REFERENCES:
patent: 5709568 (1998-01-01), Pan et al.
patent: 5775923 (1998-07-01), Tomioka
patent: 5795190 (1998-08-01), Ono
patent: 5906510 (1999-05-01), Lwee
patent: 5954522 (1999-09-01), Ho et al.
patent: 5967803 (1999-10-01), Ho
Chung Wei Te
Hon Hai - Precision Ind. Co., Ltd.
Paumen Gary F.
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