Electrical connectors – With supporting means for coupling part – Supporting plural – independent coupling parts
Reexamination Certificate
2002-11-12
2004-05-18
Prasad, Chandrika (Department: 2839)
Electrical connectors
With supporting means for coupling part
Supporting plural, independent coupling parts
C439S631000
Reexamination Certificate
active
06736672
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to an electric connector, and in particular to a stacked card connector connecting to an electric card.
2. Description of the Related Art
Referring to
FIG. 1
, a conventional double-layerd and stacked card connector is used for an electric card, such as a telephone card or an ATM card, to be inserted into. The card connector includes a lower base
10
, an upper base
15
, two rows of spaced first terminals
25
, two rows of spaced second terminals
30
, and a circuit board
20
.
The lower base
10
is formed with a first slot
11
for receiving an electric card, and the first slot
11
has an insert port
12
. The upper base
15
is stacked above the lower base
10
and formed with a second slot
16
for receiving another electric card, and the second slot
16
has an insert port
17
.
Each first terminal
25
has a contact
26
, an extension
27
and a pin
28
. The contacts
26
are in the shapes of convex arcs facing upward, positioned within the first slot
11
, and well aligned. The pins
28
extend out of the bottom surface of the lower base
10
from a first side near the insert port
12
and a second side opposite to the insert port
12
, respectively.
Each second terminal
30
has a contact
31
, an extension
32
and a pin
33
. The contacts
31
are in the shapes of convex arcs facing upward, positioned within the second slot
16
, and well aligned. The pins
33
extend out of the bottom surface of the upper base
15
from a first side near the insert port
17
and a second side opposite to the insert port
17
, respectively.
The circuit board
20
is positioned between the upper base
15
and the lower base
10
and formed with two rows of connection terminals
21
at a side opposite to the insert port
12
. The pins
33
of the two rows of second terminals are electrically connected to the circuit board
20
and thus to the connection terminals
21
via traces on the circuit board
20
.
According to the above-mentioned structure, when the card connector is mounted on a main board
23
, the pins
28
of the two rows of first terminals
25
and the two rows of connection terminals
21
on the circuit board
20
are electrically connected to the main board
23
. Thus, the two rows of second terminals
30
may be electrically connected to the main board
23
via the connection terminals
21
.
In the conventional stacked card connector, a circuit board
20
is utilized to stack two bases, each of which having a single slot, into a dual-slot connector. However, due to the addition of the circuit board
20
, the manufacturing processes are complicated and the cost may be greatly increased. That is, the cost of a circuit board has to be added. As to the complicated processes, the two rows of connection terminals
21
have to be bonded to the circuit board
20
in advance. Then, the two rows of second terminals
30
have to be bonded to the circuit board Finally, the upper base
15
, the circuit board
20
, and the lower base
10
have to be stacked.
SUMMARY OF THE INVENTION
An object of the invention is to provide a stacked card connector, in which the circuit board may be omitted and the manufacturing processes may be simplified, thereby reducing the manufacturing costs.
To achieve the above-mentioned object, the invention provides a stacked card connector comprising: a base formed with a first slot for receiving a first electric card and a second slot for receiving a second electric card, each of the first and second slots having an insert port, and the second slot being positioned above the first slot; a first row of spaced first terminals, each of the first row of spaced first terminals having a contact, an extension and a pin, the contacts being positioned within the first slot so as to elastically contact the inserted first electric card, the extensions connecting the contacts to the pins respectively and serving as elastic arms, and the pins extending out of a bottom surface of the base; and a first row of spaced second terminals, each of the first row of spaced second terminals having a contact, an extension and a pin, the contacts being positioned within the second slot so as to elastically contact the inserted second electric card, the extensions connecting the contacts to the pins respectively and serving as elastic arms, the pins extending out of the bottom surface of the base from a side opposite to the insert port of the second slot.
REFERENCES:
patent: 6179652 (2001-01-01), Tung et al.
patent: 6231399 (2001-05-01), Meng
patent: 6299455 (2001-10-01), Dong
patent: 6390832 (2002-05-01), Kuo
Prasad Chandrika
Pro-Techtor Inter-national Services
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