Electrical connectors – With insulation other than conductor sheath – Plural-contact coupling part
Reexamination Certificate
2002-11-12
2004-02-24
Prasad, Chandrika (Department: 2839)
Electrical connectors
With insulation other than conductor sheath
Plural-contact coupling part
C439S260000
Reexamination Certificate
active
06695647
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to an electric connector, and in particular to a card connector connecting to an electric card.
2. Description of the Related Art
Referring to
FIGS. 1 and 2
, a conventional card connector for an electric card, such as a telephone card or an ATM card, to be inserted for connection includes a base
10
and two rows of terminals
20
arranged on the base
10
. The base
10
includes a top surface
11
and a bottom surface
12
, and is formed with a card slot
13
for receiving the electric card. The card slot
13
has an insert port
14
. Each terminal
20
has a contact
21
and a pin
22
. The contacts
21
in the shapes of convex arcs facing toward the top surface
11
of the base are positioned within the card slot. The pins
22
of the two rows of terminals extend out of the bottom surface
12
of the base from a first side near the insert port
14
and a second side opposite to the insert port
14
, respectively.
When being used, the card connector is typically mounted on a face side of a circuit board
90
. An electric card
95
is inserted from the insert port
14
according to an indicated direction on the card (or with connection points
96
facing downward). Then, the connection points
96
may elastically contact the contacts
21
of the two rows of terminals, respectively. At this time, the contacts
21
are elastically biased toward the bottom surface
12
of the base.
In the conventional card connector mentioned above, because all of the contacts of the terminals are convex toward the top surface
11
of the base, there are some following disadvantages during usage.
1. The card has to be inserted according to the indicated direction on the card (or with the connection points
96
facing downward). When the card is oppositely inserted, the machine will not accept the card.
2. Because miniature electrical products are gradually developed, if the layout space of the circuit board is limited, the card connector has to be arranged on a back side of the circuit board. In this case, the contacts
21
of the terminals have to be convex downward. If the card is inserted according to the indicated direction on the card (or with the connection points
96
facing downward), the contacts
21
may not contact the connection points
96
and the card is not accepted similarly.
SUMMARY OF THE INVENTION
An object of the invention is to provide a card connector suitable for the operation according to the indicated direction on the electric card even when the card connector is mounted on a back side of the circuit board.
Another object of the invention is to provide a card connector suitable for card insertions and connections in a face-up manner or a face-down manner, thereby facilitating the user's operation.
To achieve the above-mentioned objects, the invention provides a card connector including a base and two rows of upper terminals. The base has a top surface and a bottom surface and is formed with a card slot for receiving an electric card. The card slot has an insert port from which the electric card may be inserted. The upper terminals are arranged on the base. Each of the upper terminals has a contact positioned within the card slot for elastically contacting the inserted electric card, a pin extending out of the bottom surface of the base, and an extension connecting the contact to the pin. Each of the contacts of the upper terminals is convex toward the bottom surface of the base. Each of the contacts of the upper terminals is elastically biased toward the top surface of the base when contacting the electric card. Each of the pins of the upper terminals extends out of the bottom surface of the base from a side opposite to the insert port of the card slot.
REFERENCES:
patent: 5667408 (1997-09-01), Broschard et al.
patent: 6017246 (2000-01-01), Hisazumi et al.
patent: 6358061 (2002-03-01), Regnier
Prasad Chandrika
Pro-Techtor Inter-national Services
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