Electrical card connector with card eject mechanism

Details Electrical card connector with card eject mechanism Electrical card connector with card eject mechanism

2002-06-10

2003-12-02

Vu, Hien (Department: 2833)

Electrical connectors

With coupling separator

Nonconducting pusher

C439S607070, C439S160000

Reexamination Certificate

active

06655973

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention generally relates to an electrical card connector, and more particularly to an electrical card connector with an improved card eject mechanism.
2. Description of the Related Art
Electrical card connectors used for Multimedia cards (MMC) or Secure Digital (SD) cards usually have card eject mechanisms for ejecting inserted cards.
Japanese Patent Publication Nos. 2000-251024, 2000-251025, U.S. Pat. No. 6,332,791B1 and Publication No. 2001/0055896A1 disclose electrical card connectors with similar card eject mechanisms.
FIG. 5
shows a card eject mechanism
6
of an electrical card connector disclosed in US Publication No. 2001/0055896A1. The card eject mechanism
6
includes a coil spring
62
, a movable member
63
, a link rod
64
, and a curved guide groove
66
defined in a base
60
encircling a heart-shaped cam
65
. The guide groove
66
defines a locking position “C” and a releasing position “D”. The coil spring
62
has a front end secured to the base
60
and a rear end connected to the movable member
63
. A rear portion of the movable member
63
is linked with a front end of the link rod
64
. A rear end of the link rod
64
is engaged in the locking position “C” when a card is fully received in the connector and engaged in the releasing position “D” when the card is pushed out of the connector. However, the guide groove
66
described above is defined in an upper portion of the base
60
, thereby enlarging the width of the base
60
. Moreover, the link rod
64
and the movable member
63
are usually required to be hingably linked, which requires a relatively complicated process.
Japanese Patent Publication No. 11-135192 discloses another conventional electrical card connector with a card eject mechanism. The card eject mechanism includes a coil spring, a movable member, and a link rod. The movable member defines a guide groove in a lateral side thereof. The guide groove defines a locking position and a releasing position. One end of the coil spring is secured to a base of the electrical card connector and the other end of the coil spring is connected with the movable member. The link rod has one end secured to the base by insert-molding. The other end of the link rod is received in the guide groove of the movable member and engaged in the locking position when a card is fully received in the electrical card connector and engaged in the releasing position when the card is ejected. However, one end of the link rod is insert-molded with the base, which requires a relatively complicated process and thus increases manufacturing cost.
JP Patent Publication No. 2001-85089 discloses an electrical card connector with a card eject mechanism similar to that of Japanese Patent Publication No. 11-135192. A link rod of the electrical connector is secured to a base by riveting, which takes up much more space and also requires a relatively complicated process.
Hence, an electrical card connector with an improved card eject mechanism is needed to overcome the foregoing shortcomings.
BRIEF SUMMARY OF THE INVENTION
A main object of the present invention is to provide an electrical card connector with an improved card eject mechanism. A link rod of the card eject mechanism is secured to a base by a rear side of a shield.
Another object of the present invention is to provide an electrical card connector with an improved card eject mechanism which is easy for manufacturing and assembly.
An electrical card connector comprises an insulative base, a plurality of conductive terminals, an card eject mechanism and a shield. The insulative base defines a locking indentation at a rear end thereof. The card eject mechanism includes a movable member, a coil spring and a link rod. The link rod has a first end engaging with the movable member at either a locking position or a releasing position of the movable member and a second end received in the indentation of the base. The shield has a hook received in the indentation of the base and engaged with the rear end of the link rod, thereby securing the rear end of the link rod to the base.


REFERENCES:
patent: 6074227 (2000-06-01), Ho et al.
patent: 6113403 (2000-09-01), Oguchi
patent: 6247946 (2001-06-01), Nakamura et al.
patent: 6273737 (2001-08-01), Furusho et al.
patent: 6319029 (2001-11-01), Nishioka
patent: 6379167 (2002-04-01), Zhang et al.

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