Electrical card connector having polarization mechanism

A connector adapted to receive a card having a void in a side thereof, the connector comprising:

• a housing comprising:
• an insulative body;
• a plurality of contacts mounted in the insulative body;
• and
• a shell covering the insulative body and the contacts, thereby defining a receiving space to receive the card;
• and
• a polarization mechanism arranged within the housing, the polarization mechanism including a guiding groove defined in the housing and an elastic piece attached to the housing, the elastic piece having an engaging portion extending towards an inside of the receiving space and a blocking portion engaging with the guiding groove, the guiding groove forming a blocking edge to interfere with the blocking portion;
• wherein
• when the card is correctly inserted into the connector, the void receives the engaging portion therein, and the blocking portion is not blocked by the blocking edge;
• when the card is wrongly inserted into the connector, a side of the card without a void in a matching position presses the engaging portion outwards so that the blocking portion is blocked by the blocking edge;
• wherein
• the housing further includes a slide block moveably mounted on the insulative body, and the engaging portion and the blocking portion are parts of an elastic arm, and the elastic arm is mounted on the slide block;
• wherein
• the guiding groove is defined in the shell, and the blocking portion protrudes out of the shell from the guiding groove.

An electrical card connector assembly for preventing incorrect insertion of an electronic card, comprising:

• an insulative body;
• a plurality of contacts disposed in the insulative body;
• a shield fixedly mounted on the insulative body;
• a sliding block moveable relative to the insulative body and regularly located in a rear position relative to the insulative body for being ready for insertion of the electronic card;
• an elastic piece moved along with said sliding block, said elastic piece including an engaging portion and a blocking portion;
• and
• an electronic card including a notch therein;
• wherein
• when said electronic card is inserted into the insulative body correctly, the elastic piece is deflected less or none in an inner position to have the engaging portion received in the notch and the blocking portion will not interfere with either the insulative body or the shield so that the sliding block is able to be forwardly moved along with the forwardly inserted electronic card;
• when the electronic card is inserted into the insulative body incorrectly, the engaging portion is not received in the notch and is outwardly deflected significantly to have the blocking portion located in an outer portion and will interfere with at least one of the insulative body and the shield if said sliding block is further moved forwardly by said incorrectly inserted card;
• wherein
• said shield defines an elongated slot along a front-to-back direction to allow the blocking portion to move therealong without interference when said electronic card is inserted into the insulative body correctly and the elastic piece is accordingly located in the inner position.