Short smart card connector
View Patent ↗A connector with a cover element ( 80 ) lying in a forward position over an insulative support ( 40 ), allows a smart card to be inserted despite obstructions lying closely behind the connector. The card is initially inserted at a downward-forward incline and then its rear is pushed down so the card is horizontal. Then the cover element is slid to a rearward position to prevent card tilt. Contact blades ( 70 ) have upwardly biased contact ends ( 72 ) that lie substantially in a single transverse plane (Pv) and engage a single row of card contact pads at the front of the card. This allows the cover element rear position to lie only a short distance rearward of its front position so the support supports less than half the card length, thereby allowing a short support to be used. The cover element has a rear portion ( 85 ) bent at a rearward-upward incline and forming a convex lower rear face part (A).
1. An electrical connector for a smart card of rectangular overall shape having a lower face with conducting pads, the pads of a fully inserted card engaging contact ends of elastically deformable conducting blades lying at the bottom of a card-receiving cavity that is formed in part by an insulative support that has a cavity bottom surface ( 46 ) that forms the bottom of the cavity, the connector including a sheet metal cover that is mounted on the support, wherein:
said cover is slideably mounted on the support to slide between a rearward cover position and a forward cover position;
said insulative support forms an inclined surface ( 78 ) that extends at a forward-downward incline below said cavity bottom surface and that guides the front of the card when said card extends at a forward-downward incline during an initial card insertion;
said cover has a rear end that is bent upward to form a chamfer ( 88 ), and in said cover forward position said chamfer and said inclined surface are positioned so the cover chamfer ( 88 ) guides the upper surface of the inclined card while the insulative support inclined surface ( 78 ) guides the lower front of the card, said cover being slideable rearwardly over a card that has been pivoted down to the horizontal after the initial card insertion to press down the card against said contact ends of said blades wherein the rear end of the cover has a surface location that is aligned with a forward end of the inclined surface.
2. The connector described in claim 1 wherein:
said contact ends of said blades are biased to positions above said cavity bottom surface ( 46 ), but are deflectable below said cavity bottom surface;
the vertical distance between said cavity bottom surface and a lower surface of said cover that lies above said cavity bottom surface, at a location rearward of said inclined surface that lies below said cavity bottom, is about equal to the thickness of said smart card, and the cover has a lower surface that presses down the card after the card has been pivoted to the horizontal.