公开(公告)号：DE3367995D1

公开(公告)日：1987-01-15

申请号：DE3367995

申请日：1983-12-21

Applicant: IBM

Inventor： GILLETT JOHN BRIAN ,  MIRAGLIA JOHN ALBERT

IPC: H05K1/11 ,  H05K7/14 ,  H05K7/18 ,  H05K5/00 ,  H05K7/02

Abstract: An electronic component assembly including a printed circuit board unit and a protective cover wherein the cover has flexible flap portions that protect electrical contact pads disposed along at least one edge of the printed circuit board unit. The flap portions can be flexed to expose the electrical contact pads. Removal of the flexing force allows the flaps to return to their relaxed, closed positon by means of the internal resiliency of the cover material. Such flexing of the flap portions can be effected by surfaces of a corresponding mating connector so as to expose the contact pads to the contact pins of the mating connector. When the electronic component assembly is removed from the mating connector, the printed circuit board unit is contained by (i.e., completely surrounded by) the cover thereby protecting the unit from physical impact or dust.

公开(公告)号：DE3483209D1

公开(公告)日：1990-10-18

申请号：DE3483209

申请日：1984-12-04

Applicant: IBM

Inventor： GILLETT JOHN BRIAN ,  MIRAGLIA JOHN ALBERT

IPC: H01R12/89 ,  H01R24/00 ,  H01R13/193 ,  H01R23/68

公开(公告)号：DE3477625D1

公开(公告)日：1989-05-11

申请号：DE3477625

申请日：1984-12-04

Applicant: IBM

Inventor： GILLETT JOHN BRIAN ,  MIRAGLIA JOHN ALBERT

IPC: H01R12/50 ,  H01R12/72 ,  H01R12/89 ,  H01R24/00 ,  H01R23/68 ,  H01R13/193

Abstract: A ZIF connector for establishing an electrical connection between the I/O pads (110) of an edge-connected printed circuit board (100) and a set of printed conductors (13) may have one row of or two opposing rows of contacts (50), adjacent or both adjacent and opposite ones of the contacts having different lengths. An upper housing (30) has a plurality of cams (40) mounted thereon, each cam having a different cam surface profile (42). The surface profiles of the cams are staggered into two different lengths corresponding to the lengths of the contacts so that when the cams are actuated by imparting a vertical motion to the upper housing, the contacts will simultaneously engage the 1/0 pads in a staggered fashion. Moreover, the surface profiles of the cams are constructed so that after simultaneous engagement, the contacts perform sequential wipe cycles on the pads. The staggered and sequential wipe cycles promote the stability of the board within the connector without sacrificing electrical integrity.