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This arrangement comprises a pair of symmetrically disposed spring-biased slide latches for retaining a printed circuit (PC) card in a zero insertion force (ZIF) connector with a positive retention force.
English (United States)
This text was extracted from a PDF file.
This is the abbreviated version, containing approximately
96% of the total text.
Page 1 of 1
Latch Retention System for Zif Connectors
This arrangement comprises a pair of symmetrically disposed spring-biased
slide latches for retaining a printed circuit (PC) card in a zero insertion force (ZIF)
connector with a positive retention force.
The pressurized latching system includes two sliding latches 1,1'. The latches
1,1' are anchored to the card cover assembly 2 by means of the two latch slides
3,3' located at the ends of the assembly, as shown in the side and end views of
Figs. 1A and 1B, respectively. Latches 3,3' are spring loaded by two
compression springs 4,4' located in the cover assembly's handle 5. Attached to
the plunger rods 6,6' and protruding from the latches 4,4' are two manually
operated slides 7,7', which exert the retraction force needed to deactivate the
The latching assembly interacts with two 30 degree ramps 8,8', that are
located in the ZIF connectors 9,9'. The outward pressure of the latches 1,1'
causes a force against the two ramps 8,8', which results in a horizontal
translation force on the PC card C. This force causes the card C to be seated
against the two location pins 10,10' that are situated at the rear of the ZIF
connectors 9,9'. The card C is seated and retained under constant pressure by
this system. Lead-in ramps 11,11', on the latches 1,1' allows for simple push-in
insertion of the card assembly 2 into the ZIF connectors 9,9' which in turn allows
the pressurized latches 1,1' to push against the ramps 8,8', causing...