Browse Prior Art Database

Module Packaging System that Allows Plugging of Flex Cables

IP.com Disclosure Number: IPCOM000114232D
Original Publication Date: 1994-Nov-01
Included in the Prior Art Database: 2005-Mar-28
Document File: 4 page(s) / 77K

Publishing Venue

IBM

Related People

Brodsky, WL: AUTHOR [+3]

Abstract

Blind plugging a printed circuit board having a pad-on-pad connector on one edge, with limited access, and subsequent plugging of a flexible cable into a second connector on the other edge, along with providing flex cable management (i.e., protection from physical damage, bend radius, etc.) can challenge the physical design of an electronic package. This invention addresses the above challenges.

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This is the abbreviated version, containing approximately 55% of the total text.

Module Packaging System that Allows Plugging of Flex Cables

      Blind plugging a printed circuit board having a pad-on-pad
connector on one edge, with limited access, and subsequent plugging
of a flexible cable into a second connector on the other edge, along
with providing flex cable management (i.e., protection from physical
damage, bend radius, etc.) can challenge the physical design of an
electronic package.  This invention addresses the above challenges.

      The invention describes a packaging system for a high density
printed circuit board that has pad-on-pad connectors on two edges.
These connectors mate to flexible cables.  The first connector is
blind plugged into the machine frame and then the other cable is
manually installed.

      Fig. 1 is a sketch of the system.  Fig. 2 is a sketch of the
frame tracks used to align the board connector to the first cable
(switch) and to align the second cable (I/O) to the board.  The
second cable is aligned in place after the first flex is properly
installed.  Fig. 3 shows the alignment pins that must be added to the
board or module stiffener to align and slide in the tracks.  Fig. 4
shows the alignment pins that are added to the second flex cable to
align and slide in their tracks.

      Due to the pad on pad flex alignment, which uses a
hemi-spherical shaped pin-in-a-hole scheme it is advantageous for the
cable to be retracted from the connector at a slight angle
(approximately 7 degrees) to aid...