Browse Prior Art Database

Hot Pluggable Connector

IP.com Disclosure Number: IPCOM000114853D
Original Publication Date: 1995-Feb-01
Included in the Prior Art Database: 2005-Mar-30
Document File: 2 page(s) / 38K

Publishing Venue

IBM

Related People

Bayer, RG: AUTHOR [+5]

Abstract

Present methods for performing "hot plugging" is to provide a connector or connectors with different electrical engagement heights to allow the switching on of different functions (i.e., ground voltage, signals) at a specified timing sequences. This required different pin dies to stamp out the different length pins.

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Hot Pluggable Connector

      Present methods for performing "hot plugging" is to provide a
connector or connectors with different electrical engagement heights
to allow the switching on of different functions (i.e., ground
voltage, signals) at a specified timing sequences.  This required
different pin dies to stamp out the different length pins.

      Applications requested in addition to the different
power/signal sequencing include the ability to shut off certain
functions when the assembled printed circuit card was fully seated in
the card cage to the motherboard.

      This invention describes a two-piece connector which integrates
both functions with a single pin stamping die.  The socket will have
the female contacts and is located on a printed circuit card.  The
header will have the pins and is located on a motherboard which the
cards will plug into.

      The pinned header will use a single pin height thereby
requiring a single stamping die.  To achieve the sequencing between
functions, an insulative material that is resistant to wear is
applied on the pin tips of certain pins to delay the electrical
engagement for the function on these pins.  This same material can
also be applied at the base of specific pins so when the card is
fully seated, the female contacts will engage the insulative material
to shut off specific functions.