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Browse Prior Art Database

Flex Circuit Card Edge Connector

IP.com Disclosure Number: IPCOM000121002D
Original Publication Date: 1991-Jul-01
Included in the Prior Art Database: 2005-Apr-02
Document File: 2 page(s) / 82K

Publishing Venue

IBM

Related People

Fiacco, VM: AUTHOR [+5]

Abstract

This connector provides a card-edge-to-board electrical connection for electronic packaging applications requiring a very low noise, high density interconnection with the connectors on a relatively narrow pitch. A method for providing a connector with a flex circuit mounted and electrically connected to a printed circuit board is provided.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 86% of the total text.

Flex Circuit Card Edge Connector

      This connector provides a card-edge-to-board electrical
connection for electronic packaging applications requiring a very low
noise, high density interconnection with the connectors on a
relatively narrow pitch.  A method for providing a connector with a
flex circuit mounted and electrically connected to a printed circuit
board is provided.

      The connector is operated by inserting a card through a slot in
the connector's housing, located and retained by two alignment blocks
and retention screws.  The connector is actuated by pressing two
limbs of a U-shaped spring against pressure distributing blocks
attached to limbs of a flex circuit, also formed into a U-shaped
channel.  The spring is actuated by turning a rotary cam that
transforms the rotary motion to longitudinal motion of a block with
inclined planes built into it.  Movement of the ramp block allows
dimples on each spring limb to follow the inclined planes and permits
the spring to return to its normally closed position.  The freely
closed gap of the U-spring is less than the sum of flex, card, and
pressure block thicknesses.  The difference becomes the spring
deflection in the connector's actuated state.

      The connector is deactuated by turning the rotary cam the
opposite direction.  Limbs of the U-spring are forced apart by their
dimples riding against inclined planes on the ramped block when the
ramp block is forced to travel longitudinally by act...