Browse Prior Art Database

Zero Insertion Force Card To Board Connector

IP.com Disclosure Number: IPCOM000086228D
Original Publication Date: 1976-Aug-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 44K

Publishing Venue

IBM

Related People

Strup, CF: AUTHOR [+2]

Abstract

This connector assembly electrically and mechanically connects a printed-circuit card to a board while providing low-insertion force for low-contact wear. It is particularly adapted for use in test systems to provide interconnection to both ends of a card from mother boards, which are immovably mounted in frames at either or both ends of the cards and also to provide connection to a device under test. The connector also meets a requirement in test systems in that it contacts the card tab areas on both sides of the printed-circuit card.

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Zero Insertion Force Card To Board Connector

This connector assembly electrically and mechanically connects a printed- circuit card to a board while providing low-insertion force for low-contact wear. It is particularly adapted for use in test systems to provide interconnection to both ends of a card from mother boards, which are immovably mounted in frames at either or both ends of the cards and also to provide connection to a device under test. The connector also meets a requirement in test systems in that it contacts the card tab areas on both sides of the printed-circuit card.

The printed-circuit card is inserted into a groove 10 which extends the length of connector housing 11. The card is positioned with its metallic tab areas in between and in alignment with two opposing rows of contact elements 12 mounted on the inner walls of the connector housing 11. The rows of contact elements 12 are normally spaced apart from each other sufficiently so that the card may be inserted with a zero insertion force.

After the card is inserted, a screw 13 is turned to move a slide block assembly 14 toward the left, as viewed in the drawings. The slide block assembly 14 is attached to a series of movable camming slides 15 which coact with a series of camming surfaces 16 fixed to the inside of the housing. Upon movement toward the left, the slides 15 are cammed to force the contacts 12 against the metallic tab areas on the card. The flat surfaces of the movable slides 15 bear...