Browse Prior Art Database

Method for Retaining/Grounding an Electronic Card Within Card Covers

IP.com Disclosure Number: IPCOM000035239D
Original Publication Date: 1989-Jun-01
Included in the Prior Art Database: 2005-Jan-28
Document File: 2 page(s) / 62K

Publishing Venue

IBM

Related People

Cimijotti, RL: AUTHOR [+4]

Abstract

A method for retaining and grounding an electronic logic card within its card covers is described. This concept provides a means of assuring proper card location and retention with no secondary operations prior to the installation of the top card cover. Card to cover grounding and additional retention is provided in applicable cases with an easy-to-install clip.

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Method for Retaining/Grounding an Electronic Card Within Card Covers

A method for retaining and grounding an electronic logic card within its card covers is described. This concept provides a means of assuring proper card location and retention with no secondary operations prior to the installation of the top card cover. Card to cover grounding and additional retention is provided in applicable cases with an easy-to-install clip.

Fig. 1 illustrates the construction of one style of covered card assembly. An electronic card 1 is positioned on a base cover 2 direction by dimensioning it such that it is an interference fit between rigid locators 3 on one side of the cover and cast pins 4 on the other side. Cast pins 4 become, in effect, integral springs which are spread

(Image Omitted)

slightly to allow card 1 to be inserted and then force card 1 toward rigid locators
3. In an end-to-end direction, card 1 is located by a cast diamond pin 5 in cover 2 which interfaces a round hole 6 in the card 1. A diamond pin, of course, will locate in one direction while allowing slight motion or adjustment to occur in the other, thus providing the movement necessary to yield side-to-side location. Vertically the card 1 resets on four cast pads 7 and is held in position by a rectangular block of foam 8 located on card 1, connector pins (which assembly progresses), and a spring clip (or rubber doughnut) 9 which is a slip fit over the top of diamond card locating pin 5. These parts are compressed by the top cover 10 as it is installed and force the card 1 into contact with the four locating pads 7. Note that the card 1 is prevented from deflecting under spring clip 9 by a boss (not shown) under...