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Keying Receptacle Assembly

IP.com Disclosure Number: IPCOM000007798D
Publication Date: 2002-Apr-24
Document File: 3 page(s) / 197K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for consolidating multiple blade ejector keying and grounding into fewer parts, thereby simplifying the card guide assembly. Benefits include lower material and labor costs.

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Keying Receptacle Assembly

Disclosed is a method for consolidating multiple blade ejector keying and grounding into fewer parts, thereby simplifying the card guide assembly. Benefits include lower material and labor costs.

Background

Current snap-in plastic guide rails are individual (i.e. one guide rail per board). Each guide rail has individual snap-in metal contacts for board wiping and ESD pin grounding. Each board wipe contact, ESD pin contact, and guide rail must be installed one at a time. This results in a very labor-intensive assembly, increasing the cost of the chassis. Also, current snap-in plastic guide rails extend the rail to the entire length of the card, preventing the use of formed sheet metal guide rails.

General Description

The keying receptacle assembly is made up of two parts: a plastic body and a metal contact strip. One assembly exists for the board top and an identical assembly exists for the board bottom. The assembly is formed by snapping the metal contact strip into place around the plastic body. The assembled parts are then snapped onto the chassis card cage, while the metal contact strip is grounded to the chassis metal (see Figures 1, 2, and 3).

The plastic body has several sections, each containing square holes for the ejector keys, the ESD ground pin hole, board guide rails, and snap features for mounting it to the chassis. Also, each plastic section is joined to the next with a thin connecting strip of plastic so that one or more sections can...