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Method for Encapsulating Discrete Electronic Components Into Groups of Pluggable Modules

IP.com Disclosure Number: IPCOM000047807D
Original Publication Date: 1983-Dec-01
Included in the Prior Art Database: 2005-Feb-08
Document File: 2 page(s) / 62K

Publishing Venue

IBM

Related People

Launikitis, JA: AUTHOR [+2]

Abstract

Handling considerations during installation of electronic components into a printed circuit board often make it advantageous to group these components within a single housing in order to minimize assembly time. A method is shown in Fig. 1 that facilitates encapsulation of individually pluggable electronic components into multiple arrays within a single plastic housing without contaminating or physically damaging the gold-plated male connector pin blades, which is of prime importance in order to maintain a functional connection.

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Method for Encapsulating Discrete Electronic Components Into Groups of Pluggable Modules

Handling considerations during installation of electronic components into a printed circuit board often make it advantageous to group these components within a single housing in order to minimize assembly time. A method is shown in Fig. 1 that facilitates encapsulation of individually pluggable electronic components into multiple arrays within a single plastic housing without contaminating or physically damaging the gold-plated male connector pin blades, which is of prime importance in order to maintain a functional connection. The unique feature of this design incorporates flexible high temperature pre-molded silicone rubber inserts attached to moveable clamping jaws within a mold that seal off dimensional tolerance accumulation existing within the component itself and also between adjacent components, which includes pin size tolerances, pin center-to-center tolerances, corner breaks and plating irregularities. A method that may be used in preparing these moveable jaws is as follows: 1. Machine tool steel jaws to proper mold clearances to slide on guide pins within mold and maintain adequate

cavity clearances. 2. Mold silicone rubber inserts with slots on proper pin center-to-center pitch distances and slightly narrower than

component connector pin (approximately .08 mm less than

blade in both width and thickness). 3. Accurately locate and attach insert to moveable mold jaws usi...