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Multicontact Connector for a Peripheral Via Hole System

IP.com Disclosure Number: IPCOM000081457D
Original Publication Date: 1974-Jun-01
Included in the Prior Art Database: 2005-Feb-28
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Ecker, ME: AUTHOR

Abstract

This connector allows for separate pin connections through the same hole in a printed-circuit board, as well as matched impedance connections.

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Multicontact Connector for a Peripheral Via Hole System

This connector allows for separate pin connections through the same hole in a printed-circuit board, as well as matched impedance connections.

As illustrated in Fig. 1, each pin blank comprises beryllium-copper 4 (1/4 hard) partially covered by an aluminum cap 3.

The pin blank is upset and formed to the shape shown in Fig. 2, which illustrates two of four nested contacts attached to module surface 2 and connected to a circuit card 5. By masking and anodic conversion, aluminum cladding 3 becomes an insulator. This process takes place prior to mounting in card 5.

A group of four contact elements 4 are nested together by locking ring 10. Each of the elements has a cantilever extension 8 below lock 10. Regions 6 on the pin members 4 are contact lobes which engage peripheral via contacts 7.

In the assembly of the pins, module 2 is permitted to register loosely in via holes 7 in the circuit card 5. The tapered sections of the grouped contacts 4 protrude from the underside of board 5. All contact elements are then deflected to one another, so that the distance across opposed contact lobes 6 is sufficiently diminished to allow full entry of the pin into the peripheral hole group in card 5, as shown in Fig. 2. Camming plates 9, shown engaged to the extremity of the contact elements 4 are then removed, allowing the elements to engage the sides of the peripheral via connections 7.

Fig. 3 is a top cross-sectional view o...